Gravitational interactions allowed astronomers to conclude that dark matter rings all luminous galaxies in gigantic halos, but this only accounts for a fraction of the total mass of dark matter believed to exist. Where is the rest? We hypothesize that some of it resides in dark galaxies, pure dark matter halos that either never possessed or have totally lost their baryonic matter. This article explores methodological challenges that arise because of the nature of observation in astrophysics and examines how the (...) blend of observation, simulation, and theory we call the Observing the Invisible approach might make detecting such dark objects possible. (shrink)

THE PROBLEM OP KNOWLEDGE l CONCEPTIONS OF KNOWLEDGE An immediate difficulty which faces any discussion of the present kind is that there are so many ...

Although science was once seen as the product of individual great men working in isolation, we now realize that, like any other creative activity, science is a highly social enterprise, influenced in subtle as well as obvious ways by the wider culture and values of its time. Scientific Knowledge is the first introduction to social studies of scientific knowledge. The authors, all noted for their contributions to science studies, have organized this book so that each chapter examines a key step (...) in the process of doing science. Using case studies from cognitive science, physics, and biology to illustrate their descriptions and applications of the social study of science, they show how this approach provides a crucial perspective on how science is actually done. Scientific Knowledge will be of interest not only to those engaged in science studies, but also to anyone interested in the practice of science. (shrink)

The appeal of materialism lies precisely in this, in its claim to be natural metaphysics within the bounds of science. That a doctrine which promises to gratify our ambition (to know the noumenal) and our caution (not to be unscientific) should have great appeal is hardly something to be wondered at. (Putnam (1983), p.210) Materialism says that all facts, in particular all mental facts, obtain in virtue of the spatio- temporal distribution, and properties, of matter. It was, as Putnam says, (...) “metaphysics within the bounds of science”, but only so long as science was thought to say that the world is made out of matter.1 In this century physicists have learned that there is more in the world than matter and, in any case, matter isn’t quite what it seemed to be. For this reason many philosophers who think that metaphysics should be informed by science advocate physicalism in place of materialism. Physicalism claims that all facts obtain in virtue of the distribution of the fundamental entities and properties –whatever they turn out to be- of completed fundamental physics. Later I will discuss a more precise formulation. But not all contemporary philosophers embrace physicalism. Some- and though a minority not a small or un-influential one- think that physicalism is rather the metaphysics for an unjustified scientism; i.e. it is scientistic metaphysics. Those among them that think that physicalism can be clearly formulated think that it characterizes a. (shrink)

Can we directly experience change? Although some philosophers have denied it, the phenomenological evidence is unambiguous: we can, and do. But how is this possible? What structures or features of consciousness render such experience possible? A variety of very different answers to this question have been proposed, answers which have very different implications for the nature of consciousness itself. In this brief survey no attempt is made to engage with the often complex (and sometimes obscure) literature on this topic. Instead, (...) a largely schematic examination of the main options is conducted, with a view to determining the most promising avenues for further investigation. (shrink)

We can anticipate what is yet to happen, remember what has already happened, but our immediate experience is confined to the present, the here and now. So much seems common sense. So much so that it is no surprise to see Thomas Reid, that pre-eminent champion of common sense in philosophy, advocating precisely this position.

Mentalistic (or Lockean) accounts of personal identity are normally formulated in terms of causal relations between psychological states such as beliefs, memories, and intentions. In this paper we develop an alternative (but still Lockean) account of personal identity, based on phenomenal relations between experiences. We begin by examining a notorious puzzle case due to Bernard Williams, and extract two lessons from it: first, that Williams's puzzle can be defused by distinguishing between the psychological and phenomenal approaches, second, that so far (...) as personal identity is concerned, it is phenomenal rather than psychological continuity that matters. We then consider different ways in which the phenomenal approach may be developed, and respond to a number of objections. That with which the consciousness of this present thinking thing can join itself, makes the same person, and is one self with it, and with nothing else; and so attributes to itself and owns all the actions of that thing, as its own, as far as that consciousness reaches, and no farther; as every one who reflects will perceive. Locke, Essay Concerning Human Understanding [II.xxvii.17]. (shrink)

Can there be a theory-free experience? And what would be the object of such an experience. Drawing on ideas set out by Husserl in the “Crisis” and in the second book of his “Ideas”, the paper presents answers to these questions in such a way as to provide a systematic survey of the content and ontology of common sense. In the second part of the paper Husserl’s ideas on the relationship between the common-sense world (what he called the ‘life-world’) and (...) the world of physical theory are subjected to a critical evaluation. The relation of Husserl’s ideas to current work in folk psychology and naive physics and to the direct realism of J. J. Gibson are also treated. (shrink)

