Ranging across both standard philosophical territory and the landscape of cutting-edge cognitive science, Mindware: An Introduction to the Philosophy of Cognitive Science, Second Edition, is a vivid and engaging introduction to key issues, research, and opportunities in the field.Starting with the vision of mindware as software and debates between realists, instrumentalists, and eliminativists, Andy Clark takes students on a no-holds-barred journey through connectionism, dynamical systems, and real-world robotics before moving on to the frontiers of cognitive technologies, enactivism, predictive coding, (...) and the extended mind. Throughout, he highlights challenging issues in an effort to engage students in active debate. Each chapter opens with a brief sketch of a major research tradition or perspective, followed by concise critical discussions dealing with key topics and problems. (shrink)

Ferruccio Busoni's Sketch of a New Aesthetic of Music appeared in 1910. Schoenberg, in his copy of the little book, wrote critical marginal comments which crystallize two opposed outlooks in musical aesthetics. Busoni writes: Notation, the writing out of compositions, is primarily an ingenious expedient for catching an inspiration, with the purpose of exploiting it later. But notation is to improvisation as the portrait is to the living model… …What the composer's inspiration necessarily loses through notation, his interpreter should restore (...) by his own…. (shrink)

In this book, Andy Mueller examines the ways in which epistemic and practical rationality are intertwined. In the first part, he presents an overview of the contemporary debates about epistemic norms for practical reasoning, and defends the thesis that epistemic rationality can make one practically irrational. Mueller proposes a contextualist account of epistemic norms for practical reasoning and introduces novel epistemic norms pertaining to ends and hope. In the second part Mueller considers current approaches to pragmatic encroachment in epistemology, (...) ultimately arguing in favor of a new principle-based argument for pragmatic encroachment. While the book defends tenets of the knowledge-first programme, one of its main conclusions is thoroughly pragmatist: in an important sense, the practical has primacy over the epistemic. (shrink)

In Supersizing the Mind, Andy Clark argues that the human mind is not bound inside the head but extends into body and environment.

Introduction Jamie Allen Time, of all the dimensions readily presented to experience, seems to do so most readily through things. Stuff, in supposed counter-valence to the negentropic resilience of living things, appears to us as that which degrades through time, and demarcates a more technical chronometry of sequential events. Situated outside the rotting of fruit and the ticking of clocks, a “deep time” persists. Like the ultra-hearing of the bat, and the infra-vision of the boa-constrictor, there exist living and non-living (...) agents and entities capable of revealing the fixity and finitude of our own perceptual frames for thinking and understanding. The recordings presented here consist of four extracts of documents made in deep geological repository sites (for the storage of nuclear waste). Here re-presented are the Yucca Mountain Repository; HADES, in Mol, Belgium; Gorleben in Germany and a further recording from Forsmark in Sweden (pretty much inaudible behind a loop of a pop song). These recordings are imagined acoustic amplifications of deep time, just as the astronomer’s telescope is (thought of a certain way), also a time machine. Stars and nuclear waste are unapparent objects of temporal thought. Andy Weir is an artist from London researching effects of deprioritised subjectivity and contemporary art. This project draws on work developing sonic fictions, stealthy earworms, and micropolitical agencies. Prompted for further thoughts about the recordings presented here, he offered up the interspersed discussion included. —JA Yucca Mountain Repository, Nevada, USA by continent I became interested in these sites originally as spaces that allude to a time outside of the human (‘deep time’) as they are designed to store waste ‘without future maintenance’. The very fact of thinking about these spaces or working on them—engineering etc.. (as I’m particularly interested them in a kind of practice rather than just an object of thought), in other words, forces a confrontation with thought of the extinction of humanity. I was interested in this as a production of affect at odds with the expected ‘ironic, can be whatever you like’ interpretive condition of contemporary art (art under the condition of neoliberalism, say, where the individual subject is prioritised as a free autonomous producer of the meaning of the work) When I thought about this a bit though it ran into paradoxes—yes, I could allude to deep time, but in doing so I just allude to its un-representability, drawing attention to the limits of representation and so reaffirming it—I was stuck in a representation/non-representational negative dialectic. In trying to somehow create a figure for deep time I was either reducing it to my description of it, or presenting it as irreducible. HADES Facility, Mol, Belgium by continent I don’t think I’ve escaped this in the work but my response to it was to create a sonic-fiction. This was based on the idea of a viral transmission of the affect of deep time (this is the ‘pyroclastic-soaked chrono-dread’) through receiving apparatuses, transforming the screen into an intercessor or mediating lure for the outside, a site of exposure multiplying virulently through its dissemination, invoking as much as trying to represent these spaces, the sounds as durations of exposure to contagious materials, and fictions as a way of excavating the strangeness of a world opaque to subjective reconfiguration... Testing out I suppose ways that art could start thinking about figuring the reality of ecological crisis. Gorleben Repository, Lower Saxony, Germany by continent While everything remains at the level of fiction I think the work is problematic. It doesn’t really model anything, giving too much authority to either romantic abandonment or the recuperation of romantic abandonment under its description by theory/philosophy, all contained and controlled by me within a fairly limited condition of what art can do. Deep Time Contagion is precisely a materialisation of and transmission of this paradox (i.e. with screen-media can only present deep time as unrepresentable or draw attention to an inability to present it) taking the comfort/panic induced by this paradox as its material. I’m working now on some new projects that take this as a point of departure. Forsmark Repository, Sweden (Robitussin Mix) by continent. (shrink)

