I argue that at least one of the following propositions is true: the human species is very likely to become extinct before reaching a ’posthuman’ stage; any posthuman civilization is extremely unlikely to run a significant number of simulations of its evolutionary history ; we are almost certainly living in a computer simulation. It follows that the belief that there is a significant chance that we shall one day become posthumans who run ancestor-simulations is false, unless we are currently living (...) in a simulation. I discuss some consequences of this result. (shrink)

What is it for a person to have style? Philosophers working in action theory, ethics, and aesthetics are surprisingly quiet on this question. I begin by considering whether theories of artistic style shed any light on it. Many philosophers, artists, and art historians are attracted to some version of the view that artistic style is the expression of personality. I clarify this view and argue that it is implausible for both artistic style and, suitably modified, personal style. In fact, both (...) theories of style crack along the same line, which suggests that they can indeed be mutually illuminating. I articulate and defend a view of personal style according to which, roughly, having style is a matter of expressing one’s ideals. I show how this illuminates the widely neglected value of personal style and propose a new, analogous theory of individual artistic style: artistic style is the expression of the ideals the artist has for her art. (shrink)

Probabilistic methods are providing new explanatory approaches to fundamental cognitive science questions of how humans structure, process and acquire language. This review examines probabilistic models defined over traditional symbolic structures. Language comprehension and production involve probabilistic inference in such models; and acquisition involves choosing the best model, given innate constraints and linguistic and other input. Probabilistic models can account for the learning and processing of language, while maintaining the sophistication of symbolic models. A recent burgeoning of theoretical developments and online (...) corpus creation has enabled large models to be tested, revealing probabilistic constraints in processing, undermining acquisition arguments based on a perceived poverty of the stimulus, and suggesting fruitful links with probabilistic theories of categorization and ambiguity resolution in perception. (shrink)

The essentialist approach to word meaning has been used to undermine the fundamental assumptions of the cognitive psychology of concepts. Essentialism assumes that a word refers to a natural kind category in virtue of category members possessing essential properties. In support of this thesis, Kripke and Putnam deploy various intuitions concerning word use under circumstances in which discoveries about natural kinds are made. Although some studies employing counterfactual discoveries and related transformations appear to vindicate essentialism, we argue that the intuitions (...) have not been investigated exhaustively. In particular, we argue that discoveries concerning the essential properties of whole categories (rather than simply of particular category members) are critical to the essentialist intuitions. The studies reported here examine such discovery contexts, and demonstrate that words and concepts are not used in accordance with essentialism. The results are, however, consistent with "representational change" views of concepts, which are broadly Fregean in their motivation. We conclude that since essentialism is not vindicated by ordinary word use, it fails to undermine the cognitive psychology of concepts. (shrink)

Because of accelerating technological progress, humankind may be rapidly approaching a critical phase in its career. In addition to well-known threats such as nuclear holocaust, the propects of radically transforming technologies like nanotech systems and machine intelligence present us with unprecedented opportunities and risks. Our future, and whether we will have a future at all, may well be determined by how we deal with these challenges. In the case of radically transforming technologies, a better understanding of the transition dynamics from (...) a human to a "posthuman" society is needed. Of particular importance is to know where the pitfalls are: the ways in which things could go terminally wrong. While we have had long exposure to various personal, local, and endurable global hazards, this paper analyzes a recently emerging category: that of existential risks. These are threats that could case our extinction or destroy the potential of Earth - originating intelligent life. Some of these threats are relatively well known while others, including some of the gravest, have gone almost unrecognized. Existential risks have a cluster of features that make ordinary risk management ineffective. A final section of this paper discusses several ethical and policy implications. A clearer understanding of the threat picture will enable us to formulate better strategies. (shrink)

This book shows how these developments have led researchers to view people's conditional reasoning behaviour more as succesful probabilistic reasoning rather ...

What is artistic style? In the literature one answer to this question has proved influential: the view that artistic style is the expression of personality. In what follows we elaborate upon and evaluatively compare the two most plausible versions of this view with a new proposal—that style is the expression of the artist’s ideals for her art. We proceed by comparing the views’ answers to certain questions we think a theory of individual artistic style should address: Are there limits on (...) what range of features can figure in a style? Can flaws be stylistic? Are there limits on the range of art forms across which a given style can be exhibited? To what extent is a style a kind of unity, and why? What makes style an artistic achievement? Why do we care about style? By considering the different views' answers to these questions we argue that our proposal is a workable theory of individual style and suggest that it fares better on the whole than both versions of the influential and widely accepted view. (shrink)

