PODCAST · science
What The If?
by Philip Shane
Welcome to the show where we learn science by exploring the universe by pushing it... to the limit. A dangerous mix of Science & Fiction, hosted by Philip Shane & Matt Stanley
Episodes
-
The Sloth Life Is A GOOD Life!
Listener Dan Floyd asks: what the if exercise were bad for you? Imagine a checkup where your doctor frowns at your step count. In this episode we explore that fanciful scenario, and along the way you'll learn some really cool science about things like how sloths evolved to survive by hiding…
more -
Who The If is MATT!
Who the if is Matt Stanley? He went to college to build lasers and wound up a historian of science. In this episode you'll learn some really cool science about things like Maxwell's equations, the strange early days of quantum physics, and the notebook where Einstein scribbled his way to general...
-
Bugs The Size Of US!
What the if bugs were the size of us? Imagine heading out with your morning coffee and holding the door for an ant who stands as tall as you do. In this episode we explore that fanciful scenario, and along the way you'll learn some really cool science about things like the giant insects that…
more -
Your Lab Partner Is A ROBOT!
What the if all lab work were done by robots? Imagine strolling into the lab with your morning coffee to find that a tireless mechanical partner has already run your experiments overnight. In this episode we explore that fanciful scenario, and along the way you'll learn some really cool science...
-
The MUSES Are Real - with Dr. Moiya McTier!
What the if the muses were real? Astrophysicist and folklorist Moiya McTier, author of "Mothers of Invention," takes us into a world where nine Greek goddesses are still on the job, and one of them might be on your doorstep this morning. Brain scans of jazz musicians mid-improvisation, the…
more -
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,...
-
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…. —— Our special guest this week is Dr. Moiya McTier, “Folklorist to the stars & Astrophysicist…
more -
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...
-
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...
-
ANTIMATTER On Demand!
ANTIMATTER On Demand! by Philip Shane, Matt Stanley, Gabrielle Paniccia
-
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…
more -
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...
-
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...
-
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...
-
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...
-
Build A Brand New ALPHABET - with Linguist DANNY BATE!
What the if you had to invent the alphabet from scratch? The Pharaoh hands you a stone tablet, a chisel, and an impossible assignment: condense every sound a human mouth can make into a handful of squiggles. Where do you even start? How do you decide what makes the cut? And once you do, how do…
more -
Moon Babies Meet EARTH!
Picture this: you're a moon baby, born and raised underground on Luna, and you've just landed on Earth for the very first time. Meet the loonies, a civilization of moon-born humans who cook up rocket fuel from lunar ice and travel between worlds in spacecraft that might just include a pickleball...
-
Microbe Grudge Match!
What the if microbes held a grudge? We're thrilled to welcome Ethan Rappaport, theoretical ecologist at the University of Maryland, to take us inside the tiny turf wars happening in your gut. We imagine bacteria sharing grudges like social media reposts, passing weaponized DNA to their neighbors...
-
Space JUNK!
In honor of the 25th anniversary of the MIR SPACE STATION's spectacular farewell reentry, we're featuring an encore of our August 11, 2023 episode about what happens when SPACE JUNK takes over the sky! --- Hey there, fellow Iffers! It's Philip here, and do I have a treat for you. Dive into our...
-
Telepathy!
What the if you could read minds — but only when someone's nearby? Congratulations, your subway commute just became a psychic nightmare. Babies would blast unfiltered emotional chaos straight into your skull, your dog would telepathically loop images of a full food bowl at you around the clock…
more -
Reality Is Making Stuff UP!
Right now, billions of particles are popping in and out of existence in your pocket. That's not a metaphor — that's quantum mechanics. Inspired by a YouTube video from Anton Petrov about virtual particles turning into real matter, this week's thought experiment asks: what the if virtual particles...
-
Ants Adopt A CATERPILLAR!
