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PODCAST

What The If?

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?

science & medicine history

All Episodes

00:41:12

Animals Train YOU!

What The If? ·

2025/10/15

Honey guide birds in Africa respond to culturally distinct human calls and lead hunters to beehives, where humans crack them open and birds feast on the exposed beeswax. But what the if humans could whistle for any wild animal to help with tasks? Call a deer to haul your Costco groceries home (extra cabbage as payment), summon crows to find your lost earring for peanuts, or live in a Viking village where bears help with the salmon harvest then hibernate in someone's hut all winter. From turkey

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00:49:54

Gravity Waves Go WIGGLE

What The If? ·

2025/09/19

What the if gravitational waves were big enough to see and feel? Instead of measuring distortions smaller than a proton, imagine watching your coffee table accordion in and out as ripples from distant black hole collisions pass through your local cafe. Every time Charlie the cat bats a toy mouse in Greenwich Village, sugar cubes scrunch in Williamsburg cafes. Brain surgeons would need to ask all of New York to sit perfectly still during operations to avoid gravitational interference. Even parking

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00:43:23

SLOW Light Speed!

What The If? ·

2025/08/22

What the if the speed of light crawled along at walking speed instead of zipping around at 300,000 kilometers per second? Tracey McCallum from Ontario wondered about this scenario. Imagine reaching for your cat only to grab empty air because she's already somewhere else entirely. Baseball becomes a black-hole-creating death sport when pitchers throw faster than light speed. Concert audiences sing different verses simultaneously depending on their distance from the stage. Fiber optic internet becomes

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00:51:55

Alien PETS!

What The If? ·

2025/08/15

Matt & Gaby are on assignment this week, so we present an encore presentation of one of our most popular episodes. This one is super fun and comes from Sept. 16, 2024. We hope you enjoy it.--- What if humans were the latest must-have pet for trendy aliens? This episode explores the hilarious and bizarre scenario of extraterrestrial beings snatching us up like puppies from a shelter. From alien vets poking and prodding us for space parasites to the culinary delights of human kibble, we dive into

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00:44:38

Nuclear REACTORS on the Moon!

What The If? ·

2025/08/08

What the if there was a nuclear reactor on the moon? NASA wants to launch a 100-kilowatt nuclear reactor to the lunar surface before 2030, powerful enough to run about 80 households. From the terrifying "tickling the dragon's tail" experiments at Los Alamos where scientists held uranium chunks apart with just a screwdriver, to the reality that plutonium feels "like holding a rabbit" when you touch it, explore how chain reactions work and why control rods keep reactors from exploding. Because nothing

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00:27:27

BIG Telescopes!

What The If? ·

2025/07/25

What the if we just kept making telescopes bigger and bigger until they're the size of entire planetary orbits? Starting with the new Vera Rubin Observatory's 21-foot camera that immediately spotted 2,000 asteroids, explore a world where astronomers drop telescopes throughout Earth's orbit to create a synthetic lens 200 million miles wide. Discover how gravitational lenses could let you see taxi cabs on distant planets, why you'd need to be a billion miles from the Sun to use it as a magnifying

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00:46:36

Silent SUBMARINE Seas!

What The If? ·

2025/06/13

What if climate change made submarines completely undetectable? As ocean temperatures rise, thermal layers are disrupting sonar so dramatically that entire regions become acoustic dead zones where submarines can hide indefinitely. Watch civilization adapt when nuclear subs vanish into warm water pockets, jellyfish swarms clog warship engines, and whale songs get drowned out by thermal chaos. Welcome to a world where jellyfish defeat the entire nuclear navy without even trying.Based on "Submarines

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00:49:22

BEFORE The Big BANG

What The If? ·

2025/06/09

What if the universe was stuck in an eternal cosmic Groundhog Day? Picture traveling backwards through time past the Big Bang only to discover you've looped right back to where you started - like a cosmic snake eating its own tail. Explore the mind-bending possibility that our entire universe repeats itself in endless cycles, where infinite copies of you exist scattered across millions of light years, all having this exact same conversation at different stages of cosmic evolution. Join cosmologist

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00:48:14

BADMINTON Bots Go Rogue!

What The If? ·

2025/05/30

What if teaching robots to play badminton was the beginning of the end? Scientists at ETH Zurich have successfully trained four-legged robots with mechanical arms to track shuttlecocks, navigate courts, and execute precise strikes against human players. But once these robots master the art of intercepting flying objects, what's next? Watch civilization unravel as badminton-playing robots evolve from harmless sporting partners to grenade-deflecting military units, eventually leading to wandering

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01:02:00

Can You BREATHE Like A WHALE? With Vanessa Pirotta!

What The If? ·

2025/05/26

We're off this week for the Memorial Day Holiday in the US so we present here one of our most popular episodes, a classic IF from August 13, 2021 with the incomparable marine biologist from Australia, Dr. Vanessa Pirotta. Take a deep breath and enjoy this deep dive!---- WHALES spend their entire lives inside a medium, water, in which they can’t actually breathe. So throughout the day, and the night, they have to swim to the surface to take a breath of that sweet, sweet ocean air… or they die! We

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00:28:01

SPACE Vacation On Earth!

