The existence and importance of supervenience principles for identity across times and worlds have been noted, but insufficient attention has been paid to their precise nature. Such attention is repaid with philosophical dividends. The issues in the formulation of the supervenience principles are two. The first involves the relevant variety of supervenience: that variety is global, but there are in fact two versions of global supervenience that must be distinguished. The second involves the subject matter: the names “identity over time” (...) and “identity across worlds” are misnomers, for in neither case is identity at issue. The philosophical dividends then follow. Nathan Salmon’s argument that identity over time needs no “grounds” in matters of qualitative fact can be answered, as can an argument offered by many, that coincident objects would require objectionably ungrounded differences in identities across times and worlds. (shrink)

Some philosophers believe that everyday objects are 4-dimensional spacetime worms, that a person (for example) persists through time by having temporal parts, or stages, at each moment of her existence. None of these stages is identical to the person herself; rather, she is the aggregate of all her temporal parts.1 Others accept “three dimensionalism”, rejecting stages in favor of the notion that persons “endure”, or are “wholly present” throughout their lives.2 I aim to defend an apparently radical third view: not (...) only do I accept person stages; I claim that we are stages.3 Likewise for other objects of our everyday ontology: statues are statue-stages, coins are coin-stages, etc. At one level, I accept the ontology of the worm view. I believe in spacetime worms, since I believe in temporal parts and aggregates of things I believe in. I.. (shrink)

Personal identity is not always symmetric: even if I will not be a later person, the later person may have been me. What makes this possible is that the relations that are criterial of personal identity---such as memory and anticipation---are asymmetric and "count in favor of personal identity from one side only". Asymmetric personal identity can be accommodated by temporal counterpart theory but not by Lewisian overlapping aggregates of person stages. The question of uncertainty in cases of personal fission (and (...) in Everettian quantum mechanics) is also discussed. (shrink)

In her recent book, L. A. Paul presses a serious problem for normative decision theory. Normative decision theory seems to be inapplicable when the values of potential outcomes are unknown, or when our preferences may change as a result of our choice. Paul then offers a framework for overcoming these problems, known as therevelation approach. I argue that, contrary to what Paul suggests, this approach is unhelpful in the large class of cases where the decision at hand centrally concerns persons (...) other than the decision-maker. Unless Paul’s account is supplemented in order to handle such cases, many decisions will remain rationally intractable. (shrink)

Many people believe that for someone to now be responsible for some past action, the agent of that action and the responsible agent now must be one and the same person. In other words, many people that moral responsibility presupposes numerical personal identity. In this paper, I show why this platitude is false. I then suggest an account of what actual metaphysical relationship moral responsibility presupposes instead.

Sustainable Development Goals, which serve as the primary feature of the 2030 Agenda for Sustainable Development, and Nationally Determined Contributions, which serve as a vital instrumental of the UNFCCC’s Paris Agreement, have clear synergies. Both are focused, in part, on responding to challenges presented to human well-being. There are good practical reasons to integrate development efforts with a comprehensive response to climate change. However, at least in their current form, these two policy instruments are ill-suited to this task. Where SDGs (...) are focused on supporting considerations of human flourishing to which policy needs to respond, NDCs, in their current form, are dependent on the determinations of the nations that generate them. I conclude that the best means of integrating these two policy initiatives require moving past the subjective foundations of NDCs. (shrink)

This paper attempts to show how a reductionist approach to the metaphysics of personal identity might well be most compatible with a form of contractualism, not utilitarianism.

According to a popular contemporary contractualist account of moral motivation, the most plausible explanation for why those who are concerned with morality take moral reasons seriously — why these reasons strike those who are moved by them with a particular inescapability — is that they stem from, and are grounded by, a desire to be able to justify one’s actions to others on grounds they could not reasonably reject.1 My.

