Science Salon

In the U.S. alone, more than $400 billion are donated to charity each year—equivalent to two percent of American GDP. This generosity is wonderful, but these gifts don’t do nearly as much good as they could. In recent years, researchers have started studying the effectiveness of different charities, just as investors study the effectiveness of different companies. These researchers ask questions like: How much money does it cost for this charity to save someone’s life? The answers are stunning. Charity experts estimate that the most effective charities are about 100 times more effective than typical charities. For example, you can do more good by donating $100 to a highly effective charity than by donating $10,000 to a typical charity. Shermer and Greene discuss effective altruism, evidence-based philanthropy, and GivingMultiplier’s unique model for maximizing charitable impact. They explore moral judgment theories, from deontology to consequentialism, and delve into complex topics like donor fatigue, public

In The Suggestible Brain, cognitive psychologist Amir Raz delves into how suggestions can influence everything from wine preferences to memory and emotional reactions. As society grapples with misinformation, Raz’s research spans across cognitive psychology, sociology, and culture, emphasizing the profound impact of suggestion on both personal and collective levels. Raz’s expertise, merging magic with neuropsychology, unveils actionable insights for utilizing suggestion to enhance mental resilience and defend against manipulation. Dr. Raz’s career includes roles as Canada Research Chair and Director of the Institute for Interdisciplinary Brain and Behavioral Sciences. A speaker and author, his insights on suggestion have been widely recognized by media and academic audiences. His work, grounded in extensive research and engaging storytelling, highlights the interconnectedness of suggestion with consciousness, memory, and identity. Shermer and Raz discuss: the evolutionary basis of suggestibility, how brain im

Guy P. Harrison is an acclaimed author of nine thought-provoking books that encourage curiosity and critical thinking. In this engaging episode, he and Michael Shermer discuss how science fiction inspires us to think beyond the ordinary and explore the vast possibilities of human progress. From his latest work to his passion for rational dialogue, Harrison’s insights are both inspiring and accessible. Shermer and Harrison tackle a diverse range of topics, including the societal value of science fiction, the flawed debates about religion and evolution, and why humanity might ultimately prevail despite existential threats like AI. They examine UFOs and the Fermi Paradox, discuss redefining atheism, and share optimism about human progress. Harrison’s engaging insights inspire curiosity and critical thinking throughout the episode. Guy Harrison is an award-winning writer and author of nine books, including Think: Why You Should Question Everything, At Least Know This, 50 Reasons People Give for Believing in a God

Historically, Western societies were defined by stark divisions between wealth and poverty, with only a slim middle class. Today, the economic landscape has transformed, largely through political and institutional changes that have enabled wealth distribution and middle-class growth. Economist Daniel Waldenström explores this evolution, highlighting that effective social and tax policies are essential to advancing shared prosperity without undermining entrepreneurship. Using rigorous research, Waldenström’s work demonstrates how wealth accumulation patterns have shifted since the 1800s, emphasizing the significant role of increased access to education, property ownership, and pensions. His insights advocate for policies that promote wealth creation across all social tiers, ensuring sustainable growth and financial security for future generations. Shermer and Waldenström cover the scientific basis of economics, how personal beliefs shape economic theories, and differences between income and wealth inequality.

Banco Popular, once a top global bank, collapsed unexpectedly in 2017. Investigative journalist Gareth Gore initially expected to find another case of capitalist greed, but instead uncovered a web of deception orchestrated by men linked to Opus Dei. Gore’s investigation revealed decades of hidden corruption, with Opus Dei using its control over the bank to amass wealth and spread its influence. Using access to insider accounts and bank records, Gore exposed how Opus Dei recruited vulnerable individuals—often children—into lives of servitude. His findings also unveiled Opus Dei’s financial ties to far-right movements, including its role in overturning Roe v. Wade, raising important questions about the forces shaping modern society. Shermer and Gore discuss Opus Dei’s role in the collapse of Banco Popular, its influence in politics, and the group’s history. They explore Opus Dei’s abusive practices, financial power, and efforts to spread its agenda, including through human trafficking and infiltration of instit

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 cosm

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: Civiliz

In this special solo episode, Michael Shermer reflects on the 2024 election.

