Diversity Reading List

Introduction: In the late twentieth century, zombies began to play an important role in philosophical discussions about consciousness. But unlike the zombies of Hollywood, philosophical zombies are very much alive - or at least, they would be were they to exist. As philosophers use the term, a zombie is a creature that is microphysically identical to a human being - and thus produces behavior that is indistinguishable from that of a normal human being - but lacks any sort of consciousness in the phenomenal sense. Zombies behave as if they are in pain when you stick them with a pin, and they will report that they are in pain, but they don ' t experience any painful sensations.

Introduction: Physicalism - the claim that everything is physical - has been the dominant position in philosophy of mind since at least the middle of the twentieth century. Nonetheless, physicalism has long been accused of being unable to account satisfactorily for the qualitative or subjective aspect of experience, for example, the reddishness of one ' s visual experience of a ripe tomato or the painfulness of one ' s tactile experience of a sharp object. Many have charged that it is dif? cult to see how these aspects of experience could be accounted for in solely physical terms. Focusing speci? cally on the experi- ence that a bat has when using its sonar, Thomas Nagel formulated this charge in a particularly powerful way. His argument is designed to show that subjective facts about experience, which are essential to it, cannot be captured in the objective language of physicalism. Although most philoso- phers assume that the argument, if successful, would show that physicalism is false, Nagel himself is careful to claim only that we currently lack the conceptual resources to see how physicalism could be true.

Abstract: What is it like to be a bat? This is one of the most famous questions ever asked in the history of consciousness studies. First posed in 1950 it was made famous in a 1974 paper of that name by American philosopher Thomas Nagel. Nagel argued that understanding how mental states can be neurons firing inside the brain is a problem quite unlike understanding how water canbe H2O, or how genes can be DNA. 'Consciousness is what makes the mind-body problem really intractable,' he said (Nagel, 1974: 435; 1979:165), and by consciousness he meant subjectivity. To make this clear he asked 'What is it like to be a bat?'. Do you think that your cat is conscious? Or the birds outside in the street? Perhaps you believe that horses are conscious but not worms, or living creatures but not stones. We shall return to these questions (Chapter 12) but here let's consider what it means to say that another creature is conscious. If you say that the stone is not conscious you probably mean that it has no inner life and no point of view; that there is nothing it is like to be the stone. If you believe that the neighbour's vicious bloodhound, or the beggar you passed inthe subway, is conscious, then you probably mean that they do have a point of view; there is something it is like to be them. As Nagel put it, when we say that another organism is conscious we mean that 'there is something it is like to be that organism . . . something it is like for the organism' (1974: 436); 'the essence of the belief that bats have experience is that there is something that it is like to be a bat' (ibid.: 438). This is probably the closest we can come to a definition of consciousness - that consciousness is subjectivity, or 'what it is like to be . . .'. Here we must be careful with the phrase 'what it is like . . .'. Unfortunately there are at least two meanings in English. We might say 'this ice cream tastes like rubber' or 'lying on a beach in the sun is like heaven'. In this case we are comparing things, making analogies, or saying what they resemble. This is not what Nagel meant. The other meaning is found in such questions as: What is it like to work at McDonald's? What is it like to be able to improvise fugues at the keyboard?...to be someone inconceivably more intelligent than yourself?...to be a molecule, a microbe, a mosquito, an ant, or an ant colony? (Hofstadter and Dennett, (1981: 404-5), pose many more such provocative questions.) In other words, what is it like from the inside? Now, imagine being a bat. A bat's experience must be very different from that of a human. For a start the bat's sensory systems are quite different, which is why Nagel chose the bat for his famous question. Bats' brains, lives and sensesare well understood (Akins, 1993; Dawkins, 1986). Most use either sound or ultrasound for echolocation. That is, they detect objects by emitting rapid high-pitched clicks that bounce off any objects in the vicinity and then measuring the time taken for the echo to return. Natural selection has found ingenious solutions to the many interesting problems posed by echolocation. Some bats cruise around emitting clicks quite slowly so as not to waste energy, but then when they are homing in on prey or approaching a potential danger, they speed up. Many have mechanisms that protect their ears from the loud blastof each click and then open them to receive the faint echo. Some use the Doppler shift to work out their speed relative to prey or other objects. Others sort out the mixed-up echoes from different objects by emitting downward-swooping sounds. The echoes from distant objects take longer to come back and therefore sound higher than the echoes from nearer objects. In this way we can imagine that a whole bat world is built up in which higher sounds mean distant objects and lower sounds mean nearer objects. What would this be like? According to Oxford biologist Richard Dawkins (1986; see Profile, Chapter 10), it might be like seeing is for us. We humans do not know, or care, that colour is related to wavelength or that motion detection is carried out in the visual cortex. We just see the objects out there in depth and colour. Similarly the bat would just perceive the objects out there in depth, and perhaps even in some batty, sonar, version of colour. Living in this constructed world would be what it is like to be the bat. But can we ever know what it would really be like for the bat? As Nagel pointed out, the question is not answered by trying to imagine that you are a bat. This will not do. It is no good hanging upside down in a darkened room, making little clicks with your tongue and flapping your arms like wings. Perhaps if you could magically be transformed into a bat you would know. But even this won't do. For if you were a bat, the bat in question would notbe an ordinary bat - what with having your memories and your interest inconsciousness. But if you became an ordinary bat then this bat would have no understanding of English, no ability to ask questions about consciousness, and could not tell us what it was like. So we cannot know what it is like to be a bat even if we believe that there is something it is like to be a bat. Nagel's question clarifies the central meaning of the term 'consciousness'. It is what the American philosopher Ned Block (1995) calls 'phenomenal consciousness' or phenomenality. He explains that 'Phenomenal consciousness isexperience; what makes a state phenomenally conscious is that there is something 'it is like' to be in that state.' He distinguishes this from 'access consciousness', which is 'availability for use in reasoning and rationally guiding speech and action' (Block, 1995: 227). We will return to this distinction (Chapter 18), and consider issues to do with availability, but 'phenomenal consciousness' is what this book is all about. So what is it like to be you now? Everything I have said so far implies that there is, uncontroversially, something it is like to be you now - that the problems only begin when you start asking about what it is like to be someone orsomething else. But is this right? A thoroughly sceptical approach would meanquestioning even this. I urge you to do this chapter's 'Practice' and become a little more familiar with what it is like to be you.

