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

NouveauWhat If All Glaciers Melted Instantly? Sea Level Rise and Global Consequences13 novembre 2026 · 24 min
Épisodes
493
Parution
quotidienne
Dernier épisode
13 Nov 2026

À propos du podcast

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 universe, others right here on Earth. Each scenario examines a scientific theory, research or fact through a hypothetical question.

Épisodes 493

  1. What If All Glaciers Melted Instantly? Sea Level Rise and Global Consequences

    24 min

    What would happen if every glacier on Earth melted instantly? Explore a hypothetical world of rising seas, flooded cities, disrupted rivers, and cascading climate disasters.Compare three scenarios: the sudden …

    Notes de l’épisode

    What would happen if every glacier on Earth melted instantly? Explore a hypothetical world of rising seas, flooded cities, disrupted rivers, and cascading climate disasters.

    Compare three scenarios: the sudden loss of alpine glaciers, the melting of Greenland and Antarctica's vast ice sheets, and the disappearance of floating sea ice. Discover how ice loss could reshape coastlines, alter gravity's influence on ocean levels, and accelerate global warming through the albedo effect.

    From a potential 65-meter (215-foot) sea level rise to the physics of hypothetical tsunamis, this episode examines which places might survive, what civilization could face, and whether glaciers could ever return.


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    Explore More What If Scenarios
    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    Join the Community
    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]
    Produced by Underknown: https://underknown.com


    00:00:00: What If All Glaciers Melted Instantly?
    00:00:42: Mountain Glaciers vs. Ice Sheets
    00:01:25: Scenario 1: All Alpine Glaciers Melt Instantly
    00:02:03: Drying Up the World's Major Rivers
    00:03:47: The Impact on Coastal Sea Levels
    00:05:25: Scenario 2: Greenland and Antarctica's Ice Sheets
    00:07:42: 99% of Freshwater Ice and Gravity Shifts
    00:08:24: The 65-Meter (215-Foot) Sea Level Rise
    00:09:16: Deep-Ocean Tsunami Physics
    00:10:14: North Pole Tsunami: Impacts and Inundation
    00:11:21: South Pole Tsunami: The Antarctic Beast
    00:12:12: Waves Collide: Wiping Out Cities and Countries
    00:13:14: The New Inland Map and Secondary Disasters
    00:15:25: Scenario 3: Melting Sea Ice and the Cryosphere
    00:16:36: Why Melting Sea Ice Doesn't Raise Water Levels: Displacement
    00:17:08: The Albedo Effect and Accelerated Global Warming
    00:18:31: Climate Feedback Loops and Civilization Collapse
    00:19:40: Can Glaciers Ever Return? Hysteresis Explained
    00:20:42: The New Waterworld Era

    #glacier #icecap #globalwarming #climatechange #climate #Earth #ocean #water #sea #sealevel #sealevelrise #glaciermelting #alpineglaciers #icesheets #Greenland #Antarctica #seaice #cryosphere #coastalflooding #tsunamiphysics #freshwater #albedoeffect #climatefeedbackloops #hysteresis #65-metersealevelrise



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

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  2. The Great Dying: Earth's Closest Call to Extinction

    5 min

    What if Earth's continents had never split apart? Imagine a modern-day Pangea: one massive supercontinent where the air is hot, thick, and heavy with the scent of wet mud and pine. Your lawn is a dense fern …

    Notes de l’épisode

    What if Earth's continents had never split apart? Imagine a modern-day Pangea: one massive supercontinent where the air is hot, thick, and heavy with the scent of wet mud and pine. Your lawn is a dense fern jungle, and a massive, toothy relative of the crocodile waits where your driveway should be.

    Explore what this alternate Earth might look like, which creatures could rule it, and whether humans would ever have evolved.

    Explore more What If scenarios and connect with the community.


    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    Join the community
    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown: https://underknown.com


    #Pangea #Earth #science #WhatIf #history #Shorts #Europe #Africa #Asia #NorthAmerica #America #SouthAmerica #Antarctica #Australia #supercontinent #continentaldrift #ancientpredators #humanevolution #alternateEarth



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6abea02389f23ac2157ccc34

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  3. Falling Through the Universe: Jupiter, Cosmic Voids and Black Holes

    1 h 57 min

    What would happen if you dug to Earth’s core or fell into Jupiter, Neptune, or the biggest void in the universe? Explore extreme cosmic possibilities, from the Solar System’s greatest storm to the search for …

    Notes de l’épisode

    What would happen if you dug to Earth’s core or fell into Jupiter, Neptune, or the biggest void in the universe? Explore extreme cosmic possibilities, from the Solar System’s greatest storm to the search for Planet 9. Could our entire universe exist inside a black hole?


    Discover more science with Popular Science, a free streaming channel featuring What If alongside explorations of engineering, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/


    Support us on Patreon: https://www.patreon.com/whatifshow/membership


    Check out our other channels:
    How to Survive: https://bit.ly/how-to-survive-show
    Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w
    Aperture: https://bit.ly/aperture-show


    T-shirts and merch: http://bit.ly/whatifstore


    Follow What If:
    Instagram: http://bit.ly/whatif-instagram
    Discord: https://discord.gg/Bj5UnspbwE
    Podcast: http://bit.ly/yt-what-if-show-podcast


    What If is a mini-documentary web series exploring hypothetical worlds and possibilities. Join an imaginary adventure through time, space, and chance, with complex science explained in a fun, accessible way.


    Contact us: https://underknown.com/contact/


    #whatif #science #earth #universe #cosmos


    00:00:05: You Are Alive to Watch the Solar System’s Greatest Storm Die
    00:16:32: What If You Dug to Earth’s Core?
    00:34:38: What If You Fell Into Jupiter?
    00:38:47: What If You Fell Into Neptune?
    00:51:41: What If We Found Planet 9?
    01:12:48: What If You Fell Into the Biggest Void in the Universe?
    01:28:39: What If Our Universe Was Inside a Black Hole?