Hohwy (Hohwy 2016, Hohwy 2017) argues there is a tension between the free energy principle and leading depictions of mind as embodied, enactive, and extended (so-called ‘EEE1 cognition’). The tension is traced to the importance, in free energy formulations, of a conception of mind and agency that depends upon the presence of a ‘Markov blanket’ demarcating the agent from the surrounding world. In what follows I show that the Markov blanket considerations do not, in fact, lead to the kinds of (...) tension that Hohwy depicts. On the contrary, they actively favour the EEE story. This is because the Markov property, as exemplified in biological agents, picks out neither a unique nor a stationary boundary. It is this multiplicity and mutability– rather than the absence of agent-environment boundaries as such - that EEE cognition celebrates. (shrink)

Aesthetics and Music is a rich and interesting study. Hamilton's approach is innovative. He interleaves chapters on the history of philosophical thought about music with more theoretical discussions of music, sound, rhythm and improvisation, but does not cover the work–performance relation, depiction or expression. He draws on an atypically broad range of examples, including avant-garde, medieval, non-Western and jazz. The assumptions are humanist: ‘I wish to argue for an aesthetic conception of music as an art … according to which music (...) is a human activity grounded in the body and bodily movement and interfused with human life’.The historical chapters are valuable and not without analysis and criticism. Hamilton shows how the ancient Greek theorists were more interested in music's mathematical properties as reflecting the underlying harmony of relations between cosmic bodies than in the practice of musicians. While they equated the value of art with its contribution to an education for citizenship and while their concept of the arts differed …. (shrink)

I argue against Schroeder's explanation of pragmatic encroachment on knowledge. In section 1, I introduce pragmatic encroachment and point out that an explanation of it should avoid Pascalian considerations. In section 2, summarize the key aspects of Schroeder's explanation of pragmatic encroachment. In section 3, I argue that Schroeder's explanation faces a dilemma: it either allows for an objectionable form of Pascalian encroachment or it fails to be a fully general explanation of pragmatic encroachment.

Where does the mind stop and the rest of the world begin? The question invites two standard replies. Some accept the demarcations of skin and skull, and say that what is outside the body is outside the mind. Others are impressed by arguments suggesting that the meaning of our words "just ain't in the head", and hold that this externalism about meaning carries over into an externalism about mind. We propose to pursue a third position. We advocate a very different (...) sort of externalism: an _active externalism_, based on the active role of the environment in driving cognitive processes. (shrink)

In the movie, Memento, the hero, Leonard, suffers from a form of anterograde amnesia that results in an inability to lay down new memories. Nonetheless, he sets out on a quest to find his wife’s killer, aided by the use of notes, annotated polaroids, and (for the most important pieces of information obtained) body tattoos. Using these resources he attempts to build up a stock of new beliefs and to thus piece together the puzzle of his wife’s death. At one (...) point in the movie, a character exasperated by Leonard’s lack of biological recall, shouts. (shrink)

