This module aims to provide an examination of metaphysical thinking and close study of central topics in contemporary metaphysics. These topics include identity, constitution, time, and survival. Metaphysics is the study of what kinds of things there and what they are like in the most general terms. We have both a common-sense picture of the world and a scientific picture of the world, and sometimes these two appear to conflict. Part of the job of metaphysics is to try to adjudicate what, if anything, in our picture of the world needs to be given up. And this is partly what we’ll do on this module.