Roger Penrose talks to us about the nature of time and his cyclic universe model.

This podcast comes to you from a conference on the nature of time. We talk to philosophers of physics Jeremy Butterfield and David Wallace, as well as the eminent Roger Penrose about the puzzle time poses to physicists and what it has to do with the Big Bang and the second law of thermodynamics. The conference is part of the Establishing the philosophy of cosmology project.

There is more about the nature of time in the Plus article What is time?, and you can find out more about Roger Penrose's cyclic universe model, which he talks about in this podcast, in his book Cycles of time.