Статті в журналах з теми "Low-Power Read-Out Circuit"

Low-power current integrating infinite impulse response filter having flat-passband for sensor read-out integrated circuit is proposed. In a current integrating filter, passband flatness degradation is inevitable due to sinc-like filtering characteristics. In this paper, by proposing a high order infinite impulse response filter architecture, flat-passband characteristic can be achieved. By implementing a filter architecture with a flat passband, the required sampling frequency can be lowered, which in turn can reduce power consumption. Moreover, the proposed high order infinite impulse response filter architecture has a high degree of freedom on adjusting input sample weights. The proposed integrated circuit is implemented in TSMC 65-nm CMOS process and operated on 1.2 V supply voltage.

AbstractLow-cost, light-weight, low-power, large-format, room-temperature, mid-wave infrared (MWIR) detectors are needed for reduced-scale aircraft. An opportunity, suggested by direct-read X-radiography systems, is the use of thin film transistor (TFT) array as read-out integrated circuit (ROIC) for low-cost sensors deposited directly and unpatterned onto this ROIC. TFTs have already been thoroughly optimized for power, weight, large-format, and cost by the flat-panel-display industry. We present experimental investigation of aqueous-spray-deposited, mid-wave-IR, metal-chalcogenide heterojunction CdS/PbS photodiodes for this application. Measured responsivity, detectivity D*, and photoresponse spectra are reported.

A novel idea of 8-Transistor (8T) static random access memory cell with enhanced information stability, sub threshold operation may be outlined. Those prescribed novel built single-ended for dynamic control 8 transistors static RAM (SRAM) cell enhances the static noise margin (SNM) to grater low energy supply. The suggested 8T takes less read and write power supply compared to 6T. Those suggested 8T need higher static noise margin than that from 6T. The portable microprocessor chips need ultralow energy consuming circuits on use battery to more drawn out span. The power utilization might be minimized utilizing non-conventional gadget structures, new circuit topologies, and upgrading the architecture. Although, voltage scaling require of the operation completed over sub threshold for low power consumption, and there will be an inconvenience from exponential decrease in execution. However, to sub threshold regime, that data stability of SRAM cell might a chance to be a amazing issue and worsens for those scaling from claming MOSFET ought to sub-nanometer engineering technology.

This paper presents a power-efficient complementary metal-oxide-semiconductor (CMOS) neural signal-recording read-out circuit for multichannel neuromodulation implants. The system includes a neural amplifier and a successive approximation register analog-to-digital converter (SAR-ADC) for recording and digitizing neural signal data to transmit to a remote receiver. The synthetic neural signal is generated using a LabVIEW myDAQ device and processed through a LabVIEW GUI. The read-out circuit is designed and fabricated in the standard 0.5 μμm CMOS process. The proposed amplifier uses a fully differential two-stage topology with a reconfigurable capacitive-resistive feedback network. The amplifier achieves 49.26 dB and 60.53 dB gain within the frequency bandwidth of 0.57–301 Hz and 0.27–12.9 kHz to record the local field potentials (LFPs) and the action potentials (APs), respectively. The amplifier maintains a noise–power tradeoff by reducing the noise efficiency factor (NEF) to 2.53. The capacitors are manually laid out using the common-centroid placement technique, which increases the linearity of the ADC. The SAR-ADC achieves a signal-to-noise ratio (SNR) of 45.8 dB, with a resolution of 8 bits. The ADC exhibits an effective number of bits of 7.32 at a low sampling rate of 10 ksamples/s. The total power consumption of the chip is 26.02 μμW, which makes it highly suitable for a multi-channel neural signal recording system.

In this paper, a conceptual investigation of the interface between wireless power devices and a retina complementary metal oxide semiconductor (CMOS) neuron integrated circuit (IC) have been presented. The proposed investigation consists of three designs: design-I, design-II, and design-III. Design-I involves a slotted loop monopole antenna as per American National Standards Institute (ANSI) guidelines, which achieve an ultra-wide band ranging from 3.1 GHz to 10.6 GHz. The biocompatible antenna is made on silicon-nitride substrate using on-wafer packaging technology and it is used as a receiver device. The performance of antenna provides a wideband, sufficient power to receive, and low losses due to the avoidance of printed circuit board (PCB) fabrication. A CMOS based multi-stack power harvesting circuit achieves the output power ranging from 4 mW to 2.7 W and corresponds from the selected Radio Frequency (RF) bands of loop antenna is exhibited in design-II. The power efficiency of 40% to 82%, with respect to output powers of 4 mW to 2.7 W, is achieved. Design-III includes a CMOS based retina neuron circuit that employs a dynamic feedback technique and support to achieve the number of read-out spikes. At the end of the interface between wireless power devices and a CMOS retina neuron IC, 50 mV read-out spikes are achieved, with varying light intensity, from 0 mW/cm2 to 2 mW/cm2. The proposed design-II and design-III are implemented and fabricated using commercial CMOS 0.065 µm, Samsung process. The antenna and RF power harvesting IC could be placed on a contact lens platform while retina neuron IC can be implanted after ganglions cells inside the eye. The antenna and harvesting IC are physically connected to the retina circuit in the form of light. This conceptual investigation could support medical professionals in achieving an interfacing approach to restore the image visualization.

Abstract Semiconductor strip sensors applied as solid-state radiation or particle detectors can be used in radiation detection and measurement for various applications in particle physics experiments, X-ray imaging (e.g. medical), or material science. The X-ray imaging devices with spectroscopic and position resolution features are a very important research topic at many institutes and companies worldwide. Short strip silicon detectors are good candidates for X-ray spectroscopy, because of their relatively small capacitance and leakage current. If additionally, strip pitch is below 100 μm, then the high spatial resolution is also possible. In this paper, the analysis and noise optimization of the read-out electronics for short silicon strip detectors with Charge Sensitive Amplifier (CSA) and shaping amplifier (shaper) is presented. The CSA is optimized for the detector capacitance of around 1.5 pF, and the shaper nominal peaking time is about 1 μs (controlled by the sets of switches). We take into account the sources of noise in a radiation imaging system (current parallel noise, voltage series noise, and 1/f or flicker series noise) both internal (related to the front-end electronics itself) but also external, stemming from a sensor, interconnect, or printed circuit board parasitic components. We target the noise level below 40 el. rms, considering low power consumption (a few mW) and limited channel area.

Abstract. Measuring air pressure using a capacitive pressure sensor is a robust and precise technique. In addition, a system that employs such transducers lies within the low power consumption applications such as wireless sensor nodes. In this article a high sensitivity with an elliptical diaphragm capacitive pressure sensor is proposed. This design was compared with a circular diaphragm in terms of thermal stresses and pressure and temperature sensitivity. The proposed sensor is targeted for tyre pressure monitoring system application. Altering the overlapping area between the capacitor plates by decreasing the effective capacitance area to improve the overall sensitivity of the sensor (ΔC ∕ C), temperature sensitivity, and built-up stresses is also examined in this article. Theoretical analysis and finite element analysis (FEA) were employed to study pressure and temperature effects on the behaviour of the proposed capacitive pressure sensor. A MEMS (micro electro-mechanical systems) manufacturing processing plan for the proposed capacitive sensor is presented. An extra-low power short-range wireless read-out circuit suited for energy harvesting purposes is presented in this article. The developed read-out circuitry was tested in terms of sensitivity and transmission range.

Abstract Mixed-valence compounds may provide molecular devices for an energy-efficient, low-power, general-purpose computing paradigm known as quantum-dot cellular automata (QCA). Multiple redox centers on mixed-valence molecules provide a system of coupled quantum dots. The configuration of mobile charge on a double-quantum-dot (DQD) molecule encodes a bit of classical information robust at room temperature. When arranged in non-homogeneous patterns (circuits) on a substrate, local Coulomb coupling between molecules enables information processing. While single-electron transistors and single-electron boxes could provide low-temperature solutions for reading the state of a ∼1 nm scale molecule, we propose a room-temperature read-out scheme. Here, DQD molecules are designed with slightly dissimilar quantum dots. Ab initio calculations show that the binary device states of an asymmetric molecule have distinct Raman spectra. Additionally, the dots are similar enough that mobile charge is not trapped on either dot, allowing device switching driven by the charge configuration of a neighbor molecule. A technique such as tip-enhanced Raman spectroscopy could be used to detect the state of a circuit comprised of several QCA molecules.

Recently, due to their abundant benefits, current-mode instrumentation amplifiers have received considerable attention in medical instrumentation and read-out circuit for biosensors. This paper is focused on the design of current-mode instrumentation amplifiers for portable, implantable, and wearable electrocardiography and electroencephalography applications. To this end, a CMOS differential voltage second-generation current conveyor (DVCCII) based on a linear transconductor is presented. A new band-pass instrumentation amplifier, based on the designed DVCCII, is also implemented in this paper. The concept of the proposed differential voltage current conveyor and instrumentation amplifier is validated numerically and their predicted performance is presented. The simulation results of the presented circuits were tested for 0.18 μm TSMC CMOS technology in a post layout simulation level using the Cadence Virtuoso tool with a ±0.9 V power supply, and demonstrated that the designed DVCCII has a wide dynamic range of ±400 mV and ±0.85 mA and a power consumption of 148 μW. The layout of the DVCCII circuit occupies a total area of 0.378 μm2. It is shown that the designed DVCCII benefits from good linearity over a wide range of input signals and provides a low input impedance at terminal X. Two versions of the proposed band-pass instrumentation amplifier using pseudo resistances were designed with different specifications for two different applications, namely for EEG and ECG signals. Numerical analyses of both designs show proper outputs and frequency responses by eliminating the undesired artifact and DC component of the EEG and ECG input signals.

Highly sensitive ultraviolet (UV) photodetectors are highly desired for industrial and scientific applications. However, the responsivity of silicon photodiodes in the UV wavelength band is relatively low due to high-density Si/SiO2 interface states. In this paper, a coplanar avalanche photodiode (APD) was developed with a virtual guard ring design. When working in Geiger mode, it exhibited a strong UV response. The responsivity of 4 × 103 A/W (corresponding to a gain of 8 × 106) at 261 nm is measured under the incident power of 0.6 μW with an excess bias of 1.5 V. To the best of our knowledge, the maximum 3-dB bandwidth of 1.4 GHz is the first report ever for a Si APD when working in the Geiger mode in spite of the absence of an integrated CMOS read-out circuit.

The survival rate for sudden cardiac arrest (SCA) is low, and patients with long-term risks of SCA are not adequately alerted. Understanding SCA’s characteristics will be key to developing preventive strategies. Many lives could be saved if SCA’s early onset could be detected or predicted. Monitoring heart signals continuously is essential for diagnosing sporadic cardiac dysfunction. An electrocardiogram (ECG) can be used to continuously monitor heart function without having to go to the hospital. A zeolite-based dry electrode can provide safe on-skin ECG acquisition while the subject is out-of-hospital and facilitate long-term monitoring. To the ECG signal, a low-power 1 μW read-out circuit was designed and implemented in our prior work. However, having long-term ECG monitoring outside the hospital, i.e., high battery life, and low power consumption while transmission and reception of ECG signal are crucial. This paper proposes a prototype with a 10-bit resolution ADC and nRF24L01 transceivers placed 5 m apart. The system uses the 2.4 GHz worldwide ISM frequency band with GFSK modulation to wirelessly transmit digitized ECG bits at 250 kbps data rate to a physician’s computer (or similar) for continuous monitoring of ECG signals; the power consumption is only 11.2 mW and 4.62 mW during transmission and reception, respectively, with a low bit error rate of ≤0.1%. Additionally, a subject-wise cross-validated, three-fold, optimized convolutional neural network (CNN) model using the Physionet-SCA dataset was implemented on NVIDIA Jetson to identify the irregular heartbeats yielding an accuracy of 89% with a run time of 5.31 s. Normal beat classification has an F1 score of 0.94 and a ROC score of 0.886. Thus, this paper integrates the ECG acquisition and processing unit with low-power wireless transmission and CNN model to detect irregular heartbeats.

To adapt to varied working situations, the latest biomedical imaging applications require low energy consumption, high performance, and extensive energy-performance scalability. State-of-the-art electronics with higher sensitivity, higher counting rate, and finer time resolution are required to create higher precision, higher temporal resolution, and maximum contrast biomedical images. In recent days, the system’s power consumption is important critically in modern VLSI circuits particularly for the low power application. In order to decrease the power, a power optimization technique must be used at various design levels. The low power use of logic cells is a proficient technique for decreasing the circuit level power. Dual Feedback edge triggered Flip Flop (DFETFF) is considered for biomedical imaging applications in the proposed system. Initially, the high dynamic range voltage is given as input signal. The comparator output is then retried at the comparator end. The integration capacitor is employed for storing remaining voltage signal. The comparator voltage is then given to the capacitor reset block. In the proposed work, a capacitor-reset block that employs clock signal takes up a dual-feedbackedge-triggered Flip-flop as an alternative of a conventional type for reducing the final output signals errors. Dual feedback loops assure that feedback loops do not tri-state at the time of SET restoration, a scheme that could lead to SEUs in latches if a single delay component and a single feedback loop are used. In digital system, Clock gating is a competent method of lessening the overall consumption of power along with deactivating the clock signal selectively and is useful for controlling the usage of clock signal asynchronously in reference to input-signal current. The integration-control (Vint) signal is employed in controlling the integration time. On the termination of integration, the signal level phase is kept, also similar one is send to arrangement all through read period. As a result, the simulation was carried out after the design layout and the estimations of performance were made and are compared with traditional approaches to prove the proposed mechanism effectiveness for future biomedical applications.

The data movement between the processing and storage units has been one of the most critical issues in modern computer systems. The emerging Resistive Random Access Memory (RRAM) technology has drawn tremendous attention due to its non-volatile ability and the potential in computation application. These properties make them a perfect choice for application in modern computing systems. In this paper, an 8-bit radix-4 non-volatile parallel multiplier is proposed, with improved computational capabilities. The corresponding booth encoding scheme, read-out circuit, simplified Wallace tree, and Manchester carry chain are presented, which help to short the delay of the proposed multiplier. While the presence of RRAM save computational time and overall power as multiplicand is stored beforehand. The area of the proposed non-volatile multiplier is reduced with improved computing speed. The proposed multiplier has an area of 785.2 μm2 with Generic Processing Design Kit 45 nm process. The simulation results show that the proposed multiplier structure has a low computing power at 161.19 μW and a short delay of 0.83 ns with 1.2 V supply voltage. Comparative analyses are performed to demonstrate the effectiveness of the proposed multiplier design. Compared with conventional booth multipliers, the proposed multiplier structure reduces the energy and delay by more than 70% and 19%, respectively.

Abstract On 23rd August 2018, the China Spallation Neutron Source (CSNS) located in Dongguan operated 4 neutron instruments. In the future, twenty neutron spectrometers will be built to provide multidisciplinary platforms for scientific research by national institutions, universities, and industries. Engineering Material Diffractometer (EMD), which will be used for strain measurements in engineering materials and components, will be constructed at the Beamline 8 in 2022. A novel thermal neutron detector, which will comply with the requirements of EMD application, is being developed. This detector will consist of 6LiF/ZnS(Ag) scintillation screens, wavelength shifting fiber (WLSF) arrays, a silicon photomultiplier (SiPM) and Application Specific Integrated Circuit (ASIC) read-out electronics. Each scintillation screen will be inclined with respect to the incident neutron beam at a grazing angle θ = 17°. Such geometry will not only improve the spatial resolution of detectors but also the neutron detection efficiency. The prototype of detector module has been tested at the neutron Beamline 20 at the CSNS. The experimental results obtained for this prototype illustrate that the pixel size of detector module is 3 mm and the detection efficiency exceeds 40% at the neutron wavelength of 1 Å. Based on these results, we design and manufacture the final version of the detector for the EMD application, which is characterized by low power consumption, highly integrated and easy to install. 70 such detectors will be installed till the end of 2021.

In this paper we investigated a pulse oximetry-based method for mobile devices. This method obtains bio-signals related to blood pulsation in transparent parts of body. The most widely accepted field for use of this method is hospital care. In these cases a pulse oximeter is the best solution for the monitoring of emergency patients. A promising field for pulse oximetry is physical exercise. It only requires simple clips such as ear-clips, finger-clips, headbands etc. However this method presents some difficulties: weak signal, noise ratio, motion artefacts, low perfusion. We used a MAX30100 Oximeter and Heart Rate Sensor integrated circuit to obtain signals of blood pulse waves from red and infrared light emission diodes (LED). This device measures the oxygen saturation of a person’s blood by placing an LED and a photodetector against the thin skin of a person’s body, such as a fingertip, wrist or earlobe. The MAX30100 is a 14-pin surface mount integrated circuit that contains sensors for measuring a person’s heart rate. It can also indirectly determine the oxygen saturation of a person’s blood. The MAX30100 provides a complete pulse oximetry and heart rate measurement solution for medical monitors and wearable fitness devices. As each LED emits light into a person’s finger, the integrated photodetector measures variations in light caused by changes in blood volume. An integrated 16-bit analog to digital converter (ADC) with programmable sample rate converts the photodetector output to a digital value. The MAX30100 filters out ambient light that can interfere with an accurate reading. Data are read through a serial I2C interface to computer for further processing. The LED current can be programmed from 0 to 50 mA with proper supply voltage. The LED pulse width can be programmed from 200 µs to 1.6 ms to optimize measurement accuracy and power consumption based on use cases. The SpO2 algorithm is relatively insensitive to the wavelength of the infrared LED, but the red LED’s wavelength is critical to correct interpretation of the data. The temperature sensor data can be used to compensate errors with ambient temperature changes. During the experiments we registered oxygen concentration values under different conditions. With low muscular activity we observed high stability and repeatability of measuring values under various exterior conditions. However, with high muscular activity there were various artefacts in the gauged signals that led to contortion of effects. We identified the boundaries of the validity of measuring and propose the use of an adapted filter in order to distinguish pulse waves from optical signals more reliably. These devices can be applied in fitness training , medical monitoring and used as wearable devices.

Abstract Static Random-Access Memory (SRAM) is widely used in cache memory, microprocessors, general computing applications and electronic circuits involving ASIC, FPGA and CPLD. The most commonly used SRAM is the 6T SRAM. However, it incurs higher power consumption and degraded signal to noise margin (SNM) during write and read operations. To overcome these shortcomings, a single ended power gated 11T SRAM for low power operation is proposed. The power consumption reduction is achieved using power gating through virtual VSS (VVSS) signal and transmission gates. Due to the introduction of transmission gates, memory cells realize enhanced write margin characteristics as compared to existing technologies. The proposed cell realizes 33.33% lower power consumption and 50% improvement in read SNM as compared to existing SRAM technologies. To study the impact of technology scaling on our proposed design, the work is carried out in Cadence Virtuoso® tool using both 180nm CMOS technology and BPTM 32nm FinFET technology.

Designing of Complementary Metal Oxide Semiconductor (CMOS) technology based VLSI circuits in deep submicron range includes many challenges like tremendous increase of leakage power. Design is also easily affected by process variation. The Carbon NanoTube Field Effect Transistor (CNTFET) is an alternative for Metal Oxide Semiconductor Field Effect Transistor (MOSFET) for nanoscale range VLSI circuits design. CNTFET offers best performance than MOSFET. It has high stability and consumes least power. Static Random Access Memory (SRAM) cells play a vital role in cache memory in most of the electronic circuits. In this paper, we have proposed a high stable and low power CNTFET based 8Transistor (8T) SRAM cell. The performance of proposed 8T SRAM cells for nominal chiral value (all CNTFET with [Formula: see text], [Formula: see text]) and Dual chiral value (NCNTFET with [Formula: see text], [Formula: see text] and PCNTFET [Formula: see text], [Formula: see text]) is compared with that of conventional 6T and 8T cells. From the simulation results, it is noted that the proposed structure consumes less power than conventional 6T and 8T cells during read/write operations and gives higher stability during write and hold modes. It consumes higher power than conventional 6T and 8T cells during hold mode and provides lower stability in read mode due to direct contact of bit lines with storage nodes. A comparative analysis of proposed and conventional 8T MOSFET SRAM has been done and the SRAM parameters are tabulated. The simulation is carried out using Stanford University 32[Formula: see text]nm CNTFET model in HSPICE simulation tool.