Many philosophers have taken there to be an important relation between personal identity and several of our practical concerns (among them moral responsibility, compensation, and self-concern). I articulate four natural methodological assumptions made by those wanting to construct a theory of the relation between identity and practical concerns, and I point out powerful objections to each assumption, objections constituting serious methodological obstacles to the overall project. I then attempt to offer replies to each general objection in a way that leaves (...) the project intact, albeit significantly changed. Perhaps the most important change stems from the recognition that the practical concerns motivating investigation into personal identity turn out to be not univocal, as is typically thought, such that each of the different practical concerns may actually be related to personal identity in very different ways. (shrink)

Sidgwick gives various tests for highest certainty. When he applies these tests to commonsense morality, he finds nothing of highest certainty. In contrast, when he applies these tests to his own axioms, he finds these axioms to have highest certainty. The axioms culminate in Benevolence: “Each one is morally bound to regard the good of any other individual as much as his own, except in so far as he judges it to be less, when impartially viewed, or less certainly knowable (...) or attainable by him.” The axioms face challenges from two sides.First, one test requires that a claim not be denied by someone of whom one has no more reason to suspect of error than oneself. For Sidgwick, then, the egoist must not deny the axioms. But it would seem that an egoist would reject benevolence. Second, Sidgwick thinks he must show that the commonsense moralist agrees to the axioms. Benevolence seems to say that the only reason for departing from being bound to treat others like oneself is that more good would be produced. But the commonsense moralist will not agree that this is the only reason. In reply to the threat of an egoist's disagreement, this essay argues that many of the axioms should be read as having as their antecedent “from the point of view of the universe.” The essay replies to the objection that this makes these axioms analytic. In reply to the threat of a commonsense moralist's disagreement, this essay argues that each axiom states, in effect, a prima facie duty. The argument against the commonsense moralist concerns not benevolence but whether there are further duties that pass the tests. The essay raises the worry that here Sidgwick is unfair since sometimes he criticizes all-things-considered versions of commonsense duties; such criticisms would count against benevolence as well. (shrink)

In 'Benefit, Disability and the Non-Identity Problem', Hallvard Lillehammer uses the case of a couple who chose to have deaf children to argue against the view that impartial perspectives can provide an exhaustive account of the rightness and wrongness of particular reproductive choices. His conclusion is that the traditional approach to the non-identity problem leads to erroneous conclusions about the morality of creating disabled children. This paper will show that Lillehammer underestimates the power of impartial perspectives and exaggerates the ethical (...) force of partial perspectives, which in turn commits him to providing weak justifications for the choice made by the couple in his example case. (shrink)

Desire satisfaction has not received detailed philosophical examination. Yet intuitive judgments about the satisfaction of desires have been used as data points guiding theories of desire, desire content, and the semantics of ‘desire’. This paper examines desire satisfaction and the standard propositional view of desire. Firstly, I argue that there are several distinct concepts of satisfaction. Secondly, I argue that separating them defuses a difficulty for the standard view in accommodating desires that Derek Parfit described as ‘implicitly conditional on their (...) own persistence’, a problem posed by Shieva Kleinschmidt, Kris McDaniel, and Ben Bradley. The solution undercuts a key motivation for rejecting the standard view in favour of more radical accounts proposed in the literature. (shrink)

Argues against the rationality of self-concern. Non-instrumental interest in my own well-being is not justified by the fact that it is mine. This follows from the metaphysics of first-person thought, as thought about the object of immediate knowledge. The argument leaves room for rational self-interest as a form of self-love that is justified, like love for others, by the fact of our shared humanity.

Argues that practical irrationality is akin to moral culpability: it is defective practical thought which one could legitimately have been expected to avoid. It is thus a mistake to draw too tight a connection between failure to be moved by reasons and practical irrationality (as in a certain kind of "internalism"): one's failure may be genuine, but not culpable, and therefore not irrational.

While philosophers generally accept some version of the principle ‘ought’ implies ‘can’, recent work in experimental philosophy and cognitive science provides evidence against a presupposition or a conceptual entailment from ‘ought’ to ‘can’. Here, we review some of this evidence, its effect on particular formulations of the principle, and future directions for cognitive scientists and philosophers.

