What follows if we reject belief in any kind of non-physical soul and instead fully embrace what we know about the world? The main implication, this book argues, is a naturalization of personal identity and ethics. A radically different way of thinking about ourself.

"A precondition of rational behaviour is a basic understanding of the nature of oneself and the world. Any fusion of ethical and decision-theoretic rationality into a seamless package runs counter to some of our deepest intuitions. But "You Are Them" makes a powerful case. Magnus Vinding's best book to date. Highly recommended." — David Pearce, co-founder of The Neuroethics Foundation, co-founder of World Transhumanist Association / Humanity+, author of The Hedonistic Imperative and The Anti-Speciesist Revolution.