Consciousness exists in time, but time is also to be found within consciousness: we are directly aware of both persistence and change, at least over short intervals. On reflection this can seem baffling. How is it possible for us to be immediately aware of phenomena which are not (strictly speaking) present? What must consciousness be like for this to be possible? In "Stream of Consciousness" I argued that influential accounts of phenomenal temporality along the lines developed by Broad and Husserl (...) were fundamentally flawed, and proposed a quite different account: the overlap model. While recognizing that the latter has merits, Gallagher argues that it too is fundamentally flawed; he also takes issue with some of my claims concerning Broad and Husserl. My reply comes in three main parts. I start by clarifying my use of certain terms, in particular realism and anti-realism as applied to theories of phenomenal temporality in general, and the accounts of Broad and Husserl in particular. I then turn to Gallagher’s main criticisms of the overlap theory. Gallagher argues that the theory is sunk by a problem with ongoing contents, that if our experience possessed the structures I ascribe to it, we would be aware of contents as having longer durations than is actually the case. I suggest otherwise: the version of the overlap theory which is afflicted by this difficulty is not the version I put forward, as becomes clear when two distinct forms of overlap are distinguished. Gallagher is also concerned that the theory lacks phenomenological grounding, and has difficulties with experiential holism. The latter worry, I argue, is completely misplaced. While the former has more warrant, it too is rooted in a misconception: the overlap theory was intended only to provide an account of the most basic sensory components of our short-term experience of temporality, and can easily be expanded to accommodate other aspects. I supply a sketch an augmented theory to back up this claim. I conclude with an assessment of the intentional account of time-consciousness Gallagher ascribes to Husserl. A meaning-based account of this kind is incapable of accounting for experienced sensory continuity, or so I argue. I also suggest that both Broad and Husserl may have had leanings towards the Simple Conception of consciousness. -/- . (shrink)

For as long as there have been markets, there have been complaints about market motives. For much of this history, the two sides have talked past one another. Optimists about markets have mostly addressed other optimists, and failed to take seriously the kinds of relational values that might be at stake and the range of possible alternatives to market-based production. Pessimists about markets have mostly addressed other pessimists, and failed to take seriously the full range of market-involving economic structures and (...) the different kinds of psychologies compatible with market interactions. Recently, there has been a break-through, on behalf of the optimists. According to the model of exchange as mutual assistance, an exchange can be perceived as a joint activity for mutual benefit - and needn't involve self-directed motives at all. This essay pushes back, on behalf of the market pessimists. The essay develops a contrast between exchange as mutual assistance and an ideal of production as caring solidarity, in which production is a joint activity of caring about one another. This alternative ideal draws on Marxist, socialist, feminist, and Christian traditions, and, in particular, on recent work on care, solidarity, and alienation. These two models – exchange as mutual assistance and production as caring solidarity – share key features, including an emphasis on reasoning from a ‘we-perspective’, on trusting one another, and on resisting a familiar self/other motivational dichotomy. Key differences are developed in detail. The essay concludes by discussing the implications for an economics of caring solidarity, with discussion of the limitations of various market socialist strategies. (shrink)

The first book to focus on the intersection of Western philosophy and the Asian martial arts, _Striking Beauty_ comparatively studies the historical and philosophical traditions of martial arts practice and their ethical value in the modern world. Expanding Western philosophy's global outlook, the book forces a theoretical reckoning with the concerns of Chinese philosophy and the aesthetic and technical dimensions of martial arts practice. _Striking Beauty_ explains the relationship between Asian martial arts and the Chinese philosophical traditions of Confucianism, Buddhism, (...) and Daoism, in addition to Sunzi's _Art of War_. It connects martial arts practice to the Western concepts of mind-body dualism and materialism, sports aesthetics, and the ethics of violence. The work ameliorates Western philosophy's hostility toward the body, emphasizing the pleasure of watching and engaging in martial arts, along with their beauty and the ethical problem of their violence. (shrink)

As is widely appreciated and easily demonstrated, the notion that we are essentially experiential (or conscious) beings has a good deal of appeal; what is less obvious, and more controversial, is whether it is possible to devise a viable account of the self along such lines within the confines of a broadly naturalistic metaphysical framework. There are many avenues to explore, but here I confine myself to outlining the case for one particular approach. I suggest that we should think of (...) ourselves (or our essential cores) as being composed of experience-producing systems, and that such systems belong to the same self when they have the capacity to contribute to unified streams of consciousness. The viability of this proposal rests in turn on a particular conception of the structure of consciousness, both at and over time; this conception is defended in the first part of the paper.. (shrink)