The paper considers a hierarchical theory that combines concern for two values: individual well-being – as a fundamental, first-order value – and (distributive) fairness – as a high-order value that its exclusive function is to complete the value of individual well-being by resolving internal clashes within it that occur in interpersonal conflicts. The argument for this unique conception of high-order fairness is that fairness is morally significant in itself only regarding what matters – individual well-being – and when it matters (...) – in interpersonal conflicts in which constitutive aspects of individual well-being clash. Consequently, the proposed theory is not exposed to claim that fairness comes at the expense of welfare. This theory is considered within a consequential framework, based on the standard version and, alternatively, on a novel interpretation of consequentialism. Thus, it refutes the claim that consequentialism does not take the distinction between persons seriously. (shrink)

I argue that utilitarianism requires us to tolerate intrapersonal disagreement for the same reasons that it requires us to tolerate interpersonal disagreement. I begin by arguing that multiplicity has the same costs and benefits as multiculturalism: It causes conflict, but it also allows us to perform experiments in living, adopt a division of labour, compartmentalize harm and learn from ourselves. I then argue that, in light of these costs and benefits, utilitarianism requires us to adopt a liberal system of individual (...) self-government, according to which we should not try to impose a unified set of beliefs and values on ourselves. Finally, I argue that we should apply this policy of liberal toleration to intrapersonal disagreement about utilitarianism too. If we want to maximize utility, then we should tolerate inner conflict not only about how to maximize utility but also about whether we should be maximizing utility in the first place. (shrink)

The apparent 'flow' of time is one of its most mysterious features, and one which discomforts both scientists and philosophers. One of the most striking assaults upon it is McTaggart's argument that the idea of temporal flow is demonstratively incoherent. In this paper I first urge that the idea of temporal flow is an important part of our intuitive understanding of time, underpinning several of our notions about rationality and time. Second, I try to undercut McTaggart's argument by showing that (...) it is not temporal flow which is illusory but rather the vicious regress McTaggart saw in that idea. A steadfast clinging to the notion of now, along with an analysis of McTaggart's argument reveals that the regress halts after but two steps. (shrink)

Abstract:This article suggests that there are individual differences in how people define important moral values, and that these differences are made manifest in differences in the situations. It identifies five dimensions along which individuals can differ in their understandings of values: 1)value category(where the value lies in the hierarchy), 2)agent(how voluntary the action is and whether it is morally required of the agent), 3)object(how close the self is to the object of the action; whether the action offends God) 4)effect(whether the (...) effect of the action is to harm or help), and 5)intention(whether the intention of the action is to harm or help). It then addresses four important values entailing moral dimensions: respect for life, respect for property, honest communication, and respect for religion. The article suggests that empirical research, classroom teaching, and business practice can be strengthened by considering these dimensions. (shrink)

A standard problem with the objectivity of social scientific theory in particular is that it is either self-referential, in which case it seems to undermine itself as ideology, or self-excepting, which seem pragmatically self-refuting. Using the example of Marx and his theory of ideology, I show how self-referential theories that include themselves in their scope of explanation can be objective. Ideology may be roughly defined as belief distorted by class interest. I show how Marx thought that natural science was informed (...) by class interest but not therefore necessarily ideology. Capitalists have an interest in understanding the natural world (to a point) so that they can manipulate it for profit. Their survival in the marketplace often depends on their competitive success in doing so. The fact that their interventions into nature, driven by class interest, often succeed, is evidence of the reliability and truth of their natural scientific theories. -/- With social science, capitalists have a partial interest in understanding the world, so that they may maintain their class power, ideological hegemony, and a reasonably stable and self-reproducing economy. Some bourgeois social science, Marx thinks, is therefore vindicated the same way that natural science is, because of, not despite, its success in promoting the class interests that cause it. But the capitalist class, Marx thinks, also has an interest in obfuscating the truth about the social world. It would undermine the stability of capitalism, for example, for the bourgeoisie to adopt what Marx thinks to be the correct social theory, Marxism, and proclaim to the world that capitalism is exploitative and unstable. Capitalism creates a a need for ideological social theories that, driven by class interest, represent capitalism as just, natural, inevitable, and unalterable. If Marxism is correct, while these theories may further capitalist interests, they will not withstand the test of time as capitalist exploitation and instability engenders countersystemic political action. -/- How, then can we know, according to Marx, that Marxism is correct, as applied to itself? In part it is whether it succeeds in further the class interests that cause it. If workers adopt bourgeois theories and Marxism is right, they will find themselves frustrated in pursuit of goals that they have, such as improving their well-being, and if Marxism is wrong, then those theories will help them further their own goals. Similarly with Marxism: if it is right, then workers who adopt it should in the long run have more success in furthering their own goals, and if not, then not. But it is question begging to say that our confidence in the reliability of Marxism is enhanced by its successful promotion of goals that capitalists do not have but (according to Marxism) workers do. To avoid this problem it is necessary to compare the relative success of each sort of theory in promoting the interests and needs that the respective classes have independently of the theory, as well as by the usual criteria of scientific theory choice. -/- Thus the Soviet variant of Marxism was fairly decisively refuted by its failure to generate the support of its own designated constituency necessary to grow and survive. Whether the same is true of other varieties of Marxism or of capitalist social theory, it is, as Zhou En Lai said when asked whether the French Revolution had succeeded, too soon to tell, at least in any definitive way. However, and this is the point of the paper, an objective test of Marxism is possible even though Marxism says that all theory is informed by class interest. The question is whether the interests are in discovering or obfuscating the truth. The point is not limited to Marx, but applies to any self-referential social scientific theory that includes itself in its scope. -/- Keywords: ideology, self-referential theory, self-reference, reliabilism, objectivity, Marx, Marxism, sociology of science, class interest, classes, capitalism, bourgeoisie, workers, working class, social theory of knowledge, confirmation of scientific theory. (shrink)