Non-Von Neumann computing application constituted by artificial synapses based on electrochemical random-access memory (ECRAM) has aroused tremendous attention owing to its capability to perform parallel operations, thus reducing the cost of time and energy spent [1-3]. Existing ECRAM synapses comprise two-terminal memristors and three-terminal synaptic transistors (SynT). While low cost, scalability, and high density are the highlights for memristors, their nonlinear, asymmetric state modulation, high ON current withdrawal, and sneak path in crossbar array integration prevent them from becoming the ideal synaptic elements for artificial neural networks (ANN) [4]. SynT configuration, on the other hand, offers an additional electrolyte-gated control from which ion doping content can be monitored via redox reactions, thus decoupling write-read actions and improving the linearity of programming states [5-6]. Nevertheless, existing SynTs suffer from different integration issues stemming from liquid-based ionic conductors and manually exfoliated channels. Moreover, several kinds of SynTs possess highly conductive channels in the range of µS to mS, significantly scaling up the energy spent for analog states reading. Despite having numerous communications on the performance of different ECRAM, a comprehensive electrochemical view of ion intercalation into the active material, the main root of conductance modulation, is clearly missing. In this work, we present the elaboration procedure of an all-solid-state synaptic transistor composed of nanoscale electrolyte and channel layers. The devices have been elaborated on 8’’ Silicon wafers using microfabrication processes compatible with conventional semiconductor technology and CMOS back end of line (BEoL) integration. (Figure 1a) We demonstrate the excellent synaptic plasticity properties of short-term potentiation (STP) and long-term potentiation (LTP) of our SynT. We performed tests to study the correlation between linearity, asymmetry, and the number of analog states. By averaging the amount of injected ions per write operation, we estimated the energy consumed for switching among adjacent states of this device is 22.5 pJ, yielding area-normalized energy of 4 fJ/µm2. In addition, operating in the range of nS, our SynTs meet the critical criteria of low energy consumption for both write and read operations. Endurance was highlighted by cycling in ambient conditions with 100 states of potentiation and depression for over 1000 cycles with only a slight variation of Gmax/Gmin ratio of 6.2 % (Figure 1b, c). Approximately 95 % accuracy in MNIST pattern recognition test on ANN in the crossbar array configuration has been obtained by simulation with SynTs as synaptic elements reassured SynT is a promising candidate for future neuromorphic computing hardware. To shed light on the properties of intercalation phenomena of Li ions into the TiO2 layer, a further electrochemical study on a cell comprising Ti/TiO2/LiPON/Li corresponding to the SynT gate stack was performed. This understanding will help to elucidate the correlation with conductance modulation characteristics for a synaptic transistor. Multiple tests were carried out, including cyclic voltammetry (CV) with different scan rates, rate capability with Galvanostatic cycling with potential limit (GCPL), and electrochemical impedance spectroscopy (EIS) on different states of charge. A circuit model was introduced to fit the frequency response of the cell, and it explained well the behavior of charging capability at different OCV (Figure 1d). References [1] P. Narayanan et al., “Toward on-chip acceleration of the backpropagation algorithm using nonvolatile memory,” IBM J. Res. Dev., vol. 61, no. 4/5, p. 11:1-11:11, Jul. 2017, doi: 10.1147/JRD.2017.2716579. [2] J. Tang et al., “ECRAM as Scalable Synaptic Cell for High-Speed, Low-Power Neuromorphic Computing,” in 2018 IEEE International Electron Devices Meeting (IEDM), San Francisco, CA, Dec. 2018, p. 13.1.1-13.1.4. doi: 10.1109/IEDM.2018.8614551. [3] Y. Li et al., “In situ Parallel Training of Analog Neural Network Using Electrochemical Random-Access Memory,” Front. Neurosci., vol. 15, p. 636127, Apr. 2021, doi: 10.3389/fnins.2021.636127. [4] M. A. Zidan, H. A. H. Fahmy, M. M. Hussain, and K. N. Salama, “Memristor-based memory: The sneak paths problem and solutions,” Microelectron. J., vol. 44, no. 2, pp. 176–183, Feb. 2013, doi: 10.1016/j.mejo.2012.10.001. [5] Y. van de Burgt et al., “A non-volatile organic electrochemical device as a low-voltage artificial synapse for neuromorphic computing,” Nat. Mater., vol. 16, no. 4, pp. 414–418, Apr. 2017, doi: 10.1038/nmat4856. [6] E. J. Fuller et al., “Li-Ion Synaptic Transistor for Low Power Analog Computing,” Adv. Mater., vol. 29, no. 4, p. 1604310, Jan. 2017, doi: 10.1002/adma.201604310. Figure 1

The ultimate aim of a memory designer is to design a memory cell which could consume low power with high data stability in the deep nanoscale range. The implementation of Very Large-Scale Integration (VLSI) circuits using MOSFETs in nanoscale range faces many issues such as increasing of leakage power and second-order effects that are easily affected by the PVT variation. Hence, it is essential to find the best alternative of MOSFET for deep submicron design. The Carbon Nanotube Field Effect Transistor (CNTFET) can eradicate all the demerits of MOSFET and be the best replacement of MOSFET for nanoscale range design. In this paper, a 10T CNTFET Static Random Access Memory (SRAM) cell is proposed. The power consumption and Static Noise Margin (SNM) are analyzed. The power consumption and stable performance of the proposed 10T CNTFET SRAM cell are compared with that of conventional 10T CNTFET SRAM cell. The power and stability analyses of the proposed 10T and conventional 10T CNTFET SRAM cells are carried out for the CNTFET parameters such as pitch and chiral vector ([Formula: see text]). The power and SNM analyses are carried out for [Formula: see text]20% variation of oxide thickness (Hox), different dielectric constant (Kox). The supply voltage varies from 0.9[Formula: see text]V to 0.6[Formula: see text]V and temperature varies from 27∘C to 125∘C. The simulation results show that the proposed 10T CNTFET SRAM cell consumes lesser power than conventional 10T CNTFET SRAM cell during the write, hold and read modes. The write, hold and read stability of the proposed 10T CNTFET SRAM cell are higher as compared with that of conventional 10T CNTFET SRAM. The conventional and proposed 10T SRAM cells are also implemented using MOSFET. The stability and power performance of proposed 10T SRAM cell is also as good as conventional 10T SRAM for MOSFET implementation. The proposed 10T SRAM cell consumes lesser power and gives higher stability than conventional 10T SRAM cell in both CNTFET and MOSFET implementation. The simulation is carried out using Stanford University 32[Formula: see text]nm CNTFET model in HSPICE simulation tool.

A 16-pixel terahertz (THz) receiver front-end working at room temperature was designed, built, and measured in this paper. The designed receiver front-end is based on the antenna-coupled AlGaN/GaN high-electron-mobility transistor (HEMT) THz linear detector array (TeraLDA) and a 16-way THz power divider. The local oscillator (LO) signal is divided by the power divider into 16 ways and transmits to the TeraLDA. Each detector contains a planar unified antenna printed on a 150 μm-thick sapphire substrate and a transistor fabricated on AlGaN/GaN heterostructure. There are 16 silicon hemispheric lenses located on the TeraLDA to increase the responsivity of the TeraLDA. The focus of each lens is aligned in the center of the TeraLDA pixels. Depending on different read out circuits, the receiver front-end could work in homodyne and heterodyne modes. The 16-way power divider is a four-stage power divider that consists of fifteen same 2-way dividers, and was fabricated by bulk silicon microelectromechanical systems (MEMS) technology to achieve low insertion loss (IL). This designed receiver front-end could be a key component of a THz coherent focal plane imaging radar system, that may play a crucial role in nondestructive 3D imaging application.

Quantum-dot cellular automata (QCA) has come out as one of the potential computational structures for the emerging nanocomputing systems. It has a large capacity in the development of circuits with high space density and dissipation of low heat and allows faster computers to develop with lower power consumption. The QCA is a new appliance to realize nanolevel digital devices and study and analyze their various parameters. It is also a potential technology for low force and high-density memory plans. Large memory designs in QCA show unique features because of their architectural structure. In QCA-based architectures, memory must be maintained in motion, i.e., the memory state has to be continuously moved through a set of QCA cells. These architectures have different features, such as the number of bits stored in a loop, access type (serial or parallel) and cell arrangement for the memory bank. However, the decisive features of the QCA memory cell design are the number of cells, to put off the use of energy. Although the review and study of the QCA-based memories are very important, there is no complete and systematic literature review about the systematical analyses of the state of the mechanisms in this field. Therefore, there are five main types to provide systematic reviews about the QCA-based memories; including read only memory (ROM), register, flip-flop, content addressable memory (CAM) and random access memory (RAM). Also, it has provided the advantages and disadvantages of the reviewed mechanisms and their important challenges so that some interesting lines for any coming research are provided.

The Front end read out circuits are major block in the implementation of Capacitive MEMS accelerometer. Front end read-out circuits comprises of preamplifier block containing folded cascode fully differential operational amplifier which are required for the signal conditioning of the signals received from the MEMS sensors. The op-amps are prime elements in design and implementation of mixed signal integrated circuits. The high gain and low power of the designed circuits helps in the designing of high precision IC’s for numerous application. Amongst the available topologies folded cascode topology plays vital role in the design and development of low power, high gain read out circuits. This paper illustrates the design and analysis of low power, high gain fully differential Folded Cascode Operational Amplifier for front end read out circuits. The designed op-amp exhibits a power consumption or dissipation of 92.14 μW and relatively higher open loop DC gain value with a value calculated at 81.33 dB by employing folded cascode topology. The UGB and Phase Margin for the selected design are 35 MHz and 83.60 respectively. The design operates at 5V power supply with the bias current of 12.11 μA. The circuit design and simulations have been implemented using 0.18 μm CMOS technology.

This paper presents a circuit-level technique of designing a low power and half select free 10T Static Random-Access Memory Cell (SRAM). The proposed cell works with single end read operation and differential write operation. The proposed bit-cell is free from half select issue and supports bit interleaving format. The presented 10T cell exhibits 40.75% lower read power consumption in comparison to conventional 6T SRAM cell, attributed to reduction of activity factor during read operation. The loop cutting transistors used in core latch improve write signal-to-noise margin (WSNM) by 14.94% and read decoupled structure improve read signal-to-noise margin (RSNM) by [Formula: see text] as compared to conventional 6T SRAM. In the proposed work, variability analysis of significant design parameters such as read current, stand-by SNM, and read power of the projected 10T SRAM cell is presented and compared with considered topologies. Mean value of hold static noise margin of the cell for 3000 samples is [Formula: see text] times higher than the considered D2p11T cell. The proposed 10T cell shows [Formula: see text] and [Formula: see text] narrower read access time and write access time, respectively, as compared to conventional 6T SRAM cell. Read current to bit-line leakage current ratio of the proposed 10T cell has been investigated and is improved by [Formula: see text] as compared to conventional 6T SRAM cell. The write power delay product and read power delay product of the proposed 10T cell are [Formula: see text] and [Formula: see text] lower than conventional 6T SRAM cell. In this work, cadence virtuoso tool with Generic Process Design Kit (GPDK) 45[Formula: see text]nm technology file has been utilized to carry out simulations.

Neuroscience research into how complex brain functions are implemented at an extra-cellular level requires in vivo neural recording interfaces, including microelectrodes and read-out circuitry, with increased observability and spatial resolution. The trend in neural recording interfaces toward employing high-channel-count probes or 2D microelectrodes arrays with densely spaced recording sites for recording large neuronal populations makes it harder to save on resources. The low-noise, low-power requirement specifications of the analog front-end usually requires large silicon occupation, making the problem even more challenging. One common approach to alleviating this consumption area burden relies on time-division multiplexing techniques in which read-out electronics are shared, either partially or totally, between channels while preserving the spatial and temporal resolution of the recordings. In this approach, shared elements have to operate over a shorter time slot per channel and active area is thus traded off against larger operating frequencies and signal bandwidths. As a result, power consumption is only mildly affected, although other performance metrics such as in-band noise or crosstalk may be degraded, particularly if the whole read-out circuit is multiplexed at the analog front-end input. In this article, we review the different implementation alternatives reported for time-division multiplexing neural recording systems, analyze their advantages and drawbacks, and suggest strategies for improving performance.

This project presents circuit design of a low-power delay buffer. The proposed delay buffer uses several new techniques to reduce its power consumption. Since delay buffers are accessed sequentially, it adopts a ring-counter addressing scheme. In the ring counter, double-edge-triggered (DET) flip-flops are utilized to reduce the operating frequency by half and the C-element gated-clock strategy is proposed. A novel gated-clock-driver tree is then applied to further reduce the activity along the clock distribution network. Moreover, the gated-driver-tree idea is also employed in the input and output ports of the memory block to decrease their loading, thus saving even more power. And also, we are presenting less area over head in this project by using FIFO (First In First Out) technique. FIFO is a technique, which is having the capability to store the DATA with out any write operation and retrieving the DATA without any read operation.

AbstractThis paper presents a motion-sensing device with the capability of harvesting energy from low-frequency motion activities. Based on the high surface area reverse electrowetting-on-dielectric (REWOD) energy harvesting technique, mechanical modulation of the liquid generates an AC signal, which is modeled analytically and implemented in Matlab and COMSOL. A constant DC voltage is produced by using a rectifier and a DC–DC converter to power up the motion-sensing read-out circuit. A charge amplifier converts the generated charge into a proportional output voltage, which is transmitted wirelessly to a remote receiver. The harvested DC voltage after the rectifier and DC–DC converter is found to be 3.3 V, having a measured power conversion efficiency (PCE) of the rectifier as high as 40.26% at 5 Hz frequency. The energy harvester demonstrates a linear relationship between the frequency of motion and the generated output power, making it highly suitable as a self-powered wearable motion sensor.

Spintronics-based nonvolatile components in neuromorphic circuits offer the possibility of realizing novel functionalities at low power. Current-controlled electrical switching of magnetization is actively researched in this context. Complex oxide heterostructures with perpendicular magnetic anisotropy (PMA), consisting of SrRuO3 (SRO) grown on SrTiO3 (STO) are strong material contenders. Utilizing the crystal orientation, magnetic anisotropy in such simple heterostructures can be tuned to either exhibit a perfect or slightly tilted PMA. Here, we investigate current induced magnetization modulation in such tailored ferromagnetic layers with a material with strong spin-orbit coupling (Pt), exploiting the spin Hall effect. We find significant differences in the magnetic anisotropy between the SRO/STO heterostructures, as manifested in the first and second harmonic magnetoresistance measurements. Current-induced magnetization switching can be realized with spin-orbit torques, but for systems with perfect PMA this switching is probabilistic as a result of the high symmetry. Slight tilting of the PMA can break this symmetry and allow the realization of deterministic switching. Control over the magnetic anisotropy of our heterostructures therefore provides control over the manner of switching. Based on our findings, we propose a three-terminal spintronic memristor, with a magnetic tunnel junction design, that shows several resistive states controlled by electric charge. Non-volatile states can be written through SOT by applying an in-plane current, and read out as a tunnel current by applying a small out-of-plane current. Depending on the anisotropy of the SRO layer, the writing mechanism is either deterministic or probabilistic allowing for different functionalities to emerge. We envisage that the probabilistic MTJs could be used as synapses while the deterministic devices can emulate neurons.

