According to the experience requirement on well-being, differences in subjects’ levels of welfare or well-being require differences in the phenomenology of their experiences. I explain why the two existing arguments for this requirement are not successful. Then, I introduce a more promising argument for it: that unless we accept the requirement, we cannot plausibly explain why only sentient beings are welfare subjects. I argue, however, that because the right kind of theory of well-being can plausibly account for that apparent fact (...) about welfare subjects even if the requirement is false, this argument does not succeed. I tentatively conclude that no compelling case can be made for the requirement. (shrink)

Can a person’s degree of wellbeing be affected by things that do not enter her experience? Experientialists deny that it can, extra-experientialists affirm it. The debate between these two positions has focused on an argument against experientialism—the experience machine objection—but few arguments exist for it. I present an argument for experientialism. It builds on the claim that theories of wellbeing should not only state what constitutes wellbeing, but also which entities are welfare subjects. Moreover, the claims it makes about these (...) two issues should have a certain coherence with each other. I argue that if we accept a particular plausible answer to the second question—namely that all and only sentient beings are welfare subjects—extra-experientialist theories face a problem of coherence. While this problem can typically be solved, doing so will involve steps that are unattractive. On experientialist theories, on the other hand, the answer to these questions cohere perfectly. (shrink)

Claims about consciousness in animals are often made in support of their moral standing. Peter Carruthers argues that there is no fact of the matter about animal consciousness and it is of no scientific or ethical significance. Sympathy for an animal can be grounded in its mental states, but should not rely on assumptions about its consciousness.

This article presents the case for an approach to consciousness that I call illusionism. This is the view that phenomenal consciousness, as usually conceived, is illusory. According to illusionists, our sense that it is like something to undergo conscious experiences is due to the fact that we systematically misrepresent them as having phenomenal properties. Thus, the task for a theory of consciousness is to explain our illusory representations of phenomenality, not phenomenality itself, and the hard problem is replaced by the (...) illusion problem. Although it has had powerful defenders, illusionism remains a minority position, and it is often dismissed as failing to take consciousness seriously. This article seeks to rebut this accusation. It defines the illusionist programme, outlines its attractions, and defends it against some common objections. It concludes that illusionism is a coherent and attractive approach, which deserves serious consideration. (shrink)

Illusionists about phenomenal consciousness claim that phenomenal consciousness does not exist but merely seems to exist. At the same time, it is quite intuitive for there to be some kind of link between phenomenality and value. For example, some situations seem good or bad in virtue of the conscious experiences they feature. Illusionist views of phenomenal consciousness then face what I call the normative challenge. They have to say where they stand regarding the idea that there is a link between (...) phenomenality and value. If they accept that there is such a link, they might be committed to revisionary normative consequences (and some of them may prove to be uncomfortable). If they deny that there is such link, they might avoid revisionary normative consequences (without being guaranteed against them) but then they have to give reasons to deny that such link obtains, which is not a trivial task. The existence of the normative challenge does not show that illusionism is false, but it shows that illusionism might have important consequences in the normative domain, which have to be clarified. (shrink)

Illusionism about phenomenal consciousness is the thesis that phenomenal consciousness does not exist, even though it seems to exist. This thesis is widely judged to be uniquely counterintuitive: the idea that consciousness is an illusion strikes most people as absurd, and seems almost impossible to contemplate in earnest. Defenders of illusionism should be able to explain the apparent absurdity of their own thesis, within their own framework. However, this is no trivial task: arguably, none of the illusionist theories currently on (...) the market is able to do this. I present a new theory of phenomenal introspection and argue that it might deal with the task at hand. (shrink)

In this paper I ask how we should treat other beings in cases of uncertainty about sentience. I evaluate three options: an incautionary principle that permits us to treat other beings as non-sentient, a precautionary principle that requires us to treat other beings as sentient, and an expected value principle that requires us to multiply our subjective probability that other beings are sentient by the amount of moral value they would have if they were. I then draw three conclusions. First, (...) the precautionary and expected value principles are more plausible than the incautionary principle. Second, if we accept a precautionary or expected value principle, then we morally ought to treat many beings as having at least partial moral status. Third, if we morally ought to treat many beings as having at least partial moral status, then morality involves more cluelessness and demandingness than we might have thought. (shrink)

