My guest today is David Deutsch. David is a renowned physicist and philosopher, best known for his work on quantum computation and his contributions to the field of quantum mechanics. He's a fellow of the Royal Society and a visiting professor of physics at the University of Oxford. David has written two books called "The Fabric of Reality" and "The Beginning of Infinity" In this episode, we talk about the purpose of science. We discuss the concept of an explanation and its crucial role in the scientific process. We examine the famous double-slit experiment. We discuss rival interpretations of quantum mechanics and what they imply about the nature of reality. We also talk about progress in physics and advances in artificial intelligence.