In 2023, 107,543 Americans died from an overdose—over 75 thousand of those overdosed from fentanyl. This is almost double the number of people who died in car accidents or from gun homicides that year. Fentanyl has been cut into heroin for years, but now is often mixed into meth and cocaine, fueling rising death counts for those drugs, a troubling development, considering that Americans are much more likely to try meth and cocaine than heroin. In Canada, the numbers are similarly astronomical, and fentanyl deaths have marched upward in Australia and many European countries as well. Ten years ago, fentanyl and its analogues overtook heroin to become the deadliest drug in Sweden. “Fentanyl is the game changer,” Special Agent in Charge James Hunt of the US Drug Enforcement Administration (DEA) told Vice News. “It’s the most dangerous substance in the history of drug tracking. Heroin and cocaine pale in comparison to how dangerous fentanyl is.” Ben Westhoff is a best-selling investigative journalist focused on dr

Dr. Warren Hern’s book, Abortion in the Age of Unreason: A Doctor’s Account of Caring for Women Before and After Roe v. Wade, chronicles the difficult realities of providing abortion care amidst a polarized political and social climate. Drawing from personal experiences, Hern describes protecting patients and staff from aggressive protesters and emphasizes the critical need for abortion services to protect women’s health. His work also highlights insights from his research in Latin America, underscoring abortion’s role in addressing national and global public health challenges. Hern argues that the recent dismantling of Roe v. Wade has intensified a long-standing crisis, which now endangers democracy as political groups exploit the issue to gain power. His book exposes the real risks of restricted access and urges for political action to safeguard reproductive rights, stressing that women’s need for safe abortion services is an essential, ongoing component of healthcare and freedom. Warren M. Hern, M.D., is k

In this solo episode, Michael Shermer discusses the upcoming election, reflecting on the historical context of past elections and the political polarization that has intensified over the years. 

Edward Goldberg analyzes the United States’ emergence as the global liberal hegemon, detailing its geographical and economic advantages that led to its post-World War II dominance. He argues that America’s shift from merely being an international police force to acting as the world’s central banker solidifies its unique global role. Goldberg further considers how this leadership affects both the country and individual American citizens. Goldberg’s expertise in international political economy gives insight into how the U.S. has maintained its global leadership. As a central figure in international business and academic circles, he evaluates whether the United States is still capable of managing global crises like climate change and financial contagion, as well as the challenges posed by competing world powers. Shermer and Goldberg discuss: the historical factors that led to America’s rise as a global leader, including its economy and political culture. They explore the future of U.S. global dominance, its alli

Across America, a storm is brewing as the Christian Right gains unprecedented power. From book bans to anti-trans laws, this political force is reshaping the nation. In her book, Wild Faith, author Talia Lavin delves deep into the motivations of this movement, exploring its segregationist past and apocalyptic future through primary sources and firsthand accounts. Lavin introduces readers to a cast of characters within the Christian Right, including self-proclaimed prophets, Christian militias, and influential political figures. She examines the movement’s impact on various aspects of society, from abortion rights to child welfare. Wild Faithconfronts the pressing question of whether American democracy can withstand this organized theocratic movement. Shermer and Lavin discuss historical phenomena like the Satanic Panic and Recovered Memory Movement, as well as contemporary issues such as the movement’s influence on societal institutions, opposition to abortion and LGBTQ+ rights, and Christian Zionism. The con