Recent work in cognitive and computational neuroscience depicts human brains as devices that minimize prediction error signals: signals that encode the difference between actual and expected sensory stimulations. This raises a series of puzzles whose common theme concerns a potential misfit between this bedrock informationtheoretic vision and familiar facts about the attractions of the unexpected. We humans often seem to actively seek out surprising events, deliberately harvesting novel and exciting streams of sensory stimulation. Conversely, we often experience some wellexpected sensations (...) as unpleasant and to-be-avoided. In this paper, I explore several core and variant forms of this puzzle, using them to display multiple interacting elements that together deliver a satisfying solution. That solution requires us to go beyond the discussion of simple information-theoretic imperatives and to recognize the essential role of species-specific prestructuring, epistemic foraging, and cultural practices in shaping the restless, curious, novelty-seeking human mind. (shrink)

COVID-19 caused levels of household food insecurity to spike, but the precarity of so many people in wealthy countries is an outgrowth of decades of eroding public provisions and labour protections that once protected people from hunger, setting the stage for the virus’ unevenly-distributed harms. The prominence of corporate-sponsored foodbanking as a containment response to pandemic-aggravated food insecurity follows decades of replacing rights with charity. We review structural drivers of charity’s growth to prominence as a hunger solution in North America, (...) and of its spread to countries including the UK. By highlighting pre-pandemic pressures shaping foodbanking, including charities’ efforts to retool themselves as health providers, we ask whether anti-hunger efforts during the pandemic serve to contain ongoing socioeconomic crises and the unjust living conditions they cause, or contest them through transformative pathways to a just food system. We suggest that pandemic-driven philanthropic and state funding flows have bolstered foodbanking and the food system logics that support it. By contextualising the complex and variegated politics of foodbanking in broader movements, from community food security to food sovereignty, we reframe simplistic narratives of charity and highlight the need for justice-oriented structural changes in wealth redistribution and food system organisation if we are to prevent the kinds of emergency-within-emergency that we witnessed as COVID-19 revealed the proximity of many to hunger. (shrink)

Andy Blunden's Hegel Marx & Vygotsky, Essays in Social Philosophy presents his novel approach to social theory in a series of essays. Blunden aims to use the cultural psychology of Lev Vygotsky and the Soviet Activity Theorists to renew Hegelian Marxism as an interdisciplinary science. This allows psychologists and social theorists to share their insights through concepts equally valid in either domain. The work includes critical reviews of the works of central figures in Soviet psychology and other writers offering (...) fruitful insights. Essays on topics as diverse as vaccine scepticism and the origins of language test out the interdisciplinary power of the theory, as well as key texts on historical analysis, methodology and the nature of the present conjuncture. (shrink)

Recent work in computational and cognitive neuroscience depicts the brain as an ever‐active prediction machine: an inner engine continuously striving to anticipate the incoming sensory barrage. I briefly introduce this class of models before contrasting two ways of understanding the implied vision of mind. One way (Conservative Predictive Processing) depicts the predictive mind as an insulated inner arena populated by representations so rich and reconstructive as to enable the organism to ‘throw away the world’. The other (Radical Predictive Processing) stresses (...) the use of fast and frugal, action‐involving solutions of the kind highlighted by much work in robotics and embodied cognition. But it goes further, by showing how predictive schemes can combine frugal and more knowledge‐intensive strategies, switching between them fluently and continuously as task and context dictate. I end by exploring some parallels with work in enactivism, and by noting a certain ambivalence concerning internal representations and their role in the predictive mind. (shrink)

This essay is concerned with what Abbinnett1 described as fundamental to the discourses of social science: truth and its construction. The central problem around which the narrative is built is a growing disconnection in one area of social science, management research, between how truth is frequently defined and used and the approaches taken to constructing that truth. The result of this is an intellectual impurity whereby management research occupies an incoherent intellectual space somewhere between modernism and postmodernism. Our argument is (...) that, for a host of probable reasons, management research in many areas is dominated by the search for rational and scientific truth through the use of quantitative methodologies underpinned by a positivist philosophy. The result of this is frequently truth diluted rather than truth distilled. The essay discusses different routes to establishing a type of truth, the location of management research within a modern-postmodern continuum and the implications of this for management researchers. We begin, however, with a brief discussion of the nature of truth in social science. (shrink)

Are artists, designers and musicians inventors? Or does the invention originate from scientific discovery alone? Ecologies of Invention is the first collection of essays that brings together writers and scholars of international standing from the University of Sydney and beyond to examine assumptions underlying notions of inventiveness. The writers explain how inventiveness borne out of aesthetic ambitions is impacting on and changing our culture and society. Ecologies of Invention describes the articulation of inventive capacities across disciplines and across multiple scales, (...) from personal capacities to the social, spatial and network configurations that drive people to produce inventions. The book poses new questions for scholars, artists, architects, designers, historians, engineers, scientists, lawyers and economists about the nature, origins and processes of invention. 'This is a challenging book which confronts traditional thinking around creativity and inventiveness and raises issues that need serious debate'. Barry Jones AO. (shrink)

