What if we built entire planets around tiny black holes? Explore engineered micro worlds, artificial gravity, and the future of compact megastructures.

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Credits:

Micro Planets - Building Artificial Worlds with Black Hole Cores

Written, Produced & Narrated by: Isaac Arthur

Graphics from Jeremy Jozwik & Ken York

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.

What if we built entire planets around tiny black holes? Explore engineered micro worlds, artificial gravity, and the future of compact megastructures.

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

Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction

Check out Practical Engineering: https://nebula.tv/practical-engineering?ref=isaacarthur

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Credits:

Micro Planets - Building Artificial Worlds with Black Hole Cores

Written, Produced & Narrated by: Isaac Arthur

Graphics from Jeremy Jozwik & Ken York

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.

Colonizing brown dwarfs: habitats, megastructures, and hidden homes around failed stars. Could these dim embers power civilizations for trillions of years?

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

Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction

Check out 17 Pages: https://nebula.tv/17pages?ref=isaacarthur

and A Bit Obscure https://nebula.tv/abitfrank/a-bit-obscure?ref=isaacarthur

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Credits:

Colonizing Brown Dwarfs – Life Around Failed Stars

Written, Produced & Narrated by: Isaac Arthur

Graphics from Fishy Tree, Jeremy Jozwik, Udo Schroeter

Music Courtesy of Chris Zabriskie & Stellardrone

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:56 WHAT A BROWN DWARF IS

7:15 L Dwarfs

11:57 T-Dwarfs

17:04 Nebula

18:15 Habitable Zones

22:12 Megastructures

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

Colonizing brown dwarfs: habitats, megastructures, and hidden homes around failed stars. Could these dim embers power civilizations for trillions of years?

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

Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction

Check out 17 Pages: https://nebula.tv/17pages?ref=isaacarthur

and A Bit Obscure https://nebula.tv/abitfrank/a-bit-obscure?ref=isaacarthur

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Credits:

Colonizing Brown Dwarfs – Life Around Failed Stars

Written, Produced & Narrated by: Isaac Arthur

Graphics from Fishy Tree, Jeremy Jozwik, Udo Schroeter

Music Courtesy of Chris Zabriskie & Stellardrone

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:56 WHAT A BROWN DWARF IS

7:15 L Dwarfs

11:57 T-Dwarfs

17:04 Nebula

18:15 Habitable Zones

22:12 Megastructures

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

From Goddard’s first rocket to space elevators and mass drivers, we explore 100 years of rocketry—and the launch technologies that could carry humanity beyond rockets.

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Credits: Beyond Rockets - 100 Years of Rocketry and What Comes Next

Written, Produced & Narrated by: Isaac Arthur

Editor: Charles Slatkin

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:48 The Pioneering Century

5:49 The Physics of Rockets

8:20 The Coming Revolution in Launch Systems

11:50 Beyond Rockets — The Alternative Gateways to Space

12:26 Space Elevators

13:49 Skyhooks and Rotovators

15:04 Orbital Rings

17:58 Mass Drivers and Coilguns

19:05 Nebula

20:18 Launch Loops and Dynamic Tethers

21:13 High-Altitude and Hybrid Launch Systems

22:39 Toward a Post-Rocket Civilization

23:15 The Road Ahead — Humanity’s Next Launch Century

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

From Goddard’s first rocket to space elevators and mass drivers, we explore 100 years of rocketry—and the launch technologies that could carry humanity beyond rockets.

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

Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction

Check out Day Pass: https://nebula.tv/daypass?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/

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

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

Credits: Beyond Rockets - 100 Years of Rocketry and What Comes Next

Written, Produced & Narrated by: Isaac Arthur

Editor: Charles Slatkin

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:48 The Pioneering Century

5:49 The Physics of Rockets

8:20 The Coming Revolution in Launch Systems

11:50 Beyond Rockets — The Alternative Gateways to Space

12:26 Space Elevators

13:49 Skyhooks and Rotovators

15:04 Orbital Rings

17:58 Mass Drivers and Coilguns

19:05 Nebula

20:18 Launch Loops and Dynamic Tethers

21:13 High-Altitude and Hybrid Launch Systems

22:39 Toward a Post-Rocket Civilization

23:15 The Road Ahead — Humanity’s Next Launch Century

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

What happens when AI controls prices, jobs, markets, and growth itself? Explore the future of an economy run by machines—and what it means for work, power, and humanity.

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

Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction

Check out Abolish Everything https://nebula.tv/abolish?ref=isaacarthur

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Credits: What Happens When AI Runs the Entire Economy?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro - The Invisible Hand Becomes a Neural Network

2:58 What Does “Running the Economy” Actually Mean?

5:30 What Does “Running the Economy” Actually Mean?

10:19 Labor in an AI-Run Economy

14:41 Who Programs the Economy’s Values?

17:01 Government, Power, and Economic Sovereignty

20:21 So, Can Humans Stay in the Loop?

22:56 The Best-Case and Worst-Case Futures

24:53 Abolish Everything

25:57 The Last Economic Decisions We Ever Make

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

What happens when AI controls prices, jobs, markets, and growth itself? Explore the future of an economy run by machines—and what it means for work, power, and humanity.

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

Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction

Check out Abolish Everything https://nebula.tv/abolish?ref=isaacarthur

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

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

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Credits: What Happens When AI Runs the Entire Economy?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro - The Invisible Hand Becomes a Neural Network

2:58 What Does “Running the Economy” Actually Mean?

5:30 What Does “Running the Economy” Actually Mean?

10:19 Labor in an AI-Run Economy

14:41 Who Programs the Economy’s Values?

17:01 Government, Power, and Economic Sovereignty

20:21 So, Can Humans Stay in the Loop?

22:56 The Best-Case and Worst-Case Futures

24:53 Abolish Everything

25:57 The Last Economic Decisions We Ever Make

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

What if alien life isn’t carbon at all? Imagine crystal organisms growing across deserts, powered by lightning and forming vast mineral ecosystems. Could boron-based life exist somewhere in the universe—and even evolve intelligence?

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

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Credits:

Boron-Based Life – Aliens of the Crystal Deserts

Written, Produced & Narrated by: Isaac Arthur

Editor: Lukas Konecny

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.

What if alien life isn’t carbon at all? Imagine crystal organisms growing across deserts, powered by lightning and forming vast mineral ecosystems. Could boron-based life exist somewhere in the universe—and even evolve intelligence?

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

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

Credits:

Boron-Based Life – Aliens of the Crystal Deserts

Written, Produced & Narrated by: Isaac Arthur

Editor: Lukas Konecny

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.