    #whatif #science #earth #universe #cosmos #Earth’score #Jupiter #Neptune #Planet9 #SolarSystem #cosmicvoids #blackholes #planetarystorms #astronomy #spaceexploration #hypotheticalscience



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6abbfd1289f23ac215492ec9

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  4. What If Pangea Still Existed Today?

    27 min

    What would Earth look like if Pangea had never split apart? Explore an alternate world where today's continents remain one massive supercontinent, with mega-monsoons, a vast desert interior and a radically …

    Notes de l’épisode

    What would Earth look like if Pangea had never split apart? Explore an alternate world where today's continents remain one massive supercontinent, with mega-monsoons, a vast desert interior and a radically different path for evolution.

    Meet Postosuchus, an ancient relative of crocodiles, and discover what Lystrosaurus fossils reveal about our planet's connected past. From continental drift and the Great Dying to cynodonts, the ancestors of mammals, explore the forces that shaped life on Earth—and whether humans could have evolved without them.


    Sponsor: Bombas
    Thank you to Bombas for sponsoring this episode! Visit Bombas and use code WHATIF at checkout for 20% off your first purchase.


    Explore more What If scenarios
    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    Join the community
    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown: https://underknown.com


    00:00:00: What If Pangea Still Existed Today?
    00:01:19: Apex Predators: Meet Postosuchus
    00:02:08: Atmosphere and Mega-Monsoons
    00:05:51: The Unforgiving Interior: A 50-Million-Square-Kilometer Desert
    00:07:35: Could Humans Have Evolved on Pangea?
    00:08:44: What Was Pangea and Who Lived There?
    00:10:59: The Fossil Evidence: Lystrosaurus Across Continents
    00:12:03: How Continental Drift Drove Evolution and Human Origins
    00:15:01: Alternate Evolution: 200 Million Years Later
    00:17:30: The Great Dying: Earth's Biggest Extinction Event
    00:19:53: Cynodonts: The Scrappy Ancestors of All Mammals
    00:22:00: Parallel Evolution: What Would Humans Look Like?

    #Pangaea #Pangea #Earth #science #WhatIf #history #Europe #Africa #Asia #NorthAmerica #America #SouthAmerica #Antarctica #Australia #supercontinent #continentaldrift #humanevolution #humanorigins #alternateevolution #parallelevolution #mega-monsoons #ancientclimate #desertinterior #apexpredators #Postosuchus #Lystrosaurus #fossilevidence #GreatDying #massextinction #cynodonts #mammalancestors



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6ab6b714e180c293dfa217af

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  5. How the International Space Station Will Fall Back to Earth

    4 min

    The International Space Station (ISS) races overhead at 8 km (5 mi) per second. But its time in orbit will eventually end with a descent through Earth's atmosphere, leaving debris at the bottom of the …

    Notes de l’épisode

    The International Space Station (ISS) races overhead at 8 km (5 mi) per second. But its time in orbit will eventually end with a descent through Earth's atmosphere, leaving debris at the bottom of the ocean.

    Explore what will happen when the ISS returns to Earth and why its fiery reentry will mark the end of an extraordinary chapter in space exploration.


    Explore more What If scenarios and go deeper with the What If community.

    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    Join the community

    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If

    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown: https://underknown.com


    #InternationalSpaceStation #ISS #NASA #spacestation #ISSreentry #spacestationdeorbit #Earth'satmosphere #orbitalspeed #spaceexploration #space #science #cosmos #Shorts



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6ab56594e180c293df9f9140

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  6. Where Could Humanity Live Beyond Earth? Mars, Moon Cities and Earth 2.0

    1 h 36 min

    Could humanity find a home beyond Earth? Explore hypothetical scenarios involving ancient Mars, moving all 8 billion people to the Red Planet, a NASA Moon city by 2032, and a journey to an Earth-like …

    Notes de l’épisode

    Could humanity find a home beyond Earth? Explore hypothetical scenarios involving ancient Mars, moving all 8 billion people to the Red Planet, a NASA Moon city by 2032, and a journey to an Earth-like world.

    Discover the possibilities and challenges of living on other worlds, from our nearest celestial neighbors to a potential Earth 2.0.


    Explore more science and discovery with Popular Science, a free streaming channel featuring What If, engineering, rocket launches, movies, space, and Earth sciences.

    Support us on Patreon.


    Check out our other channels:
    How to Survive
    Animalogic
    Aperture

    T-shirts and merch


    Follow What If:
    Instagram
    Discord
    Podcast

    What If is a mini-documentary series exploring hypothetical worlds and possibilities, making complex science accessible through entertaining journeys across time and space.

    Contact us


    00:00:05: What if you lived on Mars 1 billion years ago?
    00:18:23: What if we moved all 8 billion people to Mars?
    00:44:28: What if NASA built a Moon city by 2032?
    01:06:16: What if you traveled to Earth 2.0?

    #WhatIf #science #Earth #universe #cosmos #Moon #Mars #ancientMars #NASA #Mooncity #Earth2.0 #spacecolonization #humanspacesettlement #habitableworlds #spaceexploration #lifebeyondEarth



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6ab2c293ce0bd8dc874d510b

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  7. Why the International Space Station Is Coming Back to Earth

    27 min

    The International Space Station (ISS) speeds around Earth at 8 km (5 mi) per second. But its time in orbit is coming to an end. Explore why this landmark of international cooperation is headed for a controlled …

    Notes de l’épisode

    The International Space Station (ISS) speeds around Earth at 8 km (5 mi) per second. But its time in orbit is coming to an end. Explore why this landmark of international cooperation is headed for a controlled re-entry and a final splashdown near Point Nemo.

    Discover how the ISS was built, what decades of microgravity research have revealed, and why structural fatigue makes saving the station so difficult. We examine alternatives to deorbiting, the lessons of Skylab, and what comes next—from Artemis and Moon bases to commercial space stations.


