If our moral beliefs rest on a mistake, as moral error theorists claim, what should we do with them? According to Richard Joyce’s revolutionary moral fictionalism, error theorists should pretend to believe moral propositions in order to keep the benefits moral thinking has for their preference satisfaction. This, he claims, frees error theory from radical practical implications. In response, I argue that implementing fictionalism would not preserve our moral practices, but disrupt them. The change from moral belief to make-belief yields (...) an unintended second revolution: a revolution in the content of morality. I show that fictionalism necessarily relies on a similar justification of moral practices as David Gauthier’s contractarianism, and consequently has similar implications for moral content. Because fictionalists engage in moral thinking purely for its instrumental value, they should only accept moral obligations that are useful to them into their fiction. This restriction is important: the most useful moral fiction departs substantially from conventional moral views. Revolutionary moral fictionalism is therefore more radical than it is promised to be. (shrink)

Moral error theorists face the now what question. How, if at all, ought they to adjust their moral practice after having discovered the error? Various answers have emerged in the literature, including, but not limited to, revisionary fictionalism, revisionary expressivism, and revisionary naturalism. Recently, François Jaquet has argued that there are only two available answers to the now what question, since every extant answer except revisionary fictionalism collapses into abolitionism. This paper provides a response. First, it argues that revisionary naturalism (...) does not collapse into abolitionism. The argument is that abolitionists can neither utter schmoralist naturalist replacement judgments that contain moral terms nor eliminativist naturalist replacement judgments that do not contain moral terms. This means that abolitionists cannot utter replacement judgments at all. Since revisionary naturalists can utter replacement judgments, their view does not collapse into abolitionism. Second, the paper gives reason to believe that this result extends beyond revisionary naturalism to the other revisionary metaethical theories, and that this is good news for moral error theory. (shrink)