Science & Futurism with Isaac Arthur

Latest Episodes:

Cosmic Strings – Cracks in the Fabric of the Universe Apr 09, 2026

Show notes

Cosmic strings may be ultra-thin defects in spacetime—relic “cracks” from the early universe. How we’d detect them, what they mean for physics, and how aliens might exploit them.

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

Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world

🛒 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:

Cosmic Strings – Cracks in the Fabric of the Universe

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro - Cracks in the Fabric of the Universe

6:11 From Defects to Cosmic Strings

13:31 Civilizations and Cosmic Strings: Tools, Traps, and Temptations

19:43 Nebula

20:39 Cousins, Confusions, and What a Discovery Would Mean

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

Cosmic Strings – Cracks in the Fabric of the Universe (Narration Only) Apr 09, 2026

Show notes

Cosmic strings may be ultra-thin defects in spacetime—relic “cracks” from the early universe. How we’d detect them, what they mean for physics, and how aliens might exploit them.

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

Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world

🛒 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:

Cosmic Strings – Cracks in the Fabric of the Universe

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro - Cracks in the Fabric of the Universe

6:11 From Defects to Cosmic Strings

13:31 Civilizations and Cosmic Strings: Tools, Traps, and Temptations

19:43 Nebula

20:39 Cousins, Confusions, and What a Discovery Would Mean

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

Interstellar Banking - The Galactic Financial System (Narration Only) Apr 04, 2026

Show notes

Interstellar city-states may dominate future space travel, governing the laser highways that connect stars and shape galactic civilization.

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

Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world

Check out Practical Engineering: https://nebula.tv/videos/realengineering-the-anatomy-of-the-nokia-3310/?ref=isaacarthur

🛒 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:

Interstellar Banking - The Galactic Financial System

Produced & Narrated by: Isaac Arthur

Written & Edited by: Briana Brownell, Isaac Arthur, Merv Johnson II, Thomas Owens

Graphics from Jeremy Jozwik & Sergio Botero

Music Courtesy of Chris Zabriskie & Stellardrone

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

4:45 Foundations of Currency in Space

6:06 Commodity Money

8:47 Fiat Money

10:40 Crypto & Distributed Ledgers

12:09 Time Dilation, Distance, and the Death of Real-Time Banking

12:55 Interplanetary Banking

18:34 Interstellar Banking

19:50 Interstellar Banking (Light-Years Away)

22:56 Intergalactic & FTL Banking

25:09 Automation, AI, and Autonomous Banking

26:22 CT Scan

27:28 Cultural and Ethical Dimensions of Cosmic Wealth

28:45 The Economics of Forever

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

Interstellar Banking - The Galactic Financial System Apr 04, 2026

Show notes

Interstellar city-states may dominate future space travel, governing the laser highways that connect stars and shape galactic civilization.

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

Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world

Check out Practical Engineering: https://nebula.tv/videos/realengineering-the-anatomy-of-the-nokia-3310/?ref=isaacarthur

🛒 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:

Interstellar Banking - The Galactic Financial System

Produced & Narrated by: Isaac Arthur

Written & Edited by: Briana Brownell, Isaac Arthur, Merv Johnson II, Thomas Owens

Graphics from Jeremy Jozwik & Sergio Botero

Music Courtesy of Chris Zabriskie & Stellardrone

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

4:45 Foundations of Currency in Space

6:06 Commodity Money

8:47 Fiat Money

10:40 Crypto & Distributed Ledgers

12:09 Time Dilation, Distance, and the Death of Real-Time Banking

12:55 Interplanetary Banking

18:34 Interstellar Banking

19:50 Interstellar Banking (Light-Years Away)

22:56 Intergalactic & FTL Banking

25:09 Automation, AI, and Autonomous Banking

26:22 CT Scan

27:28 Cultural and Ethical Dimensions of Cosmic Wealth

28:45 The Economics of Forever

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

The Space Habitat Diaspora – Humanity Spreads Without Planets Apr 02, 2026

Show notes

Humanity may not colonize planets—we may build our own worlds. Explore how rotating space habitats could spread across the Solar System and beyond, forming a vast diaspora of artificial worlds that reshape civilization and interstellar expansion.

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

Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world

🛒 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:

The Space Habitat Diaspora – Humanity Spreads Without Planets

Written, Produced & Narrated by: Isaac Arthur

Graphics from Bryan Versteeg, Jeremy Jozwik, Sergio Botero, Udo Schroeter

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.