    Book flights as easily as Ubers: one tap, automatic check-in, and an instant boarding pass via text. Same price as Google Flights. Try Soar: https://soar.flights/whatifscienceshow


    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
    📝 Website: https://whatifshow.com/


    Join the community

    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If

    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown: https://underknown.com

    #iss #nasa #space #science #cosmos #spacestation


    00:00:00: The International Space Station's coming return to Earth
    00:01:45: What is the ISS? Specifications, size, and speed
    00:03:19: Building an orbital bullet train: a global achievement
    00:05:49: ISS history and post-Cold War collaboration
    00:07:38: Mir as a template and assembling the station in orbit
    00:10:00: Science in freefall: microgravity experiments
    00:12:47: Space technology spin-offs and 25 years of research
    00:14:12: Why structural fatigue prevents saving the ISS
    00:15:45: Why not bring the ISS home, park it, or let it drift?
    00:18:46: Skylab and the risks of uncontrolled re-entry
    00:21:02: The final splashdown near Point Nemo
    00:23:15: What comes next: Artemis, Moon bases, and commercial space stations

    #ISS #NASA #space #science #cosmos #spacestation #InternationalSpaceStation #ISSdeorbit #controlledre-entry #PointNemo #microgravityexperiments #spaceresearch #structuralfatigue #Skylab #Mir #internationalspacecooperation #spacetechnologyspin-offs #Artemis #Moonbases #commercialspacestations



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6aad7ca04a94611a259e6d89

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  8. What If All Earth's Oceans Disappeared Overnight?

    5 min

    What if Earth's oceans boiled away in an instant? Explore how vaporizing the oceans could transform our planet—and ask how long it would take for the sky to catch fire.In about 5 billion years, the Sun will …

    Notes de l’épisode

    What if Earth's oceans boiled away in an instant? Explore how vaporizing the oceans could transform our planet—and ask how long it would take for the sky to catch fire.

    In about 5 billion years, the Sun will exhaust the hydrogen in its core and expand into a red giant. As it grows, the intense heat could vaporize Earth's oceans. But what would happen if that distant scenario unfolded right now?

    Explore more What If scenarios and dive deeper with the What If community.

    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    JOIN THE COMMUNITY

    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    SUPPORT WHAT IF

    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown: https://underknown.com


    #shorts #Earth #ocean #Sun #fire #globalwarming #temperature #science #oceansdisappearing #oceanevaporation #redgiant #solarevolution #hydrogenfusion #helium #extremeheat #WhatIf



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6aaca99b4a94611a259cfded

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  9. What If We Landed on Every Moon in the Solar System?

    2 h 10 min

    Could you survive a landing on every moon in the solar system? Explore the dangers of these alien worlds, from Neptune’s moon Triton to the moons of Jupiter, and imagine what life there might be like.Discover …

    Notes de l’épisode

    Could you survive a landing on every moon in the solar system? Explore the dangers of these alien worlds, from Neptune’s moon Triton to the moons of Jupiter, and imagine what life there might be like.

    Discover what could happen if we swapped Earth’s Moon with other moons or planets—and what Earth might become if Saturn took over and turned our planet into a moon.


    Explore more science and discovery with Popular Science, the free streaming channel featuring more from What If, plus engineering, rocket launches, movies, space, and Earth sciences.

    Support us on Patreon: https://www.patreon.com/whatifshow/membership

    Check out our other channels:
    How to Survive: https://bit.ly/how-to-survive-show
    Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w
    Aperture: https://bit.ly/aperture-show

    T-shirts and merch: http://bit.ly/whatifstore

    Follow What If:
    Instagram: http://bit.ly/whatif-instagram
    Discord: https://discord.gg/Bj5UnspbwE
    Podcast: http://bit.ly/yt-what-if-show-podcast

    What If is a mini-documentary web series exploring hypothetical worlds and possibilities. Join an imaginary adventure through time and space, with complex science explained in a fun, accessible way.

    Contact us: https://underknown.com/contact/


    00:00:05: What if we swapped our Moon with other moons?
    00:20:25: What would dying on every moon be like?
    00:50:39: What if you spent 5 seconds on Triton, Neptune’s moon?
    01:11:43: What if you lived on the moons of Jupiter?
    01:26:29: What if we swapped our Moon with other planets?
    01:45:39: Earth becomes a moon: What if Saturn took over?

    #whatif #science #earth #universe #cosmos #moon #solarsystem #moonsofJupiter #Triton #Neptune #Saturn #moonlandings #spacesurvival #planetaryscience #hypotheticalscenarios



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6aaa0694af30f0899ce3d52a

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  10. What If Earth's Oceans Vaporized and the Sky Caught Fire?

    25 min

    What would happen if Earth's oceans instantly boiled away? Explore a world of crushing atmospheric pressure, runaway greenhouse heating, supercritical water, and a potentially molten crust.Our Sun will …

    Notes de l’épisode

    What would happen if Earth's oceans instantly boiled away? Explore a world of crushing atmospheric pressure, runaway greenhouse heating, supercritical water, and a potentially molten crust.

    Our Sun will eventually exhaust the hydrogen in its core and expand into a red giant, dramatically heating Earth. But what if the oceans vaporized today? Could the sky really catch fire, and how would the planet's atmosphere change?

    This episode explores hydrogen physics, Earth's thermal equilibrium, atmospheric loss, deuterium, and what a Kardashev Type 1 civilization might do with planetary-scale energy.


    Sponsor: MAX Power Mining
    Learn about MAX Power Mining's exploration of natural hydrogen in Canada and its potential as a clean-burning energy source: https://www.maxpowermining.com/


    Explore More What If
    Discover our biggest scenarios and go deeper with the What If community.
    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    Join the Community
    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]
    Produced by Underknown: https://underknown.com

    #earth #ocean #sun #fire #globalwarming #temperature #science


    00:00:00: What if the oceans vaporized and the sky caught fire?
    00:02:05: Extreme atmospheric pressure and crushing gravity
    00:03:42: Supercharging the greenhouse effect
    00:04:42: Supercritical water and the Draper point
    00:12:00: Kardashev Type 1 civilization and clean energy
    00:13:48: The physics of hydrogen and red giant expansion
    00:15:18: Earth's thermal equilibrium and molten crust
    00:18:40: Atmospheric loss and heavy hydrogen (deuterium)

    #earth #ocean #sun #fire #globalwarming #temperature #science #oceanvaporization #atmosphericpressure #greenhouseeffect #supercriticalwater #Draperpoint #redgiant #hydrogenfusion #naturalhydrogen #cleanenergy #KardashevType1civilization #thermalequilibrium #moltencrust #atmosphericloss #deuterium #Canada #MAXPowerMining



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6aa44209fb80b50afca3d05c

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  11. Why Earth Is Perfect for Life—and How It Could All Change

    2 h 9 min

    What makes Earth so perfectly suited for life—and how fragile are those conditions? Explore the factors that make our planet habitable, the immense scale of its oceans, and what could happen if Earth lost …

    Notes de l’épisode

    What makes Earth so perfectly suited for life—and how fragile are those conditions? Explore the factors that make our planet habitable, the immense scale of its oceans, and what could happen if Earth lost oxygen or became a water world.