Analytic moral philosophy's strong divide between empirical and normative restricts facts to providing information for the application of norms and does not allow them to confront or challenge norms. So any genuine attempt to incorporate experience and empirical research into bioethics – to give the empirical more than the status of mere 'descriptive ethics'– must make a sharp break with the kind of analytic moral philosophy that has dominated contemporary bioethics. Examples from bioethics and science are used to illustrate the (...) problems with the method of application that philosophically prevails in both domains and with the conception of rationality that underlies this method. Cues from how these problems can be handled in science then introduce summaries of richer, more productive naturalist and constructivist accounts of reason and normative knowledge. Liberated by a naturalist approach to ethics and an enlarged conception of rationality, empirical work can be recognized not just as essential to bioethics but also as contributing to normative knowledge. (shrink)

Many moral theories hold individuals responsible for their marginal impact on massive patterns (for instance overall value or equality of opportunity) or for following whichever rules would realise that pattern on the whole. But each of these injunctions is problematic. Intuitively, the first gives individuals responsibility for too much, and the second gives them responsibility for too little. I offer the outlines of a new approach to ethics in collective action contexts. I defend a new collaborative principle that assigns recognisably (...) worthwhile responsibilities to agencies wherever possible. This principle supports a fractal model of moral responsibility, one that favours restructuring divisions of labour in ways that enhance the prospects of recognition at every level of social organisation. This essay is programmatic: starting from a conjecture about the moral significance of recognition, it sketches a new way of approaching a range of collective action problems that combines the importance of the perspectives of both moral and political philosophy. (shrink)

Analytic philosophy in the 20 th century was largely hostile territory to the self as traditionally conceived, and this tradition has been continued in two recent works: Mark Johnston’s Surviving Death , and Galen Strawson’s Selves . I have argued previously that it is perfectly possible to combine a naturalistic worldview with a conception of the self as a subject of experience , a thing whose only essential attribute is a capacity for unifi ed and continuous experience. I argue here (...) that this conception of the self is unthreatened by the otherwise valuable considerations advanced by Johnston and Strawson. Both are inclined to identify selves-at-times with momentary episodes of experience (or centres or ‘arenas’ of consciousness). Both go on to argue, albeit in diff erent ways, that individual selves cannot extend beyond the confi nes of these brief episodes. However, in so doing they give insuffi cient weight to an important phenomenological datum: the continuity of our ordinary experience. When the latter is recognized, and appropriately understood, it provides us with a secure basis upon which a more recognizable conception of the self can be constructed. (shrink)

Elon Musk famously predicted that an artificial intelligence superior to the smartest individual human would arrive by the year 2025. In response, Gary Marcus offered Musk a $1 million bet to the effect that he would be proved wrong. In specifying the conditions of this bet (which Musk did not take) Marcus lists the following ‘tasks that ordinary people can perform’ which, he claimed, AI will not be able to perform by the end of 2025. • Reliably drive a car (...) in a novel location that they haven’t previously encountered, even in the face of unusual circumstances like hand lettered signs, without the assistance of other humans. • Learn to ride a mountain bike off-road through forest trails. • Babysit children in an unfamiliar home and keep them safe. • Tend to the physical and psychological needs of an elderly or infirm person. Each of these tasks involves the application of practical or tacit knowledge, or what is also called ‘knowing how’, which is to say knowledge of a sort that is captured not by means of sentences or propositions or explicit rules, but rather through the expertise demonstrated in human actions. The talk addresses the puzzle that nowhere in the AI literature do we find a discussion of knowing how as a feature of human intelligence. (shrink)

According to one influential view, consciousness has an awareness– content structure: any experience consists of the awareness of some content. I focus on one version of this dualism, and argue that it should be rejected. My principal argument is directed at the status of the supposed contents of aware- ness; I argue that neither of the principal options is tenable, albeit for different reasons. Although the doctrine in question may seem to be supported by the find- ings of researchers in (...) meditative traditions, I question whether this evidence sup- ports the dualism that is my target here. To conclude, I introduce an innocuous mode of pure awareness. (shrink)

The concept of alienation has been used to capture a specific kind of social ill or malady, and one that philosophers have argued is distinctive of life in modern society. I argue that there is a properly epistemic form of alienation present in modern society that arises due to a conflict between the dynamics of group knowledge and traditional requirements on the intellectual virtue of individuals. As group-based knowledge becomes increasingly widespread in modern society, the conflict with virtue becomes more (...) pervasive, and the virtuous become alienated from fundamental epistemic goods. The aim of this paper is to examine this conflict and to highlight that the ‘social turn’ in epistemology is not free from costs. (shrink)

Vulnerability does not mean much for our contemporary morality. It is antithetical to our emphasis on individualism and rationality; it requires that we attend to the body and to our feelings. Yet only by recognizing the depth and breadth of our vulnerability can we affirm our humanity.

