What If: Science, Theory, and Possibilities

By What If

An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the univ... more

· Science
· Technology
· Education
· History

22 ratings

FAQs about What If: Science, Theory, and Possibilities:

How many episodes does What If: Science, Theory, and Possibilities have?

The podcast currently has 421 episodes available.

What If: Science, Theory, and Possibilities episodes:

August 12, 2026 What If You Grew 1cm Every Second
One second, you're your regular size, the next, you're towering over a skyscraper. And some 40 years later? You're the size of a planet. Yeah, you've been growing. ASTRONOMICALLY. Soon, you'll become a human bridge between Earth and the Moon. That is, if you don't collapse into a black hole. Today, we've got you growing 1 cm every second.

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community:

The What If Book

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Produced by Underknown: https://underknown.com

00:00: What If You Grew 1cm Every Second?
00:36: First Hour
02:15: Square-Cube Law and Scaling Challenges
03:22: Becoming a Kaiju
07:12: Towering Over the Eiffel Tower
08:49: Surpassing the Burj Khalifa and Mount Everest
10:58: Entering Space and Reaching the Moon
12:48: Planet and Star Size
16:35: Solar System and Galactic Proportions
19:48: The Size of the Observable Universe

#growth #science #body #human #biology #height #Square-CubeLaw #Kaiju #EiffelTower #BurjKhalifa #MountEverest #space #planet #star #solarsystem #galaxy #universe

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69d3f53c112d1148403764dd

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24min
August 11, 2026 Nothing in This Universe Is the Right Size
Support us on Patreon

From the first spark of life to the extinction of the dinosaurs, explore prehistoric Earth in one marathon watch. 🦕 Experience billions of years of evolution, giant creatures, and moments that shaped life as we know it.

Check out our other channels:
How to Survive
Animalogic
Aperture

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What If elsewhere:
Instagram
Discord
Podcast

What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space, and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

Contact us

00:00:00: What If You Shrunk 1cm Every Second?
00:15:52: What If You Could Shrink to the Size of an Atom?
00:21:43: What If Humans Were Dinosaur-Sized?
00:32:45: What If Tardigrades Were the Size of Humans?
00:37:31: What Was Earth Like in the Age of Giant Insects?
00:45:20: What If The Giant Insects Never Went Extinct?
00:56:04: What If Earth Was As Big As the Sun?
01:01:50: What If Earth Was the Size of Jupiter?
01:07:05: What If All the Planets Doubled in Size?
01:15:11: What If The Largest Objects in the Universe Collided?

#prehistoricEarth #evolution #giantcreatures #hypotheticalworlds #possibilities #science #microorganismo

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69d000c4798904def6c51e2e

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1h 41min
August 10, 2026 What If the Earth Stopped Spinning for 5 Seconds?
Hang on because we’re about to screech to a halt. That’s right, the Earth is going to stop spinning for five seconds. How much damage would this sudden stoppage cause? What would you experience in different parts of the world? And when the Earth starts spinning again, would it still be habitable? How would the day and night cycle be affected? Why would there be strong winds?

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community:

📘 The What If Book
📝 Articles

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🐦 Twitter/X
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SUPPORT WHAT IF
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👕 Merch
❤️ Join this channel for exclusive perks
🙏 Patreon

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MORE FROM UNDERKNOWN
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🧠 Aperture – Philosophy & Psychology
🆘 How to Survive – Survival Science

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📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown

#Earth #Spinning #Planets #Space #Simulation #Winds #Day-NightCycle #WhatIf

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69ceaf43c7754290c1d09388

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5min
August 07, 2026 What If Saturn Replaced Our Moon?
Imagine looking up to see a gas giant 33 times wider than the Moon dominating the sky with its massive rings stretching across the horizon. But this stunning view comes with a heavy price.
Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community.

The What If Book
Articles

JOIN THE COMMUNITY
Discord
WhatsApp
Instagram
Twitter/X
Facebook

SUPPORT WHAT IF
Merch
Join this channel for exclusive perks
Patreon

MORE FROM UNDERKNOWN
Aperture – Philosophy & Psychology
How to Survive – Survival Science

For brand partnerships & collaborations: [email protected]
Produced by Underknown: Underknown

#Saturn #Planets #Space #SpaceSim #WhatIf #GasGiant #Moon

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69cd5dc5743675c2a574674d

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6min
August 06, 2026 What If You Watched a Sunset on Every Planet?
You see, there are 2 trillion galaxies out there in the Universe. Within them, there are trillions of stars. The Universe is a strange place, and the view is about to get spectacular. So buckle up. We are traveling from Mercury to the edge of the known Universe, to witness the most beautiful, and deadly, alien sunsets you've ever seen.