Can the Euthydemus illuminate the philosophical significance of sophistry? In answering this question, I ask why the most direct and sustained confrontations between Socrates and the two brothers should all center on time and the soul. The Euthydemus, I argue, is a not primarily a polemic against eristic manipulation of language, but a diagnosis of the soul’s ambiguous unity. It shows that sophistic speech emerges from the soul’s way of relating to its own temporal character and to logos. Stated differently, (...) a central theme of this dialogue is one which, we are repeatedly told, the Greeks had not yet thematized--the nature of interiority. (shrink)

How is it that thoroughly physical material beings such as ourselves can think, dream, feel, create and understand ideas, theories and concepts? How does mere matter give rise to all these non-material mental states, including consciousness itself? An answer to this central question of our existence is emerging at the busy intersection of neuroscience, psychology, artificial intelligence, and robotics.In this groundbreaking work, philosopher and cognitive scientist Andy Clark explores exciting new theories from these fields that reveal minds like ours (...) to be prediction machines - devices that have evolved to anticipate the incoming streams of sensory stimulation before they arrive. These predictions then initiate actions that structure our worlds and alter the very things we need to engage and predict. Clark takes us on a journey in discovering the circular causal flows and the self-structuring of the environment that define "the predictive brain." What emerges is a bold, new, cutting-edge vision that reveals the brain as our driving force in the daily surf through the waves of sensory stimulation. (shrink)

Health care institutions must decide whether to inform the patient of a medical error. The barriers to disclosure are an aversion to admitting errors, a concern about implicating other practitioners, and a fear of lawsuits and liability. However, admission of medical errors is the ethical thing to do and may be required by law. When examined, the barriers to such disclosures have little merit, and, in fact, lawsuits and liability may actually be reduced by informing the patient of medical errors. (...) Therefore, a health care institution should implement a written policy providing for disclosure of medical errors, using a process such as that outlined in the article. (shrink)

Hegel for Social Movements by Andy Blunden is an introduction to the reading of Hegel intended for those already active in social movements. It introduces Hegel's ideas in a way which will be useful for those fighting for social change, and while some familiarity with philosophy would be an advantage for the reader, the main pre-requisite is a commitment to the practical pursuit of ideal aims. The book covers the whole sweep of Hegel's writing, but focuses particularly on the (...) Logic and Hegel's social theory - the Philosophy of Right. Blunden brings to his exposition an original interpretation of Hegel's Logic as the logic of social change, utilizing his expertise in Vygotsky's cultural psychology and Soviet Activity Theory. (shrink)

There is a lot that we don't know. That means that there are a lot of possibilities that are, epistemically speaking, open. For instance, we don't know whether it rained in Seattle yesterday. So, for us at least, there is an epistemic possibility where it rained in Seattle yesterday, and one where it did not. What are these epistemic possibilities? They do not match up with metaphysical possibilities - there are various cases where something is epistemically possible but not metaphysically (...) possible, and vice versa. How do we understand the semantics of statements of epistemic modality? The ten new essays in this volume explore various answers to these questions, including those offered by contextualism, relativism, and expressivism. (shrink)

In treating cognition as problem solving, Andy Clark suggests, we may often abstract too far from the very body and world in which our brains evolved to guide...

The moral status of animals is a subject of controversy both within and beyond academic philosophy, especially regarding the question of whether and when it is ethical to eat meat. A commitment to animal rights and related notions of animal protection is often thought to entail a plant-based diet, but recent philosophical work challenges this view by arguing that, even if animals warrant a high degree of moral standing, we are permitted - or even obliged - to eat meat. (...) class='Hi'>Andy Lamey provides critical analysis of past and present dialogues surrounding animal rights, discussing topics including plant agriculture, animal cognition, and in vitro meat. He documents the trend toward a new kind of omnivorism that justifies meat-eating within a framework of animal protection, and evaluates for the first time which forms of this new omnivorism can be ethically justified, providing crucial guidance for philosophers as well as researchers in culture and agriculture. (shrink)

