Modal Realism: Are possible worlds real? Last updated on 20 May 2026 Share F9B4F133-B102-45BD-8394-2C63883F146A Modal realism is the view that possible worlds are real. Why would we believe this is true? How plausible is it?NOTESFurther Reading Previous Class Nominalism Next Coextension Problem: Are coextensive properties a problem for class/resemblance nominalism?