Torin Alter

  Zombies make trouble for physicalism. Intuitively, they seem conceivable, and many take this to support their metaphysical possibility – a result that, most agree, would refute physicalism. John Hawthorne (2002) [Philosophical Studies 109, 17–52] and David Braddon-Mitchell (2003) [The Journal of Philosophy 100, 111–135] have developed a novel response to this argument: phenomenal concepts have a conditional structure – they refer to non-physical states if such states exist and otherwise to physical states – and this explains the zombie intuition. I argue that this strategy fails. The considerations Hawthorne and Braddon-Mitchell adduce in support of their analysis in fact do no such thing. Further, their main argument for the analysis is self-defeating: exactly similar reasoning would undermine the view it is meant to establish. Finally, on closer inspection the conditional analysis is incompatible with the zombie intuition. Thus, not only is the analysis incapable of explaining the intuition: the intuition’s plausibility indicates that the analysis is incorrect. I also suggest that the allure of the conditional-analysis strategy may derive from a questionable view about what explaining the intuition would require

Kulvicki’s goal is to give a representationalist account of what it’s like to see a property that is “fully externalist about perceptual representation” (p. 1) and yet accommodates a certain “internalist intuition” (p. 4), which he describes as follows: “something about what it is like to see a property is internally determined, dependent only on the way one is built from the skin in” (p. 3). He illustrates this intuition with an inverted spectrum case and the manifest-image problem. On his view, there’s an apparent conflict between the intuition and representationalism. That’s because, on representationalism, “what it is like to see a shade of color can be exhaustively explained in terms of what is perceptually represented” (p. 1) and, he claims, “all representational facts are externally determined” (p. 4). In short, if what it’s like is partly internally determined, then how can it be fully explained in terms of externally determined representational facts?

Sawyer characterizes the zombie intuition as the claim that zombies are metaphysically possible. That’s not what I mean by the phrase. On my usage, ‘the zombie intuition’ refers to a conceivability claim: the claim that there’s no a priori incoherence in the hypothesis of a minimal physical/functional duplicate of the actual world but without consciousness, i.e., that PT&~Q is conceivable. The claim is the first step of a two-step argument, the second step of which is to infer the corresponding metaphysical possibility. The inference is controversial, but that’s not my concern here. By ‘the zombie intuition’, I mean the first step, which is a claim of conceivability, not metaphysical possibility.

Zombies make trouble for physicalism. Intuitively, they seem conceivable, and many take this to support their metaphysical possibility – a result that, most agree, would refute physicalism. John Hawthorne (2002) [Philosophical Studies 109, 17–52] and David Braddon-Mitchell (2003) [The Journal of Philosophy 100, 111–135] have developed a novel response to this argument: phenomenal concepts have a conditional structure – they refer to non-physical states if such states exist and otherwise to physical states – and this explains the zombie intuition. I argue that this strategy fails. The considerations Hawthorne and Braddon-Mitchell adduce in support of their analysis in fact do no such thing. Further, their main argument for the analysis is self-defeating: exactly similar reasoning would undermine the view it is meant to establish. Finally, on closer inspection the conditional analysis is incompatible with the zombie intuition. Thus, not only is the analysis incapable of explaining the intuition: the intuition’s plausibility indicates that the analysis is incorrect. I also suggest that the allure of the conditional-analysis strategy may derive from a questionable view about what explaining the intuition would require

RÉSUMÉMichael Tye soutient que certains noms sont vagues parce qu'ils réfèrent à des objets vagues. Tye, cependant, ne distingue pas entre référer à un objet vague et référer vaguement. Je suggère, à partir de certaines suppositions, que les noms vagues doivent référer vaguement. Et si les noms vagues doivent référer vaguement, alors l'argument de Tye échoue, puisque des noms qui réfèrent à des objets vagues n'ont pas besoin de référer vaguement. Néanmoins, l'indétermination dans la méta-sémantique de la relation d'être porteur d'un nom peut créer des noms qui réfèrent vaguement. Cette conclusion ne dépend pas de la supposition que les noms ont un contenu descriptif, ni de l'idée que les énoncés d'identitè peuvent être indéterminés quant à leur valeur de vérité.

The God Dialogues is an intriguing and extensive philosophical debate about the existence of God. Engaging and accessible, it covers all the main arguments for and against God's existence, from traditional philosophical "proofs" to arguments that involve the latest developments in biology and physics. Three main characters represent the principal views: Theodore Logan, the theist; Eva Lucien, the atheist; and Gene Sesquois, the agnostic. Their debate takes place during a post-college cross-country road trip during which Gene expresses dismay over his future. He wants to do something meaningful with his life but is at a loss as to how to proceed, despite having just earned a degree in engineering. Gene's quandary precipitates a discussion of the meaning of life and its connection to God's existence. This in turn leads to vigorous debates about morality and theism, evidence for and against God's existence, probability and the rationality of belief, and the relationship between faith and reason. The strongest arguments from all three perspectives are fairly represented. An annotated list of suggested readings directs readers to relevant and helpful primary sources.Assuming no background knowledge, The God Dialogues is ideal for courses in the philosophy of religion, an excellent supplement for introduction to philosophy courses, and a compelling introduction for anyone with an interest in the subject.