My understanding is that proximate explanations concern adaptive mechanism and that ultimate explanations concern adaptive rationale. Viewed in this light, the two kinds of explanation are quite distinct, but they interact in a complementary way to give a full understanding of biological adaptations. In contrast, Laland et al. (2013)—following a literal reading of Mayr (Science 134:1501–1506, 1961)—have characterized ultimate explanations as concerning any and all mechanisms that have operated over the course of an organism’s evolutionary history. This has unfortunate consequences, (...) such as allowing random drift to form the basis for ultimate explanations, and allowing proximate and ultimate explanations to bleed into each other until their distinction is meaningless. Here, I suggest Laland et al’s explanatory framework of “reciprocal causation” is not conducive to successful biological science, and that they have misunderstood key elements of the theory of Darwinian adaptation. (shrink)

“There’s no disputing about taste.” That’s got a nice ring to it, but it’s not quite the ring of truth. While there’s definitely something right about the aphorism – there’s a reason why it is, after all, an aphorism, and why its utterance tends to produce so much nodding of heads and muttering of “just so” and “yes, quite” – it’s surprisingly difficult to put one’s finger on just what the truth in the neighborhood is, exactly. One thing that’s pretty (...) clear is that what’s right about the aphorism, that there’s no disputing about taste, isn’t that there’s no disputing about taste. There’s heaps of disputing about taste. People engage in disputes about which movies, music, paintings, literature, meals, furniture, architectural styles, etc. are good, beautiful, tasty, fun, elegant, ugly, disgusting, etc. all the time. This is obvious to anyone who has watched dueling-movie-critics shows, read theater reviews, or negotiated with a group or partner about which movie or restaurant to go to, or which sofa or painting to put in the living room. It takes great care and good aim to fling a brick without hitting somebody who’s engaged in a dispute about taste. (shrink)

I think that there are good reasons to adopt a relativist semantics for epistemic modal claims such as ``the treasure might be under the palm tree'', according to which such utterances determine a truth value relative to something finer-grained than just a world (or a <world, time> pair). Anyone who is inclined to relativise truth to more than just worlds and times faces a problem about assertion. It's easy to be puzzled about just what purpose would be served by assertions (...) of this kind, and how to understand what we'd be up to in our use of sentences like ``the treasure might be under the palm tree'', if they have such peculiar truth conditions. After providing a very quick argument to motivate a relativist view of epistemic modals, I bring out and attempt to resolve this problem in making sense of the role of assertions with relativist truth conditions. Solving this problem should be helpful in two ways: first, it eliminates an apparently forceful objection to relativism, and second, spelling out the relativist account of assertion and communication will help to make clear just what the relativist position is, exactly, and why it's interesting. (shrink)

A very simple contextualist treatment of a sentence containing an epistemic modal, e.g. a might be F, is that it is true iff for all the contextually salient community knows, a is F. It is widely agreed that the simple theory will not work in some cases, but the counterexamples produced so far seem amenable to a more complicated contextualist theory. We argue, however, that no contextualist theory can capture the evaluations speakers naturally make of sentences containing epistemic modals. If (...) we want to respect these evaluations, our best option is a relativist theory of epistemic modals. On a relativist theory, an utterance of a might be F can be true relative to one context of evaluation and false relative to another. We argue that such a theory does better than any rival approach at capturing all the behaviour of epistemic modals. (shrink)

As Ruben notes, the macrostrategy can allow that the distinction may also be drawn at some micro level, but it insists that descent to the micro level is ...

Two experiments are described that investigate the effects of attention in moderating evaluative conditioning (EC) effects in a picture‐picture paradigm in which previously discovered experimental artifacts (e.g., Field & Davey, 1999 Field, AP, and Davey, GCL, (1999). Reevaluating evaluative conditioning: A nonassociative explanation of conditioning effects in the visual evaluative conditioning paradigm, Journal of Experimental Psychology. Animal Behavior Processes 25 ((1999)), pp. 211–224.[Crossref], [PubMed], [Web of Science ®], [Google Scholar]) were overcome by counterbalancing conditioned stimuli (CSs) and unconditioned stimuli (USs) (...) across participants. Conditioned responses for individuals who had attention enhanced were compared against a control group and groups for whom attention was impeded using a distracter task. In a second experiment the effects of attention were dissociated from those of contingency awareness by using backward‐masked US presentations. The results of these experiments indicate that although associative EC effects may not be disrupted by a lack of contingency awareness, attention is an important factor in establishing conditioning. These results shed some light onto the possible boundary conditions that could explain past inconsistencies in obtaining EC effects in the visual paradigm. (shrink)

