In that book I had two different, though not unrelated aims. The first chapter was concerned with traditional scepticisms about, e.g., the external world and induction. In common with Hume and Wittgenstein (and even Heidegger) I argued that the attempt to combat such doubts by rational argument was misguided: for we are dealing here with the presuppositions, the framework, of all human thought and enquiry. In the other chapters my target was different. It was that species of naturalism which tended (...) to discredit, or somehow to reduce to more scientifically acceptable, physicalistic terms, whole regions of ordinary human thought, language, and experience -- in particular the regions of moral discourse, of the subjectively mental and of the intensional. Here my reaction, as well as my target, was different. I did not merely stress the inescapability of the natural or common human standpoint from which we normally take for granted all that is called in question by scientistic naturalism. I also allowed the latter its own validity from its own limited standpoint.2 Philosophical scepticism and scientistic naturalism represent two types of challenge to ‘central features of our ordinary thought and talk’.3 The overall aim of Scepticism and Naturalism is to respond to these challenges and thereby to vindicate what Strawson refers to elsewhere as ‘our natural metaphysics’. (shrink)

In describing and classifying things we often rely on their modal characteristics. We will in general not have a satisfactory account of the nature and character of an object, unless we specify at least partly how the thing might be or cannot be, and also how it might have been or could not have been. In his contribution to the Second Jerusalem Philosophical Encounter,1 Strawson addressed the issue of how to understand such ascriptions of modal characteristics. Although his paper is (...) terse and provocative, and develops an intriguing account of modal predications, it has never received much attention in the philosophical literature. Recently, the issues dealt with in Strawson’s paper have become the subject of a widespread debate. Hence, we think it worthwhile to put Strawson’s account under closer scrutiny. In what follows, we first discuss his account of present tense ‘might’-statements, then his account of past perfect ‘might’-statements, and finally some essentialist remarks that he makes in his paper. That the discussion will be rather critical for the most part (though not exclusively so) should not belie the originality and inherent value of his pioneering approach. (shrink)

University Abstract Philosophers have sought to improve upon the logical empiricists’ model of scientific reduction. While opportunities for integration between the cognitive and the neural sciences have increased, most philosophers, appealing to the multiple realizability of mental states and the irreducibility of consciousness, object to psychoneural reduction. New Wave reductionists offer a continuum of comparative goodness of intertheoretic mapping for assessing reductions. Their insistence on a unified view of intertheoretic relations obscures epistemically significant crossscientific relations and engenders dismissive conclusions about (...) psychology. Richer, more sensitive accounts of explanatory pluralism and mechanistic explanation in science advocate multi-level approaches in cross-scientific settings and criticize the distance of the standard philosophical objections from working scientists’ practices and discoveries. The Heuristic Identity Theory, a new, scientifically informed version of the psycho-physical identity theory, incorporates these insights, showing how multiple realizability is an argument for (not against) identities in science and why, therefore, consciousness is not irreducible. (shrink)

in press, Psychonomic Bulletin & Review.

In Moran, D. (ed.): Routledge Companion to Twentieth-Century Philosophy. Routledge, 2008.

1. The Naturalistic Turn in Philosophy of Science 2. The Framework of Mechanistic Explanation: Parts, Operations, and Organization 3. Representing and Reasoning About Mechanisms 4. Mental Mechanisms: Mechanisms that Process Information 5. Discovering Mental Mechanisms 6 . Summary.

FD-Diss., Uppsala: University Printers, 2000 (ix+225 pages).

The defining insight of evolutionary psychology consists of bringing considerations drawn from evolutionary biology to bear on the study of human psychology. So characterized, evolutionary psychology encompasses a large range of views about the nature and evolution of human psychology as well as diverging opinions about the proper method for studying them.¹ In this article, I propose to clarify and evaluate various aspects of evolutionary psychologists’ methodology, with a special focus on their heuristics of discovery—i.e., their methods for developing plausible (...) hypotheses—and their strategies of confirmation—i.e., their methods for providing empirical support for these hypotheses.² I will also evaluate several well-known objections raised against evolutionary psychology. Note that because views about psychology and evolution differ among evolutionary psychologists, I do not pretend to cover every method used in evolutionary psychology.³. (shrink)

Journal of Experimental Social Psychology, 44, 2-9.

PLoS ONE 3(3): e1897. doi:10.1371/journal.pone.

Simple Reduction and Beyond Traditional and New Wave models of reduction in science have not lacked for ambition. Philosophers have presented single models to account for the full range of interesting intertheoretic relations, for scientific progress, and for the unity of science (Nagel, 1961; Oppenheim and Putnam, 1958). Early critics attacked the logical empiricists' proposals about the character of intertheoretic connections (Feyerabend, 1962; Kuhn, 1970). New Wave reductionists have similarly argued that various intertheoretic relations fall at different points on a (...) continuum of goodness-of-intertheoretic-mapping. Still, whatever their differences with the logical empiricists, New Wave reductionists have retained traditional aspirations for a single, comprehensive model of reduction that will make sense of the wide range of intertheoretic relations, of progressive scientific change, and of how the various sciences hang together (Hooker, 1981; Churchland and Churchland, 1990; Bickle, 1998). Both logical empiricists and their New Wave successors proffer such unified, multi-purpose models. Regardless of the field, multi-purpose tools typically sacrifice precision for versatility. Recent analyses of mechanistic explanation have helped to reveal that these models of scientific reduction are no exceptions to this rule, and the cost of sacrificing precision is one that the mechanists are unwilling to pay. Traditional and New Wave reductionists manifest allegiances (1) to the (virtually exclusive) analysis of theories and intertheoretic relations and (2) to conceptions of explanatory levels in science rooted in considerations pertaining to the size of and the mereological relations between the sciences' objects of study. (Discussions of both explanatory levels and mereological relations follow in subsequent sections.) By contrast, advocates of mechanistic analysis offer detailed accounts of particular systems' functioning that survey their components, their operations, and the larger systems to which they contribute (Bechtel and Richardson, 1993; Glennan, 1996; Machamer, Darden and Craver, 2000; Craver, 2001; Bechtel, 2006).. (shrink)

