Goodbye Baby Boom—Hello Population Bust: How a 60% Drop Could Change Everything (#257)

Global birth rates are collapsing—sometimes to half the level needed to keep populations stable. UT-Austin’s Michael Geruso explains how that trend could shrink the world’s population from eight billion to three billion in just three generations. He unpacks the silent drivers behind falling fertility, why cash incentives rarely work, and what disappearing people mean for innovation, cities, pensions, and geopolitical power. If you’ve never worried about a world that’s too small, this conversation will change your mind.

We’ve landed on the moon and built global networks—yet most of us don’t understand how a toilet works. Cognitive scientist Philip Fernbach explores the paradox of human intelligence: our success depends on shared knowledge, not personal depth. But that creates an illusion—we think we know far more than we do. How does this illusion quietly shape our politics, beliefs and risks and is it time we all got a little more curious - and less certain? 

Love isn’t just a feeling—it’s a science. Arthur Aron, the psychologist behind the 36 questions that went viral, shares what really makes people fall and stay in love. You’ll hear why new experiences matter, how to deepen intimacy, and what most couples get wrong.Whether you’re looking to strengthen a relationship, connect more deeply with friends, or understand human bonding, this is a conversation you won’t want to miss. 

Jake Sullivan spent four years at the highest level of U.S. foreign policy—sitting across the table from Vladimir Putin, Xi Jinping, and leading the national response to crises like Ukraine, Taiwan, cyberattacks, and AI risks.He shares a rare look behind the scenes of global power, including: what intelligence gets wrong (and why); how AI, drones & disinformation are reshaping war; why the U.S. is more vulnerable than it seems and what a China-Taiwan conflict might actually look like.His insights are sharp, urgent—and surprisingly personal.

What if we could rewrite the code of life—just like editing a Word doc?Gene-editing pioneer David Liu takes us behind the scenes of the revolutionary tools transforming medicine. He’s the Harvard scientist who invented base editing—a breakthrough that lets scientists fix a single DNA letter to correct genetic disease at its root.This is science fiction come to life—and it's happening now. He edits DNA like we edit text. Come meet the man who's changing lives, one letter at a time. 

What if music, color, scent, and art could actually change your brain? Science now shows they do.Join Susan Magsamen, Executive Director of the International Arts + Mind Lab at Johns Hopkins, as she explores how art and beauty impact our brains and well-being. From the transformative power of music to the subtle magic of sensory environments, she reveals how simple aesthetic moments can boost your health and joy.

Mississippi is richer than France. No, really. The poorest U.S. state now has a higher GDP per person than France, the U.K., Italy, and Spain. How did that happen? Don’t miss this eye-opening episode with George Mason University's Tyler Cowen. 

China is on the march, is very determined, and has some significant advantages over the U.S. What are they and how should we respond? Two esteemed China experts, former U.S. Deputy Secretary of State Kurt Campbell and National Security Council Deputy Senior Director for China Rush Doshi, say the key is to counter China’s enormous scale by finding common cause with allies.  Listen, and learn a lot.

As the dust settles on the 2024 presidential election, now is an excellent time to take a fresh, clear-eyed look at what really happened. Join us as Larry Bartels, political scientist extraordinaire and Co-Director of Vanderbilt University's Center for the Study of Democratic Institutions, explains why Trump’s win was not unusual and the roles played by the economy, loyalty to the political parties, and Trump’s unique personality.

What if your phone is quietly changing your brain—and your relationships? The brilliant Christine Rosen explores how digital life is reshaping everything from childhood to public discourse, often in ways we barely notice. With insight and urgency, she challenges the assumptions driving our always-online world.  This conversation will make you see your screen—and our society—differently.