In the middle of the ninth century, Isho‘dad of Merv, the East Syrian bishop of Haditha wrote extensive commentaries on all of the books of the Old and the New Testament, using a variety of sources, not only exegetical ones. This article offers the first (partial) reconstruction of Isho‘dad’s Syriac chronographic source, on the basis of a comparison of material in his commentaries on the Old Testament with two Syrian Orthodox chronicles (Michael the Syrian and the Anonymous Chronicle of 1234) (...) and one Arabic Melkite chronicle (Agapius of Mabbug). It will be argued that this Syriac chronicle was written between the middle of the sixth century and the middle of the ninth century and was influenced by a variety of sources, most notably the Syriac Chronicle of Andronicus and the Chronicle Epitome of John Malalas. (shrink)

This essay reflects on the ability of neuroscientific data to be of personal value and to enrich our lives by offering insight into our capacities for self management and choice. The theory of cognitive dualism proposed by Roger Scruton seeks to preserve rationality and allow for freedom of will, but he appears reluctant to engage with the data accruing in neural studies. I contrast this approach with a Thomistic hylomorphic approach to the philosophy of mind that is founded on participation (...) in being. It offers the potential to draw on neurobiological knowledge for insights into rationality, motivation, and eudaimonia. The role of neural development in eudaimonia is considered and the benefits of a Thomistic hylomorphism founded on participation in esse are summarized. (shrink)

Arguments for the ‘extended mind’ seem to suggest the possibility of ‘extended knowers’—agents whose specifically epistemic virtues may depend on systems whose boundaries are not those of the brain or the biological organism. Recent discussions of this possibility invoke insights from virtue epistemology, according to which knowledge is the result of the application of some kind of cognitive skill or ability on the part of the agent. In this paper, I argue that there is a fundamental tension in these appeals (...) to cognitive virtue. The tension centers on the presence of a tool or technology as an object of awareness, hence something apt for epistemically virtuous engagement on the part of the agent. I highlight a dilemma: the better something looks as a non-biological element of the machinery of mind, the worse it looks as a potential object of any specifically epistemic skill or ability on the part of the agent. The tension is resolved, I argue, by thinking about sub-personal forms of epistemic hygiene. I examine one such form , and show how it sits neatly with the vision of the extended mind. I end by asking what we can still reasonably expect, given this more complex sub-personal story, by way of agent-level cognitive hygiene. (shrink)

Hegel does not directly examine the legitimacy of capital punishment in the Philosophy of Right. There is an implication of vengeful death in the endless retribution that characterizes abstract right, and also in the potential carnage that can result from non-compliance with the prevailing order in a society based upon morality; but in terms of just punishment, which can only occur in the state, Hegel is silent on the matter of the death penalty. It is mentioned occasionally in the “additions” (...) to the main text provided by the lecture notes of Hegel’s students, wherein Hegel reportedly speaks of the necessity of the death penalty for murder, and the undesirability of capital punishment for most lesser crimes. Although the conclusions of this paper do not contradict either of these representations of Hegel’s opinion about capital punishment, the arguments used will not rely on the additions since their authority is not beyond question. Rather, this paper will be concerned only with Hegel’s own pronouncements, which refer directly to the death penalty only twice—and each time in connection to historical treatments of the subject. Both Draco’s “barbarous” insistence that every criminal meet with death, and Beccaria’s arguments against the right of the state to employ the death penalty are criticized by Hegel, but the object of criticism in each case is the reasoning behind their respective positions. Nowhere in the main text of the Philosophy of Right does Hegel explicitly endorse or deny the legitimacy of capital punishment. (shrink)

This book offers an overview of theories of the Concept, drawing on the philosopher Hegel and the Soviet psychologist Lev Vygotsky. Concepts are shown to be both units of the mind and units of a cultural formation.

Firewalls are an important tool in the assurance of network security. Packet filtering firewalls are configured by providing a set of rules that identify how to handle individual data packets that arrive at the firewall. In large firewall configurations, conflicts may arise between these rules. Argumentation provides a way of handling conflicts such that their origin is illuminated, and hence can help a system administrator understand the effects of a given configuration. To show how argumentation might help in this domain (...) we examine the use of a system of metalevel argumentation for firewall configuration, showing how it makes conflicts and their origins clear, and showing how different instantiations of a metalevel argumentation system provide alternative ways to resolve conflicts. (shrink)