This article is a comparison of two remarkably different takes on a single subject, namely the shifting meaning of the word ‘publishing’ brought about by the changes in literacy habits related to Web 2.0. One the one hand, we have Andrew Keen’s much lambasted 2007 book The Cult of the Amateur, which is essentially an attempt to defend traditional gatekeeper models of cultural production by denigrating online, user-generated content. The second is Spin journalist Andy Greenwald’s Nothing Feels Good, focusing on the Emo subculture of the early 2000s and its reliance on Web 2.0 as an integral medium for communication and the accumulation of subcultural capital. What I want to suggest in this article is that these two books, with their contrasting readings of Web 2.0, both tell us something specific about what the word “publishing” means and how it is currently undergoing a significant change brought about by a radical adaptation of literacy practices. What I think both books also do is give us an insight into how those changes are being interpreted, to be rejected on the one hand and applauded on the other. Both books have their faults. Keen’s work can fairly easily be passed off as a sort of cantankerous reminiscence for the legitimacy of an earlier era of publishing, and Greenwald’s Emos have, like all teen subcultures, changed somewhat. Yet what both books portray is an attempt to digest how Web 2.0 has altered perceptions of what constitutes legitimate speaking positions and how that is reflected in the literacy practices that shape the relationships among authors, readers, and the channels through which they interact. Their primary difference is a disparity in the value they place on Web 2.0’s amplification of the Internet’s use as a social and communicative medium. Greenwald embraces it as the facilitator of an open-access dialogue, whereas Keen sees it as a direct threat to other, more traditional, gatekeeper genres. Accordingly, Keen begins his book with a lament that Web 2.0’s “democratization” of media is “undermining truth, souring civic discourse and belittling expertise, experience, and talent … it is threatening the very future of our cultural institutions” (15). He continues, Today’s editors, technicians, and cultural gatekeepers—the experts across an array of fields—are necessary to help us to sift through what’s important and what’s not, what is credible from what is unreliable, what is worth spending our time on as opposed to the white noise that can be safely ignored. (45) As examples of the “white noise,” he lists some of the core features of Web 2.0—blogs, MySpace, YouTube and Facebook. The notable similarity between all of these is that their content is user generated and, accordingly, comes from the position of the personal, rather than from a gatekeeper. In terms of their readership, this presents a fundamental shift in an understanding of authenticated speaking positions, one which Keen suggests underwrites reliability by removing the presence of certifiable expertise. He looks at Web 2.0 and sees a mass of low grade, personal content overwhelming traditional benchmarks of quality and accountability. His definition of “publishing” is essentially one in which a few, carefully groomed producers express work seen as relevant to the wider community. The relationship between reader and writer is primarily one sided, mediated by a gatekeeper and rests on the assumption by all involved that the producer has the legitimacy to speak to a large, and largely silent, readership. Greenwald, by contrast, looks at the same genres and comes to a remarkably different and far more positive conclusion. He focuses heavily on the lively message boards of the social networking site Makeoutclub, the shift to a long tail marketing style by key Emo record labels such as Vagrant and Drive-Thru Records and, in particular, the widespread use of LiveJournal (www.livejournal.com) by suburban, Emo fixated teenagers. Of this he writes: The language is inflated, coded as ‘adult’ and ‘poetic’, which often translates into affected, stilted and forced. But if one can accept that, there’s a sweet vulnerability to it. The world of LiveJournal is an enclosed circuit where everyone has agreed to check their cynicism at the sign on screen; it’s a pulsing, swoony realm of inflated emotions, expectations and dialogue. (287) He specifically notes that one cannot read mediums like LiveJournal in the same style as their more traditional counterparts. There is a necessity to adopt a reading style conducive to a dialogue devoid of conventional quality controls. It is also, he notes, a heavily interconnected, inherently social medium: LiveJournals represent the truest and easiest realization of the essential teenage (and artistic) tenet of the importance of a ‘room of one’s own’, and yet the framework of the website is enough to make each individual room interconnected into a mosaic of richly felt lives. (288) Where Keen sees Web 2.0 as a shift way from established cultural forums, Greenwald sees it as an interconnected conversation. His definition of publishing is more fluid, founded on a belief not in the authenticity of a single, validated voice but on the legitimacy of interaction and communication entirely devoid of any gatekeepers. Central to understanding the difference between Greenwald and Keen is the issue or whether or not we accept the legitimacy of personal voices and how we evaluate the kind of reading practices involved in interpreting them. In this respect, Greenwald’s reference to “a room of one’s own” is telling. When Virginia Woolf wrote A Room of One’s Own in 1929, Web 2.0 wasn’t even a consideration, but her work dealt with a similar subject matter, detailing the key role the novel genre played in legitimising women’s voices precisely because it was “young enough to be soft in [their] hands” (74). What would eventually emerge from Woolf’s work was the field of feminist literary criticism, which hit its stride in the mid-eighties. In terms of its understanding of the power relations inherent to cultural production, particularly as they relate to gatekeeping, it’s a rich academic tradition notably lacking in the writing on Web 2.0. For example, Celia Lury’s essay “Reading the Self,” written more than ten years before the popularisation of the internet, looks specifically at the way in which authoritative speaking positions gain their legitimacy not just through the words on the page but through the entire relationships among author, genre, channels of distribution, and readership. She argues that, “to write is to enter into a relationship with a community of readers, and various forms of writing are seen to involve and imply, at any particular time, various forms of relationship” (102). She continues, so far as text is clearly written/read within a particular genre, it can be seen to rest upon a more or less specific set of social relations. It also means that ‘textual relations’—that is, formal techniques, reading strategies and so on—are not held separate from ‘non-textual relations’—such as methods of cultural production and modes of distribution—and that the latter can be seen to help construct ‘literary value.’ (102) The implication is that an appropriation of legitimised speaking positions isn’t done purely by overthrowing or contesting an established system of ‘quality’ but by developing a unique relationship between author, genre, and readership. Textual and non-textual practices blur together to create literary environments and cultural space. The term “publishing” is at the heart of these relationships, describing the literacies required to interpret particular voices and forms of communication. Yet, as Lury writes, literacy habits can vary. Participation in dialogue-driven, user-generated mediums is utterly different from conventional, gatekeeper-driven ones, yet the two can easily co-exist. For instance, reading last year’s Man Booker prize-winner doesn’t stop one from reading, or even writing, blogs. One can enact numerous literacy practices, move between discourses and inhabit varied relationships between genre, reader, and writer. However, with the rise of Web 2.0 a whole range of literacies that used to be defined as “private sphere” or “everyday literacies,” everything from personal conversations and correspondence to book clubs and fanzines, have become far, far more public. In the past these dialogue-based channels of communication have never been in a position where they could be defined as “publishing.” Web 2.0 changes that, moving previously private sphere communication into online public space in a very obvious way. Keen dismisses this shift as a wall of white noise, but Greenwald does something equally interesting. To a large extent, his positive treatment of Web 2.0’s “affected, stilted and forced” user-generated content is validated by his focus on a “Youth” subculture, namely Emo. Indeed, he heavily links the impact of youthful subcultural practices with the internet, writing that Teenage life has always been about self-creation, and its inflated emotions and high stakes have always existed in a grossly accelerated bubble of hypertime. The internet is the most teenage of media because it too exists in this hypertime of limitless limited moments and constant reinvention. If emo is the soundtrack to hypertime, then the web is its greatest vehicle, the secret tunnel out of the locked bedroom and dead-eyed judgmental scenes of youth. (277) In this light, we accept the voices of his Emo subjects because, underneath their low-quality writing, they produce a “sweet vulnerability” and a “dialogue,” which provides them with a “secret tunnel” out of the loneliness of their bedrooms or unsupportive geographical communities. It’s a theme that hints at the degree to which discussions of Web 2.0 are often heavily connected to arguments about generationalism, framed by the field of youth studies and accordingly end up being mined for what Tara Brabazon calls “spectacular youth subcultures” (23). We see some core examples of this in some of the quasi-academic writing on the subject of “Youth.” For example, in his 2005 book XYZ: The New Rules of Generational Warfare, Michael Grose declares Generation Y as “post-literate”: Like their baby boomer parents and generation X before them, generation Ys get their information from a range of sources that include the written and spoken word. Magazines and books are in, but visual communication is more important for this cohort than their parents. They live in a globalised, visual world where images rather than words are universal communication media. The Internet has heightened the use of symbols as a direct communicator. (95) Given the Internet is overwhelmingly a textual medium, it’s hard to tell exactly what Grose’s point is other than to express his confusion over new literacy practices. In a similar vein and in a similar style, Rebecca Huntley writes in her book The World According to Y, In the Y world, a mobile phone is not merely a phone. It is, as described by demographer Bernard Salt, “a personal accessory, a personal communications device and a personal entertainment centre.” It’s a device for work and play, flirtation and sex, friendship and family. For Yers, their phone symbolizes freedom and flexibility. More than that, your mobile phone symbolizes you. (16) Like Keen, Grose and Huntley are trying to understand a shift in publishing and media that has produced new literacy practices. Unlike Keen, Grose and Huntley pin the change on young people and, like Greenwald, they turn a series of new literacy practices into something akin to what Dick Hebdige called “conspicuous consumption” (103). It’s a term he linked to his definition of bricolage as the production of “implicitly coherent, though explicitly bewildering, systems of connection between things which perfectly equip their users to ‘think’ their own world” (103). Thus, young people are differentiated from the rest of the population by their supposedly unique consumption of “symbols” and mobile phones, into which they read their own cryptic meanings and develop their own generational language. Greenwald shows this methodology in action, with the Emo use of things like LiveJournal, Makeoutclub and other bastions of Web 2.0 joining their record collections, ubiquitous sweeping fringes and penchant for accessorised outfits as part of the conspicuous consumption inherent to understandings of youth subculture. The same theme is reflected in Michel de Certeau’s term “tactics” or, more common amongst those studying Web 2.0, Henry Jenkins’s notion of “poaching”. The idea is that people, specifically young people, appropriate particular forms of cultural literacy to redefine themselves and add a sense of value to their voices. De Certeau’s definition of tactics, as a method of resistance “which cannot count on a ‘proper’ (a spatial or institutional localization), nor thus on a borderline distinguishing the other as a visible totality” (489), is a prime example of how Web 2.0 is being understood. Young people, Emo or not, engage in a consumption of the Internet, poaching the tools of production to redefine the value of their voices in a style completely acceptable to the neo-Marxist, Birmingham school understanding of youth and subculture as a combination producing a sense of resistance. It’s a narrative highly compatible within the fields of cultural and media studies, which, despite major shifts brought about by people like Ken Gelder, Sarah Thornton, Keith Kahn-Harris and the aforementioned Tara Brabazon, still look heavily for patterns of politicised consumption. The problem, as I think Keen inadvertently suggests, is that the Internet isn’t just about young people and their habits as consumers. It’s about what the word “publishing” actually means and how we think about the interaction among writers, readers, and the avenues through which they interact. The idea that we can pass off the redefinition of literacy practices brought about by Web 2.0 as a subcultural youth phenomena is an easy way of bypassing wider cultural shifts onto a token demographic. It presents Web 2.0 as an issue of “Youth” resisting the hegemony of traditional gatekeepers, which is effectively what Greenwald does. Yet such an approach has a very short shelf life. It’s a little like claiming the telephone or the television set were “youth genres.” The uptake of new technologies will inadvertently impact differently on those who grew up with them as compared to those who grew up without them. Yet ultimately changes in literacy habits are much larger than a generationalist framework can really express, particularly given the first generation of “digital natives” are now in their thirties. There’s a lot of things wrong with Andrew Keen’s book but one thing he does do well is ground the debate about Web 2.0 back to issues of legitimate speaking positions and publishing. That said, he also significantly simplifies those issues when he claims the problem is purely about the decline of traditional gatekeeper models. Responding to Keen’s criticism of him, Creative Commons founder Lawrence Lessig writes, I think it is a great thing when amateurs create, even if the thing they create is not as great as what the professional creates. I want my kids to write. But that doesn’t mean that I’ll stop reading Hemingway and read only what they write. What Keen misses is the value to a culture that comes from developing the capacity to create—independent of the quality created. That doesn’t mean we should not criticize works created badly (such as, for example, Keen’s book…). But it does mean you’re missing the point if you simply compare the average blog to the NY times (Lessig). What Lessig expresses here is the different, but not mutually exclusive, literacy practices involved in the word “publishing.” Publishing a blog is very different to publishing a newspaper and the way readers react to both will change as they move in and out the differing discursive spaces each occupies. In a recent collaborative paper by Sue Thomas, Chris Joseph, Jess Laccetti, Bruce Mason, Simon Mills, Simon Perril, and Kate Pullinger, they describe this capacity to move across different reading and writing styles as “transliteracy.” They define the term as “the ability to read, write and interact across a range of platforms, tools and media from signing and orality through handwriting, print, TV, radio and film, to digital social networks” (Thomas et al.). It’s a term that perfectly describes the capacity to move fluidly across discursive environments. Here we return to Greenwald’s use of a framework of youth and subculture. While I have criticised the Birminghamesque fixation on a homogeneous “Youth” demographic enacting resistance through conspicuous consumption, there is good reason to use existing subculture studies methodology as a means of understanding how transliteracies play out in everyday life. David Chaney remarks, the idea of subculture is redundant because the type of investment that the notion of subculture labelled is becoming more general, and therefore the varieties of modes of symbolization and involvement are more common in everyday life. (37) I think the increasing commonality of subcultural practices in everyday life actually makes the idea more relevant, not less. It does, however, make it much harder to pin things on “spectacular youth subcultures.” Yet the focus on “everyday life” is important here, shifting our understanding of “subculture” to the types of literacies played out within localised, personal networks and experiences. As de Certeau has argued, the practice of everyday life is an issue of “a way of thinking invested in a way of acting, an art of combination which cannot be dissociated from an art of using” (Certeau 486). This is as true for our literacy practices as anything else. Whether we choose to label those practices subcultural or not, our ability to interpret, take part in and react to different communicative forums is clearly fundamental to our understanding of the world around us, regardless of our age. Sarah Thornton suggests a useful alternate definition of subculture when she talks about subcultural capital: Subcultural capital is the linchpin of an alternative hierarchy in which the aces of age, gender, sexuality and race are all employed in order to keep the determinations of class, income and occupation at bay (105). This is an understanding that avoids easy narratives of young people and their consumption of Web 2.0 by recognising the complexity with which people’s literacy habits, in the cultural sense, connect to their active participation in the production of meaning. Subcultural capital implies that the framework through which individuals read, interpret, and shift between discursive environments, personalising and building links across the strata of cultural production, is acted out at the local and personal level, rather than purely through the relationship between a producing gatekeeper and a passive, consuming readership. If we recognise the ability for readers to connect multiple mediums, to shift between reading and writing practices, and to seamlessly interpret and digest markedly different assumptions about legitimate speaking voices across genres, our understanding of what it means to “publish” ceases to be an issue of generationalism or conventional mediums being washed away by the digital era. The issue we see in both Keen and Greenwald is an attempt to digest the way Web 2.0 has forced the concept of “publishing” to take on a multiplicity of meanings, played out by individual readers, and imbued with their own unique and interwoven textual and cultural literacy habits. It’s not only Emos who publish livejournals, and it’s incredibly naive to assume gatekeepers have ever really held a monopoly on all aspects of cultural production. What the rise of Web 2.0 has done is simply to bring everyday, private sphere dialogue driven literacies into the public sphere in a very obvious way. The kind of discourses once passed off as resistant youth subcultures are now being shown as common place. Keen is right to suggest that this will continue to impact, sometimes negatively, on traditional gatekeepers. Yet the change is inevitable. As our reading and writing practices alter around new genres, our understandings of what constitutes legitimate fields of publishing will also change. References Brabazon, Tara. From Revolution to Revelation. Aldershot: Ashgate, 2005. de Certeau, Michel. “Practice of Every Day Life.” Cultural Theory and Popular Culture. Ed. John Story. London: Prentice Hall, 1998. 483–94. Chaney, David. “Fragmented Culture and Subcultures.” After Subculture. Ed. Andy Bennett and Keith Kahn-Harris. Houndsmill: Palgrave McMillian, 2004. 36–48. Greenwald, Andy. Nothing Feels Good: Punk Rock, Teenagers and Emo. New York: St Martin’s Griffin, 2003. Grose, Michael. XYZ: The New Rules of Generational Warfare. Sydney: Random House, 2005. Hebdige, Dick. Subculture: The Meaning of Style. London: Methuen and Co Ltd, 1979. Huntley, Rebecca. The World According to Y. Crows Nest: Allen and Unwin, 2006. Keen, Andrew. The Cult of the Amateur. London: Nicholas Brealey Publishing, 2007. Lessig, Lawrence. “Keen’s ‘The Cult of the Amateur’: BRILLIANT!” Lessig May 31, 2007. Aug. 19 2008 ‹http://www.lessig.org/blog/2007/05/keens_the_cult_of_the_amateur.html>. Lury, Celia. “Reading the Self: Autobiography, Gender and the Institution of the Literary.” Off-Centre: Feminism and Cultural Studies. Ed. Sarah. Franklin, Celia Lury, and Jackie Stacey. Hammersmith: HarperCollinsAcademic, 1991. 97–108. Thomas, Sue, Chris Joseph, Jess Laccetti, Bruce Mason, Simon Mills, Simon Perril, and Kate Pullinger. “Transliteracy: Crossing Divides.” First Monday 12.12. (2007). Apr. 1 2008 ‹http://www.uic.edu/htbin/cgiwrap/bin/ojs/index.php/fm/article/view/2060/1908>. Thornton, Sarah. Club Cultures: Music, Media and Subcultural Capital. Oxford: Polity Press, 1995. Woolf, Virginia. A Room of One’s Own. Frogmore: Triad/Panther Press, 1977.