Multiple self approaches purport that to have equal concern about all stages of one’s life is not a requirement of rationality. This poses a challenge to the prudential lifespan account which Norman Daniels advocates in Just health: meeting health needs fairly. Daniels has criticised the multiple self approach in earlier works, most extensively in Am I my parents keeper? In Just health, he only takes up the issue except in one footnote, presumably because he is convinced that his preceding discussions (...) settled the matter. This article argues that Daniels underestimates the force of the multiple self objection to prudential lifespan account. (shrink)

In the following, it will be argued that Nāgārjuna adopts a Buddhist nominalism that encompasses not only a position towards abstract entities, but resonates with a nominalist perspective on the “social reality” of persons. Early Buddhist texts, such as the Suttanipāta, argue that human persons defy a classification in hierarchic “classes”, because there is no moral substance, e.g. of Brahmins. Differences between individuals do not exist by nature, since it is the individual that realizes difference according to the specific personal (...) realization of action and moral cultivation. Buddhist “nominalism,” therefore, has at least one of its central roots in a rejection of a socially privileged “selves,” a stratified social hegemony, and religious truth claims. Nāgārjuna, on his part, radicalizes nominalism as a threefold correlation of the “non-articulated self,” a “non-articulated” reality, and finally, a “non-articulated” dimension even within all concepts, names, and designations. In this vein, Nāgārjuna’s śūnyavāda can be seen as a consequent attempt to neutralize unwanted social and psychological consequences of ontological language-use. Nāgārjuna even self-critically questions the position that the workings of a Buddhist path of liberation can be articulated, which seems to be a remarkable parallel to certain roots of Western nominalism. (shrink)

Parfit’s Repugnant Conclusion argues, against intuition, that for any world A, another world Z with higher population and minimal well-being is better. That intuition is incorrect because the argument has not considered resources that support well-being. Z must have many more resources supporting well-being than A does. Z is repugnant because it spreads those resources among too many people; another world with Z’s resources and fewer people, if available, would be far superior. But Z is still better than A; it (...) is worth accepting its very large population to get the resources needed to support their well-being. (shrink)

In this paper, I appeal to the notion of practical identity in order to defend the possibility of synchronic duties to the self—that is, self-directed duties focused on one's present self as opposed to one's future self. While many dismiss the idea of self-directed duties, I show that a person may be morally required to act in ways that advance her present interests and autonomy by virtue of her occupying multiple practical identities at a single moment.