Cognitive scientists have revealed systematic errors in human reasoning. There is disagreement about what these errors indicate about human rationality, but one upshot seems clear: human reasoning does not seem to fit traditional views of human rationality. This concern about rationality has made its way through various fields and has recently caught the attention of philosophers. The concern is that if philosophers are prone to systematic errors in reasoning, then the integrity of philosophy would be threatened. In this paper, I (...) present some of the more famous work in cognitive science that has marshaled this concern. Then I present reasons to think that those with training in philosophy will be less prone to certain systematic errors in reasoning. The suggestion is that if philosophers could be shown to be less prone to such errors, then the worries about the integrity of philosophy could be constrained. Then I present evidence that, according to performance on the CRT (Frederick 2005), those who have benefited from training and selection in philosophy are indeed less prone to one kind of systematic error: irrationally arbitrating between intuitive and reflective responses. Nonetheless, philosophers are not entirely immune to this systematic error, and their proclivity for this error is statistically related to their responses to a variety of philosophical questions. So, while the evidence herein puts constraints on the worries about the integrity of philosophy, it by no means eliminates these worries. The conclusion, then, is that the present evidence offers prima facie reasons to ascribe a mitigated privilege to philosophers' ability to rationally arbitrate between intuitive and reflective responses. (shrink)

We review the various factors that limit adaptation by natural selection. Recent discussion of constraints on selection and, conversely, of the factors that enhance “evolvability”, have concentrated on the kinds of variation that can be produced. Here, we emphasise that adaptation depends on how the various evolutionary processes shape variation in populations. We survey the limits that population genetics places on adaptive evolution, and discuss the relationship between disparate literatures. BioEssays 22:1075–1084, 2000. © 2000 John Wiley & Sons, Inc.

We present a new notion of game equivalence that captures basic powers of interacting players. We provide a representation theorem, a complete logic, and a new game algebra for basic powers. In doing so, we establish connections with imperfect information games and epistemic logic. We also identify some new open problems concerning logic and games.

This article aims to do two things. The first of these is to introduce the concept of reflexive body techniques into the debate on body modification/maintenance. The value of the concept in relation to this debate, in part, is that it ensures that we conceive of the body as both a subject and an object, modifier and modified, and that we thereby avoid the trap of conceptualizing modification in dualistic (mind/body or body/society) terms. Second, the article seeks to explore the (...) pattern of distribution of practices of modification (conceived as reflexive body techniques) through society and to reflect upon the potential usefulness of multi-dimensional scaling as a tool for doing this. This aim is related to the first aim as it is argued that the concept of reflexive body techniques serves to identify and anchor practices ofmodification in a way that is amenable to both quantitative and qualitative forms of analysis, as well as theoretical investigation. (shrink)

Human cognition requires coping with a complex and uncertain world. This suggests that dealing with uncertainty may be the central challenge for human reasoning. In Bayesian Rationality we argue that probability theory, the calculus of uncertainty, is the right framework in which to understand everyday reasoning. We also argue that probability theory explains behavior, even on experimental tasks that have been designed to probe people's logical reasoning abilities. Most commentators agree on the centrality of uncertainty; some suggest that there is (...) a residual role for logic in understanding reasoning; and others put forward alternative formalisms for uncertain reasoning, or raise specific technical, methodological, or empirical challenges. In responding to these points, we aim to clarify the scope and limits of probability and logic in cognitive science; explore the meaning of the explanation of cognition; and re-evaluate the empirical case for Bayesian rationality. (shrink)

We present a new notion of game equivalence that captures basic powers of interacting players. We provide a representation theorem, a complete logic, and a new game algebra for basic powers. In doing so, we establish connections with imperfect information games and epistemic logic. We also identify some new open problems concerning logic and games.

The aesthetic realist interprets many descriptions of music as metaphorical descriptions of aesthetic properties of music. I argue that aesthetic realism requires that nonaesthetic words are used to express both aesthetic and nonaesthetic concepts. But having distinguished the concepts, some plausible account must be given of their relation. A causal account of the relation between the possession of aesthetic and nonaesthetic concepts provides this, since the concepts are distinct but connected. I explore and defend this account. I consider the conditions (...) of aesthetic concept possession and also the appropriation of nonaesthetic words in aesthetic descriptions. (shrink)

Drawing upon ethnographic data, this article analyses 'vocabularies of motive' amongst individuals who work out at a private health club in the Greater Manchester area (UK). The article draws a distinction between motives for starting at a gym and motives for continuing, and analyses each separately. It also seeks to draw out, in the latter case, the many motives which conflict with a stereotypical view of 'working out' found in some academic accounts. Working out is not only an instrumental means (...) of cultivating valued bodily attributes, it is argued, nor are its attractions necessarily all 'bodily' (at least narrowly defined) in nature. (shrink)

