Epicurus argued that death can be neither good nor bad because it involves neither pleasure nor pain. This paper focuses on the deprivation account as a response to this Hedonist Argument. Proponents of the deprivation account hold that Epicurus’s argument fails even if death involves no painful or pleasurable experiences and even if the hedonist ethical system, which holds that pleasure and pain are all that matter ethically, is accepted. I discuss four objections that have been raised against the deprivation (...) account and argue that this response to Epicurus’s argument is successful once it has been sufficiently clarified. (shrink)

Biological studies have demonstrated that it is possible to slow the ageing process and extend lifespan in a wide variety of organisms, perhaps including humans. Making use of the findings of these studies, this article examines two problems concerning the effect of life extension on population size and welfare. The first—the problem of overpopulation—is that as a result of life extension too many people will co-exist at the same time, resulting in decreases in average welfare. The second—the problem of underpopulation—is (...) that life extension will result in too few people existing across time, resulting in decreases in total welfare. I argue that overpopulation is highly unlikely to result from technologies that slow ageing. Moreover, I claim that the problem of underpopulation relies on claims about life extension that are false in the case of life extension by slowed ageing. The upshot of these arguments is that the population problems discussed provide scant reason to oppose life extension by slowed ageing. (shrink)

Artificial agents such as robots are performing increasingly significant ethical roles in society. As a result, there is a growing literature regarding their moral status with many suggesting it is justified to regard manufactured entities as having intrinsic moral worth. However, the question of whether artificial agents could have the high degree of moral status that is attributed to human persons has largely been neglected. To address this question, the author developed a respect-based account of the ethical criteria for the (...) moral status of persons. From this account, the paper employs an empirical test that must be passed in order for artificial agents to be considered alongside persons as having the corresponding rights and duties. (shrink)

Synthetic biology is a cutting-edge area of research that holds the promise of unprecedented health benefits. However, in tandem with these large prospective benefits, synthetic biology projects entail a risk of catastrophic consequences whose severity may exceed that of most ordinary human undertakings. This is due to the peculiar nature of synthetic biology as a ‘threshold technology’ which opens doors to opportunities and applications that are essentially unpredictable. Fears about these potentially unstoppable consequences have led to declarations from civil society (...) groups calling for the use of a precautionary principle to regulate the field. Moreover, the principle is prevalent in law and international agreements. Despite widespread political recognition of a need for caution, the precautionary principle has been extensively criticized as a guide for regulatory policy. We examine a central objection to the principle: that its application entails crippling inaction and incoherence, since whatever action one takes there is always a chance that some highly improbable cataclysm will occur. In response to this difficulty, which we call the ‘precautionary paradox,’ we outline a deliberative means for arriving at threshold of probability below which potential dangers can be disregarded. In addition, we describe a Bayesian mechanism with which to assign probabilities to harmful outcomes. We argue that these steps resolve the paradox. The rehabilitated PP can thus provide a viable policy option to confront the uncharted waters of synthetic biology research. (shrink)

Epicurus argued that death can be neither good nor bad because it involves neither pleasure nor pain. This paper focuses on the deprivation account as a response to this Hedonist Argument. Proponents of the deprivation account hold that Epicurus’s argument fails even if death involves no painful or pleasurable experiences and even if the hedonist ethical system, which holds that pleasure and pain are all that matter ethically, is accepted. I discuss four objections that have been raised against the deprivation (...) account and argue that this response to Epicurus’s argument is successful once it has been sufficiently clarified. (shrink)

Abstract Objections to life extension often focus on its effects for individual well-being. Prominent amongst these concerns is the possibility that life extending technologies will extend lifespan without preventing the ageing of the mind. Writers on the subject express the fear that life extending drugs will keep us physically youthful whilst our minds decay, succumbing to dementia, boredom, and loneliness. Generally these fears remain speculative, in part due to the absence of genuine life extending technologies. In this paper, however, I (...) examine the implications of an existing life extension technology. Caloric restriction (CR) and drugs that mimic its effects, such as rapamycin, metformin and resveratrol have been shown to increase average and maximum lifespan in a wide variety of organisms, and seem likely to do so in humans. Moreover, some CR mimetic drugs (CRMs) are already widely used. This means that they present a pressing test case for fears about mental ageing in an extended life. Misgivings about mental ageing can be divided into biomedical factors such as the likelihood of brain ageing, and psychological factors such as loss of meaning and boredom. I argue that studies of CR suggest that brain ageing will be beneficially slowed. However, it is less clear that deleterious aspects of psychological ageing can be similarly retarded. I argue that this reduces the desirability of life extension unless major social changes can be made. (shrink)

We're all getting older from the moment we're born. Ageing is a fundamental and ubiquitous aspect of life. Yet in ethics, not much work is done on the questions surrounding ageing: how do diachronic features of ageing and the lifespan contribute to the overall value of life? How do time, change, and mortality impact on questions of morality and the good life? And how ought societies to respond to issues of social justice and the good, balancing the interests of generations (...) and age cohorts? In this Cambridge Handbook, the first book-length attempt to stake this terrain, leading moral philosophers from a range of sub-fields and regions set out their approaches to the conceptual and ethical understanding of ageing. The volume makes an important contribution to significant debates about the implications of ageing for individual well-being, social policy and social justice. (shrink)

I define and defend a non-democratic authority with the power to annul the decisions of democratic branches of government when such decisions infringe upon citizens’ basic rights and liberties. I refer to this non-democratic authority as Liberal Aristocracy. The argument for Liberal Aristocracy has two parts: the first part demonstrates that Liberal Aristocracy will arrive at decisions that further the moral end of sustaining citizens’ rights; the second part holds that Liberal Aristocracy is a moral means to this end. First, (...) I discuss two existing arguments for non-democratic authorities – Platonic Aristocracy and Constitutional Court Judges. I claim that Plato’s argument is unsuccessful because it relies on controversial metaethical premises that are unlikely to provide a basis for rights. Liberal justifications of the power of Constitutional Courts are argued to be incomplete because they do not designate an authority that is qualified to decide when citizens’ rights are infringed by democratic branches of government. Nor do they show that such an authority is in fact required if citizens’ rights are to be protected. In order to supplement the liberal argument for the power of Constitutional Courts I develop an account of Liberal Aristocracy, which rests on the idea that Constitutional Court Judges should possess moral expertise. I claim that moral expertise qualifies Judges to decide when citizens’ rights are violated by democratic decisions. Furthermore, I argue that decisions taken democratically will sometimes encroach on citizens’ rights. Claims and are shown to justify the non-democratic authority of Liberal Aristocracy. The second part of the argument for Liberal Aristocracy examines arguments to the effect that only democratic procedures can be morally legitimate, even if other decision procedures arrive at outcomes that provide greater support for citizens’ rights. Three claims are offered in support of this idea. First, democracy is claimed to be necessary to support deliberation. Second, democracy is seen as the only procedure that can uphold the value of autonomy by securing citizens’ consent. Third, it is argued that non-democratic procedures will not recognise the equal status of citizens. I hold that these three claims are false and that Liberal Aristocratic procedures can be morally legitimate. (shrink)