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

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

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

The podcast currently has 190 episodes available.

What If: Science, Theory, and Possibilities episodes:

October 10, 2025 Living in the Hottest Place on Earth
Do you want to feel like you're at the internal temperature of a steak? Or maybe fry an egg with no stove? Welcome to Death Valley, and the "death" part is accurate. This national park stretching through California and Nevada is so hot you can barely breathe.

For the transcript and sources, visit What If Show.

Questions or concerns? Contact us.

Get our 100 best episodes in one mind-blowing book: The What If 100 Book.

Join this channel to get access to perks: YouTube Membership.

Check out our other channels:
How to Survive
Aperture
Crazy Creatures
Your Body On
Origins of Food
Versus
WTF Did I Just Watch

Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity

T-shirts and merch: What If Store
Suggest an episode: Suggest What If
Newsletter: What If Newsletter

What If elsewhere:
Instagram
Discord
Twitter
Facebook
What If in Spanish
What If in Mandarin
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.

Produced with love by Underknown in Toronto: Underknown.

Contact us at Underknown Contact.

00:00:00: Hottest place on Earth
00:01:10: Where's Death Valley?
00:01:38: Life in Death Valley
00:03:33: Hyperthermia

#DeathValley #hottestplaceonEarth #California #Nevada #extremeheat #survival #temperature #nationalpark #hyperthermia

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d8640e64c4b83e7e517ed

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9min
October 09, 2025Megalodon Shark vs. Leviathan Whale: Who Would Win?
It's the largest shark that's ever lived on Earth against a monstrous whale who terrorizes its prey. Would the megalodon shark or the Leviathan whale win this epic underwater matchup? Which underwater predator is bigger and who has the strength to take out the enemy?

Subscribe to Versus: https://www.youtube.com/channel/UCDjdqErCKFtO6Y2pd2fBB7g

Transcript and sources: https://whatifshow.com/what-if-the-megalodon-shark-fought-the-leviathan-whale/

Questions or concerns? Contact us at https://underknown.com/contact/

Get our 100 best episodes in one mind-blowing book: http://bit.ly/ytc-the-what-if-100-book

Join this channel to get access to perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join

Check out our other shows:
How to Survive: https://bit.ly/how-to-survive-show
Your Body on: https://bit.ly/your-body-on-show
Crazy Creatures: https://bit.ly/crazy-creatures-show
Watch more what-if scenarios:
Planet Earth: http://bit.ly/YT-what-if-Earth
The Cosmos: http://bit.ly/YT-what-if-Cosmos
Technology: http://bit.ly/YT-what-if-Technology
Your Body: http://bit.ly/YT-what-if-Body
Humanity: http://bit.ly/YT-what-if-Humanity
T-shirts and merch: http://bit.ly/whatifstore
Suggest an episode: http://bit.ly/suggest-whatif
Newsletter: http://bit.ly/whatif-newsletter

What If elsewhere:
Instagram: http://bit.ly/whatif-instagram
Discord: https://discord.gg/WzkQPB3nea
Twitter: http://bit.ly/whatif-twitter
Facebook: http://bit.ly/facebook-whatif
What If in Spanish: http://bit.ly/YT-Spanish-what-if
What If in Mandarin: http://bit.ly/YT-Chinese-what-if
Podcast: http://bit.ly/yt-what-if-show-podcast

Produced with love by Underknown in Toronto: https://underknown.com
Contact us at https://underknown.com/contact/

00:00: Megalodon Vs Leviathan
00:53: Ancient ancestors
01:40: Subscribe to VS!
02:06: Fighter stats
04:40: Fight
06:41: Pick your winner

#Megalodon #Leviathan #Epicbattle #Underwaterpredators #Shark #Whale

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d8643e64c4b83e7e517f7

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10min
October 08, 2025What If the Sun Collided With a Black Hole?
You've heard the Soundgarden song, but how about a real Black Hole Sun collision? Most black holes are the remnants of massive stars. Would our Sun survive the collision, or could a black hole make some serious cosmic trouble for the ruler of our Solar System?

Transcript and sources: What If

Questions or concerns? Contact us at Underknown Contact

Get our 100 best episodes in one mind-blowing book: The What If 100 Book

Join this channel to get access to perks: YouTube Channel

Check out our other shows:
How to Survive
Your Body on
Crazy Creatures
Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity
T-shirts and merch: What If Store

Suggest an episode: Suggest What If

Newsletter: What If Newsletter

What If elsewhere:
Instagram
Discord
Twitter
Facebook
What If in Spanish
What If in Mandarin

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.