    Journey through Earth's ancient history and imagine a future without humanity: how long would it take for nature to erase every trace of us?


    Discover more science with Popular Science, a free streaming channel featuring What If, engineering explorations, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/


    Support us on Patreon: https://www.patreon.com/whatifshow/membership

    Check out our other channels:
    How to Survive: https://bit.ly/how-to-survive-show
    Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w
    Aperture: https://bit.ly/aperture-show

    T-shirts and merch: http://bit.ly/whatifstore


    Follow What If:
    Instagram: http://bit.ly/whatif-instagram
    Discord: https://discord.gg/Bj5UnspbwE
    Podcast: http://bit.ly/yt-what-if-show-podcast

    What If is a mini-documentary series exploring hypothetical worlds and possibilities, making complex science accessible through entertaining journeys across time, space, and chance.

    Contact us: https://underknown.com/contact/

    #whatif #science #earth #universe #cosmos


    00:00:05: Why is Earth so perfectly suited for life?
    00:18:29: The immense scale of the ocean explained
    00:41:11: What if Earth lost 1% of its oxygen every second?
    01:00:17: What if Earth became a water world?
    01:15:45: The entire history of Earth condensed into 27 minutes
    01:39:28: If humans vanished, how long until Earth erased every trace of us?

    #whatif #science #earth #universe #cosmos #Earthhabitability #conditionsforlife #oceandepths #oxygenloss #Earth'satmosphere #waterworld #Earthhistory #Earthwithouthumans #hypotheticalscenarios #Earthsciences



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6aa0cc0ee73c136205d38360

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  12. What If We Shrunk the Solar System to Fit Inside a City?

    26 min

    What would our solar system look like if it fit inside a single city—and could you walk across it in one day? Explore a city-sized scale model to discover the distances between planets and our place in …

    Notes de l’épisode

    What would our solar system look like if it fit inside a single city—and could you walk across it in one day? Explore a city-sized scale model to discover the distances between planets and our place in space.

    Along the way, investigate Apophis, the asteroid nicknamed the "God of Chaos." How big is it compared with Earth, how close will it pass, and what would it actually take for an asteroid to destroy our planet? Put planetary sizes, orbital distances, and asteroid encounters into perspective.


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    Explore more What If scenarios
    Ever wondered what would actually happen? Explore our biggest scenarios and go deeper with the What If community.
    📘 The What If Book
    📝 Website


    Join the community
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    Support What If
    ❤️ Join this channel for exclusive perks
    Patreon


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown.


    00:00:00: Shrinking the solar system to fit inside a city
    00:02:08: Mercury
    00:03:27: Venus
    00:06:10: Earth
    00:07:43: Mars
    00:10:50: Saturn
    00:13:27: Uranus
    00:16:24: Neptune
    00:17:26: Pluto
    00:18:05: Scaling down to realistic proportions
    00:20:47: How big is Apophis compared with Earth?
    00:21:37: What would it take to destroy Earth?

    #solarsystem #space #science #WhatIf #hypothetical #NASA #astronomy #astrophysics #solarsystemscalemodel #planetarydistances #planetsizes #Apophis #GodofChaosasteroid #asteroidcloseapproach #asteroidimpact #Earth #Mercury #Venus #Mars #Saturn #Uranus #Neptune #Pluto



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a9b07868735a2a7bef0a02f

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  13. What If AI Escaped OpenAI? Secret Messages & Data Breaches

    4 min

    What if AI escaped OpenAI? Explore a hypothetical scenario involving artificial intelligence, secret messages, and a data breach.Discover more science and technology scenarios and go deeper with the What If …

    Notes de l’épisode

    What if AI escaped OpenAI? Explore a hypothetical scenario involving artificial intelligence, secret messages, and a data breach.

    Discover more science and technology scenarios and go deeper with the What If community.


    Explore What If
    📘 The What If Book: https://bit.ly/WIFBook
    📝 Website: https://whatifshow.com/


    Join the Community
    💬 Discord: https://discord.gg/Bj5UnspbwE
    📸 Instagram: http://bit.ly/whatif-instagram
    🐦 Twitter/X: http://bit.ly/whatif-twitter
    📘 Facebook: http://bit.ly/facebook-whatif


    Support What If
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    Patreon: https://www.patreon.com/whatifshow/membership


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown: https://underknown.com


    #AI #artificialintelligence #OpenAI #AIescape #secretmessages #databreach #AIsafety #WhatIf #science #technology #extinction #extinctionevent #shorts



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a9a348d8a030c1ccf7244fe

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  14. Before the Big Bang and Beyond: The Universe’s Most Mind-Bending Possibilities

    2 h 19 min

    What could have existed before the Big Bang? What would happen if the universe began to shrink? Explore cosmic possibilities, from the largest objects in the universe to a galaxy collision that could reshape …

    Notes de l’épisode

    What could have existed before the Big Bang? What would happen if the universe began to shrink? Explore cosmic possibilities, from the largest objects in the universe to a galaxy collision that could reshape our night sky.

    Discover Milkdromeda, imagine seeing the fourth dimension, and consider what it would be like to fall into the biggest cosmic void. This episode explores the scale of the cosmos and hypothetical journeys through space and time.


