 The question whether to admit distinctions of naturalness among properties is often treated as a major choice point for theorising in metaphysics. Lewis presents his various proposals involving naturalness as part of an overarching argument for the good standing of the notion of naturalness, based on its theoretical utility. Meanwhile, the rejection of distinctions of naturalness is often (e.g. by Taylor  1993)  thought of as bound up with the denial of “metaphysical” or “full-blooded” realism, and associated with controversial claims about mind-dependence or perspective-relativity.