'He did what the cipher could not, he rescued himself.' -- Alfred Bester, The Stars My Destination (23) On many levels, the new Nine Inch Nails album The Fragile is a gritty meditation about different types of End: the eternal relationship cycle of 'fragility, tension, ordeal, fragmentation' (adapted, with apologies to Wilhelm Reich); fin-de-siècle anxiety; post-millennium foreboding; a spectre of the alien discontinuity that heralds an on-rushing future vastly different from the one envisaged by Enlightenment Project architects. In retrospect, it's easy for this perspective to be dismissed as jargon-filled cyber-crit hyperbole. Cyber-crit has always been at its best too when it invents pre-histories and finds hidden connections between different phenomena (like the work of Greil Marcus and early Mark Dery), and not when it is closer to Chinese Water Torture, name-checking the canon's icons (the 'Deleuze/Guattari' tag-team), texts and key terms. "The organization of sound is interpreted historically, politically, socially ... . It subdues music's ambition, reins it in, restores it to its proper place, reconciles it to its naturally belated fate", comments imagineer Kodwo Eshun (4) on how cyber-crit destroys albums and the innocence of the listening experience. This is how official histories are constructed a priori and freeze-dried according to personal tastes and prior memes: sometimes the most interesting experiments are Darwinian dead-ends that fail to make the canon, or don't register on the radar. Anyone approaching The Fragile must also contend with the music industry's harsh realities. For every 10 000 Goth fans who moshed to the primal 'kill-fuck-dance' rhythms of the hit single "Closer" (heeding its siren-call to fulfil basic physiological needs and build niche-space), maybe 20 noted that the same riff returned with a darker edge in the title track to The Downward Spiral, undermining the glorification of Indulgent hedonism. "The problem with such alternative audiences," notes Disinformation Creative Director Richard Metzger, "is that they are trying to be different -- just like everyone else." According to author Don Webb, "some mature Chaos and Black Magicians reject their earlier Nine Inch Nails-inspired Goth beginnings and are extremely critical towards new adopters because they are uncomfortable with the subculture's growing popularity, which threatens to taint their meticulously constructed 'mysterious' worlds. But by doing so, they are also rejecting their symbolic imprinting and some powerful Keys to unlocking their personal history." It is also difficult to separate Nine Inch Nails from the commercialisation and colossal money-making machine that inevitably ensued on the MTV tour circuit: do we blame Michael Trent Reznor because most of his audience are unlikely to be familiar with 'first-wave' industrial bands including Cabaret Voltaire and the experiments of Genesis P. Orridge in Throbbing Gristle? Do we accuse Reznor of being a plagiarist just because he wears some of his influences -- Dr. Dre, Daft Punk, Atari Teenage Riot, Pink Floyd's The Wall (1979), Tom Waits's Bone Machine (1992), David Bowie's Low (1977) -- on his sleeve? And do we accept no-brain rock critic album reviews who quote lines like 'All the pieces didn't fit/Though I really didn't give a shit' ("Where Is Everybody?") or 'And when I suck you off/Not a drop will go to waste' ("Starfuckers Inc") as representative of his true personality? Reznor evidently has his own thoughts on this subject, but we should let the music speak for itself. The album's epic production and technical complexity turned into a post-modern studio Vision Quest, assisted by producer Alan Moulder, eleventh-hour saviour Bob Ezrin (brought in by Reznor to 'block-out' conceptual and sonic continuity), and a group of assault-technicians. The fruit of these collaborations is an album where Reznor is playing with our organism's time-binding sense, modulating strange emotions through deeply embedded tonal angularities. During his five-year absence, Trent Reznor fought diverse forms of repetitious trauma, from endogenous depression caused by endless touring to the death of his beloved grandmother (who raised him throughout childhood). An end signals a new beginning, a spiral is an open-ended and ever-shifting structure, and so Reznor sought to re-discover the Elder Gods within, a shamanic approach to renewal and secular salvation utilised most effectively by music PR luminary and scientist Howard Bloom. Concerned with healing the human animal through Ordeals that hard-wire the physiological baselines of Love, Hate and Fear, Reznor also focusses on what happens when 'meaning-making' collapses and hope for the future cannot easily be found. He accurately captures the confusion that such dissolution of meaning and decline of social institutions brings to the world -- Francis Fukuyama calls this bifurcation 'The Great Disruption'. For a generation who experienced their late childhood and early adolescence in Reagan's America, Reznor and his influences (Marilyn Manson and Filter) capture the Dark Side of recent history, unleashed at Altamont and mutating into the Apocalyptic style of American politics (evident in the 'Star Wars'/SDI fascination). The personal 'psychotic core' that was crystallised by the collapse of the nuclear family unit and supportive social institutions has returned to haunt us with dystopian fantasies that are played out across Internet streaming media and visceral MTV film-clips. That such cathartic releases are useful -- and even necessary (to those whose lives have been formed by socio-economic 'life conditions') is a point that escapes critics like Roger Scruton, some Christian Evangelists and the New Right. The 'escapist' quality of early 1980s 'Rapture' and 'Cosmocide' (Hal Lindsey) prophecies has yielded strange fruit for the Children of Ezekiel, whom Reznor and Marilyn Manson are unofficial spokes-persons for. From a macro perspective, Reznor's post-human evolutionary nexus lies, like J.G. Ballard's tales, in a mythical near-future built upon past memory-shards. It is the kind of worldview that fuses organic and morphogenetic structures with industrial machines run amok, thus The Fragile is an artefact that captures the subjective contents of the different mind produced by different times. Sonic events are in-synch but out of phase. Samples subtly trigger and then scramble kinaesthetic-visceral and kinaesthetic-tactile memories, suggestive of dissociated affective states or body memories that are incapable of being retrieved (van der Kolk 294). Perhaps this is why after a Century of Identity Confusion some fans find it impossible to listen to a 102-minute album in one sitting. No wonder then that the double album is divided into 'left' and 'right' discs (a reference to split-brain research?). The real-time track-by-track interpretation below is necessarily subjective, and is intended to serve as a provisional listener's guide to the aural ur-text of 1999. The Fragile is full of encrypted tones and garbled frequencies that capture a world where the future is always bleeding into a non-recoverable past. Turbulent wave-forms fight for the listener's attention with prolonged static lulls. This does not make for comfortable or even 'nice' listening. The music's mind is a snapshot, a critical indicator, of the deep structures brewing within the Weltanschauung that could erupt at any moment. "Somewhat Damaged" opens the album's 'Left' disc with an oscillating acoustic strum that anchor's the listener's attention. Offset by pulsing beats and mallet percussion, Reznor builds up sound layers that contrast with lyrical epitaphs like 'Everything that swore it wouldn't change is different now'. Icarus iconography is invoked, but perhaps a more fitting mythopoeic symbol of the journey that lies ahead would be Nietzsche's pursuit of his Ariadne through the labyrinth of life, during which the hero is steadily consumed by his numbing psychosis. Reznor fittingly comments: 'Didn't quite/Fell Apart/Where were you?' If we consider that Reznor has been repeating the same cycle with different variations throughout all of his music to date, retro-fitting each new album into a seamless tapestry, then this track signals that he has begun to finally climb out of self-imposed exile in the Underworld. "The Day the World Went Away" has a tremendously eerie opening, with plucked mandolin effects entering at 0:40. The main slashing guitar riff was interpreted by some critics as Reznor's attempt to parody himself. For some reason, the eerie backdrop and fragmented acoustic guitar strums recalls to my mind civil defence nuclear war films. Reznor, like William S. Burroughs, has some powerful obsessions. The track builds up in intensity, with a 'Chorus of the Damned' singing 'na na nah' over apocalyptic end-times imagery. At 4:22 the track ends with an echo that loops and repeats. "The Frail" signals a shift to mournful introspectiveness with piano: a soundtrack to faded 8 mm films and dying memories. The piano builds up slowly with background echo, holds and segues into ... "The Wretched", beginning with a savage downbeat that recalls earlier material from Pretty Hate Machine. 'The Far Aways/Forget It' intones Reznor -- it's becoming clear that despite some claims to the contrary, there is redemption in this album, but it is one borne out of a relentless move forward, a strive-drive. 'You're finally free/You could be' suggest Reznor studied Existentialism during his psychotherapy visits. This song contains perhaps the ultimate post-relationship line: 'It didn't turn out the way you wanted it to, did it?' It's over, just not the way you wanted; you can always leave the partner you're with, but the ones you have already left will always stain your memories. The lines 'Back at the beginning/Sinking/Spinning' recall the claustrophobic trapped world and 'eternal Now' dislocation of Post-Traumatic Stress Disorder victims. At 3:44 a plucked cello riff, filtered, segues into a sludge buzz-saw guitar solo. At 5:18 the cello riff loops and repeats. "We're in This Together Now" uses static as percussion, highlighting the influence of electricity flows instead of traditional rock instrument configurations. At 0:34 vocals enter, at 1:15 Reznor wails 'I'm impossible', showing he is the heir to Roger Waters's self-reflective rock-star angst. 'Until the very end of me, until the very end of you' reverts the traditional marriage vow, whilst 'You're the Queen and I'm the King' quotes David Bowie's "Heroes". Unlike earlier tracks like "Reptile", this track is far more positive about relationships, which have previously resembled toxic-dyads. Reznor signals a delta surge (breaking through barriers at any cost), despite a time-line morphing between present-past-future. At 5:30 synths and piano signal a shift, at 5:49 the outgoing piano riff begins. The film-clip is filled with redemptive water imagery. The soundtrack gradually gets more murky and at 7:05 a subterranean note signals closure. "The Fragile" is even more hopeful and life-affirming (some may even interpret it as devotional), but this love -- representative of the End-Times, alludes to the 'Glamour of Evil' (Nico) in the line 'Fragile/She doesn't see her beauty'. The fusion of synths and atonal guitars beginning at 2:13 summons forth film-clip imagery -- mazes, pageants, bald eagles, found sounds, cloaked figures, ruined statues, enveloping darkness. "Just like You Imagined" opens with Soundscapes worthy of Robert Fripp, doubled by piano and guitar at 0:39. Drums and muffled voices enter at 0:54 -- are we seeing a pattern to Reznor's writing here? Sonic debris guitar enters at 1:08, bringing forth intensities from white noise. This track is full of subtle joys like the 1:23-1:36 solo by David Bowie pianist Mike Garson and guitarist Adrian Belew's outgoing guitar solo at 2:43, shifting back to the underlying soundscapes at 3:07. The sounds are always on the dissipative edge of chaos. "Just like You Imagined" opens with Soundscapes worthy of Robert Fripp, doubled by piano and guitar at 0:39. Drums and muffled voices enter at 0:54 -- are we seeing a pattern to Reznor's writing here? Sonic debris guitar enters at 1:08, bringing forth intensities from white noise. This track is full of subtle joys like the 1:23-1:36 solo by David Bowie pianist Mike Garson and guitarist Adrian Belew's outgoing guitar solo at 2:43, shifting back to the underlying soundscapes at 3:07. The sounds are always on the dissipative edge of chaos. "Pilgrimage" utilises a persistent ostinato and beat, with a driving guitar overlay at 0:18. This is perhaps the most familiar track, using Reznor motifs like the doubling of the riff with acoustic guitars between 1:12-1:20, march cries, and pitch-shift effects on a 3:18 drumbeat/cymbal. Or at least I could claim it was familiar, if it were not that legendary hip-hop producer and 'edge-of-panic' tactilist Dr. Dre helped assemble the final track mix. "No, You Don't" has been interpreted as an attack on Marilyn Manson and Hole's Courntey Love, particularly the 0:47 line 'Got to keep it all on the outside/Because everything is dead on the inside' and the 2:33 final verse 'Just so you know, I did not believe you could sink so low'. The song's structure is familiar: a basic beat at 0:16, guitars building from 0:31 to sneering vocals, a 2:03 counter-riff that merges at 2:19 with vocals and ascending to the final verse and 3:26 final distortion... "La Mer" is the first major surprise, a beautiful and sweeping fusion of piano, keyboard and cello, reminiscent of Symbolist composer Debussy. At 1:07 Denise Milfort whispers, setting the stage for sometime Ministry drummer Bill Reiflin's jazz drumming at 1:22, and a funky 1:32 guitar/bass line. The pulsing synth guitar at 2:04 serves as anchoring percussion for a cinematic electronica mindscape, filtered through new layers of sonic chiaroscuro at 2:51. 3:06 phase shifting, 3:22 layer doubling, 3:37 outgoing solo, 3:50-3:54 more swirling vocal fragments, seguing into a fading cello quartet as shadows creep. David Carson's moody film-clip captures the end more ominously, depicting the beauty of drowning. This track contains the line 'Nothing can stop me now', which appears to be Reznor's personal mantra. This track rivals 'Hurt' and 'A Warm Place' from The Downward Spiral and 'Something I Can Never Have' from Pretty Hate Machine as perhaps the most emotionally revealing and delicate material that Reznor has written. "The Great Below" ends the first disc with more multi-layered textures fusing nostalgia and reverie: a twelve-second cello riff is counter-pointed by a plucked overlay, which builds to a 0:43 washed pulse effect, transformed by six second pulses between 1:04-1:19 and a further effects layer at 1:24. E-bow effects underscore lyrics like 'Currents have their say' (2:33) and 'Washes me away' (2:44), which a 3:33 sitar riff answers. These complexities are further transmuted by seemingly random events -- a 4:06 doubling of the sitar riff which 'glitches' and a 4:32 backbeat echo that drifts for four bars. While Reznor's lyrics suggest that he is unable to control subjective time-states (like The Joker in the Batman: Dark Knight series of Kali-yuga comic-books), the track constructions show that the Key to his hold over the listener is very carefully constructed songs whose spaces resemble Pythagorean mathematical formulas. Misdirecting the audience is the secret of many magicians. "The Way Out Is Through" opens the 'Right' disc with an industrial riff that builds at 0:19 to click-track and rhythm, the equivalent of a weaving spiral. Whispering 'All I've undergone/I will keep on' at 1:24, Reznor is backed at 1:38 by synths and drums coalescing into guitars, which take shape at 1:46 and turn into a torrential electrical current. The models are clearly natural morphogenetic structures. The track twists through inner storms and torments from 2:42 to 2:48, mirrored by vocal shards at 2:59 and soundscapes at 3:45, before piano fades in and out at 4:12. The title references peri-natal theories of development (particularly those of Stanislav Grof), which is the source of much of the album's imagery. "Into the Void" is not the Black Sabbath song of the same name, but a catchy track that uses the same unfolding formula (opening static, cello at 0:18, guitars at 0:31, drums and backbeat at 1:02, trademark industrial vocals and synth at 1:02, verse at 1:23), and would not appear out of place in a Survival Research Laboratories exhibition. At 3:42 Reznor plays with the edge of synth soundscapes, merging vocals at 4:02 and ending the track nicely at 4:44 alone. "Where Is Everybody?" emulates earlier structures, but relies from 2:01 on whirring effects and organic rhythms, including a flurry of eight beat pulses between 2:40-2:46 and a 3:33 spiralling guitar solo. The 4:26 guitar solo is pure Adrian Belew, and is suddenly ended by spluttering static and white noise at 5:13. "The Mark Has Been Made" signals another downshift into introspectiveness with 0:32 ghostly synth shimmers, echoed by cello at 1:04 which is the doubled at 1:55 by guitar. At 2:08 industrial riffs suddenly build up, weaving between 3:28 distorted guitars and the return of the repressed original layer at 4:16. The surprise is a mystery 32 second soundscape at the end with Reznor crooning 'I'm getting closer, all the time' like a zombie devil Elvis. "Please" highlights spacious noise at 0:48, and signals a central album motif at 1:04 with the line 'Time starts slowing down/Sink until I drown'. The psychic mood of the album shifts with the discovery of Imagination as a liberating force against oppression. The synth sound again is remarkably organic for an industrial album. "Starfuckers Inc" is the now infamous sneering attack on rock-stardom, perhaps at Marilyn Manson (at 3:08 Reznor quotes Carly Simon's 'You're So Vain'). Jungle beats and pulsing synths open the track, which features the sound-sculpting talent of Pop Will Eat Itself member Clint Mansell. Beginning at 0:26, Reznor's vocals appear to have been sampled, looped and cut up (apologies to Brion Gysin and William S. Burroughs). The lines 'I have arrived and this time you should believe the hype/I listened to everyone now I know everyone was right' is a very savage and funny exposure of Manson's constant references to Friedrich Nietzsche's Herd-mentality: the Herd needs a bogey-man to whip it into submission, and Manson comes dangerous close to fulfilling this potential, thus becoming trapped by a 'Stacked Deck' paradox. The 4:08 lyric line 'Now I belong I'm one of the Chosen Ones/Now I belong I'm one of the Beautiful Ones' highlights the problem of being Elect and becoming intertwined with institutionalised group-think. The album version ditches the closing sample of Gene Simmons screaming "Thankyou and goodnight!" to an enraptured audience on the single from KISS Alive (1975), which was appropriately over-the-top (the alternate quiet version is worth hearing also). "The danger Marilyn Manson faces", notes Don Webb (current High Priest of the Temple of Set), "is that he may end up in twenty years time on the 'Tonight Show' safely singing our favourite songs like a Goth Frank Sinatra, and will have gradually lost his antinomian power. It's much harder to maintain the enigmatic aura of an Evil villain than it is to play the clown with society". Reznor's superior musicianship and sense of irony should keep him from falling into the same trap. "Complication" juggernauts in at 0:57 with screaming vocals and a barrage of white noise at 1:56. It's clear by now that Reznor has read his psychological operations (PSYOP) manuals pertaining to blasting the hell out of his audiences' psyche by any means necessary. Computer blip noise and black light flotation tank memories. Dislocating pauses and time-bends. The aural equivalent of Klein bottles. "Complication" juggernauts in at 0:57 with screaming vocals and a barrage of white noise at 1:56. It's clear by now that Reznor has read his psychological operations (PSYOP) manuals pertaining to blasting the hell out of his audiences' psyche by any means necessary. Computer blip noise and black light flotation tank memories. Dislocating pauses and time-bends. The aural equivalent of Klein bottles. "The Big Come Down" begins with a four-second synth/static intro that is smashed apart by a hard beat at 0:05 and kaleidoscope guitars at 0:16. Critics refer to the song's lyrics in an attempt to project a narcissistic Reznor personality, but don't comment on stylistic tweaks like the AM radio influenced backing vocals at 1:02 and 1:19, or the use of guitars as a percussion layer at 1:51. A further intriguing element is the return of the fly samples at 2:38, an effect heard on previous releases and a possible post-human sub-text. The alien mythos will eventually reign over the banal and empty human. At 3:07 the synths return with static, a further overlay adds more synths at 3:45 as the track spirals to its peak, before dissipating at 3:1 in a mesh of percussion and guitars. "Underneath It All" opens with a riff that signals we have reached the album's climatic turning point, with the recurring theme of fragmenting body-memories returning at 0:23 with the line 'All I can do/I can still feel you', and being echoed by pulsing static at 0:42 as electric percussion. A 'Messiah Complex' appears at 1:34 with the line 'Crucify/After all I've died/After all I've tried/You are still inside', or at least it appears to be that on the surface. This is the kind of line that typical rock critics will quote, but a careful re-reading suggests that Reznor is pointing to the painful nature of remanifesting. Our past shapes us more than we would like to admit particularly our first relationships. "Ripe (With Decay)" is the album's final statement, a complex weaving of passages over a repetitive mesh of guitars, pulsing echoes, back-beats, soundscapes, and a powerful Mike Garson piano solo (2:26). Earlier motifs including fly samples (3:00), mournful funeral violas (3:36) and slowing time effects (4:28) recur throughout the track. Having finally reached the psychotic core, Reznor is not content to let us rest, mixing funk bass riffs (4:46), vocal snatches (5:23) and oscillating guitars (5:39) that drag the listener forever onwards towards the edge of the abyss (5:58). The final sequence begins at 6:22, loses fidelity at 6:28, and ends abruptly at 6:35. At millennium's end there is a common-held perception that the world is in an irreversible state of decay, and that Culture is just a wafer-thin veneer over anarchy. Music like The Fragile suggests that we are still trying to assimilate into popular culture the 'war-on-Self' worldviews unleashed by the nineteenth-century 'Masters of Suspicion' (Charles Darwin, Sigmund Freud, Friedrich Nietzsche). This 'assimilation gap' is evident in industrial music, which in the late 1970s was struggling to capture the mood of the Industrial Revolution and Charles Dickens, so the genre is ripe for further exploration of the scarred psyche. What the self-appointed moral guardians of the Herd fail to appreciate is that as the imprint baseline rises (reflective of socio-political realities), the kind of imagery prevalent throughout The Fragile and in films like Strange Days (1995), The Matrix (1999) and eXistenZ (1999) is going to get even darker. The solution is not censorship or repression in the name of pleasing an all-saving surrogate god-figure. No, these things have to be faced and embraced somehow. Such a process can only occur if there is space within for the Sadeian aesthetic that Nine Inch Nails embodies, and not a denial of Dark Eros. "We need a second Renaissance", notes Don Webb, "a rejuvenation of Culture on a significant scale". In other words, a global culture-shift of quantum (aeon or epoch-changing) proportions. The tools required will probably not come just from the over-wordy criticism of Cyber-culture and Cultural Studies or the logical-negative feeding frenzy of most Music Journalism. They will come from a dynamic synthesis of disciplines striving toward a unity of knowledge -- what socio-biologist Edward O. Wilson has described as 'Consilience'. Liberating tools and ideas will be conveyed to a wider public audience unfamiliar with such principles through predominantly science fiction visual imagery and industrial/electronica music. The Fragile serves as an invaluable model for how such artefacts could transmit their dreams and propagate their messages. For the hyper-alert listener, it will be the first step on a new journey. But sadly for the majority, it will be just another hysterical industrial album promoted as selection of the month. References Bester, Alfred. The Stars My Destination. London: Millennium Books, 1999. Eshun, Kodwo. More Brilliant than the Sun: Adventures in Sonic Fiction. London: Quartet Books, 1998. Van der Kolk, Bessel A. "Trauma and Memory." Traumatic Stress: The Effects of Overwhelming Experience on Mind, Body, and Society. Eds. Bessel A. van der Kolk et al. New York: Guilford Press, 1996. Nine Inch Nails. Downward Spiral. Nothing/Interscope, 1994. ---. The Fragile. Nothing, 1999. ---. Pretty Hate Machine. TVT, 1989. Citation reference for this article MLA style: Alex Burns. "'This Machine Is Obsolete': A Listeners' Guide to Nine Inch Nails' The Fragile." M/C: A Journal of Media and Culture 2.8 (1999). [your date of access] <http://www.uq.edu.au/mc/9912/nine.php>. Chicago style: Alex Burns, "'This Machine Is Obsolete': A Listeners' Guide to Nine Inch Nails' The Fragile," M/C: A Journal of Media and Culture 2, no. 8 (1999), <http://www.uq.edu.au/mc/9912/nine.php> ([your date of access]). APA style: Alex Burns. (1999) 'This machine is obsolete': a listeners' guide to Nine Inch Nails' The fragile. M/C: A Journal of Media and Culture 2(8). <http://www.uq.edu.au/mc/9912/nine.php> ([your date of access]).