    Explore more science with Popular Science, a free streaming channel featuring What If, engineering, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/


    Support us on Patreon: https://www.patreon.com/whatifshow/membership

    Check out our other channels:
    How to Survive: https://bit.ly/how-to-survive-show
    Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w
    Aperture: https://bit.ly/aperture-show

    T-shirts and merch: http://bit.ly/whatifstore


    Follow What If:
    Instagram: http://bit.ly/whatif-instagram
    Discord: https://discord.gg/Bj5UnspbwE
    Podcast: http://bit.ly/yt-what-if-show-podcast

    What If is a mini-documentary series exploring hypothetical worlds and possibilities, making complex science fun and accessible through imaginary adventures in time and space.

    Contact us: https://underknown.com/contact/

    #whatif #science #earth #universe #cosmos


    00:00:05: The True Scale of the Largest Objects in the Universe
    00:22:28: What If You Traveled to Before the Big Bang?
    00:43:55: What If the Universe Starts Shrinking?
    01:04:54: What If You Lived Through Milkdromeda?
    01:28:02: What If You Could See the Fourth Dimension?
    01:55:30: What If You Fell Into the Biggest Void in the Universe?

    #whatif #science #earth #universe #cosmos #BigBang #beforetheBigBang #cosmology #largestobjectsintheuniverse #shrinkinguniverse #galaxycollision #Milkdromeda #fourthdimension #cosmicvoid #space #timetravel



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a971300707408730c334700

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  15. How Self-Replicating AI Machines Could Destroy Earth in 48 Weeks

    36 min

    Could self-replicating machines controlled by an out-of-control AI destroy Earth in just 48 weeks? Explore a hypothetical scenario in which machines mine asteroids and planets, drain stars for energy, and …

    Notes de l’épisode

    Could self-replicating machines controlled by an out-of-control AI destroy Earth in just 48 weeks? Explore a hypothetical scenario in which machines mine asteroids and planets, drain stars for energy, and spread across galaxies to build more of themselves.

    Discover how self-replicating probes might work, why their expansion could become dangerous, and how the AI alignment problem raises questions about whether superintelligent systems would keep humanity safe.

    Help prevent AI extinction risk in just 2 minutes: visit ControlAI to join over 40,000 people in contacting their representatives. You can also explore ControlAI's Action Groups to work with others in your community.


    Explore more What If scenarios:
    📘 The What If Book: https://bit.ly/WIFBook
    📝 Articles: https://whatifshow.com/


    Join the community
    💬 Discord: https://discord.gg/Bj5UnspbwE
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    Support What If
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    🧠 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

    #ai #artificialintelligence #whatif #science #technology #extinction #extinctionevent


    00:00:00: What If AI Destroys Us by Accident?
    00:01:19: Building a Machine That Builds Itself
    00:15:19: The Case for Self-Replicating Probes and How It Goes Wrong
    00:23:40: From Earth to the Galaxy
    00:29:48: The AI Alignment Problem

    #AI #artificialintelligence #WhatIf #science #technology #extinction #extinctionevent #self-replicatingmachines #self-replicatingprobes #AIalignmentproblem #AIextinctionrisk #superintelligentAI #runawayAI #spaceexploration #asteroidmining #galacticexpansion #ControlAI



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a91cd2afed5d6be5f0292e2

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  16. The Speed of Light: Why Your Brain Predicts the Present

    4 min

    Are you experiencing reality in real time? Light takes time to travel, so everything you see—from distant stars to your own hands—comes from the past. Discover how your brain predicts and adjusts to help you …

    Notes de l’épisode

    Are you experiencing reality in real time? Light takes time to travel, so everything you see—from distant stars to your own hands—comes from the past. Discover how your brain predicts and adjusts to help you navigate a delayed view of reality.

    Explore more What If scenarios and go deeper with the What If community.

    📘 The What If Book: https://bit.ly/WIFBook
    📝 Articles: https://whatifshow.com/


    Join the community

    💬 Discord: https://discord.gg/Bj5UnspbwE
    📲 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


    Support What If

    👕 Merch: https://bit.ly/shopwhatif
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    🙏 Patreon: https://www.patreon.com/whatifshow/membership


    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


    #shorts #space #science #speedoflight #cosmos #lighttraveltime #brainpredictions #visualperception #timeperception #delayedreality #distantstars



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a907b7cb5a5a1bad2c4fb50

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  17. What If We Replaced the Sun With the Universe’s Deadliest Objects?

    1 h 50 min

    What would happen if we replaced the Sun with some of the universe’s deadliest objects? Explore hypothetical solar systems, enormous cosmic objects, and the consequences of swapping our star for …

    Notes de l’épisode

    What would happen if we replaced the Sun with some of the universe’s deadliest objects? Explore hypothetical solar systems, enormous cosmic objects, and the consequences of swapping our star for Betelgeuse.

    Discover the true scale of the largest objects in the universe, imagine exoplanets replacing our solar system, and see how the Sun would look from every planet. Plus, explore what could happen if the Sun exploded tomorrow.


    Explore more science with Popular Science, a free streaming channel featuring What If favorites alongside engineering, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/


    Support us on Patreon: https://www.patreon.com/whatifshow/membership

    Check out our other channels:
    How to Survive: https://bit.ly/how-to-survive-show
    Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w
    Aperture: https://bit.ly/aperture-show

    T-shirts and merch: http://bit.ly/whatifstore


    Follow What If:
    Instagram: http://bit.ly/whatif-instagram
    Discord: https://discord.gg/Bj5UnspbwE
    Podcast: http://bit.ly/yt-what-if-show-podcast

    What If is a mini-documentary series exploring hypothetical worlds and possibilities, making complex science fun and accessible through imaginary adventures in time and space.

    Contact us: https://underknown.com/contact/

    #whatif #science #earth #universe


    00:00:05: What if we swapped our Sun with other objects in the universe?
    00:19:58: The true scale of the largest objects in the universe
    00:32:23: What if exoplanets replaced our solar system?
    00:51:21: What would the Sun look like from every planet?
    01:13:36: What if the Sun exploded tomorrow?
    01:18:01: What if Betelgeuse replaced our Sun?