Mark Weinstein, a tech entrepreneur, privacy expert—and one of the visionary inventors of social networking—explores how social platforms could be redesigned to foster critical thinking, mental health, privacy, and democracy in his book Restoring Our Sanity Online. The book offers actionable solutions for reimagining our digital landscape, addressing crucial issues like user empowerment, privacy concerns, and protecting children from social media’s negative impacts. Weinstein, founder of privacy-focused platform MeWe and a frequent media commentator, brings his expertise in social networking and online privacy to examine emerging technologies and their implications for social media’s future. His book provides insights for users, parents, educators, and policymakers seeking to understand and improve our digital environment. Shermer and Weinstein discuss AI’s impact on social media platforms and personal relationships, solutions to combat teen mental health issues, and strategies for parental control. They exam

Neal Stephenson is the #1 New York Times bestselling author of novels including Termination Shock, Seveneves, Cryptonomicon, and Snow Crash. His works blend science fiction, historical fiction, and cyberpunk, exploring mathematics, cryptography, philosophy, and scientific history. Born in Fort Meade to a family of scientists, he holds a degree in geography and physics from Boston University. As noted by The Atlantic, his prescient works anticipated the metaverse, cryptocurrency, and AI revolution. His latest novel is Polostan, the first installment in his Bomb Light cycle. Shermer and Stephenson discuss: professional and speculative fiction writing, the interplay of genetics and fate, historical contingency (particularly regarding Hitler and nuclear weapons), atomic bomb development and ethics, game theory in nuclear deterrence, cryptocurrency, AI advancement and mind uploading, human evolution, Mars colonization politics, and philosophical concepts like Peirce’s Fallibilism and Platonic realism.

How should we go about understanding LLMs? Do these language models truly understand what they are saying? Or is it possible that what appears to be intelligence in LLMs may be a mirror that merely reflects the intelligence of the human observer? In this episode, Terry Sejnowski explores the history and future of AI and its profound implications for understanding the human mind. He explains AI’s evolution from early logic-based systems to cutting-edge advancements like deep learning and large language models, including ChatGPT, emphasizing the need for clear operational definitions and a strong mathematical foundation to advance AI research. Sejnowski also highlights the parallels between scientific discovery and engineering, discussing practical applications of AI in areas such as language translation and weather prediction. Terry Sejnowski is the Francis Crick Chair at The Salk Institute for Biological Studies and a Distinguished Professor at the University of California, San Diego. He has published over 50

First Amendment scholar and philosopher Tara Smith offers a comprehensive analysis of free speech, situating her work within the broader intellectual landscape. She examines the perspectives of historical figures like John Locke, Thomas Jefferson, and John Stuart Mill while addressing contemporary issues such as social media speech, “cancel culture,” and religious exemptions. Smith’s approach involves dissecting key concepts like censorship and freedom, exploring the crucial distinction between speech and action. Tara Smith is Professor of Philosophy at the University of Texas at Austin, where she has taught since 1989. A specialist in moral, legal, and political philosophy, she is author of the books Judicial Review in an Objective Legal System (Cambridge University Press, 2015), Ayn Rand’s Normative Ethics: The Virtuous Egoist (Cambridge, 2006), Viable Values: A Study of Life as the Root and Reward of Morality (Rowman and Littlefield, 2000), and Moral Rights and Political Freedom (Rowman and Littlefield 199

Ask a question and participate in future episodes. The nocebo effect demonstrates how the mind can cause illness through negative expectations, as highlighted by a famous incident in a U.S. textile factory in the 1960s. Workers believed a bug was causing dizziness, nausea, and other symptoms, yet no physical cause was found. This mysterious outbreak underscores the potent influence of beliefs on health, a phenomenon that’s becoming increasingly relevant in understanding modern psychosomatic conditions like the controversial Havana Syndrome. In this episode, Michael H. Bernstein, an expert on placebo and nocebo effects, explains how psychological factors can result in perceived physical harm. As co-author of The Nocebo Effect: When Words Make You Sick, Bernstein shares insights into the intersection of psychology, medicine, and public health. His research focuses on reducing opioid dependence by leveraging the placebo effect, while also exploring the ethical concerns surrounding nocebo-related side effects. Mi