The Space Habitat Diaspora – Humanity Spreads Without Planets (Narration Only) Apr 02, 2026

Show notes

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

Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world

🛒 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:

The Space Habitat Diaspora – Humanity Spreads Without Planets

Written, Produced & Narrated by: Isaac Arthur

Graphics from Bryan Versteeg, Jeremy Jozwik, Sergio Botero, Udo Schroeter

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.

The End of Science Mar 31, 2026

Show notes

Is science nearing its limits? We explore whether humanity could ever run out of discoveries—or if the universe guarantees endless questions, deeper mysteries, and new frontiers forever.

🌏 Get Exclusive NordVPN deal + 4 months extra

here → https://nordvpn.com/isaacarthur It’s risk-free

with Nord’s 30-day money-back guarantee! ✌️

🛒 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:

The End of Science

Episode 488a; Originally Aired: March 1, 2025; Nebula Exclusive

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", "Oxygen Garden"

Stellardrone, "Red Giant", "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.

The End of Science (Narration Only) Mar 31, 2026

Show notes

Is science nearing its limits? We explore whether humanity could ever run out of discoveries—or if the universe guarantees endless questions, deeper mysteries, and new frontiers forever.

🌏 Get Exclusive NordVPN deal + 4 months extra

here → https://nordvpn.com/isaacarthur It’s risk-free

with Nord’s 30-day money-back guarantee! ✌️

🛒 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:

The End of Science

Episode 488a; Originally Aired: March 1, 2025; Nebula Exclusive

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", "Oxygen Garden"

Stellardrone, "Red Giant", "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.

Civilizations at the End of Time - How Intelligence Survives the Death of the Universe (Narration Only) Mar 28, 2026

Show notes

Civilizations at the end of time—how intelligence could survive heat death, cosmic isolation, entropy, and the universe’s longest future eras.

Take back your personal data with Incogni! Use code isaacarthur at the link below and get 60% off annual plans: https://incogni.com/isaacarthur

🛒 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: Civilizations at the End of Time - How Intelligence Survives the Death of the Universe

Written, Produced & Narrated by: Isaac Arthur

Script Editors:

Andy Popescu, Briana Brownell, Connor Hogan, Darius Said, David McFarlane, Edward Nardella, Eustratius Graham, Gregory Leal, Jefferson Eagley, Keith Blockus, Konstantin Sokerin, Luca de Rosa, Ludwig Luska, Lukas Konecny, Michael Gusevsky, Mitch Armstrong, MolbOrg, Naomi Kern, Philip Baldock, Sigmund Kopperud, Steve Cardon, Tiffany Penner, Yamagishi

Graphics Courtesy of:

Edward Nardella, Jakub Grygier, Jarred Eagley, Jeremy Jozwik, Justin Dixon, Katie Byrne, Ken York of YD Visual, LegionTech Studios, Mafic Studios, Misho Yordanov, Murat Mamkegh, Pierre Demet, Sergio Botero, Stefan Blandin, Udo Schroeter, and Select imagery/video supplied by Getty Images

Music Courtesy of:

AJ Prasad, Chris Zabriskie, Dan McLeod, NeptuneUK, Lombus, Markus Junnikkala, Miguel Johnson, Phase Shift, Stellardrone, Taras Harkavyi, and Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

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

Civilizations at the End of Time - How Intelligence Survives the Death of the Universe Mar 28, 2026

Show notes

Civilizations at the end of time—how intelligence could survive heat death, cosmic isolation, entropy, and the universe’s longest future eras.

Take back your personal data with Incogni! Use code isaacarthur at the link below and get 60% off annual plans: https://incogni.com/isaacarthur

🛒 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: Civilizations at the End of Time - How Intelligence Survives the Death of the Universe

Written, Produced & Narrated by: Isaac Arthur

Script Editors:

Graphics Courtesy of:

Music Courtesy of:

AJ Prasad, Chris Zabriskie, Dan McLeod, NeptuneUK, Lombus, Markus Junnikkala, Miguel Johnson, Phase Shift, Stellardrone, Taras Harkavyi, and Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

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

Our TOPPODCAST Picks

Follow Us

Stay Connected

Science & Futurism with Isaac Arthur

Related Podcasts

Links

Stay Connected