 Physicalism—on this and related understandings—has difficulties as well. First, even if it is true, it would be surprising if this is all we can say about the facts that determine the social ones. Physicalism seems at best a starting point in an account of the ontology of the social. Some theorists have put forward alternative approaches to stratification and hierarchy (Wimsatt 1976, 1994; Potochnik 2010; Potochnik &amp; McGill 2012; Thalos 2013), and Ylikoski 2014 does so for the social world. But these are largely designed to make sense of levels of a sort in scientific methodology, rather than to put forward claims about ontological determination.