In his book The Sensory Order, Hayek anticipates many of the central ideas behind what we now call the connectionist paradigm, and develops on this basis a theory of the workings of the human mind that extends the thinking of Hume and Mach. He shows that the idea of neural networks is can be applied not only in psychology and neurology but also in the sphere of economics. For the mind, from the perspective of The Sensory Order, is a dynamic, (...) relational affair that is in many respects analogous to a market process. The mind, as Hayek puts it, is a 'continuous stream of impulses, the significance of each and every contribution of which is determined by the place in the pattern of channels through which they flow' , so that the flow of representative neural impulses can be compared 'to a stock of capital being nourished by inputs and giving a continuous stream of outputs'. (shrink)

Theories regarding the nature and achievement of personhood in a communitarian context appear to differ in significant respects in the writings of several contemporary African philosophers. Ifeanyi Menkiti seems to regard ethnic differences as sufficient to warrant a national accommodation of multiculturalism with respect to moralities and attendant beliefs. Kwasi Wiredu argues that there is a substantive universal moral principle that undercuts such apparent and relatively superficial diversity. Communitarianism also seems to provide a better framework for explaining how a human (...) being becomes a person than classical liberal theory as enunciated by someone like John Rawls. (shrink)

Applied ethics is at a watershed. In all its domains a gulf between the theory of applied ethics and the practice of applied ethics is now being recognized. In medical ethics, for example, it has been observed that “practicing clinicians often feel let down by bioethics.” The disappointment of clinicians is attributed in part to their own unrealistic expectations but is also said to be a function ofthe extent to which bioethics as a discipline doesn't seem to be in possession (...) of the realities of practice. Bioethicists tend to leave the “facts” of clinical medicine to the doctors; their task is then to apply elegant and compelling arguments drawn from first principles of ethics … to these undisputed and indisputable facts. Unfortunately, when the relationship between clinical medicine and bioethics is conceived … [in this way], the result is a very sterile discourse. (shrink)

This is a revised version of the introductory essay in C. Eschenbach, C. Habel and B. Smith (eds.), Topological Foundations of Cognitive Science, Hamburg: Graduiertenkolleg Kognitionswissenschaft, 1994, the text of a talk delivered at the First International Summer Institute in Cognitive Science in Buffalo in July 1994.

The James‐Husserl thesis is potentially of great importance for the understanding of consciousness. While there may be a good deal of agreement on the need to posit a specious present in some form or other, there is profound disagreement over the correct way of conceiving of it. This chapter surveys some of the more important landmarks in this contentious territory. An account of what is the specious present was elaborated by Brentano in lectures in the 1860s. Brentano fully appreciated the (...) importance to phenomenology – “descriptive psychology” – of understanding how people manage to perceive temporal succession. The Orthogonal and Extensional accounts of people's temporal experience are in two respects very similar. Both sides agree that change, succession, and persistence figure prominently and vividly in people's immediate experience, over short intervals of time; they also agree that this is possible in virtue of an abiding structural feature of people's consciousness. (shrink)

Eichengreen gives an overview of the connections between financial globalization, domestic autonomy, and social justice.

Kripke's Wittgenstein on Rules and Private Language has enlivened recent discussion of Wittgenstein's later philosophy. Yet it is quite possible to disengage his interpretive thesis from its supporting argumentation. Doing so leaves one with an intriguing sceptical argument which Kripke first powerfully advances, then tries to halt. But contrary to the impression his argument may leave, Kripke's solution and the position it concedes to the Sceptic are deeply allied. Here I shall demonstrate their common assumption, and on that basis argue (...) that Kripke's solution begs the Sceptic's question. Furthermore, I believe we can live with the Sceptic. The sceptical argument can be turned into a reasonable contribution to a kind of nominalism in the philosophy of meaning and truth. (shrink)

Today, at the close of the twentieth century, we are confronted by radical changes in the nature of intercultural relations. Those who in previous centuries were unable to venture far from their native villages are today able to visit foreign lands as a matter of course, not only as tourists but also for reasons of commerce or employment. A high degree of intercultural understanding is manifested thereby. But at the same time there arise cultural conflicts and friction. How is that (...) sort of understanding which transcends cultural frontiers possible at all? And what is the root of the different sorts of failure to achieve intercultural communication? These are pressing problems by which mankind as a whole is confronted, and they are problems which philosophers, too, are called upon to face. (shrink)

This chapter examines other ways the Argument from Completeness might be attacked. It identifies two strategies that the realist might deploy in order to avoid the difficulties engendered by the applicability of the Completeness Theorem to the ideal theory. The first is to insist that the theory be cast in some non-first-order language which resists completeness. The second is to allow ideal theory to continue to be rendered in first-order form, but to argue for a semantics in which interpretations take (...) such a new shape that there is no longer any guarantee that any consistent theory has a model in the new sense. (shrink)