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community.

The What If Book
Articles

JOIN THE COMMUNITY

Discord
WhatsApp
Instagram
Twitter/X
Facebook

SUPPORT WHAT IF

Merch
Join this channel for exclusive perks
Patreon

MORE FROM UNDERKNOWN

Aperture – Philosophy & Psychology
How to Survive – Survival Science

Brand partnerships & collaborations: [email protected]

Produced by Underknown: Underknown

#Planets #Space #Simulation #SpaceSim #Sunset #Universe #Alien

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69cc8acccca61e5292088305

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6min
August 05, 2026 Digging to the Earth's Core: Challenges and Discoveries
There's a problem with the Earth's core. It's right under our feet, yet we've never actually seen it. Today, we explore solutions for drilling to the Earth's center. What would happen if you fell through the planet? Let's find out.

Discover the history of the Kola Superdeep Borehole and the challenges it faced. Understand the massive scale of drilling to the core and the effects of the Coriolis force on drilling at different latitudes. Should we choose the North or South Pole for our journey?

Explore the layers beneath the Earth's crust: the Upper Mantle, Lower Mantle, Outer Core, and Inner Core, each presenting unique obstacles and fascinating science.

Learn about the role of gravity, magnetic fields, and the zero-gravity tug of war at Earth's center. Would you dare the ultimate jump, falling through the Earth?

For our full disclaimer, please visit: https://bit.ly/47lPM5F

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community.

📘 The What If Book: https://bit.ly/WIFBook

📝 Articles: https://whatifshow.com/

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📲 WhatsApp: https://whatsapp.com/channel/0029Va8VC502ER6r1yk1yP2Y
📸 Instagram: http://bit.ly/whatif-instagram
🐦 Twitter/X: http://bit.ly/whatif-twitter
📘 Facebook: http://bit.ly/facebook-whatif

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🙏 Patreon: https://www.patreon.com/whatifshow/membership

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MORE FROM UNDERKNOWN
─────────────────────────────
🧠 Aperture – Philosophy & Psychology: https://bit.ly/aperture-show
🆘 How to Survive – Survival Science: https://bit.ly/how-to-survive-show

─────────────────────────────
📩 Brand partnerships & collaborations: [email protected]

Produced by Underknown: https://underknown.com

00:00: What If You Dug to the Earth's Core?
00:57: The Kola Superdeep Borehole: Lessons from History
01:46: The Immense Scale of the Journey
02:34: The Coriolis Effect: Why You Can’t Drill at the Equator
03:42: Choosing the Right Pole: North vs. South
08:50: The Timeline: 25,000 Years of Drilling?
11:00: The Upper Mantle
12:23: The Lower Mantle
13:36: The Outer Core
14:46: Gravity’s Help: Sinking the Pipe
15:24: Magnetic Fields and the Geo-Dynamo
16:12: The Inner Core: Solid Metal at Solar Temperatures
17:15: Reaching the Center: The Zero-Gravity Tug of War
18:34: The Return Trip: Drilling Back Up
19:17: The Ultimate Jump: Falling Through the Earth

#Earth'score #drilling #KolaSuperdeepBorehole #mantle #Corioliseffect #magneticfields #geo-dynamo #gravity #zero-gravity #fallingthroughEarth

See show notes:

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25min
August 04, 2026 What If Humanity Became Fully Optimized?
What would happen if humanity reached its absolute peak? No disease, no inefficiency, no wasted potential—just a fully optimized species operating at maximum intelligence, strength, and coordination. Sounds perfect… right?

If you want to learn more about Rezolve AI (NASDAQ: RZLV) go to their investor website: Rezolve AI Investor Website.

This content was conducted on behalf of Rezolve AI PLC (NASDAQ: RZLV) and was funded by Outside The Box Capital Inc. After Underknown Inc. was engaged by Outside The Box Capital Inc. to advertise for Rezolve AI PLC (NASDAQ: RZLV).

