Cathy Young returns to the show for a wide-ranging conversation about free speech, institutional trust, and the strange incentives shaping public debate today. What happens when universities, media outlets, political movements, and online personalities trade careful thinking for moral certainty, tribal loyalty, or attention?

Michael and Cathy discuss the pressure to excuse bad ideas when they come from "your side," the rise of activist thinking in education and journalism, and the growing appeal of contrarian figures who seem to thrive on distrust.

They also get into the war in Ukraine, Israel and Gaza, Iran, isolationism, and why defending open inquiry matters most when it becomes inconvenient.

The Zodiac Killer has been treated for decades as America's ultimate unsolved true crime mystery: one mysterious killer, taunting letters, cryptic ciphers, a strange costume, and a trail of victims across Northern California.

Eddie McNamara thinks that story is wrong.

The victims were real, the crimes were real, but the single mastermind may have been a media-made myth.

Eddie McNamara is the author of Zodiactually: The Real Story of a Fake Serial Killer, Toss Your Own Salad: The Meatless Cookbook, Brooklyn Hardcore, and Two Fare Zone. He's a former cop, 9/11 first responder, trained chef, and a columnist for Penthouse magazine.

Michael Shermer speaks with Oxford philosopher Carissa Véliz about the long human desire to know the future—from ancient oracles and astrology to AI, surveillance capitalism, predictive policing, and "data-driven" decision-making. Véliz argues that prediction is rarely neutral: the same machinery that collects personal data also tries to forecast behavior, and once institutions start treating predictions as facts, forecasts can become tools of control.

The conversation gets into why privacy matters for democracy, how algorithms can turn human lives into self-fulfilling prophecies, and why extraordinary people often fall outside predictive models.

Shermer and Véliz also discuss the limits of science, the replication crisis, crime statistics, effective altruism, utilitarian ethics, and free will.

Carissa Véliz is an associate professor at the Institute for Ethics in AI at the University of Oxford. Her first book, Privacy Is Power (Melville House) was an Economist book of the year and has been published in seven languages. Her academic work has been published in The Harvard Business Review, Nature, AI & Society, and The American Journal of Bioethics, among others. Her new book is Prophecy: Prediction, Power, and the Fight for the Future, from Ancient Oracles to AI.

Batya Ungar-Sargon joins Michael Shermer for a wide-ranging conversation about the historical relationship between Jews and the American left, and why that relationship has become increasingly strained in recent years.

The discussion begins with the reaction to October 7 and the political language that quickly emerged around Israel, Palestine, power, oppression, and resistance. From there, Ungar-Sargon traces a longer history: Jewish life in early America, Jewish involvement in the labor movement, the Triangle Shirtwaist Factory fire, the civil rights movement, and the role many Jews played in shaping progressive politics in the 20th century.

Batya Ungar-Sargon is a columnist for The Free Press and the host of Batya! on NewsNation, where she is a weekend anchor. She holds a PhD in English from the University of California, Berkeley. Her new book is The Jews and the Left.

Jon Mills, a philosopher, psychoanalyst, and clinical psychologist, joins Michael Shermer to discuss how social justice ideology has moved from a concern with fairness and equal treatment into a rigid moral framework built around oppressors and victims, privilege and disadvantage, good and evil.

Their conversation focuses on the tension between compassion and truth: how to take injustice seriously without reducing people to identity categories, what happens when clinicians bring activism into the therapy room, why biological reality has become politically charged, and whether "wokeness" is beginning to lose its hold on public life.

Jon Mills is a Canadian philosopher, psychoanalyst, and clinical psychologist. He is Honorary Professor, Department of Psychosocial & Psychoanalytic Studies, University of Essex, UK, on faculty in the Postgraduate Programs in Psychoanalysis & Psychotherapy, Gordon F. Derner School of Psychology, Adelphi University, USA, and on faculty and a Supervising Analyst at the New School for Existential Psychoanalysis, USA. Recipient of numerous awards for his scholarship including 5 Gradiva Awards, he is the author and/or editor of over 35 books in psychoanalysis, philosophy, psychology, and cultural studies including most recently End of the World: Civilization and Its Fate. In 2015 he was given the Otto Weininger Memorial Award for Lifetime Achievement by the Canadian Psychological Association.

America's criminal justice debate usually gets reduced to two options: abolish the system or lock everyone up forever. Economist Jennifer Doleac thinks the data point somewhere else entirely.

In this episode, Michael Shermer speaks with Doleac about what rigorous research can tell us about crime, punishment, deterrence, prison reform, and public safety.

Doleac argues that America has built much of its criminal justice system backwards: too little certainty of being caught, too much faith in long prison sentences, and not enough testing of what actually works.

Jennifer Doleac is the Executive Vice President of Criminal Justice at Arnold Ventures, a philanthropy focused on evidence-based policy. Before that, she spent over a decade as an economics professor, conducting academic research. She is a leading expert on the economics of crime and discrimination, and a vocal proponent of using rigorous research to inform policy. She frequently writes for outlets including The Washington Post, TIME, and Bloomberg Opinion, and she hosts the Probable Causation podcast on law, economics, and crime. Doleac holds a PhD in Economics from Stanford University. Her new book is The Science of Second Chances: A Revolution in Criminal Justice.