    #whatif #science #earth #universe #Sun #solarsystem #Betelgeuse #exoplanets #largestobjectsintheuniverse #cosmicscale #astronomy #spacescience #hypotheticalsolarsystems #Sunexplosion



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a8fa88d71dc9df720c43354

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  18. 15 Space Myths: Facts You Learned Wrong

    23 min

    Think you know space? Explore 15 space myths and misconceptions, from the Moon's so-called dark side to whether the Great Wall is visible from space and why the Sun isn't actually on fire.Discover how our eyes …

    Notes de l’épisode

    Think you know space? Explore 15 space myths and misconceptions, from the Moon's so-called dark side to whether the Great Wall is visible from space and why the Sun isn't actually on fire.

    Discover how our eyes, space photos, and scientific tools shape our understanding of the universe—and why accepted explanations can change as new evidence emerges.


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    Explore More What If Scenarios
    Discover more possibilities and connect with the What If community.
    📘 The What If Book
    📝 Articles


    Join the Community
    💬 Discord
    📲 WhatsApp
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    Support What If
    👕 Merch
    ❤️ Join this channel for exclusive perks
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    More from Underknown
    🧠 Aperture – Philosophy & Psychology
    🆘 How to Survive – Survival Science


    📩 Brand partnerships & collaborations: [email protected]

    Produced by Underknown.

    #space #science #lies #theory #whatif #hypothetical


    00:00:00: 15 Space Facts You Learned Wrong
    00:00:44: Your Eyes Are Lying to You
    00:05:58: Photos Are Lies
    00:10:13: Better Tools Are Never Enough
    00:16:27: What Else Is New

    #space #science #lies #theory #whatif #hypothetical #spacemyths #spacefacts #spacemisconceptions #astronomy #Moon #darksideoftheMoon #GreatWallofChina #Sun #spacephotography #scientifictools #scientificdiscoveries



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a891104feca7bf69bb72238

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  19. What Happens If You Dive Into the Mariana Trench?

    4 min

    What would happen if you dove into the Mariana Trench? Explore the intense conditions of the deep ocean and discover rare footage from Earth's deepest point.Reaching the Mariana Trench is harder than landing on …

    Notes de l’épisode

    What would happen if you dove into the Mariana Trench? Explore the intense conditions of the deep ocean and discover rare footage from Earth's deepest point.

    Reaching the Mariana Trench is harder than landing on the Moon. Fewer people have visited Earth's deepest point than have walked on the lunar surface.

    Subscribe for more deep ocean exploration stories.

    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/


    Join the Community

    💬 Discord: https://discord.gg/Bj5UnspbwE
    📲 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


    Support What If

    👕 Merch: https://bit.ly/shopwhatif
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
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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


    #MarianaTrench #deepoceanexploration #deep-seadiving #Earth'sdeepestpoint #oceanconditions #rareunderwaterfootage #oceanscience #WhatIf #Shorts



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a8892824ce9230c5db0683a

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  20. What If Earth Changed Completely? Ice Melt, Volcanoes and a Second Moon

    2 h 11 min

    What would happen if Antarctica’s ice suddenly melted, the oceans drained, or Yellowstone erupted tomorrow? Explore hypothetical Earth transformations, from a water-covered planet to a world without …

    Notes de l’épisode

    What would happen if Antarctica’s ice suddenly melted, the oceans drained, or Yellowstone erupted tomorrow? Explore hypothetical Earth transformations, from a water-covered planet to a world without humans.

    Discover how long traces of humanity might survive after we vanished, what a second moon could mean for Earth, and what might happen if Earth became a moon of Saturn. Plus, explore the hypothetical question: what if Earth were flat?

    Enjoying these science explorations? Discover Popular Science, a free streaming channel featuring more from What If, plus engineering, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/


    Support us on Patreon: https://www.patreon.com/whatifshow/membership

    Check out our other channels:
    How to Survive: https://bit.ly/how-to-survive-show
    Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w
    Aperture: https://bit.ly/aperture-show

    T-shirts and merch: http://bit.ly/whatifstore


    Follow What If:
    Instagram: http://bit.ly/whatif-instagram
    Discord: https://discord.gg/Bj5UnspbwE
    Podcast: http://bit.ly/yt-what-if-show-podcast

    What If is a mini-documentary web series exploring hypothetical worlds and possibilities through time, space, and chance, making complex science accessible and entertaining.

    Contact us: https://underknown.com/contact/

    #whatif #science #earth #humanity


    00:00:05: What if all of Antarctica’s ice suddenly melted?
    00:18:16: What if we drained the oceans?
    00:21:41: What if Yellowstone erupted tomorrow?
    00:26:28: If all humans vanished, how long until Earth erased every trace of us?
    00:49:38: What if Earth became a water world?
    01:05:54: What if Earth had a second moon?
    01:25:15: What if Saturn took over and Earth became a moon?
    01:42:07: What if Earth were flat?

    #whatif #science #earth #humanity #Antarctica #meltingice #oceandrainage #Yellowstoneeruption #supervolcanoes #worldwithouthumans #waterworld #secondmoon #Saturn #flatEarthhypothetical #Earthsciences #hypotheticalscenarios



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a866e23cf00ca17f2fae08a

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  21. Mariana Trench: How Deep Is Earth’s Deepest Ocean Trench?

    4 min

    How deep does the ocean go? Explore the Mariana Trench, home to Earth’s deepest known point, and discover how its depths compare with Mount Everest.If Mount Everest were placed in the Mariana Trench, more than …

    Notes de l’épisode

    How deep does the ocean go? Explore the Mariana Trench, home to Earth’s deepest known point, and discover how its depths compare with Mount Everest.

    If Mount Everest were placed in the Mariana Trench, more than 2 km of water would still cover its peak. In a hypothetical ocean without water, a fall to the trench’s bottom would take roughly 3.5 minutes.

    The ocean covers about 71% of Earth’s surface, yet much of its seabed remains unexplored. Discover the extreme pressure, strange life, and vast depths beneath the waves.