The old “Is the glass half empty or half full?” question does more than just illustrate a person’s proclivity for pessimism or for optimism. It alerts us to the possibility that the same real world phenomena may be interpreted in entirely different ways, with very real consequences. It is this notion that I apply to the way fat sex and thin sex are conceptualised in the larger social consciousness. While sexual, romantic and/or intimate acts between people where at least one individual is fat (Fat Sex) are deemed atypical, abnormal, fetishistic and even abusive (Saguy qtd. in Swami & Tovee 90; Schur qtd. in Prohaska 271; Gailey 119), such encounters between able-bodied individuals who are thin or of average weight (Thin Sex) are deemed normal and desirable. I argue in this article that this discrepancy in how we label and treat fat and thin sexuality is unjustified because the two domains are more similar than distinct. Given their similarity we should treat similar aspects of both domains in the same way, i.e. either as normal, or as fetishistic based on relevant criteria rather than body size. I also argue that fat prejudice and thin privilege underlie this discrepancy in modern western society. I finally conclude that this causes significant personal and social harm to both fat and thin individuals.Fat Sex – The Fetishized NormalHanne Blank, in writing of her foray into publishing body positive material exploring fat sexuality, speaks of the need for spaces that acknowledge the vitality and diversity of fat sex; not in fetishistic and pornographic portrayals of Big Beautiful Women offering themselves up as an object of desire but reflecting the desires and sexual experiences of fat people themselves (10). If there are a 100 million people in America who are obese according to BMI standards, she argues, they represent a whole array of body sizes and a lot of sexual activity, which she describes as follows:Fat people have sex. Sweet, tender, luscious sex. Sweaty, feral, sheet-ripping sex. Shivery, jiggly, gasping sex. Sentimental, slow, face-cradling sex. Even as you read these words, there are fat people out there somewhere joyously getting their freak on. Not only that, but fat people are falling in love, having hook-ups, being crushed-out, putting on sexy lingerie, being the objects of other people’s lust, flirting, primping before hot dates, melting a little as they read romantic notes from their sweeties, seducing and being seduced, and having shuddering, toe-curling orgasms that are as big as they are. It’s only natural. (15)Such normalcy and diverse expression, however, is not usually portrayed in popular media, nor even in much scholarly research. Apart from body positive spaces carved out by the fat acceptance movement online and the research of fat studies scholars, which, contextualises fat sexuality as healthy and exciting, in “the majority of scholarship on this topic, fat women’s sexual behaviors are never the result of women’s agency, are always the result of their objectification, and are never healthy” (Prohaska 271).This interpretation of fat sexuality, the assumptions associated with it and the reinforcement of these attitudes have much to do with the pervasiveness of fat prejudice in society today. One study estimates that the prevalence of weight based discrimination in the US increased by 66% between 1996 and 2006 (Andreyeva, Puhl and Brownell) and is now comparable to gender and race based discrimination (Puhl, Andreyeva and Brownell). This is not an isolated trend. An anthropological study analysing the globalisation of notions of fat being unhealthy and a marker of personal and social failing suggests that we have on our hands a rapidly homogenising global stigma associated with fat (Brewis, Wutich and Rodriguez-Soto), a climate of discrimination leading many fat people to what Goffman describes as a spoiled identity (3).Negative stereotypes affecting fat sexuality are established and perpetuated through a process of discursive constraint (Cordell and Ronai 30-31). “’No man will ever love you,’ Weinstein’s grandmother informs her (Weinstein, prologue), simultaneously offering her a negative category to define herself by and trying to coerce her into losing weight – literally constraining the discourse that Weinstein may apply to herself.Discursive constraint is created not only by individuals reinforcing cultural mores but also by overt and covert messages embedded in social consciousness: “fat people are unattractive”, “fat is ugly”, “fat people are asexual”, “fat sex is a fetish”, “no normal person can be attracted to a fat person”. Portrayals of fat individuals in mainstream media consolidate these beliefs.One of the most loved fat characters of 1990s, Fat Monica from the sitcom Friends is gluttonous, ungainly (rolling around in a bean bag, jolting the sofa as she sits), undesirable (Chandler says to Ross, “I just don’t want to be stuck here all night with your fat sister!”), and desperate for sex, affection and approval from the opposite sex: “the comedic potential of Fat Monica is premised on an understanding that her body is deviant or outside the norm” (Gullage 181).In Shallow Hal, a film in which a shallow guy falls in love with the inner beauty of a fat girl, Hal (Jack Black) is shown to be attracted to Rosemary (Gwyneth Paltrow) only after he can no longer see her real fat body and her “inner beauty” is represented by a thin white blond girl. All the while, the movie draws laughs from the audience at the fat jokes and gags made at the expense of Paltrow’s character.Ashley Madison, a website for married people looking to have an affair, used the image of a scantily clad fat model in an advertisement with the tagline “Did your wife scare you last night?”, implying that infidelity is justified if you’re not attracted to your partner, and fatness precludes attraction. And a columnist from popular magazine Marie Claire wrote about Mike and Molly, a sitcom about two fat people in a relationship:Yes, I think I'd be grossed out if I had to watch two characters with rolls and rolls of fat kissing each other ... because I'd be grossed out if I had to watch them doing anything. (Kelly)It is the prevalence of these beliefs that I call the fetishisation of fat sexuality. When fat bodies are created as asexual and undesirable, it gives rise to the rhetoric that to be sexually attracted to a fat body is unnatural, therefore making any person who is attracted to a fat body a fetishist and the fat person themselves an object of fetish.The internalisation of these beliefs is not only something that actively harms the self-esteem, sexual agency & health and happiness of fat individuals (Satinsky et al.), but also those who are attracted to them. Those who internalise these beliefs about themselves may be unable to view themselves as sexual and engage with their own bodies in a pleasurable manner, or to view themselves as attractive, perhaps discounting any assertions to the contrary. In a study designed to investigate the relationship between body image and sexual health in women of size, one participant revealed:I’ve had my issues with T as far as um, believing that T is attracted to me…because of my weight, my size and the way I look. (Satinsky et al. 717)Another participant speaks of her experience masturbating and her discomfort at touching her own flesh, leading her to use a vibrator and not her hands:Like, I don’t, I don’t look down. I look at the ceiling and I try to – it’s almost like I’m trying to imagine that I was thinner. Like, imagine that my stomach was flatter or something like that, which sounds bizarre, but I guess that’s what I’m trying to do. (Satinsky et al. 719)Others stay in bad marriages because they believe they wouldn’t find anyone else (Joanisse and Synnott 55) or tolerate abuse because of their low self-esteem (Hester qtd. in Prohaska 271).Similarly, men who internalise these attitudes about fat find it easier to dehumanise and objectify fat women, believe that they’d be desperate for sex and hence an easy target for a sexual conquest, and are less deserving of consideration (Prohaska and Gailey 19).On the other hand, many men who find fat women attractive (Fat Admirers or FA’s) remain closeted because their desire is stigmatised. Many do not make their preference known to their peer group and families, nor do they publicly acknowledge the woman they are intimate with. Research suggests that FA’s draw the same amount of stigma for being with fat women and finding them attractive, as they would for themselves being fat (Goode qtd. in Prohaska and Gailey).I do not argue here that all fat individuals have spoiled identities or that all expressions of fat sexuality operate from a place of stigma and shame, but that fat sexuality exists within a wider social fabric of fat phobia, discrimination and stigmatisation. Fulfilling sexual experience must therefore be navigated within this framework. As noted, the fat acceptance movement, body positive spaces online, and fat studies scholarship help to normalise fat sexuality and function as tools for resisting stigma and fetishisation.Resisting Stigma: Creating Counter NarrativesGailey, in interviews with 36 fat-identified women, found that though 34 of them (94%) had ‘experienced a life of ridicule, body shame and numerous attempts to lose weight’ which had an adverse effect on their relationships and sex life, 26 of them reported a positive change after having ‘embodied the size acceptance ideology’ (Gailey 118).Recently, Kristin Chirico, employee of Buzzfeed, released first an article and then a video titled My Boyfriend Loves Fat Women about her relationship with her boyfriend who loves fat women, her own discomfort with her fatness and her journey in embracing size acceptance ideologies: I will let him enjoy the thing he loves without tearing it down. But more importantly, I will work to earn love from me, who is the person who will always play the hardest to get. I will flirt as hard as I can, and I will win myself back.Books such as Wann’s Fat!So?, Blank’s Big Big Love: A Sex and Relationships Guide for People of Size (and Those Who Love Them), Chastain’s Fat: The Owner’s Manual and her blog Dances with Fat, Tovar’s Hot and Heavy: Fierce Fat Girls on Life, Love and Fashion, as well as Substantia Jones’s fat photography project called The Adipositivity Project are some examples of fat activism, size acceptance and body positive spaces and resources. The description on Jones’s site reads:The Adipositivity Project aims to promote the acceptance of benign human size variation and encourage discussion of body politics, not by listing the merits of big people, or detailing examples of excellence (these things are easily seen all around us), but rather through a visual display of fat physicality. The sort that's normally unseen. When fat individuals create personal narratives to resist stigmatisation of fat sexuality they confront the conundrum of drawing the line between sexual empowerment and glorifying fat fetishism. To see one’s own and other fat bodies as sexual, normal and worthy of pleasure is one way to subvert this fetishism. One would also take seriously any sexual advances, seeing oneself as desirable. The line between normal expression of fat sexuality and the wide spread belief that fat sex is fetishistic is so blurred however, that it becomes difficult to differentiate between them, so it is common to ask if one is being sexual or being an object of fetish. There is also the tension between the heady sense of power in being a sexual agent, and the desire to be wanted for more than just being a fat body.Modern burlesque stage is one arena where fat bodies are being recreated as sexy and desirable, offering a unique resource to ‘fat performers and audience members who want to experience their bodies in new and affirming ways’. Because burlesque is an erotic dance form, fat women on the burlesque stage are marked as ‘sexual, without question or challenge’. The burlesque stage has a great capacity to be a space for transforming sexual identity and driving changes in audience attitudes, creating a powerful social environment that is contrary to mainstream conditions in society (Asbill 300).The founder and creative director of “Big Burlesque” and “Fat-Bottom Revue” the world’s first all-fat burlesque troupe, however, notes that when she started Big Burlesque there were a couple of “bigger” performers on the neo-burlesque circuit, but they did not specifically advocate fat liberation. ‘Fat dance is rare enough; fat exotic/erotic dance is pretty much unheard of outside of “fetish” acts that alienate rather than normalise fat bodies’ (McAllister 305).In another instance, Laura writes that to most men her weight is a problem or a fetish, constraining the potential in relationships. Speaking of BBW (Big Beautiful Women) and BHM (Big Handsome Men) websites that cater to Fat Admirers she writes:As I’ve scrolled through these sites, I’ve felt vindicated at seeing women my size as luscious pinups. But, after a while, I feel reduced to something less than a person: just a gartered thigh and the breast-flesh offered up in a corset. I want to be lusted after. I want to be wanted. But, more than this, I want to love, and be loved. I want everything that love confers: being touched, being valued and being seen.That sexual attraction might rely wholly or partly on physical attributes, however, is hardly unfamiliar, and is an increasing phenomenon in the wider culture and popular media. Of course, what counts there is being thin and maintaining the thin state!Thin Sex: The Normalised FetishUnlike the fat body, the thin body is created as beautiful, sexually attractive, successful and overwhelmingly the norm (van Amsterdam). Ours is a culture fixated on physical beauty and sex, both of which are situated in thin bodies. Sexiness is a social currency that buys popularity, social success, and increasingly wealth itself (Levy). Like fat sex, thin sex operates on the stage set by the wider cultural ideals of beauty and attractiveness and that of the burden of thin privilege. Where stigma situates fat sexuality to abnormality and fetish, thin sexuality has to deal with the pressures of conforming to and maintaining the thin state (vam Amsterdam).Thin individuals also deal with the sexualisation of their bodies, confronting the separation of their personhood from their sexuality, in a sexual objectification of women that has long been identified as harmful. Ramsey and Hoyt explore how being objectified in heterosexual relationships might be related to coercion within those relationships. Their evidence shows that women are routinely objectified, and that this objectification becomes part of the schema of how men relate to women. Such a schema results in a fracturing of women into body parts dissociated from their personhood , making it easier to engage in violence with, and feel less empathy for female partners (in cases of rape or sexual assault). (Ramsey and Hoyt) What is interesting here is the fact that though aspects of thin sexuality are recognised as fetishistic (objectification of women), thin sex is still considered normal.Thin Sex, Fat Sex and 50 Shades of OverlapThe normalisation of sexual objectification -- society for the most part being habituated to the fetishistic aspects of thin sex, can be contrasted with attitudes towards comparable aspects of fat sex. In particular, Feederism, is generally viewed within scholarly discourse (and public attitudes) as ‘a consensual activity, a fetish, a stigmatised behaviour, and abuse’ (Terry & Vassey, Hester, Bestard, Murray as qtd. in Prohaska 281). Prohaska argues that Feederism and Diet Culture are broadly similar phenomena that elicit tellingly opposing judgements. She reports that the culture of feederism (as analysed on online forums) is a mostly consensual activity, where the community vocally dissuades non-consensual activities and any methods that may cause bodily harm (268). It is mostly a community of people who discuss measures of gradual weight gain and support and encourage each other in those goals. This, she argues, is very similar in tone to what appears on weight loss websites and forums (269). She contends, however that despite these parallels ‘the same scrutiny is not given to those who are attempting to lose weight as is placed upon those who do not diet or who try to gain weight’ (269).She notes that whereas in judging feederism emphasis is on fringe behaviours, in evaluating diet culture the focus is on behaviours deemed normal and healthy while only disorders like anorexia, bulimia, and pill using are judged fringe behaviours. This disparity, she claims, is rooted in fat phobia and prejudice (270).In comparing the dating sections of feederism websites with mainstream dating sites she notes that here too the nature of ads is similar, with the only difference being that in mainstream sites the body size preference is assumed. People seeking relationships on both kinds of sites look for partners who are ‘caring, intelligent and funny’ and consider ‘mutual respect’ as key (270).This is similar to what was revealed in an article by Camille Dodero, who interviewed a number of men who identify as fat admirers and delved into the myths and realities of fat admiration. The article covers stories of stigma that FA’s have faced and continue to face because of their sexual preference, and also of internalised self-hatred that makes it difficult for fat women to take their advances seriously. The men also create BBW/BHM dating websites as more than a fetish club. They experience these online spaces as safe spaces where they can openly meet people they would be interested in just as one would on a normal/mainstream dating site. Even if most women fit the type that they are attracted to in such spaces, it does not mean that they would be attracted to all of those women, just as on match.com one would look over prospective candidates for dating and that process would include the way they look and everything else about that person.Attempting to clear up the misconception that loving fat women is a fetish, one of the interviewees says,“Steve, over there, has a type,” gesturing wanly at a stranger in a hockey jersey probably not named Steve. “I have a type, too. Mine’s just bigger. He may like skinny blondes with bangs and long legs. I like pear shapes with brown hair and green eyes. I have a type—it just happens to be fat.” Besides, people aren’t fetish objects, they’re people. “It’s not like having a thing for leather.” (Dodero 3)ConclusionAnalysis of the domains of thin and fat sex shows that both have people engaging in sexual activity and romantic and intimate relationships with each other. Both have a majority of individuals who enjoy consensual, fulfilling sex and relationships, however these practices and desires are celebrated in one domain and stigmatised in the other. Both domains also have a portion of the whole that objectifies relationship partners with immense potential for harm, whether this involves sexualisation and objectification and its related harms in thin sex, objectification of fat bodies in some BBW and BHM circles, and the fringes of feederism communities, or non-body size specific fetish acts that individuals from both domains engage in. Qualitatively, since both domains significantly overlap, it is difficult to find the justification for the fetishisation of one and the normativity of the other. It seems plausible that this can be accounted for by the privilege associated with thin bodies and the prejudice against fat.Our failure to acknowledge such fetishisation of normal fat sex and normalisation of the fetishistic aspects of thin sex creates huge potential for harm for both groups, for it not only causes the fragmentation of effort when it comes to addressing these issues but also allows for the rich vitality and diversity of “normal” fat sex to wallow in obscurity and stigma.References Andreyeva, Tatiana, Rebecca M. Puhl, and Kelly D. Brownell. "Changes in Perceived Weight Discrimination among Americans, 1995–1996 through 2004–2006." Obesity 16 (2008): 1129-1134.Asbill, D. Lacy. "'I’m Allowed to Be a Sexual Being': The Distinctive Social Conditions of the Fat Burlesque Stage." The Fat Studies Reader, eds. Sondra Solovay and Esther Rothblum. New York: New York UP, 2009. 299.Blank, Hanne. Big Big Love, Revised, A Sex and Relationship Guide for People of Size (and Those Who Love Them). New York: Celestial Arts, 2011.Bogart, Laura. Salon 4 Aug. 2014.Brewis, A.A., A. Wutich and I. Rodriguez-Soto. "Body Norms and Fat Stigma in Global Perspective." Current Anthropology 52 (2011): 269-276.Chirico, Kristin. My Boyfriend Loves Fat Women. 25 Feb. 2015.Cordell, Gina, and Carol Rambo Ronai. "Identity Management among Overweight Women: Narrative Resistance to Stigma." Interpreting Weight: The Social Management of Fatness and Thinness, eds. Jeffery Sobal and Donna Maurer. Transaction Publishers, 1999. 29-48. Dodero, Camille. Guys Who Like Fat Chicks. 4 May 2011.Prohaska, Ariane, and Jeannine A. Gailey. "Achieving Masculinity through Sexual Predation: The Case of Hogging." Journal of Gender Studies 19.1 (2010): 13-25.Gailey, Jeannine A. “Fat Shame to Fat Pride: Fat Women’s Sexual and Dating Experiences.” Fat Studies: An Interdisciplinary Journal of Body Weight and Society 1.1 (2012). Goffman, Erving. Stigma: Notes on the Management of Spoiled Identity. Englewood Cliffs, N.J: Prentice-Hall, 1963.Gullage, Amy. "Fat Monica, Fat Suits and Friends." Feminist Media Studies 14.2 (2012): 178-89. Jacqueline. "I'm The 'Scary' Model in That Awful Ashley Madison Ad." 11 July 2011. Online. 24 May 2015.Jones, Substantia. The Adipositivity Project. n.d. Kelly, M. "Should 'Fatties' Get a Room? (Even on TV?)" 2010.Levy, Ariel. "Raunch Culture." Female Chauvinist Pigs: Women and the Rise of Raunch Culture. New York: Free Press, 2005. 7-45.McAllister, Heather. "Embodying Fat Liberation." The Fat Studies Reader, eds. Sondra Solovay and Esther Rothblum. New York: New York UP, 2009. 305.Prohaska, Ariane. “Help Me Get Fat! Feederism as Communal Deviance on the Internet.” Deviant Behaviour 35.4 (2014). Puhl, Rebecca M., Tatiana Andreyeva, and Kelly Brownell. "Perceptions of Weight Discrimination: Prevalence and Comparison to Race and Gender Discrimination in America." International Journal of Obesity 32 (2008): 992-1000.Ramsey, Laura R., and Tiffany Hoyt. "The Object of Desire: How Being Objectified Creates Sexual Pressure for Women in Heterosexual Relationships." Psychology of Women Quarterly (2014): 1-20.Satinsky, Sonya, et al. "'Fat Girl Complex': A Preliminary Investigation of Sexual Health and Body Image in Women of Size." Culture, Health and Sexuality: An International Journal for Research, Intervention and Care 15.6 (2013): 710-25.Swami, Viren, and Martin J. Tovee. “Big Beautiful Women: The Body Size Preferences of Male Fat Admirers.” The Journal of Sex Research 46.1 (2009): 89-86.Joanisse, Leanne, and Anthony Synnott. "Fighting Back: Reactions and Resistance to the Stigma of Obesity." Interpreting Weight: The Social Management of Fatness and Thinness, eds. Jeffery Sobal and Donna Maurer. New York: First Transaction Printing, 2013. 49-73.Van Amsterdam, Noortje. "Big Fat Inequalities, Thin Privilege: An Intersectional Perspective on 'Body Size'." European Journal of Women's Studies 20.2 (2013): 155-69.Weinstein, Rebecca Jane. “Fat Sex: The Naked Truth”. EBook, 2012.