Some argue that split-brain cases undermine the thesis that phenomenal consciousness is necessarily unified. This paper defends the phenomenal unity thesis against Michael Tye's (2003 ) version of that argument. Two problems are identified. First, his argument relies on a questionable analysis of the split-brain data. Second, his analysis leads to the view that in experimental situations split-brain patients are not single subjects – a result that would render the analysis harmless to the phenomenal unity thesis.

In The Nature of Consciousness, Mark Rowlands argues that phenomenal properties, which constitute what it is like to have a conscious experience, are “transcendental”: that they are properties by which we are conscious of the nonphenomenal world, but they are not objects of conscious awareness or even linguistic reference. He uses that conclusion to support a mysterian position on the explanatory-gap problem: that it is impossible to understand how phenomenal consciousness arises from physical systems such as the brain.

The knowledge argument aims to refute physicalism, the view that the world is entirely physical. The argument first establishes the existence of facts about consciousness that are not a priori deducible from the complete physical truth, and then infers the falsity of physicalism from this lack of deducibility. Frank Jackson gave the argument its classic formulation. But now he rejects the argument . On his view, it relies on a false conception of sensory experience, which should be replaced with representationalism , the view that phenomenal states are just representational states. And he argues that mental representation is physically explicable.

According to social externalism, it is possible to possess a concept not solely in virtue of one’s intrinsic properties but also in virtue of relations to one’s linguistic community. Derek Ball (2009) argues, in effect, that (i) social externalism extends to our concepts of colour experience and (ii) this fact undermines both the knowledge argument against physicalism and the most popular physicalist response to it, known as the phenomenal concept strategy. I argue that Ball is mistaken about (ii) even granting (i). The knowledge argument and the phenomenal concept strategy might have to be modified to make them consistent with social externalism, but not in fundamental or detrimental ways

What is the nature of consciousness? How is consciousness related to brain processes? This volume collects thirteen new papers on these topics: twelve by leading and respected philosophers and one by a leading color-vision scientist. All focus on consciousness in the "phenomenal" sense: on what it's like to have an experience. Consciousness has long been regarded as the biggest stumbling block for physicalism, the view that the mind is physical. The controversy has gained focus over the last few decades, and phenomenal knowledge and phenomenal concepts--knowledge of consciousness and the associated concepts--have come to play increasingly prominent roles in this debate. Consider Frank Jackson's famous case of Mary, the super-scientist who learns all the physical information while confined in a black-and-white room. According to Jackson, if physicalism is true, then Mary's physical knowledge should allow her to deduce what it's like to see in color. Yet it seems intuitively clear that she learns something when she leaves the room. But then how can consciousness be physical? Arguably, whether this sort of reasoning is sound depends on how phenomenal concepts and phenomenal knowledge are construed. For example, some argue that the Mary case reveals something about phenomenal concepts but has no implications for the nature of consciousness itself. Are responses along these lines adequate? Or does the problem arise again at the level of phenomenal concepts? The papers in this volume engage with the latest developments in this debate. The authors' perspectives range widely. For example, Daniel Dennett argues that anti-physicalist arguments such as the knowledge argument are simply confused; David Papineau grants that such arguments at least reveal important features of phenomenal concepts; and David Chalmers defends the anti-physicalist arguments, arguing that the "phenomenal concept strategy" cannot succeed.

Derek Parfit's combined-spectrum argument seems to conflict with epistemicism, a viable theory of vagueness. While Parfit argues for the indeterminacy of personhood, epistemicism denies indeterminacy. But, we argue, the linguistically based determinacy that epistemicism supports lacks the sort of normative or ontological significance that concerns Parfit. Thus, we reformulate his argument to make it consistent with epistemicism. We also dispute Roy Sorensen's suggestion that Parfit's argument relies on an assumption that fuels resistance to epistemicism, namely, that 'the magnitude of a modification must be proportional to its effect.'

Mary learns all the physical facts that one can learn by watching lectures on black-on-white television. According to Jackson, Mary learns new facts when she leaves the room and has color experiences, and that this undermines physicalism. Physicalists have responded by denying the new facts thesis; they argue, she acquires abilities, acquaintance knowledge, or new guises. I argue that the NFT is more plausible than any of the proposed alternatives. I also argue that the NFT does not undermine physicalism unless physicalism entails that all physical facts are discursively learnable, and that the latter entailment is questionable.

The titular ‘Mary’ refers to Jackson’s famous protagonist. Her story takes place in the future, when all physical facts have been discovered. This includes “everything in completed physics, chemistry, and neurophysiology, and all there is to know about the causal and relational facts consequent upon all this, including of course functional roles”. Mary learns all this by watching lectures on a monochromatic television monitor. But she spends her life in a black-and-white room and has no color experiences. Then she leaves the room and sees colors for the first time.