The Michael Shermer Show

In this thought-provoking conversation, Dan Barker, a former evangelical preacher turned prominent atheist and co-president of the Freedom from Religion Foundation, explains the current state of separation of Church and State, the influence of Catholicism on the Supreme Court, and the ongoing debates surrounding public education and religious symbols. Barker also discusses the legal challenges tackled by his organization, and introduces “Contraduction,” a new philosophical concept that reexamines how beliefs and arguments can reverse in order and meaning. Plus, the moral implications of belief systems and the fine-tuning argument for the existence of God, the nature of nothingness, and free will. Dan Barker is co-president of the Freedom From Religion Foundation, co-host of Freethought Radio, and co-founder of The Clergy Project. He worked 19 years as an evangelical minister and is a member of the Lenape (Delaware) tribe of American Indians. His new book is Contraduction.

Paul Ehrlich reflects on his extensive career, including what he got wrong in The Population Bomb, the challenges of population growth, and the critical issue of biodiversity loss. He also discusses the importance of education and wealth in promoting environmental stewardship, the role of nuclear power, and the ethical dilemmas of cloning extinct species. Paul Ehrlich is Professor Emeritus of Population Studies in the Department of Biology and the president of the Center for Conservation Biology at Stanford University. He is the author of The Population Bomb. His new book is Before They Vanish: Saving Nature’s Populations—and Ourselves.

Journey to the frontiers of human knowledge with astrophysicist Kelsey Johnson as she explores mind-bending questions about the cosmos. Rather than just celebrating what we know, Johnson delves into the profound mysteries that remain unsolved—from the Big Bang to black holes—and examines how these uncertainties intersect with philosophy, theology, and human understanding. Kelsey Johnson is a professor of astronomy at the University of Virginia, former president of the American Astronomical Society, and founder of the award-winning Dark Skies, Bright Kids program. She has won numerous awards for her research, teaching, and promotion of science literacy. She lives in rural Virginia with her family, including two very large dogs. Her new book is Into the Unknown: The Quest to Understand the Mysteries of the Cosmos. Shermer and Johnson engage in a wide-ranging discussion covering fundamental questions about knowledge, existence, and the nature of our universe. Their conversation spans from the origins of the cosmos and the mysteries of dark matter to the possibilities of alien life and multiple dimensions. They explore philosophical concepts like free will, the mathematical nature of the universe, and the intersection of science with theology.

Michael Shermer interviews Jon Mills, a psychoanalyst and philosopher, on a variety of topics, including the evolution of psychoanalysis, the dynamics of therapeutic relationships, and the psychological roots of aggression and trauma. Mills explains Freud’s lasting influence, the moral implications of aggression, and the role violence plays in society. The conversation also explores how trauma affects individuals and families across generations and the difficulty of understanding human behavior when faced with global challenges. The discussion extends to broader issues such as individuality, the struggles faced by modern youth, and the evolution of belief in God. Shermer and Mills discuss how technology impacts mental health and the pursuit of spirituality without relying on traditional religion. Jon Mills, PsyD, PhD, ABPP, is a philosopher, psychoanalyst, and clinical psychologist. His two latest books are Inventing God: Psychology of Belief and the Rise of Secular Spirituality, and End of the World: Civilization and its Fate.