Our thesis is that the city’s ambience is now an unstable dialectic in which we are watchers and watched, mirrored and refracted in a landscape of iPhone auteurs, eTags, CCTV and sousveillance. Embrace ambience! Invoking Benjamin’s spirit, this article does not seek to limit understanding through restriction to a particular theme or theoretical construct (Buck-Morss 253). Instead, it offers snapshots of interactions at the dawn of the postmodern city. That bricolage also engages how people appropriate, manipulate, disrupt and divert urban spaces and strategies of power in their everyday life. Ambient information can both liberate and disenfranchise the individual. This article asks whether our era’s dialectics result in a new personhood or merely restate the traditional spectacle of ‘bright lights, big city’. Does the virtualized city result in ambient anomie and satiation or in surprise, autonomy and serendipity? (Gumpert 36) Since the steam age, ambience has been characterised in terms of urban sound, particularly the alienation attributable to the individual’s experience as a passive receptor of a cacophony of sounds – now soft, now loud, random and recurrent–from the hubbub of crowds, the crash and grind of traffic, the noise of industrial processes and domestic activity, factory whistles, fire alarms, radio, television and gramophones (Merchant 111; Thompson 6). In the age of the internet, personal devices such as digital cameras and iPhones, and urban informatics such as CCTV networks and e-Tags, ambience is interactivity, monitoring and signalling across multiple media, rather than just sound. It is an interactivity in which watchers observe the watched observing them and the watched reshape the fabric of virtualized cities merely by traversing urban precincts (Hillier 295; De Certeau 163). It is also about pervasive although unevenly distributed monitoring of individuals, using sensors that are remote to the individual (for example cameras or tag-readers mounted above highways) or are borne by the individual (for example mobile phones or badges that systematically report the location to a parent, employer or sex offender register) (Holmes 176; Savitch 130). That monitoring reflects what Doel and Clark characterized as a pervasive sense of ambient fear in the postmodern city, albeit fear that like much contemporary anxiety is misplaced–you are more at risk from intimates than from strangers, from car accidents than terrorists or stalkers–and that is ahistorical (Doel 13; Scheingold 33). Finally, it is about cooption, with individuals signalling their identity through ambient advertising: wearing tshirts, sweatshirts, caps and other apparel that display iconic faces such as Obama and Monroe or that embody corporate imagery such as the Nike ‘Swoosh’, Coca-Cola ‘Ribbon’, Linux Penguin and Hello Kitty feline (Sayre 82; Maynard 97). In the postmodern global village much advertising is ambient, rather than merely delivered to a device or fixed on a billboard. Australian cities are now seas of information, phantasmagoric environments in which the ambient noise encountered by residents and visitors comprises corporate signage, intelligent traffic signs, displays at public transport nodes, shop-window video screens displaying us watching them, and a plethora of personal devices showing everything from the weather to snaps of people in the street or neighborhood satellite maps. They are environments through which people traverse both as persons and abstractions, virtual presences on volatile digital maps and in online social networks. Spectacle, Anomie or Personhood The spectacular city of modernity is a meme of communication, cultural and urban development theory. It is spectacular in the sense that of large, artificial, even sublime. It is also spectacular because it is built around the gaze, whether the vistas of Hausmann’s boulevards, the towers of Manhattan and Chicago, the shopfront ‘sea of light’ and advertising pillars noted by visitors to Weimar Berlin or the neon ‘neo-baroque’ of Las Vegas (Schivelbusch 114; Fritzsche 164; Ndalianis 535). In the year 2010 it aspires to 2020 vision, a panoptic and panspectric gaze on the part of governors and governed alike (Kullenberg 38). In contrast to the timelessness of Heidegger’s hut and the ‘fixity’ of rural backwaters, spectacular cities are volatile domains where all that is solid continues to melt into air with the aid of jackhammers and the latest ‘new media’ potentially result in a hypereality that make it difficult to determine what is real and what is not (Wark 22; Berman 19). The spectacular city embodies a dialectic. It is anomic because it induces an alienation in the spectator, a fatigue attributable to media satiation and to a sense of being a mere cog in a wheel, a disempowered and readily-replaceable entity that is denied personhood–recognition as an autonomous individual–through subjection to a Fordist and post-Fordist industrial discipline or the more insidious imprisonment of being ‘a housewife’, one ant in a very large ant hill (Dyer-Witheford 58). People, however, are not automatons: they experience media, modernity and urbanism in different ways. The same attributes that erode the selfhood of some people enhance the autonomy and personhood of others. The spectacular city, now a matrix of digits, information flows and opportunities, is a realm in which people can subvert expectations and find scope for self-fulfillment, whether by wearing a hoodie that defeats CCTV or by using digital technologies to find and associate with other members of stigmatized affinity groups. One person’s anomie is another’s opportunity. Ambience and Virtualisation Eighty years after Fritz Lang’s Metropolis forecast a cyber-sociality, digital technologies are resulting in a ‘virtualisation’ of social interactions and cities. In post-modern cityscapes, the space of flows comprises an increasing number of electronic exchanges through physically disjointed places (Castells 2002). Virtualisation involves supplementation or replacement of face-to-face contact with hypersocial communication via new media, including SMS, email, blogging and Facebook. In 2010 your friends (or your boss or a bully) may always be just a few keystrokes away, irrespective of whether it is raining outside, there is a public transport strike or the car is in for repairs (Hassan 69; Baron 215). Virtualisation also involves an abstraction of bodies and physical movements, with the information that represents individual identities or vehicles traversing the virtual spaces comprised of CCTV networks (where viewers never encounter the person or crowd face to face), rail ticketing systems and road management systems (x e-Tag passed by this tag reader, y camera logged a specific vehicle onto a database using automated number-plate recognition software) (Wood 93; Lyon 253). Surveillant Cities Pervasive anxiety is a permanent and recurrent feature of urban experience. Often navigated by an urgency to control perceived disorder, both physically and through cultivated dominant theory (early twentieth century gendered discourses to push women back into the private sphere; ethno-racial closure and control in the Black Metropolis of 1940s Chicago), history is punctuated by attempts to dissolve public debate and infringe minority freedoms (Wilson 1991). In the Post-modern city unprecedented technological capacity generates a totalizing media vector whose plausible by-product is the perception of an ambient menace (Wark 3). Concurrent faith in technology as a cost-effective mechanism for public management (policing, traffic, planning, revenue generation) has resulted in emergence of the surveillant city. It is both a social and architectural fabric whose infrastructure is dotted with sensors and whose people assume that they will be monitored by private/public sector entities and directed by interactive traffic management systems – from electronic speed signs and congestion indicators through to rail schedule displays –leveraging data collected through those sensors. The fabric embodies tensions between governance (at its crudest, enforcement of law by police and their surrogates in private security services) and the soft cage of digital governmentality, with people being disciplined through knowledge that they are being watched and that the observation may be shared with others in an official or non-official shaming (Parenti 51; Staples 41). Encounters with a railway station CCTV might thus result in exhibition of the individual in court or on broadcast television, whether in nightly news or in a ‘reality tv’ crime expose built around ‘most wanted’ footage (Jermyn 109). Misbehaviour by a partner might merely result in scrutiny of mobile phone bills or web browser histories (which illicit content has the partner consumed, which parts of cyberspace has been visited), followed by a visit to the family court. It might instead result in digital viligilantism, with private offences being named and shamed on electronic walls across the global village, such as Facebook. iPhone Auteurism Activists have responded to pervasive surveillance by turning the cameras on ‘the watchers’ in an exercise of ‘sousveillance’ (Bennett 13; Huey 158). That mirroring might involve the meticulous documentation, often using the same geospatial tools deployed by public/private security agents, of the location of closed circuit television cameras and other surveillance devices. One outcome is the production of maps identifying who is watching and where that watching is taking place. As a corollary, people with anxieties about being surveilled, with a taste for street theatre or a receptiveness to a new form of urban adventure have used those maps to traverse cities via routes along which they cannot be identified by cameras, tags and other tools of the panoptic sort, or to simply adopt masks at particular locations. In 2020 can anyone aspire to be a protagonist in V for Vendetta? (iSee) Mirroring might take more visceral forms, with protestors for example increasingly making a practice of capturing images of police and private security services dealing with marches, riots and pickets. The advent of 3G mobile phones with a still/video image capability and ongoing ‘dematerialisation’ of traditional video cameras (ie progressively cheaper, lighter, more robust, less visible) means that those engaged in political action can document interaction with authority. So can passers-by. That ambient imaging, turning the public gaze on power and thereby potentially redefining the ‘public’ (given that in Australia the community has been embodied by the state and discourse has been mediated by state-sanctioned media), poses challenges for media scholars and exponents of an invigorated civil society in which we are looking together – and looking at each other – rather than bowling alone. One challenge for consumers in construing ambient media is trust. Can we believe what we see, particularly when few audiences have forensic skills and intermediaries such as commercial broadcasters may privilege immediacy (the ‘breaking news’ snippet from participants) over context and verification. Social critics such as Baudelaire and Benjamin exalt the flaneur, the free spirit who gazed on the street, a street that was as much a spectacle as the theatre and as vibrant as the circus. In 2010 the same technologies that empower citizen journalism and foster a succession of velvet revolutions feed flaneurs whose streetwalking doesn’t extend beyond a keyboard and a modem. The US and UK have thus seen emergence of gawker services, with new media entrepreneurs attempting to build sustainable businesses by encouraging fans to report the location of celebrities (and ideally provide images of those encounters) for the delectation of people who are web surfing or receiving a tweet (Burns 24). In the age of ambient cameras, where the media are everywhere and nowhere (and micro-stock photoservices challenge agencies such as Magnum), everyone can join the paparazzi. Anyone can deploy that ambient surveillance to become a stalker. The enthusiasm with which fans publish sightings of celebrities will presumably facilitate attacks on bodies rather than images. Information may want to be free but so, inconveniently, do iconoclasts and practitioners of participatory panopticism (Dodge 431; Dennis 348). Rhetoric about ‘citizen journalism’ has been co-opted by ‘old media’, with national broadcasters and commercial enterprises soliciting still images and video from non-professionals, whether for free or on a commercial basis. It is a world where ‘journalists’ are everywhere and where responsibility resides uncertainly at the editorial desk, able to reject or accept offerings from people with cameras but without the industrial discipline formerly exercised through professional training and adherence to formal codes of practice. It is thus unsurprising that South Australia’s Government, echoed by some peers, has mooted anti-gawker legislation aimed at would-be auteurs who impede emergency services by stopping their cars to take photos of bushfires, road accidents or other disasters. The flipside of that iPhone auteurism is anxiety about the public gaze, expressed through moral panics regarding street photography and sexting. Apart from a handful of exceptions (notably photography in the Sydney Opera House precinct, in the immediate vicinity of defence facilities and in some national parks), Australian law does not prohibit ‘street photography’ which includes photographs or videos of streetscapes or public places. Despite periodic assertions that it is a criminal offence to take photographs of people–particularly minors–without permission from an official, parent/guardian or individual there is no general restriction on ambient photography in public spaces. Moral panics about photographs of children (or adults) on beaches or in the street reflect an ambient anxiety in which danger is associated with strangers and strangers are everywhere (Marr 7; Bauman 93). That conceptualisation is one that would delight people who are wholly innocent of Judith Butler or Andrea Dworkin, in which the gaze (ever pervasive, ever powerful) is tantamount to a violation. The reality is more prosaic: most child sex offences involve intimates, rather than the ‘monstrous other’ with the telephoto lens or collection of nastiness on his iPod (Cossins 435; Ingebretsen 190). Recognition of that reality is important in considering moves that would egregiously restrict legitimate photography in public spaces or happy snaps made by doting relatives. An ambient image–unposed, unpremeditated, uncoerced–of an intimate may empower both authors and subjects when little is solid and memory is fleeting. The same caution might usefully be applied in considering alarms about sexting, ie creation using mobile phones (and access by phone or computer monitor) of intimate images of teenagers by teenagers. Australian governments have moved to emulate their US peers, treating such photography as a criminal offence that can be conceptualized as child pornography and addressed through permanent inclusion in sex offender registers. Lifelong stigmatisation is inappropriate in dealing with naïve or brash 12 and 16 year olds who have been exchanging intimate images without an awareness of legal frameworks or an understanding of consequences (Shafron-Perez 432). Cameras may be everywhere among the e-generation but legal knowledge, like the future, is unevenly distributed. Digital Handcuffs Generations prior to 2008 lost themselves in the streets, gaining individuality or personhood by escaping the surveillance inherent in living at home, being observed by neighbours or simply surrounded by colleagues. Streets offered anonymity and autonomy (Simmel 1903), one reason why heterodox sexuality has traditionally been negotiated in parks and other beats and on kerbs where sex workers ply their trade (Dalton 375). Recent decades have seen a privatisation of those public spaces, with urban planning and digital technologies imposing a new governmentality on hitherto ambient ‘deviance’ and on voyeuristic-exhibitionist practice such as heterosexual ‘dogging’ (Bell 387). That governmentality has been enforced through mechanisms such as replacement of traditional public toilets with ‘pods’ that are conveniently maintained by global service providers such as Veolia (the unromantic but profitable rump of former media & sewers conglomerate Vivendi) and function as billboards for advertising groups such as JC Decaux. Faces encountered in the vicinity of the twenty-first century pissoir are thus likely to be those of supermodels selling yoghurt, low interest loans or sportsgear – the same faces sighted at other venues across the nation and across the globe. Visiting ‘the mens’ gives new meaning to the word ambience when you are more likely to encounter Louis Vuitton and a CCTV camera than George Michael. George’s face, or that of Madonna, Barack Obama, Kevin 07 or Homer Simpson, might instead be sighted on the tshirts or hoodies mentioned above. George’s music might also be borne on the bodies of people you see in the park, on the street, or in the bus. This is the age of ambient performance, taken out of concert halls and virtualised on iPods, Walkmen and other personal devices, music at the demand of the consumer rather than as rationed by concert managers (Bull 85). The cost of that ambience, liberation of performance from time and space constraints, may be a Weberian disenchantment (Steiner 434). Technology has also removed anonymity by offering digital handcuffs to employees, partners, friends and children. The same mobile phones used in the past to offer excuses or otherwise disguise the bearer’s movement may now be tied to an observer through location services that plot the person’s movement across Google Maps or the geospatial information of similar services. That tracking is an extension into the private realm of the identification we now take for granted when using taxis or logistics services, with corporate Australia for example investing in systems that allow accurate determination of where a shipment is located (on Sydney Harbour Bridge? the loading dock? accompanying the truck driver on unauthorized visits to the pub?) and a forecast of when it will arrive (Monmonier 76). Such technologies are being used on a smaller scale to enforce digital Fordism among the binary proletariat in corporate buildings and campuses, with ‘smart badges’ and biometric gateways logging an individual’s movement across institutional terrain (so many minutes in the conference room, so many minutes in the bathroom or lingering among the faux rainforest near the Vice Chancellery) (Bolt). Bright Lights, Blog City It is a truth universally acknowledged, at least by right-thinking Foucauldians, that modernity is a matter of coercion and anomie as all that is solid melts into air. If we are living in an age of hypersocialisation and hypercapitalism – movies and friends on tap, along with the panoptic sorting by marketers and pervasive scrutiny by both the ‘information state’ and public audiences (the million people or one person reading your blog) that is an inevitable accompaniment of the digital cornucopia–we might ask whether everyone is or should be unhappy. This article began by highlighting traditional responses to the bright lights, brashness and excitement of the big city. One conclusion might be that in 2010 not much has changed. Some people experience ambient information as liberating; others as threatening, productive of physical danger or of a more insidious anomie in which personal identity is blurred by an ineluctable electro-smog. There is disagreement about the professionalism (for which read ethics and inhibitions) of ‘citizen media’ and about a culture in which, as in the 1920s, audiences believe that they ‘own the image’ embodying the celebrity or public malefactor. Digital technologies allow you to navigate through the urban maze and allow officials, marketers or the hostile to track you. Those same technologies allow you to subvert both the governmentality and governance. You are free: Be ambient! References Baron, Naomi. Always On: Language in an Online and Mobile World. New York: Oxford UP, 2008. Bauman, Zygmunt. Liquid Modernity. Oxford: Polity Press, 2000. Bell, David. “Bodies, Technologies, Spaces: On ‘Dogging’.” Sexualities 9.4 (2006): 387-408. Bennett, Colin. The Privacy Advocates: Resisting the Spread of Surveillance. Cambridge: MIT Press, 2008. Berman, Marshall. All That Is Solid Melts into Air: The Experience of Modernity. London: Verso, 2001. Bolt, Nate. “The Binary Proletariat.” First Monday 5.5 (2000). 25 Feb 2010 ‹http://131.193.153.231/www/issues/issue5_5/bolt/index.html›. Buck-Morss, Susan. The Dialectics of Seeing: Walter Benjamin and the Arcades Project. Cambridge: MIT Press, 1991. Bull, Michael. Sounding Out the City: Personal Stereos and the Management of Everyday Life. Oxford: Berg, 2003. Bull, Michael. Sound Moves: iPod Culture and the Urban Experience. London: Routledge, 2008 Burns, Kelli. Celeb 2.0: How Social Media Foster Our Fascination with Popular Culture. Santa Barbara: ABC-CLIO, 2009. Castells, Manuel. “The Urban Ideology.” The Castells Reader on Cities and Social Theory. Ed. Ida Susser. Malden: Blackwell, 2002. 34-70. Cossins, Anne, Jane Goodman-Delahunty, and Kate O’Brien. “Uncertainty and Misconceptions about Child Sexual Abuse: Implications for the Criminal Justice System.” Psychiatry, Psychology and the Law 16.4 (2009): 435-452. Dalton, David. “Policing Outlawed Desire: ‘Homocriminality’ in Beat Spaces in Australia.” Law & Critique 18.3 (2007): 375-405. De Certeau, Michel. The Practice of Everyday Life. Berkeley: University of California P, 1984. Dennis, Kingsley. “Keeping a Close Watch: The Rise of Self-Surveillance and the Threat of Digital Exposure.” The Sociological Review 56.3 (2008): 347-357. Dodge, Martin, and Rob Kitchin. “Outlines of a World Coming into Existence: Pervasive Computing and the Ethics of Forgetting.” Environment & Planning B: Planning & Design 34.3 (2007): 431-445. Doel, Marcus, and David Clarke. “Transpolitical Urbanism: Suburban Anomaly and Ambient Fear.” Space & Culture 1.2 (1998): 13-36. Dyer-Witheford, Nick. Cyber-Marx: Cycles and Circuits of Struggle in High Technology Capitalism. Champaign: U of Illinois P, 1999. Fritzsche, Peter. Reading Berlin 1900. Cambridge: Harvard UP, 1998. Gumpert, Gary, and Susan Drucker. “Privacy, Predictability or Serendipity and Digital Cities.” Digital Cities II: Computational and Sociological Approaches. Berlin: Springer, 2002. 26-40. Hassan, Robert. The Information Society. Cambridge: Polity Press, 2008. Hillier, Bill. “Cities as Movement Economies.” Intelligent Environments: Spatial Aspects of the Information Revolution. Ed. Peter Drioege. Amsterdam: Elsevier, 1997. 295-342. Holmes, David. “Cybercommuting on an Information Superhighway: The Case of Melbourne’s CityLink.” The Cybercities Reader. Ed. Stephen Graham. London: Routledge, 2004. 173-178. Huey, Laura, Kevin Walby, and Aaron Doyle. “Cop Watching in the Downtown Eastside: Exploring the Use of CounterSurveillance as a Tool of Resistance.” Surveillance and Security: Technological Politics and Power in Everyday Life. Ed. Torin Monahan. London: Routledge, 2006. 149-166. Ingebretsen, Edward. At Stake: Monsters and the Rhetoric of Fear in Public Culture. Chicago: U of Chicago P, 2001. iSee. “Now More Than Ever”. 20 Feb 2010 ‹http://www.appliedautonomy.com/isee/info.html›. Jackson, Margaret, and Julian Ligertwood. "Identity Management: Is an Identity Card the Solution for Australia?” Prometheus 24.4 (2006): 379-387. Jermyn, Deborah. Crime Watching: Investigating Real Crime TV. London: IB Tauris, 2007. Kullenberg, Christopher. “The Social Impact of IT: Surveillance and Resistance in Present-Day Conflicts.” FlfF-Kommunikation 1 (2009): 37-40. Lyon, David. Surveillance as Social Sorting: Privacy, Risk and Digital Discrimination. London: Routledge, 2003. Marr, David. The Henson Case. Melbourne: Text, 2008. Maynard, Margaret. Dress and Globalisation. Manchester: Manchester UP, 2004. Merchant, Carolyn. The Columbia Guide to American Environmental History. New York: Columbia UP, 2002. Monmonier, Mark. “Geolocation and Locational Privacy: The ‘Inside’ Story on Geospatial Tracking’.” Privacy and Technologies of Identity: A Cross-disciplinary Conversation. Ed. Katherine Strandburg and Daniela Raicu. Berlin: Springer, 2006. 75-92. Ndalianis, Angela. “Architecture of the Senses: Neo-Baroque Entertainment Spectacles.” Rethinking Media Change: The Aesthetics of Tradition. Ed. David Thorburn and Henry Jenkins. Cambridge: MIT Press, 2004. 355-374. Parenti, Christian. The Soft Cage: Surveillance in America. New York: Basic Books, 2003. Sayre, Shay. “T-shirt Messages: Fortune or Folly for Advertisers.” Advertising and Popular Culture: Studies in Variety and Versatility. Ed. Sammy Danna. New York: Popular Press, 1992. 73-82. Savitch, Henry. Cities in a Time of Terror: Space, Territory and Local Resilience. Armonk: Sharpe, 2008. Scheingold, Stuart. The Politics of Street Crime: Criminal Process and Cultural Obsession. Philadephia: Temple UP, 1992. Schivelbusch, Wolfgang. Disenchanted Night: The Industrialization of Light in the Nineteenth Century. Berkeley: U of California Press, 1995. Shafron-Perez, Sharon. “Average Teenager or Sex Offender: Solutions to the Legal Dilemma Caused by Sexting.” John Marshall Journal of Computer & Information Law 26.3 (2009): 431-487. Simmel, Georg. “The Metropolis and Mental Life.” Individuality and Social Forms. Ed. Donald Levine. Chicago: University of Chicago P, 1971. Staples, William. Everyday Surveillance: Vigilance and Visibility in Postmodern Life. Lanham: Rowman & Littlefield, 2000. Steiner, George. George Steiner: A Reader. New York: Oxford UP, 1987. Thompson, Emily. The Soundscape of Modernity: Architectural Acoustics and the Culture of Listening in America. Cambridge: The MIT Press, 2004. Wark, Mackenzie. Virtual Geography: Living with Global Media Events. Bloomington: Indiana UP, 1994. Wilson, Elizabeth. The Sphinx in the City: Urban Life, the Control of Disorder and Women. Berkeley: University of California P, 1991. Wood, David. “Towards Spatial Protocol: The Topologies of the Pervasive Surveillance Society.” Augmenting Urban Spaces: Articulating the Physical and Electronic City. Eds. Allesandro Aurigi and Fiorella de Cindio. Aldershot: Ashgate, 2008. 93-106.

