This episode is an encore presentation of an interview with neuroscientists Stephen L. Macknik and Susana Martinez-Conde. We talk about their international bestseller "Sleights of Mind: What the Neuroscience of Magic Reveals about Our Everyday Deceptions." Macknik and Martinez-Conde are neuroscientists who study vision, but several years ago they had the innovative idea of collaborating with magicians to explore how their use of both visual and cognitive illusions reveals secrets about how our brains work.