Science & Futurism with Isaac Arthur

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back.

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Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

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💬 SFIA Discord Server: https://discord.gg/53GAShE
Credits:
The Physics of FTL Travel
Written, Produced & Narrated by: Isaac Arthur
Editor: Lukas Konecny
Music Courtesy of Stellardrone & Chris Zabriskie
Select imagery/video supplied by Getty Images

Chapters
0:00 Intro
0:12 Faster Than Light Is the Wrong Question
4:18 Spacetime Engineering: Moving the Map Instead of the Ship
5:24 Warp Drives: Surfing Spacetime
11:46 Wormholes: Shortcuts with a Side of Time Travel
13:20 Hyperspace: Shortcuts Through the Bulk
15:11 Solitons: The Positive Energy Challenge
17:35 The Krasnikov Tube: Building a Star-Road
20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders
25:05 Tachyons: The Simplest Way to Break Time
28:04 Vacuum & Time-Advance Effects: When Causality Bends, Just a Little
32:19 Quantum Red Herrings
35:42 Nebula
36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating Physics

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

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur
Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

🛒 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 Physics of FTL Travel
Written, Produced & Narrated by: Isaac Arthur
Editor: Lukas Konecny
Music Courtesy of Stellardrone & Chris Zabriskie
Select imagery/video supplied by Getty Images

Chapters
0:00 Intro
0:12 Faster Than Light Is the Wrong Question
4:18 Spacetime Engineering: Moving the Map Instead of the Ship
5:24 Warp Drives: Surfing Spacetime
11:46 Wormholes: Shortcuts with a Side of Time Travel
13:20 Hyperspace: Shortcuts Through the Bulk
15:11 Solitons: The Positive Energy Challenge
17:35 The Krasnikov Tube: Building a Star-Road
20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders
25:05 Tachyons: The Simplest Way to Break Time
28:04 Vacuum & Time-Advance Effects: When Causality Bends, Just a Little
32:19 Quantum Red Herrings
35:42 Nebula
36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating Physics

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

Explore the future of space habitats, from rotating cylinders and torus colonies to orbital cities, asteroid homes, and the megastructures humanity may one day live inside.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur
Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

🛒 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:
Space Habitats: The Megastructures We’ll Call Home
Written, Produced & Narrated by: Isaac Arthur
Editors: Briana Brownell, Ludwig Luska
Select imagery/video supplied by Getty Images, Anthrofuturism, Apogii.uk, Bryan Versteeg, Fishy Tree, Katie Byrne, Jarred Eagley, Jeremy Jozwik, Justin Dixon, Ken York YD Visual, Neil Blevins, Sergio Botero, Steve Bowers, and Udo Schroeter
Music by Epidemic Sound: http://nebula.tv/epidemic and Markus Junnikkala, Phase Shift, Kai Engel, Chris Zabriskie, Taras Harkavyi, and Stellardrone
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Explore the future of space habitats, from rotating cylinders and torus colonies to orbital cities, asteroid homes, and the megastructures humanity may one day live inside.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur
Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

🛒 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:
Space Habitats: The Megastructures We’ll Call Home
Written, Produced & Narrated by: Isaac Arthur
Editors: Briana Brownell, Ludwig Luska
Select imagery/video supplied by Getty Images, Anthrofuturism, Apogii.uk, Bryan Versteeg, Fishy Tree, Katie Byrne, Jarred Eagley, Jeremy Jozwik, Justin Dixon, Ken York YD Visual, Neil Blevins, Sergio Botero, Steve Bowers, and Udo Schroeter
Music by Epidemic Sound: http://nebula.tv/epidemic and Markus Junnikkala, Phase Shift, Kai Engel, Chris Zabriskie, Taras Harkavyi, and Stellardrone
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

What if fusion power never becomes practical? Humanity still has solar, fission, storage, beamed power, and enough known physics to build a spacefaring future.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur
Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

🛒 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:
What If Humanity Never Masters Fusion?
Written, Produced & Narrated by: Isaac Arthur
Graphics from: Jeremy Jozwik, Mafic Studios
Chris Zabriskie, "Unfoldment, Revealment"
Stellardrone, "Red Giant", "Billions and Billions"
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.