In debates about animal sentience, the precautionary principle is often invoked. The idea is that when the evidence of sentience is inconclusive, we should “give the animal the benefit of the doubt” or “err on the side of caution” in formulating animal protection legislation. Yet there remains confusion as to whether it is appropriate to apply the precautionary principle in this context, and, if so, what “applying the precautionary principle” means in practice regarding the burden of proof for animal sentience. (...) Here I construct a version of the precautionary principle tailored to the question of animal sentience together with a practical framework for implementing it. I explain and defend the key features of this framework, argue that it is well-aligned with current practice in animal welfare science, and consider and reject a number of influential counterarguments to the use of precautionary reasoning in this area. (shrink)

This 1988 volume is a collection of thirteen seminal essays on ethics, free will, and the philosophy of mind. The essays deal with such central topics as freedom of the will, moral responsibility, the concept of a person, the structure of the will, the nature of action, the constitution of the self, and the theory of personal ideals. By focusing on the distinctive nature of human freedom, Professor Frankfurt is able to explore fundamental problems of what it is to be (...) a person and of what one should care about in life. (shrink)

I argue that there can be no such thing as a borderline case of the predicate ‘phenomenally conscious’: for any given creature at any given time, it cannot be vague whether that creature is phenomenally conscious at that time. I first defend the Positive Characterization Thesis, which says that for any borderline case of any predicate there is a positive characterization of that case that can show any sufficiently competent speaker what makes it a borderline case. I then appeal to (...) the familiar claim that zombies are conceivable, and I argue that this claim entails that there can be no positive characterizations of borderline cases of ‘phenomenally conscious’. By the Positive Characterization Thesis, it follows that ‘phenomenally conscious’ can not have any borderline cases. (shrink)

For thirty years, Peter Singer's Practical Ethics has been the classic introduction to applied ethics. For this third edition, the author has revised and updated all the chapters and added a new chapter addressing climate change, one of the most important ethical challenges of our generation. Some of the questions discussed in this book concern our daily lives. Is it ethical to buy luxuries when others do not have enough to eat? Should we buy meat from intensively reared animals? Am (...) I doing something wrong if my carbon footprint is above the global average? Other questions confront us as concerned citizens: equality and discrimination on the grounds of race or sex; abortion, the use of embryos for research and euthanasia; political violence and terrorism; and the preservation of our planet's environment. This book's lucid style and provocative arguments make it an ideal text for university courses and for anyone willing to think about how she or he ought to live. (shrink)

The relation between subjective consciousness and the physical brain is widely regarded as the last mystery facing science. David Papineau argues that there is no real puzzle here. Consciousness seems mysterious, not because of any hidden essence, but only because we think about it in a special way. Papineau exposes the confusion, and dispels the mystery: we see consciousness in its place in the material world, and we are on the way to a proper understanding of the mind.

Block’s well-known distinction between phenomenal consciousness and access consciousness has generated a large philosophical literature about putative conceptual connections between the two. The scientific literature about whether they come apart in any actual cases is rather smaller. Empirical evidence gathered to date has not settled the issue. Some put this down to a fundamental methodological obstacle to the empirical study of the relation between phenomenal consciousness and access consciousness. Block (2007) has drawn attention to the methodological puzzle and attempted to (...) answer it. While the evidence Block points to is relevant and important, this paper puts forward a more systematic framework for addressing the puzzle. To give it a label, the approach is to study phenomenal consciousness as a natural kind. The approach allows consciousness studies to move beyond the initial means of identifying instances of the kind, like verbal report, and to find its underlying nature. It is wellrecognised that facts about an underlying kind may allow identification of instances of the kind that do not match the initial means of identification (cp. non-liquid samples of water). This paper shows that the same method can be deployed to investigate phenomenal consciousness independently of access consciousness. (shrink)

