I argue that consideration of certain cases of severe depression reveals a problem for desire-based theories of welfare. I first show that depression can result in a person losing her desires and then identify a case wherein it seems right to think that, as a result of very severe depression, the individuals described no longer have any desires whatsoever. I argue that the state these people are in is a state of profound ill-being: their lives are going very poorly for (...) them. Yet desire theories get this case wrong. Because no desires are being frustrated, the desire theorist has no grounds for ascribing ill-being; indeed, because the individuals described seem utterly without desire, the desire theorist has no grounds for treating these people as subjects of welfare ascription at all. I argue that these results are unacceptable; therefore, we should reject desire-based theories of well-being and ill-being. (shrink)

Explains the desire-fulfillment theory of well-being, its history, its development, its varieties, its advantages, and its challenges.

Prudential hedonism has been beset by many objections, the strength and number of which have led most modern philosophers to believe that it is implausible. One objection in particular, however, is nearly always cited when a philosopher wants to argue that prudential hedonism is implausible—the experience machine objection to hedonism. This paper examines this objection in detail. First, the deductive and abductive versions of the experience machine objection to hedonism are explained. Following this, the contemporary responses to each version of (...) the argument are assessed and the deductive version is argued to be relatively ineffective compared to the abductive version. Then, a taxonomy of the contemporary critical responses to the abductive version is created. Consideration of these responses shows that the abductive version of the objection is fairly powerful, but also that one type of response seems promising against it. This response argues that experience machine thought experiments seem to elicit judgments that are either too biased to be used as evidence for the objection or not obviously in favour of reality. It is argued that only this type of refutation seems likely to convince proponents of the abductive version that the objection is much weaker than they believe it to be. Finally, it is suggested that more evidence is required before anything definitive can be said on the matter. (shrink)

According to the argument from self-sacrifice, standard, unrestricted desire-based theories of welfare fail because they have the absurd implication that self-sacrifice is conceptually impossible. I attempt to show that, in fact, the simplest imaginable, completely unrestricted desire-based theory of well-being is perfectly compatible with the phenomenon of self-sacrifice – so long as the theory takes the right form. I go on to consider a new argument from self-sacrifice against this simple theory, which, I argue, also fails. I conclude that, contrary (...) to popular opinion, considerations of self-sacrifice do not pose a problem for preferentist theories of welfare. (shrink)

One of the most important disputes in the foundations of ethics concerns the source of practical reasons. On the desire-based view, only one’s desires provide one with reasons to act. On the value-based view, reasons are instead provided by the objective evaluative facts, and never by our desires. Similarly, there are desire-based and non-desired-based theories about two other phenomena: pleasure and welfare. It has been argued, and is natural to think, that holding a desire-based theory about either pleasure or welfare (...) commits one to recognizing that desires do provide reasons for action – i.e., commits one to abandoning the value-based theory of reasons. The purpose of this paper is to show that this is not so. All of the following can be true: pleasure and welfare provide reasons; pleasure and welfare are to be understood in terms of desire; desires never provide reasons, in the relevant way. (shrink)

Under what conditions would an artificially intelligent system have wellbeing? Despite its clear bearing on the ethics of human interactions with artificial systems, this question has received little direct attention. Because all major theories of wellbeing hold that an individual’s welfare level is partially determined by their mental life, we begin by considering whether artificial systems have mental states. We show that a wide range of theories of mental states, when combined with leading theories of wellbeing, predict that certain existing (...) artificial systems have wellbeing. Along the way, we argue that there are good reasons to believe that artificial systems can have wellbeing even if they are not phenomenally conscious. While we do not claim to demonstrate conclusively that AI systems have wellbeing, we argue that there is a significant probability that some AI systems have or will soon have wellbeing, and that this should lead us to reassess our relationship with the intelligent systems we create. (shrink)

This paper summarizes and rebuts the three standard objections made by social choice theorists against interpersonal utility. The first objection argues that interpersonal utility is measningless. I show that this objection either focuses on irrelevant kinds of meaning or else uses implausible criteria of meaningfulness. The second objection argues that interpersonal utility has no role to play in social choice theory. I show that on the contrary interpersonal utility is useful in formulating goals for social choice. The third objection argues (...) that interpersonal utility in social choice theory can be replaced by clearer notions. I show that the replacements proposed are unsatisfactory in either interpersonal utility's descriptive or explanatory role. My conclusion is that interpersonal utility has a legitimate place in social choice theory. (shrink)