What the if you got zapped by a shrink ray while walking past the physics department and your only hope of survival was convincing a colony of ants to take you in? Lycaenid butterfly caterpillars have been pulling this con for millions of years, hacking ant colonies with fake chemical IDs and...
-
The Buddy System Run AMOK!
What the if humans moved in schools — not classrooms, but like fish? Inspired by Carl Zimmer's New York Times article on how misinformation spreads among schooling fish, this episode explores a world where you can't go anywhere without your tightly synchronized pod. From navigating modern city…
more -
Black Holes
MIT physicist David Kaiser is one of those rare scientists who can make mind-bending physics feel like a great conversation over coffee — funny, generous, and genuinely thrilled by what we still don't know. And what he's working on is wild. What the if the universe is packed with invisible black...
-
The Day Gravity QUIT!
A conspiracy theory went viral claiming that on August 12th, 2026, Earth will lose gravity for seven seconds. The internet did what the internet does, and millions of people started talking about it. So we decided to take the question seriously — what the if gravity actually clocked out for seven...
-
GROUND HOG Day PHYSICS!
What the if a groundhog could actually predict the weather? Turns out Punxsutawney Phil would need way more than a shadow — we're talking a full groundhog space program, weather satellites, underground supercomputers, and a solar shade the size of western Pennsylvania. Welcome to the groundhog…
more -
HAGFISH - Champion Of The SLIMER BOWL!
We first shared this one on Super Bowl Sunday 2019 — what better weekend to bring back nature's ultimate underdog? Enjoy this encore presentation! ---- The HAGFISH, little known, little respected... greatly feared... by sharks! Is the hagfish the Spiderman of the Sea? This little slimy fish can...
-
CITIZEN Science -- with Kirby Runyon!
Planetary geologist Kirby Runyon from the Planetary Science Institute needs volunteers to map ancient impact melt flows on the moon from their home computers. What the if this went mainstream? Imagine science bars replacing sports bars, Twitch streams of competitive boulder counting, and reality…
more -
Walking on IO with Robin Andrews! (Encore)
We're taking a break this week while Philip recovers from the 'double-whammy' of flu and COVID boosters. (Science works, but sometimes it makes you nap!) However, we couldn't let January 7th pass unnoticed. On this day in 1610, Galileo first spotted Jupiter's moon, Io. To celebrate, we’ve…
more -
BIOLOGICAL New Year's Resolutions!
What the if your New Year's resolution became a biological compulsion you literally could not ignore? Imagine waking up on January 1st with the same unstoppable urge that drives salmon to swim upstream, except instead of spawning, you absolutely must get to the gym three times a week. In this...
-
Time REVERSAL with Ian Durham!
What the if time suddenly started running backwards? Your breakfast un-eats itself, LEGO sets come pre-assembled, and you get younger every day. The dead have unfunerals, your room cleans itself, and teenagers slowly regress through middle school—backwards. Professor Ian Durham of Saint Anselm...
-
Santa's MEGA Fauna!
Listener Anne of Queens got us thinking about flying reindeer for the holidays. Imagine herds of 1,500-pound mammals migrating through your town like Canada geese. Suddenly those goose droppings don't seem so bad. Discover why the classic Santa sleigh makes no aerodynamic sense (eight reindeer in...
-
Green SUN Apocalypse!
What the if the Sun suddenly turned green? Your pizza now looks like charcoal because all red things go black. Stop signs become invisible. The sky shifts from cheerful blue to permanent dusk. And plants? They absolutely despise green light—they reflect it because green photons are the M&Ms they...
-
Dr. Kiki Turns Us Into BIRDS!
Happy Thanksgiving! We're off this week for the holiday, so we're presenting an encore presentation of an episode that was originally broadcast on September 5, 2018, and remains one of our all-time audience favorites. What the if humans evolved into shrikes - those adorable songbirds that impale...
-
Two BABIES, Two SPECIES!
Scientists just discovered ant queens that give birth to two completely different species - not twins, but actual separate species hatching from the same mother. But what the if every animal on Earth reproduced this way? Suddenly every pregnancy becomes a species reveal party, dairy farms need to...