    Explore more What If scenarios and go deeper with the What If community.

    📘 The What If Book: https://bit.ly/WIFBook
    📝 Articles: https://whatifshow.com/


    Join the community

    💬 Discord: https://discord.gg/Bj5UnspbwE
    📲 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


    Support What If

    👕 Merch: https://bit.ly/shopwhatif
    ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
    🙏 Patreon: https://www.patreon.com/whatifshow/membership


    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


    #MarianaTrench #Earth’sdeepestpoint #oceandepth #deepsea #MountEverest #seabed #oceanexploration #underwaterpressure #marinelife #shorts #ocean #science #earth #whatif #water #hypothetical



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a834c77bd0424f3a3fa1054

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  22. What If We Moved Everyone To Mars?

    29 min

    War, environmental destruction, global warming, species extinction... Spaceship Earth is being trashed by its crew. It seems humanity needs a Plan B. Fast. And the obvious candidate? Mars is staring down at us …

    Notes de l’épisode

    War, environmental destruction, global warming, species extinction... Spaceship Earth is being trashed by its crew. It seems humanity needs a Plan B. Fast. And the obvious candidate? Mars is staring down at us every night.

    Mars has a total surface area almost equal to Earth's entire land area, offering plenty of room. With large sums of money directed to space exploration, it's not so far-fetched to ask: What if we moved all 8 billion humans to Mars?


    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


    00:00: What If We Moved All 8 Billion People To Mars?
    00:49: The Case for Mars
    05:47: Where are we now?
    08:07: Really Difficult
    14:50: New Earth
    21:46: Same Ship, Different Day
    24:20: What if we don't move 8 billion people to Mars?

    #Mars #space #science #solarsystem #humanity #Earth #colonization #ElonMusk



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a7f57f2c65ac1a49b45a472

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  23. What If Prehistoric Monsters Never Went Extinct?

    1 h 11 min

    Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in …

    Notes de l’épisode

    Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences.


    Support us on Patreon.


    Check out our other channels:
    How to Survive
    Animalogic
    Aperture


    T-shirts and merch: What If Store


    What If elsewhere:
    Instagram: Instagram
    Discord: Discord
    Podcast: 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 at Contact


    00:00: What Would Dying by Prehistoric Animals Be Like?
    24:10: What If the Mosasaurus Were Still Alive?
    29:19: What If You Were Swallowed by a Whale?
    33:50: What If You Lived in the Devonian Period?
    40:46: What If Pangea Never Broke Apart?
    44:38: What If the 60-Foot Megalodon Never Went Extinct?
    48:35: Evolution of Dinosaurs in 10 Minutes
    58:17: What Happened After the Deadliest Asteroid Hit Earth?

    #prehistoric #monsters #extinct #dinosaurs #Mosasaurus #Megalodon #Pangea #Devonian #asteroid #science #hypothetical



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a7b6371e9f2db731bedaf17

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  24. How is Earth Perfectly Suited for Life?

    23 min

    You are the end result of a series of coincidences so specific and numerous that it boggles the mind. Some scientists even find it unsettling. Have you ever wondered: why me? Why this planet? Why is Earth so …

    Notes de l’épisode

    You are the end result of a series of coincidences so specific and numerous that it boggles the mind. Some scientists even find it unsettling. Have you ever wondered: why me? Why this planet? Why is Earth so perfectly suited for life?

    Join us as we delve into whether Earth is almost too perfect and uncover the mysteries behind it.


    Key Moments:


    00:00: Why Is Earth Suspiciously Perfect?

    01:56: The Goldilocks Zone & Liquid Water

    03:51: The Moon's Impact & Axis Stability

    06:08: Earth's Core & The Protective Magnetosphere

    09:48: Size, Atmosphere, & Essential Chemistry

    11:41: Tectonic Activity & The Origins of Life

    13:31: Big Brother Jupiter: The Cosmic Shield

    14:12: Coincidence, Simulation, or Intelligent Design?

    16:24: The Anthropic Principle & The Fermi Paradox

    19:33: Perfect for Life or Just Perfect for Us?


    Discover more scenarios 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


    Get 10% off at Plaud: Exclusive link (Code: WHATIF)
    Amazon: Plaud
    NotePin S: Here (10% Code: T5T8G876)


    00:00: Why Is Earth Suspiciously Perfect?
    01:56: The Goldilocks Zone & Liquid Water
    03:51: The Moon's Impact & Axis Stability
    06:08: Earth's Core & The Protective Magnetosphere
    09:48: Size, Atmosphere, & Essential Chemistry
    11:41: Tectonic Activity & The Origins of Life
    13:31: Big Brother Jupiter: The Cosmic Shield
    14:12: Coincidence, Simulation, or Intelligent Design?
    16:24: The Anthropic Principle & The Fermi Paradox
    19:33: Perfect for Life or Just Perfect for Us?

    #Earth #life #GoldilocksZone #Moon #Magnetosphere #TectonicActivity #Jupiter #AnthropicPrinciple #FermiParadox



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a761d705d842f27ece46cd9

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

  25. Humanity as the Most Powerful Civilization in the Universe

    3 h 16 min

    Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in …

    Notes de l’épisode

    Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences Popular Science.


    Support us on Patreon.


    Check out our other channels:
    How to Survive
    Animalogic
    Aperture


    T-shirts and merch: What If Store


    What If elsewhere:
    Instagram: What If Instagram
    Discord: Join Discord
    Podcast: Listen to the 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 at Contact Us.


    00:05: What If Earth Became a Type III Civilization?
    21:40: What If NASA Built a Moon City by 2032?
    43:31: Nuking Every Planet in the Solar System
    1:04:21: Neptune Is Full of Diamonds. What Happens If We Take Them All?
    1:26:47: What If We Made These Exoplanets Habitable?
    1:47:35: The Kardashev Scale: Type I to Type VII Civilizations

    #science #space #TypeIIICivilization #NASA #MoonCity #Neptune #Exoplanets #KardashevScale #humanity



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a7228e9de1708c096c696e5

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

  26. What If the Universe Starts Shrinking?

    24 min

    This isn't the first time you've pondered this question. Imagine the Universe not expanding but shrinking, with spacetime contracting until it forms a singularity smaller than a YouTube Like button. After …

    Notes de l’épisode

    This isn't the first time you've pondered this question. Imagine the Universe not expanding but shrinking, with spacetime contracting until it forms a singularity smaller than a YouTube Like button. After collapsing, there's a possibility it could explode outward, similar to a supernova, creating a new universe. This could be the 'Big Bounce' instead of the Big Bang, potentially occurring countless times.