IntroductionThe walking tour is an enduring feature of cities. Fuelled by a desire to learn more about the hidden and unknown spaces of the city, the walking tour has moved beyond its historical role as tourist attraction to play a key role in the transformation of urban space through gentrification. Conversely, the walking tour has a counter-history as part of a critical urban praxis. This article reflects on historical examples, as well as our own experience of conducting Field Trip, a critical geographical walking tour through an industrial precinct in Marrickville, a suburb of Sydney that is set to undergo rapid change as a result of high-rise residential apartment construction (Gibson et al.). This precinct, known as Carrington Road, is located on the unceded land of the Cadigal and Wangal people of the Eora nation who call the area Bulanaming.Drawing on a long history of philosophical walking, many contemporary writers (Solnit; Gros; Bendiner-Viani) have described walking as a practice that can open different ways of thinking, observing and being in the world. Some have focused on the value of walking to the study of place (Hall; Philips; Heddon), and have underscored its relationship to established research methods, such as sensory ethnography (Springgay and Truman). The work of Michel de Certeau pays particular attention to the relationship between walking and the city. In particular, the concepts of tactics and strategy have been applied in a variety of ways across cultural studies, cultural geography, and urban studies (Morris). In line with de Certeau’s thinking, we view walking as an example of a tactic – a routine and often unconscious practice that can become a form of creative resistance.In this sense, walking can be a way to engage in and design the city by opposing its structures, or strategies. For example, walking in a city such as Sydney that is designed for cars requires choosing alternative paths, redirecting flows of people and traffic, and creating custom shortcuts. Choosing pedestrianism in Sydney can certainly feel like a form of resistance, and we make the argument that Field Trip – and walking tours more generally – can be a way of doing this collectively, firstly by moving in opposite directions, and secondly, at incongruent speeds to those for whom the scale and style of strategic urban development is inevitable. How such tactical walking relates to the design of cities, however, is less clear. Walking is a generally described in the literature as an individual act, while the design of cities is, at its best participatory, and always involving multiple stakeholders. This reveals a tension between the practice of walking as a détournement or appropriation of urban space, and its relationship to existing built form. Field Trip, as an example of collective walking, is one such appropriation of urban space – one designed to lead to more democratic decision making around the planning and design of cities. Given the anti-democratic, “post-political” nature of contemporary “consultation” processes, this is a seemingly huge task (Legacy et al.; Ruming). We make the argument that Field Trip – and walking tours more generally – can be a form of collective resistance to top-down urban planning.By using an open-source wiki in combination with the Internet Archive, Field Trip also seeks to collectively document and make public the local knowledge generated by walking at the frontier of gentrification. We discuss these digital choices as oppositional practice, and consider the idea of tactical media (Lovink and Garcia; Raley) in order to connect knowledge sharing with the practice of walking.This article is structured in four parts. Firstly, we provide a historical introduction to the relationship between walking tours and gentrification of global cities. Secondly, we examine the significance of walking tours in Sydney and then specifically within Marrickville. Thirdly, we discuss the Field Trip project as a citizen-led walking tour and, finally, elaborate on its role as tactical media project and offer some conclusions.The Walking Tour and Gentrification From the outset, people have been walking the city in their own ways and creating their own systems of navigation, often in spite of the plans of officialdom. The rapid expansion of cities following the Industrial Revolution led to the emergence of “imaginative geographies”, where mediated representations of different urban conditions became a stand-in for lived experience (Steinbrink 219). The urban walking tour as mediated political tactic was utilised as far back as Victorian England, for reasons including the celebration of public works like the sewer system (Garrett), and the “othering” of the working class through upper- and middle-class “slum tourism” in London’s East End (Steinbrink 220). The influence of the Situationist theory of dérive has been immense upon those interested in walking the city, and we borrow from the dérive a desire to report on the under-reported spaces of the city, and to articulate alternative voices within the city in this project. It should be noted, however, that as Field Trip was developed for general public participation, and was organised with institutional support, some aspects of the dérive – particularly its disregard for formal structure – were unable to be incorporated into the project. Our responsibility to the participants of Field Trip, moreover, required the imposition of structure and timetable upon the walk. However, our individual and collective preparation for Field Trip, as well as our collective understanding of the area to be examined, has been heavily informed by psychogeographic methods that focus on quotidian and informal urban practices (Crosby and Searle; Iveson et al).In post-war American cities, walking tours were utilised in the service of gentrification. Many tours were organised by real estate agents with the express purpose of selling devalorised inner-city real estate to urban “pioneers” for renovation, including in Boston’s South End (Tissot) and Brooklyn’s Park Slope, among others (Lees et al 25). These tours focused on a symbolic revalorisation of “slum neighbourhoods” through a focus on “high culture”, with architectural and design heritage featuring prominently. At the same time, urban socio-economic and cultural issues – poverty, homelessness, income disparity, displacement – were downplayed or overlooked. These tours contributed to a climate in which property speculation and displacement through gentrification practices were normalised. To this day, “ghetto tours” operate in minority neighbourhoods in Brooklyn, serving as a beachhead for gentrification.Elsewhere in the world, walking tours are often voyeuristic, featuring “locals” guiding well-meaning tourists through the neighbourhoods of some of the world’s most impoverished communities. Examples include the long runningKlong Toei Private Tour, through “Bangkok’s oldest and largest slum”, or the now-ceased Jakarta Hidden Tours, which took tourists to the riverbanks of Jakarta to see the city’s poorest before they were displaced by gentrification.More recently, all over the world activists have engaged in walking tours to provide their own perspective on urban change, attempting to direct the gentrifier’s gaze inward. Whilst the most confrontational of these might be the Yuppie Gazing Tour of Vancouver’s historically marginalised Downtown Eastside, other tours have highlighted the deleterious effects of gentrification in Williamsburg, San Francisco, Oakland, and Surabaya, among others. In smaller towns, walking tours have been utilised to highlight the erasure of marginalised scenes and subcultures, including underground creative spaces, migrant enclaves, alternative and queer spaces. Walking Sydney, Walking Marrickville In many cities, there are now both walking tours that intend to scaffold urban renewal, and those that resist gentrification with alternative narratives. There are also some that unwittingly do both simultaneously. Marrickville is a historically working-class and migrant suburb with sizeable populations of Greek and Vietnamese migrants (Graham and Connell), as well as a strong history of manufacturing (Castles et al.), which has been undergoing gentrification for some time, with the arts playing an often contradictory role in its transformation (Gibson and Homan). More recently, as the suburb experiences rampant, financialised property development driven by global flows of capital, property developers have organised their own self-guided walking tours, deployed to facilitate the familiarisation of potential purchasers of dwellings with local amenities and ‘character’ in precincts where redevelopment is set to occur. Mirvac, Marrickville’s most active developer, has designed its own self-guided walking tour Hit the Marrickville Pavement to “explore what’s on offer” and “chat to locals”: just 7km from the CBD, Marrickville is fast becoming one of Sydney’s most iconic suburbs – a melting pot of cuisines, creative arts and characters founded on a rich multicultural heritage.The perfect introduction, this self-guided walking tour explores Marrickville’s historical architecture at a leisurely pace, finishing up at the pub.So, strap on your walking shoes; you're in for a treat.Other walking tours in the area seek to highlight political, ecological, and architectural dimension of Marrickville. For example, Marrickville Maps: Tropical Imaginaries of Abundance provides a series of plant-led walks in the suburb; The Warren Walk is a tour organised by local Australian Labor Party MP Anthony Albanese highlighting “the influence of early settlers such as the Schwebel family on the area’s history” whilst presenting a “political snapshot” of ALP history in the area. The Australian Ugliness, in contrast, was a walking tour organised by Thomas Lee in 2016 that offered an insight into the relationships between the visual amenity of the streetscape, aesthetic judgments of an ambiguous nature, and the discursive and archival potentialities afforded by camera-equipped smartphones and photo-sharing services like Instagram. Figure 1: Thomas Lee points out canals under the street of Marrickville during The Australian Ugliness, 2016.Sydney is a city adept at erasing its past through poorly designed mega-projects like freeways and office towers, and memorialisation of lost landscapes has tended towards the literary (Berry; Mudie). Resistance to redevelopment, however, has often taken the form of spectacular public intervention, in which public knowledge sharing was a key goal. The Green Bans of the 1970s were partially spurred by redevelopment plans for places like the Rocks and Woolloomooloo (Cook; Iveson), while the remaking of Sydney around the 2000 Olympics led to anti-gentrification actions such as SquatSpace and the Tour of Beauty, an “aesthetic activist” tour of sites in the suburbs of Redfern and Waterloo threatened with “revitalisation.” Figure 2: "Tour of Beauty", Redfern-Waterloo 2016. What marks the Tour of Beauty as significant in this context is the participatory nature of knowledge production: participants in the tours were addressed by representatives of the local community – the Aboriginal Housing Company, the local Indigenous Women’s Centre, REDWatch activist group, architects, designers and more. Each speaker presented their perspective on the rapidly gentrifying suburb, demonstrating how urban space is made an remade through processes of contestation. This differentiation is particularly relevant when considering the basis for Sydney-centric walking tours. Mirvac’s self-guided tour focuses on the easy-to-see historical “high culture” of Marrickville, and encourages participants to “chat to locals” at the pub. It is a highly filtered approach that does not consider broader relations of class, race and gender that constitute Marrickville. A more intense exploration of the social fabric of the city – providing a glimpse of the hidden or unknown spaces – uncovers the layers of social, cultural, and economic history that produce urban space, and fosters a deeper engagement with questions of urban socio-spatial justice.Solnit argues that walking can allow us to encounter “new thoughts and possibilities.” To walk, she writes, is to take a “subversive detour… the scenic route through a half-abandoned landscape of ideas and experiences” (13). In this way, tactical activist walking tours aim to make visible what cannot be seen, in a way that considers the polysemic nature of place, and in doing so, they make visible the hidden relations of power that produce the contemporary city. In contrast, developer-led walking tours are singularly focussed, seeking to attract inflows of capital to neighbourhoods undergoing “renewal.” These tours encourage participants to adopt the position of urban voyeur, whilst activist-led walking tours encourage collaboration and participation in urban struggles to protect and preserve the contested spaces of the city. It is in this context that we sought to devise our own walking tour – Field Trip – to encourage active participation in issues of urban renewal.In organising this walking tour, however, we acknowledge our own entanglements within processes of gentrification. As designers, musicians, writers, academics, researchers, venue managers, artists, and activists, in organising Field Trip, we could easily be identified as “creatives”, implicated in Marrickville’s ongoing transformation. All of us have ongoing and deep-rooted connections to various Sydney subcultures – the same subcultures so routinely splashed across developer advertising material. This project was borne out of Frontyard – a community not-just-art space, and has been supported by the local Inner West Council. As such, Field Trip cannot be divorced from the highly contentious processes of redevelopment and gentrification that are always simmering in the background of discussions about Marrickville. We hope, however, that in this project we have started to highlight alternative voices in those redevelopment processes – and that this may contribute towards a “method of equality” for an ongoing democratisation of those processes (Davidson and Iveson).Field Trip: Urban Geographical Enquiry as Activism Given this context, Field Trip was designed as a public knowledge project that would connect local residents, workers, researchers, and decision-makers to share their experiences living and working in various parts of Sydney that are undergoing rapid change. The site of our project – Carrington Road, Marrickville in Sydney’s inner-west – has been earmarked for major redevelopment in coming years and is quickly becoming a flashpoint for the debates that permeate throughout the whole of Sydney: housing affordability, employment accessibility, gentrification and displacement. To date, public engagement and consultation regarding proposed development at Carrington Road has been limited. A major landholder in the area has engaged a consultancy firm to establish a community reference group (CRG) the help guide the project. The CRG arose after public outcry at an original $1.3 billion proposal to build 2,616 units in twenty towers of up to 105m in height (up to thirty-five storeys) in a predominantly low-rise residential suburb. Save Marrickville, a community group created in response to the proposal, has representatives on this reference group, and has endeavoured to make this process public. Ruming (181) has described these forms of consultation as “post-political,” stating thatin a universe of consensual decision-making among diverse interests, spaces for democratic contest and antagonistic politics are downplayed and technocratic policy development is deployed to support market and development outcomes.Given the notable deficit of spaces for democratic contest, Field Trip was devised as a way to reframe the debate outside of State- and developer-led consultation regimes that guide participants towards accepting the supposed inevitability of redevelopment. We invited a number of people affected by the proposed plans to speak during the walking tour at a location of their choosing, to discuss the work they do, the effect that redevelopment would have on their work, and their hopes and plans for the future. The walking tour was advertised publicly and the talks were recorded, edited and released as freely available podcasts. The proposed redevelopment of Carrington Road provided us with a unique opportunity to develop and operate our own walking tour. The linear street created an obvious “circuit” to the tour – up one side of the road, and down the other. We selected speakers based on pre-existing relationships, some formed during prior rounds of research (Gibson et al.). Speakers included a local Aboriginal elder, a representative from the Marrickville Historical Society, two workers (who also gave tours of their workplaces), the Lead Heritage Adviser at Sydney Water, who gave us a tour of the Carrington Road pumping station, and a representative from the Save Marrickville residents’ group. Whilst this provided a number of perspectives on the day, regrettably some groups were unrepresented, most notably the perspective of migrant groups who have a long-standing association with industrial precincts in Marrickville. It is hoped that further community input and collaboration in future iterations of Field Trip will address these issues of representation in community-led walking tours.A number of new understandings became apparent during the walking tour. For instance, the heritage-listed Carrington Road sewage pumping station, which is of “historic and aesthetic significance”, is unable to cope with the proposed level of residential development. According to Philip Bennett, Lead Heritage Adviser at Sydney Water, the best way to maintain this piece of heritage infrastructure is to keep it running. While this issue had been discussed in private meetings between Sydney Water and the developer, there is no formal mechanism to make this expert knowledge public or accessible. Similarly, through the Acknowledgement of Country for Field Trip, undertaken by Donna Ingram, Cultural Representative and a member of the Metropolitan Local Aboriginal Land Council, it became clear that the local Indigenous community had not been consulted in the development proposals for Carrington Road. This information, while not necessary secret, had also not been made public. Finally, the inclusion of knowledgeable local workers whose businesses are located on Carrington Road provided an insight into the “everyday.” They talked of community and collaboration, of site-specificity, the importance of clustering within their niche industries, and their fears for of displacement should redevelopment proceed.Via a community-led, participatory walking tour like Field Trip, threads of knowledge and new information are uncovered. These help create new spatial stories and readings of the landscape, broadening the scope of possibility for democratic participation in cities. Figure 3: Donna Ingram at Field Trip 2018.Tactical Walking, Tactical Media Stories connected to walking provide an opportunity for people to read the landscape differently (Mitchell). One of the goals of Field Trip was to begin a public knowledge exchange about Carrington Road so that spatial stories could be shared, and new readings of urban development could spread beyond the confines of the self-contained tour. Once shared, this knowledge becomes a story, and once remixed into existing stories and integrated into the way we understand the neighbourhood, a collective spatial practice is generated. “Every story is a travel story – a spatial practice”, says de Certeau in “Spatial Stories”. “In reality, they organise walks” (72). As well as taking a tactical approach to walking, we took a tactical approach to the mediation of the knowledge, by recording and broadcasting the voices on the walk and feeding information to a publicly accessible wiki. The term “tactical media” is an extension of de Certeau’s concept of tactics. David Garcia and Geert Lovink applied de Certeau’s concept of tactics to the field of media activism in their manifesto of tactical media, identifying a class of producers who amplify temporary reversals in the flow of power by exploiting the spaces, channels and platforms necessary for their practices. Tactical media has been used since the late nineties to help explain a range of open-source practices that appropriate technological tools for political purposes. While pointing out the many material distinctions between different types of tactical media projects within the arts, Rita Raley describes them as “forms of critical intervention, dissent and resistance” (6). The term has also been adopted by media activists engaged in a range of practices all over the world, including the Tactical Technology Collective. For Field Trip, tactical media is a way of creating representations that help navigate neighbourhoods as well as alternative political processes that shape them. In this sense, tactical representations do not “offer the omniscient point of view we associate with Cartesian cartographic practice” (Raley 2). Rather these representations are politically subjective systems of navigation that make visible hidden information and connect people to the decisions affecting their lives. Conclusion We have shown that the walking tour can be a tourist attraction, a catalyst to the transformation of urban space through gentrification, and an activist intervention into processes of urban renewal that exclude people and alternative ways of being in the city. This article presents practice-led research through the design of Field Trip. By walking collectively, we have focused on tactical ways of opening up participation in the future of neighbourhoods, and more broadly in designing the city. By sharing knowledge publicly, through this article and other means such as an online wiki, we advocate for a city that is open to multimodal readings, makes space for sharing, and is owned by those who live in it. References Armstrong, Helen. “Post-Urban/Suburban Landscapes: Design and Planning the Centre, Edge and In-Between.” After Sprawl: Post Suburban Sydney: E-Proceedings of Post-Suburban Sydney: The City in Transformation Conference, 22-23 November 2005, Riverside Theatres, Parramatta, Sydney. 2006.Bendiner-Viani, Gabrielle. “Walking, Emotion, and Dwelling.” Space and Culture 8.4 (2005): 459-71. Berry, Vanessa. Mirror Sydney. Sydney: Giramondo, 2017.Castles, Stephen, Jock Collins, Katherine Gibson, David Tait, and Caroline Alorsco. “The Global Milkbar and the Local Sweatshop: Ethnic Small Business and the Economic Restructuring of Sydney.” Centre for Multicultural Studies, University of Wollongong, Working Paper 2 (1991).Crosby, Alexandra, and Kirsten Seale. “Counting on Carrington Road: Street Numbers as Metonyms of the Urban.” Visual Communication 17.4 (2018): 1-18. Crosby, Alexandra. “Marrickville Maps: Tropical Imaginaries of Abundance.” Mapping Edges, 2018. 25 Jun. 2018 <http://www.mappingedges.org/news/marrickville-maps-tropical-imaginaries-abundance/>.Cook, Nicole. “Performing Housing Affordability: The Case of Sydney’s Green Bans.” Housing and Home Unbound: Intersections in Economics, Environment and Politics in Australia. Eds. Nicole Cook, Aidan Davidson, and Louise Crabtree. London: Routledge, 2016. 190-203.Davidson, Mark, and Kurt Iveson. “Recovering the Politics of the City: From the ‘Post-Political City’ to a ‘Method of Equality’ for Critical Urban Geography.” Progress in Human Geography 39.5 (2015): 543-59. De Certeau, Michel. “Spatial Stories.” What Is Architecture? Ed. Andrew Ballantyne. London: Routledge, 2002. 72-87.Dobson, Stephen. “Sustaining Place through Community Walking Initiatives.” Journal of Cultural Heritage Management and Sustainable Development 1.2 (2011): 109-21. Garrett, Bradley. “Picturing Urban Subterranea: Embodied Aesthetics of London’s Sewers.” Environment and Planning A: Economy and Space 48.10 (2016): 1948-66. Gibson, Chris, and Shane Homan. “Urban Redevelopment, Live Music, and Public Space: Cultural Performance and the Re-Making of Marrickville.” International Journal of Cultural Policy 10.1 (2004): 67-84. Gibson, Chris, Carl Grodach, Craig Lyons, Alexandra Crosby, and Chris Brennan-Horley. Made in Marrickville: Enterprise and Cluster Dynamics at the Creative Industries-Manufacturing Interface, Carrington Road Precinct. Report DP17010455-2017/2, Australian Research Council Discovery Project: Urban Cultural Policy and the Changing Dynamics of Cultural Production. QUT, University of Wollongong, and Monash University, 2017.Glazman, Evan. “‘Ghetto Tours’ Are the Latest Cringeworthy Gentrification Trend in NYC”. Konbini, n.d. 5 June 2017 <http://www.konbini.com/us/lifestyle/ghetto-tours-latest-cringeworthy-gentrification-trend-nyc/>. Graham, Sonia, and John Connell. “Nurturing Relationships: the Gardens of Greek and Vietnamese Migrants in Marrickville, Sydney.” Australian Geographer 37.3 (2006): 375-93. Gros, Frédéric. A Philosophy of Walking. London: Verso Books, 2014.Hall, Tom. “Footwork: Moving and Knowing in Local Space(s).” Qualitative Research 9.5 (2009): 571-85. Heddon, Dierdre, and Misha Myers. “Stories from the Walking Library.” Cultural Geographies 21.4 (2014): 1-17. Iveson, Kurt. “Building a City for ‘The People’: The Politics of Alliance-Building in the Sydney Green Ban Movement.” Antipode 46.4 (2014): 992-1013. Iveson, Kurt, Craig Lyons, Stephanie Clark, and Sara Weir. “The Informal Australian City.” Australian Geographer (2018): 1-17. Jones, Phil, and James Evans. “Rescue Geography: Place Making, Affect and Regeneration.” Urban Studies 49.11 (2011): 2315-30. Lees, Loretta, Tom Slater, and Elvin Wyly. Gentrification. New York: Routledge, 2008.Legacy, Crystal, Nicole Cook, Dallas Rogers, and Kristian Ruming. “Planning the Post‐Political City: Exploring Public Participation in the Contemporary Australian City.” Geographical Research 56.2 (2018): 176-80. Lovink, Geert, and David Garcia. “The ABC of Tactical Media.” Nettime, 1997. 3 Oct. 2018 <http://www.nettime.org/Lists-Archives/nettime-l-9705/msg00096.html>.Mitchell, Don. “New Axioms for Reading the Landscape: Paying Attention to Political Economy and Social Justice.” Political Economies of Landscape Change. Eds. James L. Wescoat Jr. and Douglas M. Johnson. Dordrecht: Springer, 2008. 29-50.Morris, Brian. “What We Talk about When We Talk about ‘Walking in the City.’” Cultural Studies 18.5 (2004): 675-97. Mudie, Ella. “Unbuilding the City: Writing Demolition.” M/C Journal 20.2 (2017).Phillips, Andrea. “Cultural Geographies in Practice: Walking and Looking.” Cultural Geographies 12.4 (2005): 507-13. Pink, Sarah. “An Urban Tour: The Sensory Sociality of Ethnographic Place-Making.”Ethnography 9.2 (2008): 175-96. Pink, Sarah, Phil Hubbard, Maggie O’Neill, and Alan Radley. “Walking across Disciplines: From Ethnography to Arts Practice.” Visual Studies 25.1 (2010): 1-7. Quiggin, John. “Blogs, Wikis and Creative Innovation.” International Journal of Cultural Studies 9.4 (2006): 481-96. Raley, Rita. Tactical Media. Vol. 28. Minneapolis: U of Minnesota P, 2009.Ruming, Kristian. “Post-Political Planning and Community Opposition: Asserting and Challenging Consensus in Planning Urban Regeneration in Newcastle, New South Wales.” Geographical Research 56.2 (2018): 181-95. Solnit, Rebecca. Wanderlust: A History of Walking. New York: Penguin Books, 2001.Steinbrink, Malte. “‘We Did the Slum!’ – Urban Poverty Tourism in Historical Perspective.” Tourism Geographies 14.2 (2012): 213-34. Tissot, Sylvie. Good Neighbours: Gentrifying Diversity in Boston’s South End. London: Verso, 2015.

