Episode 47 of Books and Ideas is being released simultaneously in the Brain Science Podcast feed. It is an interview with Terrence Deacon, PhD., author of "Incomplete Nature: How Mind Emerged from Matter." We talk about the ongoing quest to explain the emergence of life, mind, and purpose using the known laws of physics (with out the need for any supernatural extras). For complete show notes and free episode transcripts please visit http://booksandideas.com/. You can send Dr. Campbell feedback at gincampbell at mac dot com or post feed on the Books and Ideas Fan Page on Facebook.