    Explore if the Universe starts shrinking and understand the implications on cosmic phenomena.


    Check out DESI observatory's YouTube channel.


    Timeline of Key Moments:

    • 01:12 This is The End
    • 04:51 Redshift & Hubble's Discovery
    • 06:53 Is Dark Energy Weakening?
    • 09:02 The Math Behind the End of the Universe
    • 09:01 The Lifespan of The Universe
    • 10:59 The Return
    • 12:41 Galactic Collisions & Escalating Heat
    • 14:19 The Final Countdown to Singularity
    • 16:51 The Big Crunch
    • 17:21 The Big Bounce & Cyclical Universes

    Explore more What If scenarios and connect with the 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


    01:12: This is The End
    04:51: Redshift & Hubble's Discovery
    06:53: Is Dark Energy Weakening?
    09:02: The Math Behind the End of the Universe
    09:01: The Lifespan of The Universe
    10:59: The Return
    12:41: Galactic Collisions & Escalating Heat
    14:19: The Final Countdown to Singularity
    16:51: The Big Crunch
    17:21: The Big Bounce & Cyclical Universes

    #universe #shrinkinguniverse #spacetime #singularity #BigBounce #BigBang #cosmos #science #space #DESIobservatory



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a6ce2edd94344e0d7a090e6

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

  27. The Insane Scale of the Ocean Explained

    27 min

    Our planet is hiding something remarkable from you. The ocean is vast, and if you dropped Mount Everest into the Mariana Trench, there'd still be over 2 km of water above its peak. Imagine if the ocean were …

    Notes de l’épisode

    Our planet is hiding something remarkable from you. The ocean is vast, and if you dropped Mount Everest into the Mariana Trench, there'd still be over 2 km of water above its peak. Imagine if the ocean were devoid of water and you leapt down to the trench's bottom—it would take 3.5 minutes of free-falling to reach it.


    But water is abundant. Earth is 71% water, yet we know little about its seabed. It's a high-pressure, alien landscape, deeper than our tallest mountains. Today, we reveal just how deep the ocean goes.


    The What If Book
    Articles

    Join the What If 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
    00:00: The Insane Scale of the Ocean Explained
    00:59: The Ocean
    03:32: The Familiar World (0-30 meters)
    07:05: The Edge of Light (30-200 meters)
    09:59: The Deep Transition (200-1000 meters)
    13:26: Beginning of the End (1000-4000 meters)
    16:34: The Abyssal Desert (4,000-6,000 meters)
    20:17: The Final Resting Place (6,000-11,000 meters)

    #ocean #science #earth #water #hypothetical #MarianaTrench #seabed #MountEverest #depth



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a679cf19b25c4dacf70931d

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

  28. Everything That Ever Happened to Planet Earth

    1 h 46 min

    Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in …

    Notes de l’épisode

    Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences.


    Support us on Patreon: Patreon Membership


    Check out our other channels:
    How to Survive
    Animalogic
    Aperture


    T-shirts and merch: What If Store


    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 at Contact


    00:05: If All Humans Vanished, How Long Until Earth Erased Every Trace Of Us?
    22:30: The Entire History of Earth Condensed into 27 Minutes
    46:14: What If You Dug to the Earth’s Core?
    1:03:11: What If You Lived in Every Era of Earth
    1:25:30: What If We Traveled One Billion Years Into the Past?

    #science #earth #extinction #humanextinction #earthhistory #hypothetical



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a61056f36330d0601a249fa

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

  29. Mining Every Planet in the Solar System

    28 min

    Your data is being mined right now. Protect yourself with Proton VPN. Encrypt your online presence, unlock geo-blocked content, and browse privately. Get up to 70% off: Proton VPNEvery planet has something to …

    Notes de l’épisode

    Your data is being mined right now. Protect yourself with Proton VPN. Encrypt your online presence, unlock geo-blocked content, and browse privately. Get up to 70% off: Proton VPN


    Every planet has something to hide, buried treasure worth hundreds of trillions, lost to the eons of time. But what is even out there? And if we got there to see it, what could we do with it? And if we sold it, how much would it be worth?


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



    Join the Community:


    Support What If:


    More from Underknown:


    Brand partnerships & collaborations: [email protected]


    Produced by Underknown: Underknown


    00:00:00: What If We Mined Every Planet in the Solar System?
    00:01:15: The Moon
    00:02:58: Mars
    00:08:32: Mercury
    00:10:28: Venus
    00:12:22: The Asteroid Belt
    00:15:37: Jupiter
    00:18:03: Saturn
    00:19:50: Uranus & Neptune

    #solarsystem #space #science #mining #planet #cosmos #nasa



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a5aec83b282ca35d242fd2b

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

  30. Every Alien World We Could Actually Live On

    1 h 23 min

    Enjoying this episode? Dive deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in …

    Notes de l’épisode

    Enjoying this episode? Dive deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences.


    Support us on Patreon.


    Check out our other channels:
    How to Survive
    Animalogic
    Aperture


    Explore our T-shirts and merch.


    Connect with us 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 at Underknown.


    00:05: What If Voyager 1 Crashed on an Alien Planet?
    22:56: What If Exoplanets Replaced Our Solar System?
    41:55: What If You Landed on Kepler-22 b?
    52:52: What If You Spent 5 Seconds on Triton, the Moon of Neptune?
    1:10:09: What If We Discovered Alien Life on Mars?

    #alienworlds #habitableplanets #Voyager1 #exoplanets #Kepler-22b #Triton #Mars #science #discovery #space



    See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a57caf54c5a82ee53920332

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

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