For our full disclaimer, please visit: Full Disclaimer.

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community 👇

The What If Book
Articles

─────────────────────────────
JOIN THE COMMUNITY
─────────────────────────────

Discord
WhatsApp
Instagram
Twitter/X
Facebook

─────────────────────────────
SUPPORT WHAT IF
─────────────────────────────

Merch
Join this channel for exclusive perks
Patreon

─────────────────────────────
MORE FROM UNDERKNOWN
─────────────────────────────

Aperture – Philosophy & Psychology
How to Survive – Survival Science

─────────────────────────────
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown: Underknown

#Humanity #Civilization #Science #Optimization #RezolveAI

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69c9e7c47f4b0c3ff1daeb5c

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...more
6min
August 03, 2026 What If Prehistoric Earth Never Changed?
What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

Support us on Patreon

Check out our other channels:
How to Survive
Animalogic
Aperture

T-shirts and merch

What If elsewhere:
Instagram
Discord
Podcast

Contact us at Underknown

00:05: Earth's Evolution in 10 Minutes
00:41: PopSci Host Read
11:55: What Was Earth Like Before the Dinosaurs?
21:01: What Was Earth Like in the Age of Giant Insects?
28:34: What If The Megalodon Never Stopped Evolving?
51:07: What If The Titanoboa Never Stopped Evolving?
1:06:08: What Would Dying by Prehistoric Animals Be Like?
1:30:12: What Happened Immediately After the Dinosaurs Went Extinct?
1:37:32: Evolution of Dinosaurs in 10 Minutes

#WhatIf #prehistoric #Earth #evolution #dinosaurs #giantinsects #Megalodon #Titanoboa #hypotheticalworlds

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69c6c63b3885c038f7703908

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1h 54min
July 31, 2026 What If You Ate Dry Ice?
What would happen if you actually ate dry ice? It looks like regular ice, but it's anything but harmless.

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community below:

The What If Book
Articles

JOIN THE COMMUNITY

💬 Discord
📲 WhatsApp
📸 Instagram
🐦 Twitter/X
📘 Facebook

SUPPORT WHAT IF

👕 Merch
❤️ Join this channel for exclusive perks: YouTube Channel
🙏 Patreon

MORE FROM UNDERKNOWN

🧠 Aperture – Philosophy & Psychology
🆘 How to Survive – Survival Science

📩 Brand partnerships & collaborations: [email protected]

Produced by Underknown: Underknown

#DryIce #Freezing #Science #Chemistry #WhatIf #community #explorescenarios

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69c5750061dfbf80ae5fd328

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5min
July 30, 2026 What If Jupiter Collided With Earth?
The biggest planet in the Solar System has gone rogue. Now, it’s heading straight toward Earth with only 30 days until this gas giant wipes us out. Discover the speeds at which Jupiter might travel and the havoc it could cause along the way. Could we survive being consumed by this planetary giant? What would happen to the Asteroid belt?

Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community.

The What If Book
Articles

─────────────────────────────
JOIN THE COMMUNITY
─────────────────────────────
Discord
WhatsApp
Instagram
Twitter/X
Facebook

─────────────────────────────
SUPPORT WHAT IF
─────────────────────────────
Merch
Join this channel for exclusive perks
Patreon

─────────────────────────────
MORE FROM UNDERKNOWN
─────────────────────────────
Aperture – Philosophy & Psychology
How to Survive – Survival Science

─────────────────────────────
Brand partnerships & collaborations
Produced by Underknown

#Space #Jupiter #Earth #Planets #SpaceSimulation #Science #NASA

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/69c2d208e7a54905f683099d

Learn more about your ad choices. Visit podcastchoices.com/adchoices
...more
5min

FAQs about What If: Science, Theory, and Possibilities:

How many episodes does What If: Science, Theory, and Possibilities have?

The podcast currently has 421 episodes available.

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What If: Science, Theory, and Possibilities

FAQs about What If: Science, Theory, and Possibilities:

How many episodes does What If: Science, Theory, and Possibilities have?

What If: Science, Theory, and Possibilities episodes:

FAQs about What If: Science, Theory, and Possibilities:

How many episodes does What If: Science, Theory, and Possibilities have?

More shows like What If: Science, Theory, and Possibilities

The Joe Rogan Experience

6 Minute English