Science & Futurism with Isaac Arthur

Latest Episodes:

Big Alien Theory Feb 22, 2026

Show notes

Why might alien intelligence evolve at gigantic scales? Big Alien Theory explores how size alone could silence advanced civilizations.

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Credits:

Big Alien Theory

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Phase Shift, "Forest Night"

Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector"

Stellardrone, "Billions and Billions"

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Big Alien Theory (Narration Only) Feb 22, 2026

Show notes

Why might alien intelligence evolve at gigantic scales? Big Alien Theory explores how size alone could silence advanced civilizations.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

Check out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth?ref=isaacarthur

🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/

🌐 Visit our Website: http://www.isaacarthur.net

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💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits:

Big Alien Theory

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Phase Shift, "Forest Night"

Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector"

Stellardrone, "Billions and Billions"

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Interstellar Relays - Moving Signals and Spaceships Between the Stars (Narration Only) Feb 19, 2026

Show notes

How interstellar relays could move data, cargo, and starships between stars using lasers, light sails, and cosmic-scale infrastructure.

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Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

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Credits:

Interstellar Relays - Moving Signals and Spaceships Between the Stars

Written, Produced & Narrated by: Isaac Arthur

Graphics from Bryan Versteeg, Fishy Tree, Jeremy Jozwik, Melänovis, Udo Schroeter

Music Courtesy of Chris Zabriskie & Stellardrone

Select imagery/video supplied by Getty Images

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Interstellar Relays - Moving Signals and Spaceships Between the Stars Feb 19, 2026

Show notes

How interstellar relays could move data, cargo, and starships between stars using lasers, light sails, and cosmic-scale infrastructure.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/

🌐 Visit our Website: http://www.isaacarthur.net

❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur

⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur

👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/

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💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits:

Interstellar Relays - Moving Signals and Spaceships Between the Stars

Written, Produced & Narrated by: Isaac Arthur

Graphics from Bryan Versteeg, Fishy Tree, Jeremy Jozwik, Melänovis, Udo Schroeter

Music Courtesy of Chris Zabriskie & Stellardrone

Select imagery/video supplied by Getty Images

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Alien Mathematics (Narration Only) Feb 15, 2026

Show notes

Is math truly universal—or just human? Explore how alien minds might think, count, and reason in ways we don’t recognize as mathematics at all.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

Check out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth?ref=isaacarthur

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❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur

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Credits: Alien Mathematics

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

Chapters

0:00 Intro

2:02 Why We Expect Mathematics to Be Universal

6:32 Math Is Not the Same Even for Humans

10:47 How Alien Biology Could Reshape Their Mathematics

16:44 Alien Logic: When the Rules Themselves Don’t Match

20:37 Oldest & Newest

21:41 Can We Ever Bridge the Mathematical Gap?

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Alien Mathematics Feb 15, 2026

Show notes

Is math truly universal—or just human? Explore how alien minds might think, count, and reason in ways we don’t recognize as mathematics at all.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

Check out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth?ref=isaacarthur

🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join

🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/

🌐 Visit our Website: http://www.isaacarthur.net

🎬 Join Nebula: https://go.nebula.tv/isaacarthur

❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur

⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur

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💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits: Alien Mathematics

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

Chapters

0:00 Intro

2:02 Why We Expect Mathematics to Be Universal

6:32 Math Is Not the Same Even for Humans

10:47 How Alien Biology Could Reshape Their Mathematics

16:44 Alien Logic: When the Rules Themselves Don’t Match

20:37 Oldest & Newest

21:41 Can We Ever Bridge the Mathematical Gap?

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Space Hotels - How Close Are We to Vacationing in Orbit? (Narration Only) Feb 12, 2026

Show notes

How close are we to vacationing in orbit? Space hotels, real costs, and the tipping point where space tourism becomes normal.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

The Overview Effekt https://nebula.tv/overvieweffekt?ref=isaacarthur

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

Support us on Patreon: https://www.patreon.com/IsaacArthur

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❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur

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Credits: Space Hotels - How Close Are We to Vacationing in Orbit?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Space Hotels - How Close Are We to Vacationing in Orbit? Feb 12, 2026

Show notes

How close are we to vacationing in orbit? Space hotels, real costs, and the tipping point where space tourism becomes normal.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

The Overview Effekt https://nebula.tv/overvieweffekt?ref=isaacarthur

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

Support us on Patreon: https://www.patreon.com/IsaacArthur

Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur

Facebook Group: https://www.facebook.com/groups/1583992725237264/

Reddit: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

SFIA Discord Server: https://discord.gg/53GAShE

🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join

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🌐 Visit our Website: http://www.isaacarthur.net

❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur

⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur

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💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits: Space Hotels - How Close Are We to Vacationing in Orbit?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through Space (Narration Only) Feb 08, 2026

Show notes

Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

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🌐 Visit our Website: http://www.isaacarthur.net

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Credits:

Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through Space

Written, Produced & Narrated by:

Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:38 What Is a Wormhole?

5:21 Could Wormholes Exist Naturally?

8:49 What Keeps a Wormhole Open?

12:08 Can We Build an Artificial Wormhole?

16:05 How Would You Travel Through One?

20:56 So Where Are We?

25:14 Civilization across the Stableways

30:58 Nebula

32:10 Bridges to Eternity

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through Space Feb 08, 2026

Show notes

Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology

Check out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth?ref=isaacarthur

🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join

🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/

🌐 Visit our Website: http://www.isaacarthur.net

❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur

⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur

👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/

📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/

🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur

💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits:

Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through Space