with Thomas F. Gordon and Henry Prakken. Artificial Intelligence, forthcoming. [Preprint posted.].

Journal of Philosophical Logic 34, 97-119, 2005.

Philosophical Books 46, no. 1 (2005): 1-3.

Routledge (New Media and Cyberculture Series), July 2007.

Cognitive enhancements in the context of converging technologies. [Annals of the New York Academy of Sciences, Vol. 1093, pp. 201-207] [with Anders Sandberg] [pdf].

in Encyclopedia of Consciousness, ed. William P. Banks, Amsterdam: Elsevier, forthcoming in 2009.

Philippa Foot’s Natural Goodness is among the most beautiful and moving works of moral philosophy yet produced in the analytic tradition. It is so much an integral whole that it will seem barbaric to do as I propose briefly to do, and put it to the scalpel. But Natural Goodness propounds a complex theory with many levels or strata, some of which even the author fails completely to distinguish. I will distinguish three strata, each depending logically on the one that (...) comes before. I will call them respectively logical Footianism, local Footianism and substantive Footianism. My purpose in making these distinctions is simply to advance discussion: I believe that objections to Natural Goodness generally confuse these different dimensions of the doctrine, and that the author to some extent aids this confusion. (shrink)

of (from Stanford Encyclopedia of Philosophy) forthcoming in Social Neuroscience. [nearly final draft in .pdf] An empirical investigation of moral judgment in autism.

We consider the following signaling game. Nature plays first from the set {1, 2}. Player 1 (the Sender) sees this and plays from the set {A, B}. Player 2 (the Receiver) sees only Player 1’s play and plays from the set {1, 2}. Both players win if Player 2’s play equals Nature’s play and lose otherwise. Players are told whether they have won or lost, and the game is repeated. An urn scheme for learning coordination in this game is as (...) follows. Each node of the desicion tree for Players 1 and 2 contains an urn with balls of two colors for the two possible decisions. Players make decisions by drawing from the appropriate urns. After a win, each ball that was drawn is reinforced by adding another of the same color to the urn. A number of equilibria are possible for this game other than the optimal ones. However, we show that the urn scheme achieves asymptotically optimal coordination. (shrink)

The Linguistic Review 24, 347-401 (2007).

essay on Robert Brandom, Making it Explicit.

Though the “internal point of view” is perhaps H.L.A. Hart’s greatestcontribution to legal theory, this concept is also often and easily misunderstood. This is unfortunate, not only because these misreadings distort Hart’s theory, but, more importantly, because they prevent us from appreciating the infirmities of sanction-centered theories of law and the compelling reasons why they ought to be rejected. In this paper, I try to address some of these confusions. What, exactly, is the internal point of view? What role (or (...) roles) does it play in Hart’s theory? And how does an adequate appreciation for the centrality of the internal point of view lead to the rejection of sanction-centered theories? (shrink)

In Jacobsen, M.H. (ed.): Sociologies of the Unnoticed. Palgrave/Macmillan, 2008.

in: Henk ten Have (ed.), Nanotechnology: Science, Ethics and Policy Issues, Paris (UNESCO Series in Ethics of Science and Technology), 2006 (forthcoming).

By any reasonable standard of assessment, it is clear that human beings lead lives of wildly varying quality. People who live in different societies or belong to different social classes often differ greatly in their life expectancy, material resources, political rights and personal freedoms, and levels of nutrition and health, as well as in their access to education and medical care and their vulnerability to violence and assault. At the extremes, at least, these differences are normally accompanied by great differences (...) in the range of options people have available to them, in their prospects of achieving their aims, and in their sense of satisfaction with their own lives. Whereas many people in many countries enjoy a high level of prosperity and material comfort, and have a reasonable chance of achieving a significant measure of personal fulfillment over the course of their lives, there are many others who can look forward to little more than a miserable life and an early death. Although great progress has been made in combating the worst forms of poverty in recent decades, there continue to be people who live in conditions of extreme deprivation and malnutrition; people whose lack of medical care leaves them defenseless against infection and disease; people who have never received a formal education, have no political.. (shrink)

Contemporary literature in philosophy of science has begun to emphasize the practice of modeling, which differs in important respects from other forms of representation and analysis central to standard philosophical accounts. This literature has stressed the constructed nature of models, their autonomy, and the utility of their high degrees of idealization. What this new literature about modeling lacks, however, is a comprehensive account of the models that figure in to the practice of modeling. This paper offers a new account of (...) both concrete and mathematical models, with special emphasis on the intentions of theorists, which are necessary for evaluating the model-world relationship during the practice of modeling. Although mathematical models form the basis of most of contemporary modeling, my discussion begins with more traditional, concrete models such as the San Francisco Bay model. (shrink)