ABSTRACTIs the question ‘will you regret it if you do this?’ helpful when people face difficult life decisions, such as terminating a pregnancy if a disability is detected or deciding to become a parent? Despite the commonness of the question in daily life, several philosophers have argued lately against its usefulness. We reconstruct four arguments from recent literature on regret, transformative experience and the use of imagination in deliberation. After analysis of these arguments we conclude that the prospect of regret (...) remains a useful deliberative heuristic, provided four conditions are fulfilled. If the prospect of regret is arrived at via reflection on one’s values, in a non-coercive context, when well-informed about factual circumstances, and in a process of self-commitment, the question of what one will regret is a helpful device to get in touch with one’s deepest concerns that give reasons to act in a particular way. (shrink)

As the twentieth century begins to draw to a close, Europe is undergoing a process of political transformation whose outcome cannot be predicted with confidence, in part because the process is being driven by two powerful but conflicting tendencies. The first is the movement toward greater economic and political union among the countries of Western Europe. The second is the pressure, in the aftermath of the collapse of the Soviet Union, for the countries of Eastern Europe to fragment along ethnic (...) and communal lines. (shrink)

Instrumentalism is the view that all requirements of practical reason can be derived from the instrumental principle, that is, from the claim that one ought to take the suitable means to one's ends. Rationalists, by contrast, hold that there are requirements of practical reason that concern the normative acceptability of ends. To the extent that rationalists put forward these requirements in addition to the instrumental principle, rationalism might seem to go beyond instrumentalism in its normative commitments. This is why it (...) is sometimes thought that rationalism is stronger than instrumentalism in a way that entails that instrumentalism is the default view, while rationalists carry the burden of proof. In this paper, I explore and discuss different ways of spelling out this idea. I argue that rationalism is not stronger than instrumentalism in a way that has implications for matters of justification and differences in prima facie defensibility of the two sorts of views. (shrink)

Am 1. Januar dieses Jahres verstarb Derek Parfit, nur kurz vor dem Erscheinen des dritten Bandes von On What Matters, seinem zweiten Hauptwerk. Dieser Schwerpunkt beschäftigt sich mit den ersten beiden Bänden des Buches, das bereits jetzt zu den meistdiskutierten Werken der Gegenwartsphilosophie gehört. Mit dem Buch beabsichtigt Parfit, die wichtigsten Ansätze der Moralphilosophie – von Konsequentialismus, Kantianismus und Kontraktualismus – zusammenzuführen. Er versucht aufzuzeigen, dass es zwischen ihren Positionen keine unauflösbaren Meinungsunterschiede gibt und ihnen ein gemeinsames Moralprinzip zugrunde liegt. (...) Die Beiträge des Schwerpunktes wenden sich den Grundzügen, aber auch entscheidenden Einzelheiten von Parfits Projekt zu. Zum einen kommen dabei die metaethischen Voraussetzungen zur Sprache, von denen Parfit ausgeht; zum anderen wird Parfits kritische Auseinandersetzung mit Positionen bei Kant selbst oder von ihm inspirierten Autoren sowie mit Scanlon untersucht. (shrink)

Philosophical discussions of personal identity depend upon thought experiments which describe psychological vicissitudes and question whether the original person survives in the person resulting from the described change. These cases are meant to determine the types of psychological change compatible with personal continuation. Two main accounts of identity try to capture this distinction; psychological continuity theories and narrative theories. I argue that neither fully succeeds since both overlook the importance of a relationship I call “empathic access.” I define empathic access (...) and discuss its role in a complete account of personal identity. (shrink)

If philosophical moral reflection improves moral behavior, one might expect ethics professors to behave morally better than socially similar non-ethicists. Under the assumption that forms of political engagement such as voting have moral worth, we looked at the rate at which a sample of professional ethicists—and political philosophers as a subgroup of ethicists—voted in eight years’ worth of elections. We compared ethicists’ and political philosophers’ voting rates with the voting rates of three other groups: philosophers not specializing in ethics, political (...) scientists, and a comparison group of professors specializing in neither philosophy nor political science. All groups voted at about the same rate, except for the political scientists, who voted about 10–15% more often. On the face of it, this finding conflicts with the expectation that ethicists will behave more responsibly than non-ethicists. (shrink)

Philosophical materialists suggest that a person can be identified with their brain. My paper is a critical investigation of this provocative thesis and an analysis of some of the prominent arguments to support this view. My overall argument is that there is more to this issue than some philosophers appear to acknowledge.

