In a few decades, a torrent of new evidence and ideas about human evolution has allowed scientists to piece together a more detailed understanding of what went on thousands and even millions of years ago. Lesley Newson and Peter Richerson, a husband-and-wife team based at the University of California, Davis, have spent years together and individually researching and collaborating with scholars from a wide range of disciplines to produce a deep history of humankind. In A Story of Us, they present this rich narrative and explain how the evolution of our genes relates to the evolution of our cultures.

Everyone has heard of the term “pseudoscience”, typically used to describe something that looks like science, but is somehow false, misleading, or unproven. Many would be able to agree on a list of things that fall under its umbrella — astrology, phrenology, UFOlogy, creationism, and eugenics might come to mind. But defining what makes these fields “pseudo” is a far more complex issue. Given the virulence of contemporary disputes over the denial of climate change and anti-vaccination movements — both of which display allegations of “pseudoscience” on all sides — there is a clear need to better understand issues of scientific demarcation. Shermer and Gordin explore the philosophical and historical attempts to address this problem of demarcation.

Disinformation. Trolling. Conspiracies. Social media pile-ons. Campus intolerance. On the surface, these recent additions to our daily vocabulary appear to have little in common. But together, they are driving an epistemic crisis: a multi-front challenge to America’s ability to distinguish fact from fiction and elevate truth above falsehood. In episode 190, Michael Shermer speaks with Jonathan Rauch as he reaches back to the parallel eighteenth-century developments of liberal democracy and science to explain what he calls the “Constitution of Knowledge” — our social system for turning disagreement into truth. His book is a sweeping and readable description of how every American can help defend objective truth and free inquiry from threats as far away as Russia and as close as the cellphone.

Imagine that two doctors in the same city give different diagnoses to identical patients. Now imagine that the same doctor making a different decision depending on whether it is morning or afternoon, or Monday rather than Wednesday. This is an example of noise: variability in judgments that should be identical. Shermer speaks with Nobel Prize winning psychologist and economist Daniel Kahneman about the detrimental effects of noise and what we can do to reduce both noise and bias, and make better decisions in: medicine, law, economic forecasting, forensic science, bail, child protection, strategy, performance reviews, and personnel selection.

In this conversation about his memoir and National Geographicspecial on his life, Robert Ballard takes us along his many journeys to find the Titanic, the Lusitania, the Bismarck, Nazi submarine U-166, the USS Yorktown, JFK’s PT 109, and two missing nuclear submarines under the cover of searching for the Titanic. Ballard is also a scientist, and he recalls his many important discoveries that include 750°F hydrothermal vents, undersea volcanoes, black smokers, and the confirmation of the theory of plate tectonics. Now the captain of E/V Nautilus, a state-of-the-art scientific exploration vessel rigged for research in oceanography, geology, biology, and archaeology, leads young scientists as they map the ocean floor, collect artifacts from ancient shipwrecks, and relay live-time adventures from remote-controlled submersibles to reveal amazing sea life. For the first time, Ballard gets personal, telling the inside stories of his adventures and challenges as a midwestern kid with dyslexia who became an internationally renowned ocean explorer. Here is the definitive story of the danger and discovery, conflict and triumph that make up his remarkable life. Among his many honors he holds the Explorers Club Medal, the National Geographic Hubbard Medal, and the National Endowment for the Humanities Medal.

In this dialogue, based on the new edition of his highly acclaimed bestseller (over 5 million copies sold in over 40 languages), Robert Cialdini — New York Times bestselling author of Pre-Suasion and the seminal expert in the fields of influence and persuasion — explains the psychology of why people say yes and how to apply these insights ethically in business and everyday settings. Shermer and Cialdini discuss: Cialdini’s Universal Principles of Influence and 7 Principles of Persuasion, pluralistic ignorance, free will/determinism, cults, conformity, #BLM, #metoo, antiracism, social justice, and human rights. How rational are humans? Do we default to truth and naturally believe what people tell us? Are we natural-born skeptics or natural-born sheep?

In this conversation, based on the book The Spirit of Green: The Economics of Collisions and Contagions in a Crowded World, Nobel Prize-winning pioneer in environmental economics Dr. Nordhaus explains how and why “green thinking” could cure many of the world’s most serious problems — from global warming to pandemics. Solving the world’s biggest problems requires, more than anything else, coming up with new ways to manage the powerful interactions that surround us. For carbon emissions and other environmental damage, this means ensuring that those responsible pay their full costs rather than continuing to pass them along to others, including future generations. Nordhaus describes a new way of green thinking that would help us overcome our biggest challenges without sacrificing economic prosperity, in large part by accounting for the spillover costs of economic collisions. In a discussion that ranges from the history of the environmental movement to the Green New Deal, Nordhaus explains how rethinking economic efficiency, sustainability, politics, profits, taxes, individual ethics, corporate social responsibility, finance, and more would improve the effectiveness and equity of our society.

Beginning in the late 19th century, many intellectuals began to insist that scientific knowledge conflicts with traditional theistic belief — that science and belief in God are “at war.” Philosopher of science Stephen Meyer challenges this view by examining three scientific discoveries with decidedly theistic implications. Building on the case for the intelligent design of life that he developed in Signature in the Cell and Darwin’s Doubt, Meyer claims that discoveries in cosmology and physics coupled with those in biology help to establish the identity of the designing intelligence behind life and the universe. Previously Meyer refrained from attempting to answer questions about “who” might have designed life. Now he provides an evidence-based answer to perhaps the ultimate mystery of the universe. Shermer responds to each claim and a stimulating and enlightening conversation ensues. Note: It is Dr. Shermer’s intention in his podcast to periodically talk to people with whom skeptics and scientists may disagree. In some episodes Dr. Shermer tries to “steel man” a position held by someone with differing views — that is, he says in his own words what he thinks the other person is arguing — but in this case the other person is in the conversation and can represent his own position clearly, which is what happens. As well, such conversations enable principles of skepticism to be employed in ways constructive to those who hold views not necessarily embraced by skeptics and scientists. Such principles should be embraced by all seekers of truth, and that is why we want to talk to people with whom we may disagree.

In this special episode of the show Shermer and Green discuss one of the most important and yet poorly understood concepts in modern society: money and why it matters. They discuss: the origins of money, and how to make it work for you, how the stock market works, the power of compound interest, the secrets of millionaires, the difference between a IRA, 401(k), and a Roth IRA, hedge-fund managers and investment advisors, the relationship between risk and reward, the relationship between saving and spending, the problem with free market capitalism, money, happiness, and meaning, and the role of luck and contingency in how lives turn out.

Shermer, Weiss, and Bartning discuss: why we need the Foundation Against Intolerance & Racism (FAIR) when we have the ACLU, the SPLC, etc.; Richard Dawkins canceled by the AHA; hate speech as violence; Liberal and Conservative attitudes toward free speech and how they shifted; private vs. public speech; government censorship vs. cancel culture; anti-Semitism on the Left and the Right; QAnon; Israel and the BDS movement (Boycott, Divestments, Sanctions); What happened at The New York Times?; why free speech is foundational to other rights; and why we need to judge people based on the content of their character and not the color of their skin (or any other immutable characteristic).