Paul Davies is a theoretical physicist at Arizona State University where he leads the Beyond Center for Fundamental Concepts in Science. His research focuses mainly on quantum gravity, the theory of quantum black holes and the nature of time. On this episode of The Show About Science, he joins Nate to talk about the science of time travel. Learn more about Paul Davies and the Beyond Center: http://beyond.asu.edu/ Listen to more episodes of The Show About Science: https://theshowaboutscience.com/