 There are accounts of similarity under which similarity is not a symmetric relation (see Tversky 1977; Weisberg 2012, 2013: ch. 8; and Poznic 2016: sec. 4.2). This raises the question of how to analyse similarity. We turn to this issue in the next subsection. However, even if we concede that similarity need not always be symmetrical, this does not solve Goodman’s problem with reflexivity; nor does it, as we will see, solve other problems of the similarity account.