This paper begins by applying a version of Timothy Williamson’s anti-luminosity argument to normative properties. This argument suggests that there must be at least some unknowable normative facts in normative Sorites sequences, or otherwise we get a contradiction given certain plausible assumptions concerning safety requirements on knowledge and our doxastic dispositions. This paper then focuses on the question of how the defenders of different forms of metaethical anti-realism (namely, error theorists, subjectivists, relativists, contextualists, expressivists, response dependence theorists, and constructivists) could (...) respond to the explanatory challenge created by the previous argument. It argues that, with two exceptions, the metaethical anti-realists need not challenge the argument itself, but rather they can find ways to explain how the unknowable normative facts can obtain. These explanations are based on the idea that our own attitudes on which the normative facts are grounded need not be transparent to us either. Reaching this conclusion also illuminates how metaethical anti-realists can make sense of instances of normative vagueness more generally. (shrink)

Almost all participants in the debate about the ethics of accidents with self-driving cars have so far assumed moral universalism. However, universalism may be philosophically more controversial than is commonly thought, and may lead to undesirable results in terms of non-moral consequences and feasibility. There thus seems to be a need to also start considering what I refer to as the “relativistic car” — a car that is programmed under the assumption that what is morally right, wrong, good, bad, etc. (...) is determined by the moral beliefs of one’s society or culture. My investigation of this idea involves six steps. First, I explain why and how the moral universalism/relativism debate is relevant to the issue of self-driving cars. Second, I argue that there are good reasons to consider accident algorithms that assume relativism. Third, I outline how a relativistic car would be programmed to behave. Fourth, I address what advantages such a car would have, both in terms of its non-moral consequences and feasibility. Fifth, I address the relativistic car’s disadvantages. Finally, I qualify and conclude my considerations. (shrink)

Motivational internalism and externalism – that is, theories about moral motivation – have played central roles in meta‐ethical debate mainly because they have been thought to have implications for the constitutive nature of moral judgements. Thus, internalism and externalism have been adduced in favour of and against various versions of cognitivism and non‐cognitivism. This article aims to question a fundamental presupposition behind such arguments. It has standardly been assumed (i) that if motivational internalism is true then moral judgements must consist (...) of attitudes that cannot be had without the relevant motivation, and (ii) that if motivational externalism is true, then moral judgements must consist of attitudes that one can have without being motivated. Against the background of a recent argument to the effect that the first of these assumptions is false, this article develops a parallel argument against the second. If this argument is correct, then motivational externalism is consistent with moral judgements being attitudes that one cannot have without being motivated. Together with the parallel argument concerning internalism, this means that the meta‐ethical significance of internalism and externalism must be reconsidered. (shrink)