In this podcast, Dr Raj Persaud discusses with Professor Christian List the scientifically rigorous argument for the existence of free will. Many scientists and philosophers are sceptical that free will exists, especially when it is understood to require the ability to choose between alternative possibilities. They argue that if the laws of physics govern everything that happens, then how can our choices be free? Believers in free will must therefore be misled by habit, sentiment or religious doctrine. However, in his new book , Why Free Will Is Real, Professor List defies this scientific orthodoxy and presents a bold new defence of free will in the same naturalistic terms that are usually deployed against it.