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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August 4, 202639 min
Nobel Winners Sign SNEAKER Deals!
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.
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
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Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
July 6, 202654 min
The Milky Way Is ALIVE - With Dr. Moiya McTier!
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….
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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 book, The Milky Way: An Autobiography of Our Galaxy.
She writes on her website: "I truly am my ancestors' wildest dream. I grew up in a log cabin in the middle of the woods in rural Pennsylvania. I didn't have TV, a heating system, or running water. My chores included carrying buckets of water from our outdoor pump and chopping firewood to fuel our wood-burning stove. The nearest confederate flag was flying much closer than the nearest Black person. It was an interesting place and way to grow up. Now I have 4 Ivy League degrees and work my dream job as a full-time science communicator in New York City. I've given hundreds of talks about science around the world, written a science fiction novel, helped design exhibits for the New York Hall of Science. I write books, host shows, and consult on movies."
Tune in to this gigantic, galaxy spanning (and spawning!) episode in which Moiya asks, what the if… the Milky Way were SENTIENT?
Visit Dr. McTier's website: moiyamctier.com
Learn more about her podcast: moiyamctier.com/exolore
Learn more about her book: https://www.grandcentralpublishing.com/titles/moiya-mctier/the-milky-way/9781538754153/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Email us at feedback@whattheif.com and let us know what's in your imagination. No idea is too small, or too big!
Don’t miss an episode! Subscribe at WhatTheIF.com
Keep On IFFin',
Philip, Matt & Gaby
July 1, 202645 min
GOOP Powers The WORLD!
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 curiosity and runs it straight off a cliff, with a detour through some 150-year-old physics and a quick tangent into how your own cells pull the same trick. Things get weird. Things get sticky. Bring a valve.
Based on "'Light in a Bottle' Liquid Can Harvest and Store Energy From Multiple Sources" by Laura Martín Agudelo, published in Science on June 19, 2026. https://www.science.org/content/article/light-bottle-liquid-can-harvest-and-store-energy-multiple-sources
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
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Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
June 28, 202646 min
BIRDS Aren't REAL!
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, phased-array antennas that stitch many small dishes into one giant eye, and the actual military project to train pigeons to pilot missiles. Chase a ridiculous question far enough and you land somewhere inspiring: face to face with how inventive people get when they're trying to understand the world.
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
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Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
June 17, 202638 min
ANTIMATTER On Demand!
ANTIMATTER On Demand! by Philip Shane, Matt Stanley, Gabrielle Paniccia
June 9, 202643 min
WHO The If - GABY!
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 world? Step into a lab alive with invisible wonders, head out to a beach where secret animal rituals are hiding in plain sight, and meet the kid who once chased frogs across a backyard and grew into a scientist chasing the deepest mysteries of life.
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
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Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
June 3, 202639 min
TOO SOCIAL Media!
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 crash course in why we turn feral online, a trip back to the dial-up Stone Age, and a rowdy brawl over whether forced honesty saves us or sinks us. So log in as your true self and come hang out where everybody finally knows your name.
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
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Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
May 20, 202654 min
The Other Theory of EVOLUTION!
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 busy reshaping the planet. Stretch your neck. Reshape your descendants. Welcome to the Lamarckian universe.
Want more Jessica? Grab her book at https://www.penguinrandomhouse.com/books/763654/the-power-of-life-by-jessica-riskin/
Find her at Stanford here: https://history.stanford.edu/people/jessica-riskin
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In the show, I mentioned a wonderful note from longtime listener Steve Scalici about our recent "no gasoline" episode. Here's Steve's full message:
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From: Steve Scalici
Subject: No gasoline, phase 2
"Maybe THE best IFisode I've heard, perhaps because I've been noodling with that inevitable coming world without petroleum…how'd we function, how would society break down, would we be in a Soylent Green-scape?
"Seems to me that this too was a corollary of the IF I sent in regarding an aeroplane-less world. My supposition culminated with small self-supporting cities of a certain drivable radius from the city limits.
"But overlaying the petro-less factor into the equation, we would devolve berryyyyy quickly to an agrarian localized world perhaps reminiscent of sometime in the 1800s.
"The curveball to this is the Industrial Revolution would not, could not be. No power source! This leads me back to my Malthusian philosophy is coming: population does invariably increase when the means of subsistence increase.
"Well then the opposite is true…population would curtail as our means of food harvesting ebbs. And it'd happen rather quickly as our food stocks diminish and famine would occur.
"Back to the Middle Ages of castles, moats, bows and arrows, and self-sustained populations.
"So my newer IF is 'how and what would a powerless world happen, assuming a stasis occurs in, say, 20 years?'
"Shout out to my grandson Matteo here as we drive to a gas station to fill up, he posed a mini-IF: where does the gas come from. Tough to explain to a 5-year-old, but then last week's IF struck and I listened to it multiple times with my wife hearing it replayed and yelled 'WTF!'"
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
——
Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
May 16, 202643 min
Moon Babies Meet EARTH - Part 2!
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 home look stranger than it has any right to. Settle in for the second half of a two-part thought experiment about what it's like to visit the planet everyone else calls home.
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
——
Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
May 9, 202642 min
The Last DROP Of Gasoline!
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 experiment with some genuinely surprising science along the way.
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When she's not studying zombie fungus at Harvard or helping us break the universe every week, our very own Gaby Paniccia writes science fiction. Her short story "The Automatic Grocery Store" is now featured on the popular podcast Escape Pod! Listen here: https://escapepod.org/2026/02/19/escape-pod-1033-the-automatic-grocery-store/
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Check out our membership rewards! Visit us at Patreon.com/Whattheif
——
Got an IF of your own? Want to have us consider your idea for a show topic? Send YOUR IF to us! Visit https://whattheif.com/contact and let us know what's in your imagination. No idea is too small, or too big!
Keep On IFFin',
Philip, Matt & Gaby
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