Learn how to think like EINSTEIN! Every week we learn science running imaginative thought experiments. Our brilliant guests are some of the world’s greatest science fiction writers, scientists & science communicators. Leap into a journey to answer the most fascinating question in the universe: What The IF?
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What the if scientists were as famous as football stars? Picture packed bars, roaring crowds, and a physicist on the big screen getting absolutely destroyed by a rival's data. Come find out who wins. Inspired by "What People Get Wrong About Scientists" by Dava Sobel, Scientific American, June 16, 2026. —— When she's not studying zombie fungus at Harvard or helping us break the universe every week,…
The whole crew is off on separate adventures this week, so we've unlocked the vault for an encore of one of our most popular episodes ever. Get ready to meet a galaxy ready to tell its own life story…. —— Our special guest this week is Dr. Moiya McTier, “Folklorist to the stars & Astrophysicist to the folks.” Dr. McTier is the host of the popular science podcast Exolore, and the author of the new…
What the if one gooey substance could drink up every kind of energy around it, from sunlight and heat to a stray spark or even the smack of a moving hand, and then hand it all back the instant you wanted it? Picture a world where that Goop is as cheap and common as tap water, quietly rewiring how everything gets powered, protected, and paid for. This one starts with a real, very early lab…
What the if birds aren't actually birds? Play it straight for a second: somewhere between 1959 and 1971, the government quietly swaps every bird for a surveillance drone, and the cover-up runs deeper than a single federal agency. Chasing the premise turns up some genuinely real science — Cold War spy satellites that parachuted film canisters down from space to be caught midair by pilots,…
ANTIMATTER On Demand! by Philip Shane, Matt Stanley, Gabrielle Paniccia
Behind every voice you've come to love on this show is a life full of stories you've never heard. With our eighth anniversary just around the corner, we're doing something we've never done: each of us takes a turn in the guest's chair to answer all the questions the rest of us have always wondered about. First up is Gaby, a microbiologist at Harvard. What's it really like to spend your days in her…
Listener Kevin Towers asks: what the if the internet made everyone use their real, traceable name? No usernames. No masks. No hiding behind a clever handle at 2am. In this universe, every comment you fire off comes permanently stapled to your actual identity, your job, and your reputation. Would all that sunlight finally make us kind? Or would we go quiet, too nervous to ever post again? There's a…
What the if Lamarck was right? Stanford historian Jessica Riskin, author of "The Power of Life," is our guide into a universe where living things aren't passive passengers waiting for evolution to happen to them, but the active architects of their own bodies, their offspring, and the world around them. The line between creature and environment dissolves. Even the smallest beings turn out to be…
What the if you were born on the Moon and Earth was the alien planet? Picking up from last month's cliffhanger, our travelers from the lunar surface finally touch down — and nothing about this place is what they expected. There's some physics, some biology, a detour through ancient Greece, and a first encounter with the locals that nobody could have prepared for. The view from another world makes…
Listener Helina asks: what the if we just pumped the last drop of gasoline? The answer goes well beyond empty parking lots and quiet highways. Along the way there's some chemistry, some geology, a detour through ancient history, and a look at how a single resource quietly weaves through agriculture, manufacturing, transportation, and the food on your plate. Join us for this super fun thought…
