Joining Ed and Ron this week is Robin D. Hanson of associate professor of economics at George Mason University. Robin is the author of two fascinating books, The Age of Em and The Elephant in the Brain. He has worked with the Foresight Institute and DARPA, but perhaps his colleague at George Mason Bryan Caplan put it best: When the typical economist tells me about his latest research, my standard reaction is 'Eh, maybe.' Then I forget about it. When Robin Hanson tells me about his latest research, my standard reaction is 'No way! Impossible!' Then I think about it for years.