Lawrence Hass is the Associate Dean of the Magic and Mystery School in Las Vegas.\xa0 We wanted to invite him on to talk about the theory of magic at its deepest level.\xa0 Lawrence has a Ph.D. in philosophy and taught the subject for many years.\xa0 As he was finishing his Ph.D. he happened upon a David Copperfield performance on TV.\xa0 He immediately started thinking about what Copperfield was doing in a philosophical framework.