Stable logics are modal logics characterized by a class of frames closed under relation preserving images. These logics admit all filtrations. Since many basic modal systems such as K4 and S4 are not stable, we introduce the more general concept of an M-stable logic, where M is an arbitrary normal modal logic that admits some filtration. Of course, M can be chosen to be K4 or S4. We give several characterizations of M-stable logics. We prove that there are continuum many (...) S4-stable logics and continuum many K4-stable logics between K4 and S4. We axiomatize K4-stable and S4-stable logics by means of stable formulas and discuss the connection between S4-stable logics and stable superintuitionistic logics. We conclude the article with many examples (and nonexamples) of stable, K4-stable, and S4-stable logics and provide their axiomatization in terms of stable rules and formulas. (shrink)

Millikan's nondescriptionist approach applies an account of meaning to concepts in terms of designation. The essentialism that provides the principal grounds for rigid designation, however, receives no empirical support from concepts. Whatever the grounding, this view not only faces the problems of rigid designation in theories of meaning, it also calls for a role for pragmatics more consonant with descriptionist theories of concepts.

What's aesthetically interesting or significant about electronic dance music? The first answer I consider here is that dancing is significant. Using literature on groove, dance and expression, I sketch an account of club dancing as expressive activity. I next consider the aesthetic achievements of DJs, introducing two conceptions of what they do. These thoughts lead to discussions of dance music's ontology. I suggest that the fundamental work of dance music is the mix and that mixes require their own ontology, distinct (...) from ontologies of recordings or improvisations. Finally, I explore two aspects of dance music's aesthetics: its connection with repetition and repetitiveness and its use of electronic sounds and technologies. I conclude with some speculative thoughts about the unique relation dance music bears to repetition and electronics. This article is Part II of two; in Part I, I consider the problem of defining dance music, via the framing question of authenticity. I explore history, genre, scenes and subcultures, and blackness. (shrink)

In this volume, Zangwill develops a view of the nature of music and our experience of music that foregrounds the aesthetic properties of music. He focuses on metaphysical issues about aesthetic properties of music, psychological issues about the nature of musical experience, and philosophy of language issues about the metaphorical nature of aesthetic descriptions of music. Among the innovations of this book, Zangwill addresses the limits of literal description, generally, and in the aesthetic case. He also explores the social and (...) political issues about musical listening, which tend to be addressed more in continental traditions. (shrink)

This article describes and analyses the social network of key actors involved in the `inner circle' of the early UK punk movement in London. It is argued that the network and its structural properties are important if we wish to explain both the emergence of the movement and certain key conflicts within it. The article is empirically based and utilizes the methods of formal social network analysis. A further argument of the paper is that the concept of networks and these (...) formal methods for analysing them are both important for a sociological analysis of culture and cultural movements in particular. (shrink)

Electronic dance music has much about it to interest philosophers. In this article, I explore facets of dance music cultures, using the issue of authenticity as a framing question. The problem of sorting real or authentic dance music from mainstream or commercial clubbing can be treated as a matter of history and genre-definition; as a matter of defining scenes or subcultures; and as a matter of blackness. In each case, electronic dance music, and critical discourse surrounding it, offers fresh illumination (...) of aesthetic questions. I briefly characterise the main genres of dance music, match conversations about the hardcore continuum with philosophers’ accounts of genre, survey sociologists’ ways of thinking about cultures and their connections to taste and personal identity, and link criticisms that dance music now lacks blackness to conceptions of black aesthetics. This article is Part I of two; Part II focusses on dancers, DJs, and the aesthetics and ontology of dance music itself. Video abstract. (shrink)

This the final volume of a five volume edited work on the history 0f western philosophy of religion. It contains chapters on James, Bergson, Dewey, Whitehead, Hartshorne, Russell, Scheler, Buber, Maritain, Jaspers, Tillich, Barth, Wittgenstein, Heidegger, Levinas, Weil, Ayer, Alston, Hick, Daly, Derrida, Plantinga, and Swinburne.

We consider the question of the manner of the internalization of the geometry and topology of physical space in the mind, both the mechanism of internalization and precisely what structures are internalized. Though we will not argue for the point here, we agree with the long tradition which holds that an understanding of this issue is crucial for addressing many metaphysical and epistemological questions concerning space.

In his theory of the event, Alain Badiou argues that the realm of politics is particularly important. Drawing to an extent on Marx, Lenin and Mao, he argues that true politics is revolutionary, or at least 'eventmental'. Badiou's political thought places great emphasis on the role of the agent of change — the subject — but he argues controversially that subjecthood in politics as well as in other domains comes only after the event has taken place, leaving the potential subject (...) in a highly passive position before the event has taken place. He has relinquished some but not all of Marx's materialist and historical approach, in favour of a more idealist approach influenced in part by Plato, with the effect that his theory of politics is rather disjointed. Badiou's uneasy blend of idealism and materialism means that he has at times highly unorthodox things to say about the notion of democracy and has uneven positions regarding both parliamentary politics and political activism. A lonely, committed voice in contemporary France, Badiou's theory of politics nevertheless offers a rare opportunity to engage with a thinker who is attempting to offer a new philosophy of praxis. (shrink)