Abstract: In (Chalmers, 1996), David Chalmers influentially argued that if physicalism is true then every positive truth is a priori entailed by the full physical description—this is called 'the a priori entailment thesis'. However, ascriptions of phenomenal consciousness are not so entailed and thus he concludes that Physicalism is false. As he puts it, 'zombies' are metaphysically possible. I attempt to show that this argument is refuted by considering an analogous argument in the mouth of a zombie. The conclusion of this argument is false so one of the premises is false. I argue at length that this shows that the original conceivability argument also has a false premise and so is invalid.

Publisher's Note: This challenging study places fiction squarely at the centre of the discussion of metaphysics. Philosophers have traditionally treated fiction as involving a set of narrow problems in logic or the philosophy of language. By contrast Amie Thomasson argues that fiction has far-reaching implications for central problems of metaphysics. The book develops an 'artifactual' theory of fiction, whereby fictional characters are abstract artifacts as ordinary as laws or symphonies or works of literature. By understanding fictional characters we come to understand how other cultural and social objects are established on the basis of the independent physical world and the mental states of human beings.

Abstract: This article offers a guide to a key area on metaphysics and covers the fundamental questions asked in metaphysics - areas that have continued to attract interest historically as well as topics that have emerged more recently as active areas of research. It is especially focused on research methods and problems.

Abstract: The Explanatory Gap' is a label for the idea that we cannot explain consciousness in terms of brain activity. There are many different formulations of the explanatory gap, but all discussion about it assumes that there is only one gap, which consists of the absence of a deductive explanation. This assumption is mistaken. In this paper, I show that the position that deductive explanation is privileged in this case is unmotivated. I argue that whether or not there is an explanatory gap depends on the kind of explanation in question, so there is no single, unified explanatory gap but only the absence and (perhaps) presence of different sorts of explanation.

Abstract: We apply Carol Gilligan's distinction between a "male" mode of moral reasoning, focussed on justice, and a "female" mode, focussed on caring, to the reading of literature. Martha Nussbaum suggests that certain novels are works of moral philosophy. We argue that what Nussbaum sees as the special ethical contribution of such novels is in fact training in the stereotypically female mode of moral concern. We show this kind of training is appropriate to all readers of these novels, not just to women. Finally, we explore what else is involved in distinctively feminist readings of traditional novels

Abstract: Representationalist solutions to the qualia problem are motivated by two fundamental ideas: first, that having an experience consists in tokening a mental representation; second, that all one is aware of in having an experience is the intentional content of that representation. In particular, one is not aware of any intrinsic features of the representational vehicle itself. For example, when you visually experience a red object, you are aware only of the redness of the object, not any redness or red quale of your experience. You are aware of outer red without being aware of inner red. According to the representationalist, the phenomenal character of your experience is just (an element of) the intentional content of your representation. In effect, inner red just is outer red. For her part, the defender of qualia, or anyway the defender of qualia who will figure in the present discussion, grants that experiencing a red object involves mentally representing it, and that when you have such an experience you are aware of its intentional content. But she denies that that intentional content exhausts your awareness. The defender of qualia (call her 'Quale') contends that your mental vehicle is itself mentally or phenomenally red, and that in addition to the outer redness of the object, you are aware of this inner redness, the intrinsic phenomenal character of your representational vehicle. Thus, contra the representationalist (call him 'Rep'), you are not aware of the content of your representation without being aware of its intrinsic features

Publisher’s Note:
Overview: Not focused on any one Upanishad in particular, it conveys the spirit in which the Upanishads were written and provides a short overview of their Metaphysics, Ethics and Epistemology.