-
CHINA vs NASA
This week we're trading hypothetical fungi and exploding planets for something scarier: actual government budgets. But don't worry - watching America accidentally hand the space race to China is just as entertaining as any sci-fi disaster scenario, and way more preventable. Think "For All…
more -
Mosquitoes Fall for FUNGI!
What the if mosquitoes were helpless against the sweet smell of their own doom? Scientists genetically engineered Metarhizium fungus to smell so irresistibly delicious that mosquitoes can't help but fly straight into deadly traps with a 90-100% success rate. Discover why these bloodsuckers are...
-
FRANKENSTEIN
What the if Frankenstein was real and doctors actually tried stitching corpses together to create new people? Forget dramatic lightning strikes and brooding in Gothic towers - the real adventure is managing the world's most complicated pharmacy order when seventeen different immune systems meet…
more -
The BURPING Lake!
What the if all bodies of water on Earth were fizzy like soda? In the real world, Seneca Lake in New York produces mysterious underwater booms called "Seneca guns" that scientists think come from occasional gas pockets, but nobody knows for sure. But in our imaginary world where every lake...
-
Animals Train YOU!
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...
-
AI Viruses
Scientists just used artificial intelligence to design the world's first AI-generated viruses capable of hunting down and killing drug-resistant strains of E. coli. These bacteriophages look like tiny alien pineapples with syringes that stab bacterial cells, and they're just the beginning of...
-
MEMORY Maxed Out - with Nikolay Kukushkin!
What the if your brain literally ran out of storage space like a laptop refusing to save one more file? Neuroscientist Nikolay Kukushkin explains how memory isn't a filing cabinet but more like water carving rivers down a mountain - and when you carve too many paths, everything becomes a muddy...
-
Gravity Waves Go WIGGLE
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…
more -
Science ROCKS On MARS!
What the if you found a rock on Mars that might - emphasis on might - show signs of ancient life? NASA's Perseverance rover discovered intriguing leopard spots in a 3.5-billion-year-old rock that contain vivianite, a mineral that could potentially indicate biological activity, though scientists...
-
VITALERIUM with Nicholas Casbarro!
Our guest this week is science fiction author Nicholas Casbarro, who brings us a universe-changing concept from his novel Vitalerium - a radioactive space rock that enables faster-than-light travel. What the if humans discovered this exotic material so powerful that a fist-sized chunk can propel…
more -
Riding GRAVITY FORCE ONE with KIRBY RUNYON
D'oh! We had technical difficulties this week and so we are presenting this encore presentation of one of our most popular episodes. It also happens to be Kirby's birthday, and we're eager to honor his awesomeness by sharing with you this fabulous episode we did with him on December 16, 2021.…
more -
SLOW Light Speed!
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…
more -
Alien PETS!
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...
-
Nuclear REACTORS on the Moon!
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...
-
Don't SWEAT It!
Anne from Queens, a longtime listener and proud sticker-carrying Patreon supporter, inspired this week's episode by asking: what the if humans couldn't sweat? Discover a world where everyone walks around panting like dogs with their tongues hanging out, cities install massive water pipeline...
We're indexing this podcast's transcripts for the first time — this can take a minute or two. We'll show results as soon as they're ready.
No matches for "" in this podcast's transcripts.
No topics indexed yet for this podcast.
Loading reviews...
Loading similar podcasts...
Frequently Asked Questions
How many episodes does What The If? have?
What The If? currently has 459 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is What The If? about?
Welcome to the show where we learn science by exploring the universe by pushing it... to the limit. A dangerous mix of Science & Fiction, hosted by Philip Shane & Matt Stanley
How often does What The If? release new episodes?
What The If? publishes regularly with 459 episodes available. Check the episode list for the typical release schedule.
Where can I listen to What The If??
You can listen to What The If? on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts What The If??
What The If? is created and hosted by Philip Shane.
URL copied to clipboard!