Counterpart theory is often advertised by its track record at solving metaphysical puzzles. Here I focus on puzzles of occasional identity, wherein distinct individuals at one world or time appear to be identical at another world or time. To solve these puzzles, the usual interpretation rules of counterpart theory must be extended beyond the simple language of quantified modal logic. I present a more comprehensive semantics that allows talking about specific times and worlds, that takes into account the multiplicity and (...) sortal-dependence of counterpart relations, and that does not require names to denote actual or present individuals. In addition, the semantics I defend does not identify ordinary individuals with world-bound or time-bound stages and thereby avoids the most controversial aspect of counterpart theory. Humphrey’s counterpart at other worlds or times is none other than Humphrey himself. (shrink)

When an agent undergoes fission, how should the beliefs of the fission results relate to the pre-fission beliefs? This question is important for the Everett interpretation of quantum mechanics, but it is of independent philosophical interest. Among other things, fission scenarios demonstrate that ‘self-locating’ information can affect the probability of uncentred propositions even if an agent has no essentially self-locating uncertainty. I present a general update rule for centred beliefs that gives sensible verdicts in cases of fission, without relying on (...) controversial metaphysical or linguistic assumptions. The rule is supported by the same considerations that support standard conditioning in the traditional framework of uncentred propositions. (shrink)

Does doing good in itself make one a better person? This idea is intuitive yet its precise formulation underexplored. This article first shows that it is not the case that a person is good to the extent that her existence brings about good or to the extent that her actions do good. A proportional principle that evaluates a person according to the expected goodness of her actual course of action relative to the expected goodness of other available courses is shown (...) to be the most plausible candidate. However, such a principle can only be a pro tanto principle of what makes persons good. To account for other relevant intuitions – such as that a person's motives matter for how good she is – we need further principles. This article ends with a few practical implications about how to be a better person according to the principle defended here. (shrink)

What does it take to count as competent with the meaning of a thin evaluative predicate like 'is the right thing to do'? According to minimalists like Allan Gibbard and Ralph Wedgwood, competent speakers must simply use the predicate to express their own motivational states. According to analytic descriptivists like Frank Jackson, Philip Pettit and Christopher Peacocke, competent speakers must grasp a particular criterion for identifying the property picked out by the term. Both approaches face serious difficulties. We suggest that (...) these difficulties derive from a shared background assumption that competence conditions must be explained in terms of a determinate conceptual role. We propose a new way of characterizing competence with evaluative terms: what's required for competence is participation in a shared epistemic practice with a term. Our approach, we argue, better explains the nature of evaluative inquiry and the extent of disagreement about evaluative questions. (shrink)

This paper is a critique of Ralph Wedgwood's recent attempt to use the framework of conceptual role semantics in metaethics. Wedgwood's central idea is that the action-guiding role of moral terms suffices to determine genuine properties as their semantic values. We argue that Wedgwood cannot get so much for so little. We explore two interpretations of Wedgwood's account of what it takes to be competent with a thin moral term. On the first interpretation, the account does not warrant the assignment (...) of a normative property as the semantic value of the target expression. On the second interpretation, the account presupposes that the subject has a prior understanding of normative notions. (shrink)

In a recent contribution to Utilitas Hugh Upton has criticized my defence of utilitarianism against the charge that it is committed to regarding the pleasures taken by sadists in other people's pain as increasing the amount of good in the world and so at least partially offsetting the suffering of the victims. In the present paper I clarify and defend my view that sadists implicitly insult their own human qualities, thus rendering it impossible to respect themselves as human beings, when (...) they enjoy the suffering of others with essentially similar qualities. Distinguishing between happiness and pleasure, I explain why it is not, as Upton thinks, a mere stipulation to deny that the sadist's self-demeaning pleasures are capable of augmenting his happiness. (shrink)

I argue that pregnant women have a duty to refrain from behaviours or to allow certain acts to be done to them for the sake of their foetus if the foetus has a reasonable chance of living and being in a harmed state if the woman does not refrain from those behaviours or allow those things to be done to her. There is a proviso: that her refraining from acting or allowing acts to be performed upon her does not significantly (...) harm her. This duty does not presuppose that the foetus is a person. It is grounded on principles of respect for the interests of sentient beings and prevention of harm to future individuals. I give an argument for a general duty of easy rescue. (shrink)

