David Chalmers, Professor of Philosophy at New York University where he is co-director of the Center for Mind, Brain, and Consciousness, discusses his important new book, Reality+. The book takes readers on a mind-bending journey through virtual worlds, illuminating the nature of reality and our place within it. Chalmers' book, Reality+: Virtual Worlds and the Problems of Philosophy, is available for purchase now. David Chalmers works in the philosophy of mind and in related areas of philosophy and cognitive science. He is especially interested in consciousness, but am also interested in all sorts of other issues in the philosophy of mind and language, metaphysics and epistemology, and the foundations of cognitive science.