Gad Saad returns to discuss his new book Suicidal Empathy: Dying to Be Kind, a provocative argument that empathy is not a moral trump card. Empathy can illuminate suffering, but it can also distort judgment when it is treated as an unquestionable virtue, applied selectively, or insulated from consequences.

Saad's central claim is that many Western institutions have learned to treat compassion as a substitute for judgment. In practice, he argues, this can mean extending sympathy toward the wrong targets (for example, criminals over victims), excusing destructive behavior, rewarding ideological conformity over truth, or denying uncomfortable facts in the name of kindness. The result is a moral framework that feels humane in the moment but can produce outcomes that are unfair, irrational, or even dangerous.

The conversation covers cultural relativism, islamism, suicide cults, kamikaze pilots, immigration and foreign aid, forbidden knowledge, and why some ideas spread and take hold while others fade away.

Gad Saad is a professor and an evolutionary behavioral scientist. He has authored numerous scientific papers and pioneered the use of evolutionary psychology in marketing and consumer behavior. In addition to his scientific work, he often writes and speaks about idea pathogens that are destroying logic, science, reason, and common sense. He is the host of The Saad Truth podcast. His new book is Suicidal Empathy: Dying to Be Kind.

We like to think the future can be figured out if we just gather enough information. Pick the right expert, read the right forecast, find the right framework, and the fog will lift.

Simone Stolzoff argues that this impulse often works against us. In his new book How to Not Know, he makes the case for getting better at uncertainty—not as a slogan, and not as an excuse to believe nothing, but as a practical skill: knowing when to act without perfect information, when to distrust easy answers, when to revise your beliefs, and when uncertainty might point toward something worth discovering.

The conversation covers why people cling to conspiracy theories, what cults offer that ordinary life does not, why experts are so bad at predicting the future, how the replication crisis changed psychology, what relationships teach us about irreversible choices, and why the unknown is not only frightening, but also where possibility begins.

Simone Stolzoff is a San Francisco–based journalist and author. His work has appeared in The New York Times, The Atlantic, and on the TED stage. He is a graduate of Stanford University and the University of Pennsylvania. His debut book, The Good Enough Job, has been translated into more than a dozen languages. His new book is How to Not Know: The Value of Uncertainty in a World That Demands Answers.

Neil deGrasse Tyson returns to The Michael Shermer Show to talk UFOs, aliens, government files, eyewitness testimony, and his new book Take Me to Your Leader: Perspectives on Your First Alien Encounter.

The conversation moves from the limits of eyewitness testimony to why secret military files are not evidence of hidden alien bodies, why high-G turns would turn biological pilots into "a pile of goo," why the universe almost certainly contains life elsewhere, and why the real question is not whether aliens exist—but whether anyone has actually produced one.

Neil deGrasse Tyson is an astrophysicist and the director of the Hayden Planetarium at the American Museum of Natural History, where he has served since 1996. Dr. Tyson is also the host and cofounder of the Emmy-nominated popular podcast StarTalk and its spinoff StarTalk Sports Edition, which combine science, humor, and pop culture. He is a recipient of twenty-three honorary doctorates, the Public Welfare Medal from the National Academy of Sciences, and the Distinguished Public Service Medal from NASA. Asteroid 13123 Tyson is named in his honor. His new book is Take Me to Your Leader: Perspectives on Your First Alien Encounter.

Journalist and author Ashley Rindsberg returns to The Michael Shermer Show for a wide-ranging conversation about the new media world: influencers with audiences larger than cable networks, conspiracy theories built for engagement, and the collapse of trust that followed COVID, censorship, and years of institutional overreach.

Ashley Rindsberg is an investigative journalist and author focused on digital information platforms. He is the founder and editor of NPOV, which looks at how knowledge platforms like Wikipedia are used to distort information and seed damaging narratives online. He is the author of The Gray Lady Winked, an expose on The New York Times, and serves as Editor-at-Large at Pirate Wires, a leading tech, politics, and culture outlet.

Free speech was supposed to be the great settled achievement of liberal democracy. Then came social media, cancel culture, campus speech battles, hate-speech laws, authoritarian tech control, and a new era of governments pressuring platforms from every direction.

Michael Shermer speaks with free speech scholar Jacob Mchangama about why speech protections are weakening around the world—not only in dictatorships, but inside democracies. Their conversation moves from the First Amendment and January 6 to hate speech laws in Europe, Section 230, Elon Musk and X, online anonymity, social media bans for minors, and the enormous promise and danger of AI.

Mchangama argues that censorship is less a left-wing or right-wing impulse than a human one: once people gain power, the urge to silence enemies becomes almost irresistible. The real test of free speech is not whether we defend ideas we like, but whether we resist using state power against speech we despise.

Jacob Mchangama is the founder and executive director of The Future of Free Speech and a research professor at Vanderbilt University. His new book is The Future of Free Speech: Reversing the Global Decline of Democracy's Most Essential Freedom.