Robert Sapolsky, a Stanford professor, discusses the concept of free will and argues that our actions are predetermined by biological and environmental factors. He explores the impact of genes, environment, and culture on human behavior, emphasizing the convergence of multiple disciplines. The relationship between free will and attributes, the role of tenacity and self-indulgence, and the implications of a world without belief in free will are also explored. The podcast concludes by discussing ethics and the criminal justice system in relation to free will.