This paper responds to a recently popular objection to non-naturalist, robust moral realism. The objection is that moral realism is morally objectionable, because realists are committed to taking evidence about the distribution of non-natural properties to be relevant to their first-order moral commitments. I argue that such objections fail. The moral realist is indeed committed to conditionals such as “If there are no non-natural properties, then no action is wrong.” But the realist is not committed to using this conditional in (...) a modus-ponens inference upon coming to believe its antecedent. Placing the discussion in a wider epistemological discussion—here, that of “junk-knowledge”, and of how background knowledge determines the relevance of purported evidence—shows that this objection does not exert a price from the realist. (shrink)

Non-naturalists face a dilemma. They either leave their normative views hostage to a non-natural realm, which is immoral, or they do not, which is irrational. David Enoch has argued that the problem rests on cases of junk knowledge — conditionals that cannot be used to expand knowledge via modus ponens. Camil Golub has suggested that the dilemma rests on questionable assumptions about how we might come to know about the non-natural. Here I reply to these worries, sharpen the dilemma, and (...) situate it in the literature on doxastic wrongs. (shrink)