The book is an extended study of the problem of consciousness. After setting up the problem, I argue that reductive explanation of consciousness is impossible , and that if one takes consciousness seriously, one has to go beyond a strict materialist framework. In the second half of the book, I move toward a positive theory of consciousness with fundamental laws linking the physical and the experiential in a systematic way. Finally, I use the ideas and arguments developed earlier to defend (...) a form of strong artificial intelligence and to analyze some problems in the foundations of quantum mechanics. (shrink)

Is suffering really bad? The late Derek Parfit argued that we all have reasons to want to avoid future agony and that suffering is in itself bad both for the one who suffers and impersonally. Nietzsche denied that suffering was intrinsically bad and that its value could even be impersonal. This paper has two aims. It argues against what I call ‘Realism about the Value of Suffering’ by drawing from a broadly Nietzschean debunking of our evaluative attitudes, showing that a (...) recently influential response to the debunking challenge (the appeal to phenomenal introspection) fails. It also argues that a Nietzschean approach is well suited to support the challenge and is bolstered by the empirical literature. As strangers to ourselves, we cannot know whether suffering is really intrinsically bad for us. (shrink)

An argument is offered for this conditional: If our current concept conscious state is sharp rather than vague, and also correct , then common versions of familiar metaphysical theories of consciousness are false--?namely versions of the identity theory, functionalism, and dualism that appeal to complex physical or functional properties in identification, realization, or correlation. Reasons are also given for taking seriously the claim that our current concept conscious state is sharp. The paper ends by surveying the theoretical options left open (...) by the concept's sharpness and the truth of the conditional argued for in the paper. (shrink)

A consideration of some of the most common questions about animal minds.Do birds have feelings? Can fish feel pain? Could a honeybee be anxious? For centuries, the question of whether or not animals are conscious like humans has prompted debates among philosophers and scientists. While most people gladly accept that complex mammals - such as dogs - share emotions and experiences with us, the matter of simpler creatures is much less clear. Meanwhile, the advent of the digital age and artificial (...) intelligence has created an added dimension to questions about non-human consciousness. In Tense Bees and Shell-Shocked Crabs, Michael Tye offers answers to some of today's most pressing questions about nonhuman consciousness. Blending the latest research about animal sensation with theories about the nature of consciousness, Tye develops a methodology for addressing the mysteries of the animal mind. Without endorsing any specific theory on the nature of consciousness, Tye tackles issues such as the animal experience of pain and fear, and the role of brain anatomy in determining consciousness. He then turns his attention to the artificial realm, considering whether complex robots could ever be considered conscious. Tye concludes with a discussion of how, if we consider animals conscious, this might impact our ethical obligations to them. From insects to crabs, fish to birds, Tense Bees and Shell-Shocked Crabs offers an insightful exploration of the ways in which animals relate to the world. Tense Bees and Shell-Shocked Crabs will appeal to students and scholars of philosophy and neuroscience, as well as general readers with an interest in animal and environmental ethics. (shrink)

Charles Siewert presents a series of thought experiment based arguments against a wide range of current theories of phenomenal consciousness which I believe achieves a considerable measure of success. One topic which I think gets insufficient attention is the discussion of functionalism and I address this here. Before that I consider the intriguing issue, which is seldom considered but figures prominently at the close of Siewert's book, of the value of consciousness. In particular, I broach the question of whether the (...) value of consciousness has any impact on our theoretical understanding of consciousness. (shrink)

Proposed is a two-factor explanation for our resistance to illusionism about phenomenal consciousness. The first is that we lack, and can't easily imagine, ways of checking the accuracy of introspective phenomenal representation. The second is that illusions of phenomenal consciousness would themselves appear to be phenomenally conscious. The illusionist's defence is to apply illusionism to illusions of consciousness, but the result, even if formally coherent, resists imaginative conception.