There is a moment in Al Gore’s 2006 documentary An Inconvenient Truth devised to expose the sheer audacity of fossil fuel lobby groups in the United States. In their attempts to address significant scientific consensus and growing public concern over climate change, these groups are resorting to what Gore’s film suggests are grotesque distortions of fact. A particular example highlighted in the film is the Competitive Enterprise Institute’s (CPE—a lobby group funded by ExxonMobil) “pro” energy industry advertisement: “Carbon dioxide”, the ad states. “They call it pollution, we call it life.” While on the one hand employing rhetoric against the “inconvenient truth” that carbon dioxide emissions are ratcheting up the Earth’s temperature, these advertisements also pose a question – though perhaps unintended – that is worth addressing. Where does life reside? This is not an issue of essentialism, but relates to the claims, materials and technologies through which life as a political object emerges. The danger of entertaining the vested interests of polluting industry in a discussion of climate change and its biopolitics is countered by an imperative to acknowledge the ways in which multiple positions in the climate change debate invoke and appeal to ‘life’ as the bottom line, or inviolable interest, of their political, social or economic work. In doing so, other questions come to the fore that a politics of climate change framed in terms of moral positions or competing values will tend to overlook. These questions concern the manifold practices of life that constitute the contemporary terrain of the political, and the actors and instruments put in this employ. Who speaks for life? And who or what produces it? Climate change as a matter of concern (Latour) has gathered and generated a host of experts, communities, narratives and technical devices all invested in the administration of life. It is, as Malcom Bull argues, “the paradigmatic issue of the new politics,” a politics which “draws people towards the public realm and makes life itself subject to the caprices of state and market” (2). This paper seeks to highlight the politics of life that have emerged around climate change as a public issue. It will argue that these politics appear in incremental and multiple ways that situate an array of actors and interests as active in both contesting and generating the terms of life: what life is and how we come to know it. This way of thinking about climate change debates opposes a prevalent moralistic framework that reads the practices and discourses of debate in terms of oppositional positions alone. While sympathies may flow in varying directions, especially when it comes to such a highly charged and massively consequential issue as climate change, there is little insight to be had from charging the CPE (for example) with manipulating consumers, or misrepresenting well-known facts. Where new and more productive understandings open up is in relation to the fields through which these gathering actors play out their claims to the project of life. These fields, from the state, to the corporation, to the domestic sphere, reveal a complex network of strategies and devices that seek to secure life in constantly renovated terms. Life Politics Biopolitical scholarship in the wake of Foucault has challenged life as a pre-given uncritical category, and sought to highlight the means through which it is put under question and constituted through varying and composing assemblages of practitioners and practices. Such work regards the project of human well-being as highly complex and technical, and has undertaken to document this empirically through close attention to the everyday ecologies in which humans are enmeshed. This is a political and theoretical project in itself, situating political processes in micro, as well as macro, registers, including daily life as a site of (self) management and governance. Rabinow and Rose refer to biopolitical circuits that draw together and inter-relate the multiple sites and scales operative in the administration of life. These involve not just technologies, rationalities and regimes of authority and control, but also politics “from below” in the form of rights claims and community formation and agitation (198). Active in these circuits, too, are corporate and non-state interests for whom the pursuit of maximising life’s qualities and capabilities has become a concern through which “market relations and shareholder value” are negotiated (Rabinow and Rose 211). As many biopolitical scholars argue, biopower—the strategies through which biopolitics are enacted—is characteristic of the “disciplinary neo-liberalism” that has come to define the modern state, and through which the conduct of conduct is practiced (Di Muzio 305). Foucault’s concept of governmentality describes the devolution of state-based disciplinarity and sovereignty to a host of non-state actors, rationalities and strategies of governing, including the self-managing subject, not in opposition to the state, but contributing to its form. According to Bratich, Packer and McCarthy, everyday life is thus “saturated with governmental techniques” (18) in which we are all enrolled. Unlike regimes of biopolitics identified with what Agamben terms “thanopolitics”—the exercise of biopower “which ultimately rests on the power of some to threaten the death of others” (Rabinow and Rose 198), such as the Nazi’s National Socialism and other eugenic campaigns—governmental arts in the service of “vitalist” biopolitics (Rose 1) are increasingly diffused amongst all those with an “interest” in sustaining life, from organisations to individuals. The integration of techniques of self-governance which ask the individual to work on themselves and their own dispositions with State functions has broadened the base by which life is governed, and foregrounded an unsettled terrain of life claims. Rose argues that medical science is at the forefront of these contemporary biopolitics, and to this effect “has […] been fully engaged in the ethical questions of how we should live—of what kinds of creatures we are, of the kinds of obligations that we have to ourselves and to others, of the kinds of techniques we can and should use to improve ourselves” (20). Asking individuals to self-identify through their medical histories and bodily specificities, medical cultures are also shaping new political arrangements, as communities connected by shared genetics or physical conditions, for instance, emerge, evolve and agitate according to the latest medical knowledge. Yet it is not just medicine that provokes ethical work and new political forms. The environment is a key site for life politics that entails a multi-faceted discourse of obligations and entitlements, across fields and scales of engagement. Calculating Environments In line with neo-liberal logic, environmental discourse concerned with ameliorating climate change has increasingly focused upon the individual as an agent of self-monitoring, to both facilitate government agendas at a distance, and to “self-fashion” in the mode of the autonomous subject, securing against external risks (Ong 501). Climate change is commonly represented as such a risk, to both human and non-human life. A recent letter published by the Royal Australasian College of Physicians in two leading British medical journals, named climate change as the “biggest global health threat of the twenty-first century” (Morton). As I have argued elsewhere (Potter), security is central to dominant cultures of environmental governance in the West; these cultures tie sustainability goals to various and interrelated regimes of monitoring which attach to concepts of what Clark and Stevenson call “the good ecological citizen” (238). Citizenship is thus practiced through strategies of governmentality which call on individuals to invest not just in their own well-being, but in the broader project of life. Calculation is a primary technique through which modern environmental governance is enacted; calculative strategies are seen to mediate risk, according to Foucault, and consequently to “assure living” (Elden 575). Rationalised schemes for self-monitoring are proliferating under climate change and the project of environmentalism more broadly, something which critics of neo-liberalism have identified as symptomatic of the privatisation of politics that liberal governmentality has fostered. As we have seen in Australia, an evolving policy emphasis on individual practices and the domestic sphere as crucial sites of environmental action – for instance, the introduction of domestic water restrictions, and the phasing out of energy-inefficient light bulbs in the home—provides a leading discourse of ethico-political responsibility. The rise of carbon dioxide counting is symptomatic of this culture, and indicates the distributed fields of life management in contemporary governmentality. Carbon dioxide, as the CPE is keen to point out, is crucial to life, but it is also—in too large an amount—a force of destruction. Its management, in vitalist terms, is thus established as an effort to protect life in the face of death. The concept of “carbon footprinting” has been promoted by governments, NGOs, industry and individuals as a way of securing this goal, and a host of calculative techniques and strategies are employed to this end, across a spectrum of activities and contexts all framed in the interests of life. The footprinting measure seeks to secure living via self-policed limits, which also—in classic biopolitical form—shift previously private practices into a public realm of count-ability and accountability. The carbon footprint, like its associates the ecological footprint and the water footprint, has developed as a multi-faceted tool of citizenship beyond the traditional boundaries of the state. Suggesting an ecological conception of territory and of our relationships and responsibilities to this, the footprint, as a measure of resource use and emissions relative to the Earth’s capacities to absorb these, calculates and visualises the “specific qualities” (Elden 575) that, in a spatialised understanding of security, constitute and define this territory. The carbon footprint’s relatively simple remit of measuring carbon emissions per unit of assessment—be that the individual, the corporation, or the nation—belies the ways in which life is formatted and produced through its calculations. A tangled set of devices, practices and discourses is employed to make carbon and thus life calculable and manageable. Treading Lightly The old environmental adage to “tread lightly upon the Earth” has been literalised in the metaphor of the footprint, which attempts both to symbolise environmental practice and to directly translate data in order to meaningfully communicate necessary boundaries for our living. The World Wildlife Fund’s Living Planet Report 2008 exemplifies the growing popularity of the footprint as a political and poetic hook: speaking in terms of our “ecological overshoot,” and the move from “ecological credit to ecological deficit”, the report urges an attendance to our “global footprint” which “now exceeds the world’s capacity to regenerate by about 30 per cent” (1). Angela Crombie’s A Lighter Footprint, an instruction manual for sustainable living, is one of a host of media through which individuals are educated in modes of footprint calculation and management. She presents a range of techniques, including carbon offsetting, shifting to sustainable modes of transport, eating and buying differently, recycling and conserving water, to mediate our carbon dioxide output, and to “show […] politicians how easy it is” (13). Governments however, need no persuading from citizens that carbon calculation is an exercise to be harnessed. As governments around the world move (slowly) to address climate change, policies that instrumentalise carbon dioxide emission and reduction via an auditing of credits and deficits have come to the fore—for example, the European Union Emissions Trading Scheme and the Chicago Climate Exchange. In Australia, we have the currently-under-debate Carbon Pollution Reduction Scheme, a part of which is the Australian Emissions Trading Scheme (AETS) that will introduce a system of “carbon credits” and trading in a market-based model of supply and demand. This initiative will put a price on carbon dioxide emissions, and cap the amount of emissions any one polluter can produce without purchasing further credits. In readiness for the scheme, business initiatives are forming to take advantage of this new carbon market. Industries in carbon auditing and off-setting services are consolidating; hectares of trees, already active in the carbon sequestration market, are being cultivated as “carbon sinks” and key sites of compliance for polluters under the AETS. Governments are also planning to turn their tracts of forested public land into carbon credits worth billions of dollars (Arup 7). The attachment of emission measures to goods and services requires a range of calculative experts, and the implementation of new marketing and branding strategies, aimed at conveying the carbon “health” of a product. The introduction of “food mile” labelling (the amount of carbon dioxide emitted in the transportation of the food from source to consumer) in certain supermarkets in the United Kingdom is an example of this. Carbon risk analysis and management programs are being introduced across businesses in readiness for the forthcoming “carbon economy”. As one flyer selling “a suite of carbon related services” explains, “early action will give you the edge in understanding and mitigating the risks, and puts you in a prime position to capitalise on the rewards” (MGI Business Solutions Worldwide). In addition, lobby groups are working to ensure exclusions from or the free allocation of permits within the proposed AETS, with degrees of compulsion applied to different industries – the Federal Government, for instance, will provide a $3.9 billion compensation package for the electric power sector when the AETS commences, to enable their “adjustment” to this carbon regime. Performing Life Noortje Mares provides a further means of thinking through the politics of life in the context of climate change by complicating the distinction between public and private interest. Her study of “green living experiments” describes the rise of carbon calculation in the home in recent years, and the implementation of technologies such as the smart electricity meter that provides a constantly updating display of data relating to amounts and cost of energy consumed and the carbon dioxide emitted in the routines of domestic life. Her research tracks the entry of these personal calculative regimes into public life via internet forums such as blogs, where individuals notate or discuss their experiences of pursing low-carbon lifestyles. On the one hand, these calculative practices of living and their public representation can be read as evidencing the pervasive neo-liberal governmentality at work in contemporary environmental practice, where individuals are encouraged to scrupulously monitor their domestic cultures. The rise of auditing as a technology of self, and more broadly as a technique of public accountability, has come under fire for its “immunity-granting role” (Charkiewicz 79), where internal audits become substituted for external compliance and regulation. Mares challenges this reading, however, by demonstrating the ways in which green living experiments “transform everyday material practices into practices of public involvement” that (118) don’t resolve or pin down relations between the individual, the non-human environment, and the social, or reveal a mappable flow of actions and effects between the public realm and the home. The empirical modes of publicity that these individuals employ, “the careful recording of measurements and the reliable descriptions of sensory observation, so as to enable ‘virtual witnessing’ by wider audiences”, open up to much more complex understandings than one of calculative self-discipline at work. As “instrument[s] of public involvement” (120), the experiments that Mares describe locate the politics of life in the embodied socio-material entanglements of the domestic sphere, in arrangements of humans and non-human technologies. Such arrangements, she suggests, are ontologically productive in that they introduce “not only new knowledge, but also new entities […] to society” (119), and as such these experiments and the modes of calculation they employ become active in the composition of reality. Recent work in economic sociology and cultural studies has similarly contended that calculation, far from either a naturalised or thoroughly abstract process, relies upon a host of devices, relations, and techniques: that is, as Gay Hawkins explains, calculative processes “have to be enacted” (108). Environmental governmentality in the service of securing life is a networked practice that draws in a host of actors, not a top-down imposition. The institution of carbon economies and carbon emissions as a new register of public accountability, brings alternative ways to calculate the world into being, and consequently re-calibrates life as it emerges from these heterogeneous arrangements. All That Gathers Latour writes that we come to know a matter of concern by all the things that gather around it (Latour). This includes the human, as well as the non-human actors, policies, practices and technologies that are put to work in the making of our realities. Climate change is routinely represented as a threat to life, with predicted (and occurring) species extinction, growing numbers of climate change refugees, dispossessed from uninhabitable lands, and the rise of diseases and extreme weather scenarios that put human life in peril. There is no doubt, of course, that climate change does mean death for some: indeed, there are thanopolitical overtones in inequitable relations between the fall-out of impacts from major polluting nations on poorer countries, or those much more susceptible to rising sea levels. Biosocial equity, as Bull points out, is a “matter of being equally alive and equally dead” (2). Yet in the biopolitical project of assuring living, life is burgeoning around the problem of climate change. The critique of neo-liberalism as a blanketing system that subjects all aspects of life to market logic, and in which the cynical techniques of industry seek to appropriate ethico-political stances for their own material ends, are insufficient responses to what is actually unfolding in the messy terrain of climate change and its biopolitics. What this paper has attempted to show is that there is no particular purchase on life that can be had by any one actor who gathers around this concern. Varying interests, ambitions, and intentions, without moral hierarchy, stake their claim in life as a constantly constituting site in which they participate, and from this perspective, the ways in which we understand life to be both produced and managed expand. This is to refuse either an opposition or a conflation between the market and nature, or the market and life. It is also to argue that we cannot essentialise human-ness in the climate change debate. For while human relations with animals, plants and weathers may make us what we are, so too do our relations with (in a much less romantic view) non-human things, technologies, schemes, and even markets—from carbon auditing services, to the label on a tin on the supermarket shelf. As these intersect and entangle, the project of life, in the new politics of climate change, is far from straightforward. References An Inconvenient Truth. Dir. Davis Guggenheim. Village Roadshow, 2006. Arup, Tom. “Victoria Makes Enormous Carbon Stocktake in Bid for Offset Billions.” The Age 24 Sep. 2009: 7. Bratich, Jack Z., Jeremy Packer, and Cameron McCarthy. “Governing the Present.” Foucault, Cultural Studies and Governmentality. Ed. Bratich, Packer and McCarthy. Albany: State University of New York Press, 2003. 3-21. Bull, Malcolm. “Globalization and Biopolitics.” New Left Review 45 (2007): 12 May 2009 . < http://newleftreview.org/?page=article&view=2675 >. Charkiewicz, Ewa. “Corporations, the UN and Neo-liberal Bio-politics.” Development 48.1 (2005): 75-83. Clark, Nigel, and Nick Stevenson. “Care in a Time of Catastrophe: Citizenship, Community and the Ecological Imagination.” Journal of Human Rights 2.2 (2003): 235-246. Crombie, Angela. A Lighter Footprint: A Practical Guide to Minimising Your Impact on the Planet. Carlton North, Vic.: Scribe, 2007. Di Muzio, Tim. “Governing Global Slums: The Biopolitics of Target 11.” Global Governance. 14.3 (2008): 305-326. Elden, Stuart. “Governmentality, Calculation and Territory.” Environment and Planning D: Society and Space 25 (2007): 562-580. Hawkins, Gay. The Ethics of Waste: How We Relate to Rubbish. Sydney: University of New South Wales Press, 2006. Latour, Bruno. “Why Has Critique Run Out of Steam?: From Matters of Fact to Matters of Concern.” Critical Inquiry 30.2 (2004): 225-248. Mares, Noortje. “Testing Powers of Engagement: Green Living Experiments, the Ontological Turn and the Undoability and Involvement.” European Journal of Social Theory 12.1 (2009): 117-133. MGI Business Solutions Worldwide. “Carbon News.” Adelaide. 2 Aug. 2009. Ong, Aihwa. “Mutations in Citizenship.” Theory, Culture and Society 23.2-3 (2006): 499-505. Potter, Emily. “Footprints in the Mallee: Climate Change, Sustaining Communities, and the Nature of Place.” Landscapes and Learning: Place Studies in a Global World. Ed. Margaret Somerville, Kerith Power and Phoenix de Carteret. Sense Publishers. Forthcoming. Rabinow, Paul, and Nikolas Rose. “Biopower Today.” Biosocieties 1 (2006): 195-217. Rose, Nikolas. “The Politics of Life Itself.” Theory, Culture and Society 18.6 (2001): 1-30. World Wildlife Fund. Living Planet Report 2008. Switzerland, 2008.