Interesting Ideas

Is the United States victimized by trade? What causes trade deficits? Are higher tariffs a good idea? Can manufacturing jobs return to the United States? Economist Doug Irwin of Dartmouth College answers these questions and more in this wide-ranging conversation with EconTalk's Russ Roberts.

How does a nice Jewish boy who is also a gay atheist have the chutzpah to lecture Christianity on its obligations to democracy? Listen to author Jonathan Rauch talk about his book Cross Purposes with EconTalk's Russ Roberts as Rauch makes the case for what he calls a thicker Christianity.

Economist Noah Smith was so focused on libertarianism's theoretical flaws, he overlooked its political importance. Trump's tariff policy opened his eyes and made him re-assess the virtues of both libertarianism and Econ 101. Listen as he and EconTalk's Russ Roberts explore the way political competition has shaped economic policy in surprising ways in recent years.

What if we could delay--or even prevent--Alzheimer's, cancer, and heart disease? What if much of what you know about aging is wrong? Listen as cardiologist and author Eric Topol of the Scripps Research Institute talks about his new book Super Agers with EconTalk's Russ Roberts. They discuss why your genes matter less than you think, how your immune system can help prevent cancer and Alzheimer's, and why a simple shingles vaccine could reduce the risk of dementia. From the surprising anti-inflammatory powers of Ozempic to the critical importance of deep sleep for brain detoxification, Topol shares insights that can extend your healthy lifespan.

Bright colors, long tails, and dances of seduction: they may hurt a bird's chances of survival in the wild, but they seem to increase the chances of reproduction. Is this all part of natural selection or is sexual selection its own force in the bird world? Is there such a thing as beauty for beauty's sake? What can we learn from birds about the human experience of beauty? Listen as author and naturalist Matt Ridley speaks with EconTalk's Russ Roberts about a puzzle that kept Darwin up at night and that still troubles modern evolutionary biologists.

How can the state of Colorado have nearly 700 sides? Why is a country's coastline as long as you want it to be? And how is it that your UPS driver has more routes to choose from than there are stars in the universe? Listen as mathematician Paulina Rowinska talks with EconTalk's Russ Roberts about the mathematical tricks hiding in plain sight with every map we use. From the Mercator projection that warped how we see the world to the London Tube map that reinvented urban navigation, they discuss how distorting geography shapes our ability to navigate reality.

A paradox of our time is our willingness to bare all to strangers while worrying about who exactly is watching us online and anywhere else. Listen as author Tiffany Jenkins discusses her book, Strangers and Intimates, with EconTalk's Russ Roberts. In this wide-ranging conversation, they explore the role of Martin Luther, J.S. Mill, reality TV, and social media, among other factors, in creating the norms of the public and private spheres over time and today.

Dwarkesh Patel interviewed the most influential thinkers and leaders in the world of AI and chronicled the history of AI up to now in his book, The Scaling Era. Listen as he talks to EconTalk's Russ Roberts about the book, the dangers and potential of AI, and the role scale plays in AI progress. The conversation concludes with a discussion of the art of podcasting.

Does technology liberate us or enslave us? How do our social interactions affect our sense of self and our emotional health? Listen as author and master teacher Leon Kass and EconTalk's Russ Roberts do a close reading of a few paragraphs of Jean-Jacques Rousseau and explore some of the deepest aspects of our relationships with each other and with our technology.

How much of our success or failure is written in our genes? How much is under our control? Is it nature or nurture or is that dichotomy too simplistic? Hear EconTalk's Russ Roberts and psychologist Paul Bloom discuss why the nature vs. nurture question is actually worth taking seriously and how by understanding it we can help ourselves and others.

How can we explain the world's underlying order? How does consciousness emerge? And why do people from such different cultures have such similar near-death experiences? Listen as Ross Douthat, New York Times columnist and author of the new book Believe: Why Everyone Should Be Religious, argues that these and other unanswerable questions underscore his argument for the rationality of religious belief. He and EconTalk's Russ Roberts discuss Douthat's reasons for embracing faith with confidence, why science only bolsters his belief, and why he thinks that more religion would be a good thing for society.

Patrick McKenzie explains to EconTalk's Russ Roberts how credit cards work, who makes money from them and how, and gives his take on whether cash customers and debit card users subsidize the users of credit cards with reward programs.

Should monkeys have the same rights as humans? What about elephants, ants, or invertebrates? NYU philosopher Jeff Sebo makes the case for expanding your moral circle to many more beings than you might expect, including those based on silicon chips. Listen as Sebo and EconTalk's Russ Roberts discuss to whom and what we owe moral consideration, how we determine a being's intrinsic moral significance, and why we have ethical obligations to others, anyway. They also discuss human exceptionalism--the idea that humans should be prioritized over other beings.

At the heart of the success of the Beatles was the creative chemistry and volatile friendship between John Lennon and Paul McCartney. Listen as author Ian Leslie discusses his book, John & Paul: A Love Story in Songs with EconTalk's Russ Roberts. It's a deep dive into music and friendship as well as a revisionist history about how John and Paul created musical magic.

In honor of EconTalk's 1,000th episode, host Russ Roberts reflects on his long, strange journey from pioneer of the podcast format to weekly interviewer of leading economists, authors, and thinkers. Hear him answer your--and Chat GPT's--questions about why he got started, how he preps, and how he picks guests. He also explains why debate gave way to conversation--even about arguments with which he disagrees--and why EconTalk isn't only (or even mostly) about economics anymore. And yes, he shares some of his all-time favorite episodes and why he's so grateful to be the host.