Produced with love by Underknown in Toronto: Underknown

Contact us at Underknown Contact

00:00: Black hole Sun.
01:18: Singularity
02:09: Oort Cloud
03:45: Solar matter

#Sun #blackhole #collision #cosmic #SolarSystem #Soundgarden #Singularity #OortCloud

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d8644e64c4b83e7e517fb

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10min
October 07, 2025What Happens If You Don't Sleep for a Week?
Most of us don't get the recommended eight hours of sleep a night. But what if you went a whole week without sleeping? What would happen to your body? And how quickly would you start to hallucinate without sleep?

For transcript and sources, visit here.

Questions or concerns? Contact us at Underknown.

Get our 100 best episodes in one mind-blowing book: The What If 100 Book.

Join this channel to get access to perks: YouTube Membership.

Check out our other shows:
How to Survive
Your Body on
Crazy Creatures
Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity
T-shirts and merch: What If Store.
Suggest an episode: Episode Suggestions.
Newsletter: What If Newsletter.

What If elsewhere:
Instagram
Discord
Twitter
Facebook
What If in Spanish
What If in Mandarin
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.

Produced with love by Underknown in Toronto: Visit Underknown.

00:00: No sleep for a week
01:00: How much should you sleep?
03:02: Sleeplessness dangers
04:54: Hallucination

#WhatIf #Insomnia #NoSleep #SleepDeprivation #Hallucination #Sleeplessness

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d8646e64c4b83e7e51803

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9min
October 06, 2025What If Russia Crashed the International Space Station
It's not outside the realm of possibility. Russia has already tested an anti-satellite missile on one of its own satellites, threatening the safety of International Space Station crew members. If Russia crashed the ISS, what would it mean for international relations and space exploration?

For the full transcript and sources, visit this link.

Questions or concerns? Contact us at Underknown.

Get our 100 best episodes in one mind-blowing book: Order here.

Join this channel to get access to perks: Join us.

Check out our other shows:
How to Survive
Your Body on
Crazy Creatures
Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity
T-shirts and merch: Shop now

Suggest an episode: Suggest here

Newsletter: Subscribe

Follow us on social media:
Instagram
Discord
Twitter
Facebook
What If in other languages:
Spanish
Mandarin

Podcast: Listen here

Produced with love by Underknown in Toronto: Visit us

Contact us at Underknown

00:00: Crashing the ISS
00:52: International Space Station
03:29: Anti-satellite test
04:35: Station building materials

#Russia #InternationalSpaceStation #anti-satellitemissile #spaceexploration #internationalrelations #WhatIf

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d8647e64c4b83e7e51807

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10min
October 03, 2025 What If the Earth Was a Polyhedron?
For the flat Earth theorists out there, what if there was a happy compromise between a flat and round planet? How about a polyhedron? From triangles to cubes, polyhedrons come in all shapes and sizes. Find out why an icosahedron could be just the shape our planet needs.
Cut down on editing time and write more confidently with Grammarly Premium. Get 20% off Grammarly Premium by signing up at Grammarly Premium.
Transcript and sources are available here.
Questions or concerns? Contact us at Underknown.
Get our 100 best episodes in one mind-blowing book: here.
Join this channel to get access to perks: here.
Check out our other shows: How to Survive, Your Body on, Crazy Creatures.
Watch more what-if scenarios: Planet Earth, The Cosmos, Technology, Your Body, Humanity.
T-shirts and merch: here. Suggest an episode: here. Newsletter: here.
What If elsewhere: Instagram, Discord, Twitter, Facebook, What If in Spanish, What If in Mandarin, Podcast.
Produced with love by Underknown in Toronto: here. Contact us at Underknown.

00:00: Polyhedron Earth
01:39: Thanks, Grammarly!
02:38: Map distortion
03:43: Planet formation
04:45: Polyhedron environment

#FlatEarthTheory #Polyhedron #Icosahedron #PlanetaryShape #WhatIf #Grammarly #HypotheticalWorlds #Underknown

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d8648e64c4b83e7e5180b

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...more
10min
October 02, 2025Surviving the End of the Solar System
Billions of years in the future, our Sun will become a red giant and then die out. But when the Sun dies, where do we go? Elon Musk's Mars mission is starting to look appealing. Could Mars be the next habitable planet for humans in space once our Solar System is no more?

Book your visit at Museum of the Future.

Transcript and sources: whatifshow.com

Questions or concerns? Contact us at underknown.com

Get our 100 best episodes in one mind-blowing book: The What If 100 Book

Join this channel to get access to perks: YouTube Channel Membership

Check out our other shows:
How to Survive
Your Body on
Crazy Creatures
Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity
T-shirts and merch: What If Store

Suggest an episode: Suggest What If

Newsletter: What If Newsletter

What If elsewhere:
Instagram
Discord
Twitter
Facebook

What If in Spanish: Spanish What If

What If in Mandarin: Mandarin What If

Podcast: What If 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.

