Guglielmo Feis is a post-doc in Philosophy of Law at the State University of Milan. He works mainly on (i) normative conflicts, (ii) social ontology and (iii) blockchain, sometimes on all three at once.He wrote a book on legal impossibility (2015), and various papers on the issues above (and more) such as “What’s New About New Realism? Mereology and the Varieties of (New) Realism” (with Jacopo Tagliabue, Philosophia 2015) and “Ought implies Can and the Law” (with Chris Fox, Inquiry 2018).