What The If? ·

2025/04/26

Experience outer space without leaving Earth's atmosphere! Join planetary geologist and space lifestyle coach Kirby Runyon as he guides us through cosmic destinations on our own planet. From New Mexico's lava flows that mirror the Moon's dark volcanic plains to Northern Arizona's Meteor Crater (where three downtown Philadelphias could fit in the bottom), discover Earth's surprising cosmic connections. Float weightlessly in a modified Boeing 727 as it performs "parabolic arcs" giving you 20 seconds

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00:54:55

DIRE WOLVES Return!

What The If? ·

2025/04/18

Embark on a mind-bending thought experiment as our intrepid explorers dive deep into the annals of history, imagining how early humans might have unraveled the mysteries of solar eclipses. From cave paintings to mythical tales of celestial dragons, join the journey as Throg and his tribe attempt to make sense of the sun's sudden disappearance. Joins us as we ponder the birth of astronomy and the evolution of scientific thinking.--- Find out more about Gaby's science fiction short story! Here

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00:43:00

Microgravity MOVIE Making!

What The If? ·

2025/04/01

What if filmmakers took their cameras to space? Prepare for a world of zero-G cinematography! From weather-sealed cameras designed to handle unexpected astronaut vomit to the perpetual hum of life-support systems ruining your audio, documentary filmmaking in orbit presents unique challenges. Discover why the International Space Station's lighting is "just awful," how playing a guitar in microgravity sends you spinning in unexpected directions, and why the first task in every Mars simulation is

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00:41:25

2025-03-07 A World Without WINGS!

What The If? ·

2025/03/06

In a world where no creature ever evolved wings, island ecosystems would be barren wastelands, Darwin might never have filled his bathtub with broccoli, and wars might be less explosive due to the absence of bird guano for making gunpowder. Explore an Earth where dragonflies never buzzed, butterflies never fluttered, and humans might have focused exclusively on land speed instead of aerospace. From the philosophical implications of never seeing flight in action to the surprisingly massive ecological

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00:19:48

American BRAIN DRAIN: Beyond The IF!

What The If? ·

2025/02/24

We're sharing our bonus show this week that is usually available only to our Patreon supporters.This week's Beyond the IF continues our sobering discussion about the rapidly deteriorating state of science funding in America. The conversation took us deeper into the real-world impacts we're already seeing - from major universities canceling all graduate admissions to a student who landed a Park Service job only to have it eliminated before she could even start. These aren't hypothetical scenarios

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00:55:26

American BRAIN DRAIN

What The If? ·

2025/02/24

The current US Administration's sudden gutting of science funding is creating an unprecedented crisis. Scientists are waking up to find themselves unemployed, as anonymous officials pull the plug on research programs with no warning or debate. This episode examines the immediate fallout as laboratory freezers shut down, irreplaceable samples are lost, and researchers scramble to preserve years of work. What comes next could be devastating - a potential mass exodus of scientific talent. If funding

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00:54:31

NONSTOP Meteor Madness!

What The If? ·

2025/02/16

Picture a world where meteor showers aren't just annual events - they're a constant barrage of cosmic debris raining down from above. From sonic booms that make sleep impossible to the challenges of titanium umbrella manufacturing, explore how humanity might cope with endless celestial bombardment. Discover why the moon's pockmarked surface could become Earth's new normal, why your local cathedral might be built from meteorite fragments, and how our atmosphere would transform into a perpetual

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00:49:09

The Great GARBAGE Apocalypse!

What The If? ·

2025/02/10

Imagine a world where garbage grows faster than we can handle it. From towering mountains of trash transforming Central Park into a burn pit, to fashionable gas masks becoming the next big trend, to super-sized Pizza Rats dragging entire pies down subway stairs - Matt touches on what happens when our waste production spirals out of control. Discover the fascinating science behind Norway's garbage-to-energy programs, learn why your building's trash chute might be too small for modern waste, and find

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00:59:34

Ultra HEARING For Everyone

What The If? ·

2025/01/05

Your houseplants might be screaming right now, but you'd never know it (unless you're a moth). Scientists discovered that stressed and dehydrated plants emit ultrasonic clicks that moths can hear and use to choose where to lay their eggs - like tiny vegetative Yelp reviews. But what if humans could also tune into this botanical broadcasting network? From coffee shops filled with complaining houseplants to ultrasonic opera singers hitting notes that would make dogs cover their ears, explore a world

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00:46:54

OCTOPUS Empire Rising!

What The If? ·

2024/12/29

What happens after humans? According to fascinating research from Oxford University, octopi might be perfectly positioned to become Earth's next civilization builders. These eight-armed innovators could evolve over millions of years into six-foot-tall underwater architects, developing amazing technologies like saltwater-hardened concrete and creating Venice-style coastal cities. Picture a future where octopi run underwater factories and construct amphibious settlements along what used to be Miami's

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380 results

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