Produced with love by Underknown in Toronto: Underknown

Contact us at underknown.com/contact

00:00: Sun Death
00:48: Solar history
01:52: Thanks, Museum of the Future!
02:57: Boiling oceans
03:34: Life on Mars?

#SolarSystem #Sundeath #Mars #ElonMusk #habitableplanet #space #future #humansurvival #MuseumoftheFuture #WhatIf

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d864ae64c4b83e7e51811

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...more
11min
October 01, 2025 What If You Spent a Month on Snake Island?
This island off the coast of Brazil is illegal to visit. Why? This is Snake Island, populated by 4,000 golden lancehead viper snakes, and they're not so friendly to humans. What would happen if you tried to coexist with these reptiles?

Transcript and sources: here

Questions or concerns? Contact us at Underknown

Get our 100 best episodes in one mind-blowing book: here

Join this channel to get access to perks: here

Check out our other shows: How to Survive, Your Body on, Crazy Creatures

Watch more what-if scenarios: Planet Earth, The Cosmos, Technology, Your Body, Humanity

T-shirts and merch: here

Suggest an episode: here

Newsletter: here

What If elsewhere: Instagram, Discord, Twitter, Facebook, What If in Spanish, What If in Mandarin, 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.

Produced with love by Underknown in Toronto: here

Contact us at Underknown

00:00: Snake island
00:48: Tropical death trap
01:30: Snake danger
02:24: Venom evolution

#SnakeIsland #goldenlanceheadviper #Brazil #reptiles #venomoussnakes #hypotheticalscenarios #survival

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d864be64c4b83e7e51815

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9min
September 30, 2025 Jumping on Every Planet in the Solar System
We’re taking a journey through space, jumping on each planet in our Solar System. On which planets could you get the most elevation? Which gas giant’s surface gravity would leave you with an unimpressive hop? What would your body feel like jumping on all these planets?

Transcript and sources
Book your visit

Questions or concerns? Contact us

Get our 100 best episodes in one mind-blowing book: here

Join this channel to get access to perks: here

Check out our other shows:
How to Survive
Your Body on
Crazy Creatures

Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity

T-shirts and merch: here
Suggest an episode: here
Newsletter: here

What If elsewhere:
Instagram
Discord
Twitter
Facebook
What If in Spanish
What If in Mandarin
Podcast

Produced with love by Underknown in Toronto: here
Contact us at here

00:00: Jumping on each planet
01:40: Thanks, Museum of the Future!
02:38: Human jumps
03:16: Moon
03:56: Mercury
04:21: Venus
04:50: Mars
05:17: Jupiter
06:04: Saturn
06:23: Uranus
06:46: Neptune

#Space #Cosmos #PlanetJump #GasGiants #IceGiants #SolarSystem #Gravity #Elevation #Humanbody

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d864de64c4b83e7e5181b

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...more
11min
September 29, 2025 Can We Turn Deserts Into Farmland?
Deserts won't remain barren wastelands. Discover how transforming the world's deserts into lush farmland could impact our planet. What are the costs of terraforming, and how might turning deserts into farmland affect the Amazon rainforest?

Transcript and sources

For questions or concerns, contact us at Underknown.

Get our 100 best episodes in one mind-blowing book: Buy here

Join this channel to get access to perks: YouTube Membership

Check out our other shows:
How to Survive
Your Body on
Crazy Creatures

Watch more what-if scenarios:
Planet Earth
The Cosmos
Technology
Your Body
Humanity

T-shirts and merch: Shop here

Suggest an episode: Submit ideas

Newsletter: Subscribe

What If elsewhere:
Instagram
Discord
Twitter
Facebook
What If in Spanish
What If in Mandarin

What If is a mini-documentary series exploring hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space, and chance, as we make complex subjects fun and entertaining.

Produced with love by Underknown in Toronto: Underknown
Contact us at Underknown

00:00: Desert farmlands?
00:52: Desert facts
01:23: Evapotranspiration
01:59: Nanoclay
03:30: Materials and cost

#DesertFarmland #Terraforming #AmazonRainforest #FoodProduction #DesertEcosystems #Nanoclay ##WhatIf ##Farmlands

See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/681d864fe64c4b83e7e51821

Learn more about your ad choices. Visit podcastchoices.com/adchoices
...more
9min

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

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

The podcast currently has 190 episodes available.