"A leading philosopher takes a mind-bending journey through virtual worlds, illuminating the nature of reality and our place within it. Virtual reality is genuine reality. That's the central thesis of Reality+. In a highly original work of "technophilosophy," David J. Chalmers argues that virtual worlds generated by computers are not second-class worlds. We can live a meaningful life in virtual reality. We may even be living in a computer simulation already-and if we are, that's not so bad. What is reality, anyway? How do we know there's an external world? What's the relation between mind and body? How can we lead a good life? Is there a god? In Reality+, Chalmers conducts a grand tour of philosophy, using virtual worlds to illuminate all of these questions and to provide new answers to many of them. Studded with illustrations that bring philosophical issues to life, Reality+ is a major statement that will shape discussion of philosophy and technology for years to come"--