 Reydon’s identification of an epistemological turn in our understanding of kinds and categories leads to a new question about the category “artifact”. Rather than only asking whether it carves the world at a joint, we can also ask: Is it serving our epistemic purposes well? A number of authors have argued that “artifact” is methodologically counterproductive. Dan Sperber (2007, 136–137) claims that it is not a useful category for the purposes of a naturalistic social science.