Neil Sinclair

This paper reflects on fundamental ethical issues concerning designing for behavioural change, in order to raise questions about the factors that should be considered by design practitioners when developing interventions. It draws on existing literature on philosophical ethics, moral psychology and design. It proposes a list of ethical questions and considerations to be made throughout the design process. A case study addressing behavioural changes in antibiotics prescriptions (for Urinary Tract Infections) was carried out to demonstrate how the ethical questions identified are asked and considered. We provide a framework for addressing these issues with the hope that it will help minimise the risk of problematic and unethical intervention design processes.

At the turn of the twentieth century, G.E. Moore contemptuously dismissed most previous 'ethical systems' for committing the 'Naturalistic Fallacy'. This fallacy – which has been variously understood, but has almost always been seen as something to avoid – was perhaps the greatest structuring force on subsequent ethical theorising. To a large extent, to understand the Fallacy is to understand contemporary ethics. This volume aims to provide that understanding. Its thematic chapters – written by a range of distinguished contributors – introduce the history, text and philosophy behind Moore's charge of fallacy and its supporting 'open question' argument. They detail how the Fallacy influenced multiple traditions in ethics, its connections to supposed dichotomies between 'is'/'ought' and facts/values, and its continuing relevance to our understanding of normativity. Together, the chapters provide a historical and opinionated introduction to contemporary ethics that will be essential for students, teachers and researchers.

Ethical subjectivists hold that moral judgements are descriptions of our attitudes. Expressivists hold that they are expressions of our attitudes. These views cook with the same ingredients – the natural world, and our reactions to it – and have similar attractions. This Element assesses each of them by considering whether they can accommodate three central features of moral practice: the practicality of moral judgements, the phenomenon of moral disagreement, and the mind-independence of some moral truths. In the process, several different versions of subjectivism are distinguished and key expressivist notions such as 'moral attitudes' and 'expression' are examined. Different meanings of 'subjective' and 'relative' are examined and it is considered whether subjectivism and expressivism make ethics 'subjective' or 'relative' in each of these senses.

Nicholas Sturgeon memorably asked: ‘What difference does it make whether moral realism is true?’ His question was prompted by the rise of the metaethical upstart quasi-realism, which urges that an expressivist account of moral discourse is compatible with most, if not all, of its important contours. In his invigorating new book, Cuneo offers a startling new answer to Sturgeon’s question.1 If moral realism were not true, Cuneo argues, we would not be able to speak. But since we evidently can speak, moral realism must be true. So for Cuneo, the Hobbesian view that moral norms are the product of spoken contracts gets things quite the wrong way round: rather, the speech-act of contracting – like all illocutionary speech-acts – is partly the product of...

Many philosophers argue that the face-value of moral practice provides presumptive support to moral realism. This paper analyses such arguments into three steps. Moral practice has a certain face-value, only realism can vindicate this face value, and the face-value needs vindicating. Two potential problems with such arguments are discussed. The first is taking the relevant face-value to involve explicitly realist commitments; the second is underestimating the power of non-realist strategies to vindicate that face-value. Case studies of each of these errors are presented, drawn from the writings of Shafer-Landau, Brink and McNaughton, and from recent work in experimental metaethics. The paper then considers weak presumptive arguments, according to which both realist and non-realist vindications of moral practice are possible, but the realist vindications are more natural. It is argued that there is no sense of ‘natural’ available that can make these arguments work. The conclusion is that all extant presumptive arguments for moral realism fail.

This chapter argues that evolutionary debunking arguments are dialectically ineffective. Such arguments rely on the premise that moral judgements can be given evolutionary explanations which do not invoke their truth. The challenge for the debunker is to bridge the gap between this premise and the conclusion that moral judgements are unjustified. After discussing older attempts to bridge this gap, this chapter focuses on Joyce’s recent attempt, which claims that ‘we do not have a believable account of how moral facts could explain the mechanisms…which give rise to moral judgements’. It argues that whether there is such an account depends on what it is permissible to assume about moral truth and that it is reasonable to make assumptions which allow for the possibility of at least partial moral epistemologies. The challenge for the debunker is to show that these assumptions are unreasonable in a way which does not render their debunking argument superfluous.

Are moral properties intellectually indispensable, and, if so, what consequences does this have for our understanding of their nature, and of our talk and knowledge of them? Are mathematical objects intellectually indispensable, and, if so, what consequences does this have for our understanding of their nature, and of our talk and knowledge of them? What similarities are there, if any, in the answers to the first two questions? Can comparison of the two cases shed light on which answers are most plausible in either case? This chapter – the introduction to the volume Explanation in Ethics and Mathematics – elucidates these questions and sketches their history