We loved talking to Alex Berg so much about physics and cosmosology so much that we brought him back! Come with us as we discuss time travel, alternate universes, fate vs free will, string theory, the big bang and more! Some of the things we talk about: The Hidden Reality by Brian Green Truck going 50mph firing cannonball backwards at 50mph The Umwelt Griffith Observatory - All Space Considered Also Anthony King discusses the theater group Elevator Repair Service and their show Arguendo, and Will Hines discusses "Weird Al" Yankovic's polka medleys.