In her excellent and comprehensive article, Friesen argues that utilising personal responsibility in healthcare is problematic in several ways: it is difficult to ascribe responsibility to behaviour; there is a risk of prejudice and bias in deciding which behaviours a person should be held responsible for; it may be ineffective at reducing health costs. In this short commentary, I will elaborate the critique of personal responsibility in health but suggest one way in which it could be used ethically. In doing (...) so, I will introduce the concepts of reasonable risk and golden opportunity. I previously argued that it is both difficult to disentangle responsibility and that we risk prejudice and bias in singling out behaviours that are socially disapproved of.1 So I am sympathetic to Friesen’s concerns. I also discussed another way in which ascribing personal responsibility for health is problematic which Friesen does not discuss and which, in my view, is the most concerning and further supports her arguments. It represents a back door assault on liberalism and neutrality towards concepts of the good life. Even if one were to accurately and in an unbiased way divine the personal contribution to disease, the greatest problem would remain: those who voluntarily take on risk would be penalised. That is, such a system would be risk-averse. Those lives which avoided risk would be prioritised, while those who chose to take on risky activities in their conception of the good life would be penalised. Yet risk is necessary, both for the good life, and social progress. Columbus, Edmund Hilary, Florence Nightingale, Ernest Hemingway and countless monumental figures in human history took risks in order to achieve something great. Should we aim for a society of trembling, teetotalling health nuts? Surely that prospect is horrific. It is horrific because it elevates health …. (shrink)

We examine the philosophical and ethical issues associated with conjoined twins and their surgical separation. In cases in which there is an extensive sharing of organs, but nevertheless two distinguishable functioning brains, there are a number of philosophical and ethical challenges. This is because such conjoined twins: 1. give rise to puzzles concerning our identity, about whether we are identical to something psychological or biological;2. force us to decide whether what matters from an ethical point of view is the biological (...) life of our organisms or the existence of our consciousness or mind; 3. raise questions concerning when, if ever, it is morally acceptable to sacrifice one of us to save another;4. force us to reflect on the conditions for ownership of organs and the justification of removal of organs for transplantation which causes the death of the donor; 5. raise questions about who should take decisions about life-risking treatments when this cannot be decided by patients themselves.We examine and suggest answers to these questions. (shrink)

A variety of ideas arising in decoherence theory, and in the ongoing debate over Everett's relative-state theory, can be linked to issues in relativity theory and the philosophy of time, specifically the relational theory of tense and of identity over time. These have been systematically presented in companion papers (Saunders 1995; 1996a); in what follows we shall consider the same circle of ideas, but specifically in relation to the interpretation of probability, and its identification with relations in the Hilbert Space (...) norm. The familiar objection that Everett's approach yields probabilities different from quantum mechanics is easily dealt with. The more fundamental question is how to interpret these probabilities consistent with the relational theory of change, and the relational theory of identity over time. I shall show that the relational theory needs nothing more than the physical, minimal criterion of identity as defined by Everett's theory, and that this can be transparently interpreted in terms of the ordinary notion of the chance occurrence of an event, as witnessed in the present. It is in this sense that the theory has empirical content. (shrink)

I argue that a form of animalism that does not include the belief that ‘human animal’ is a substance-sortal has a dialectical advantage over other versions of animalism. The main reason for this advantage is that Phase Animalism, the version of animalism described here, has the theoretical resources to provide convincing descriptions of the outcomes of scenarios problematic for other forms of animalism. Although Phase Animalism rejects the claim that ‘human animal’ is a substance-sortal, it is still appealing to those (...) who believe that our nature is continuous or of a similar kind to that of other physical entities. (shrink)

Your replica is created on Mars and you, on Earth, are destroyed. Parfit claims that your replica may still have what prudentially matters for you – provided that you are psychologically connected and continuous with your replica. If someone accidentally destroys the tapes containing your psychological profile used in the production of your replica and this same action fortuitously produces a functionally equivalent tape, Ehring claims that Parfit should maintain that the resulting new individual may still have what matters. Nihilism (...) about what matters follows, or so Ehring claims. I argue that Ehring is wrong and that the difference between the two ways of creating a replica is not trivial – there is no trivial survival. (shrink)