Could digital immortality really save you, or just create a convincing copy? We explore mind uploading, backups, identity, and whether survival means continuity… or redundancy.

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Credits:

Digital Immortality - Backing Up the Human Soul

Written, Produced & Narrated by: Isaac Arthur

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Could digital immortality really save you, or just create a convincing copy? We explore mind uploading, backups, identity, and whether survival means continuity… or redundancy.

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

Check out Joe's Scott's Oldest and Newest Places on Earth: https://nebula.tv/oldestnewest?ref=isaacarthur

Watch my exclusive video Colonizing Ocean Worlds: https://nebula.tv/videos/isaacarthur-colonizing-ocean-worlds-subaquatic-settlements

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Credits:

Digital Immortality - Backing Up the Human Soul

Written, Produced & Narrated by: Isaac Arthur

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.

Artificial intelligence may be civilization’s greatest tool… or its last. Could AI explain why the galaxy seems silent, or does it make the Fermi Paradox even harder?

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Is Artificial Intelligence the Great Filter | The Fermi Paradox

Written, Produced & Narrated by: Isaac Arthur

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

Artificial intelligence may be civilization’s greatest tool… or its last. Could AI explain why the galaxy seems silent, or does it make the Fermi Paradox even harder?

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

Watch my exclusive video Colonizing Ocean Worlds: https://nebula.tv/videos/isaacarthur-colonizing-ocean-worlds-subaquatic-settlements

Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur

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Credits:

Is Artificial Intelligence the Great Filter | The Fermi Paradox

Written, Produced & Narrated by: Isaac Arthur

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.

From cosmic rays to solar storms, space travel is a radiation gauntlet—but water may be the simplest, smartest solution. Discover how future starships might turn their life-support systems into life-saving armor.

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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

Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur

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Credits:

Fishbowl Starships Water As Shielding

Episode 721; June 1, 2025; Nebula Exclusive

Written, Produced, & Narrated by: Isaac Arthur

Graphics: Bryan Versteeg, Jeremy Jozwik, Udo Schroeter

Select imagery/video supplied by Getty Images

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

Taras Harkavyi, "Alpha and..."

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

"Oxygen Garden", "Wonder Cycle"

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.

From cosmic rays to solar storms, space travel is a radiation gauntlet—but water may be the simplest, smartest solution. Discover how future starships might turn their life-support systems into life-saving armor.

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

Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur

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Credits:

Fishbowl Starships Water As Shielding

Episode 721; June 1, 2025; Nebula Exclusive

Written, Produced, & Narrated by: Isaac Arthur

Graphics: Bryan Versteeg, Jeremy Jozwik, Udo Schroeter

Select imagery/video supplied by Getty Images

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

Taras Harkavyi, "Alpha and..."

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

"Oxygen Garden", "Wonder Cycle"

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.

Can antimatter be stored safely? Explore magnetic traps, starship fuel, and the terrifying challenge of bottling energy that destroys any container it touches.

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

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Credits:

Antimatter Containment - Bottling the Lightning

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

0:00 Intro

1:29 Bottling Lightning – Why Antimatter Is So Hard to Hold

3:57 How We Do It Today – Traps, Fields, and Tiny Amounts

10:31 Scaling the Impossible – From Lab Curiosity to Fuel Tank

15:08 Starship Fuel and Doomsday Risks

20:27 Nebula

21:42 Beyond Bottles – Rethinking How We Contain Antimatter

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

Can antimatter be stored safely? Explore magnetic traps, starship fuel, and the terrifying challenge of bottling energy that destroys any container it touches.

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

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Credits:

Antimatter Containment - Bottling the Lightning

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

0:00 Intro

1:29 Bottling Lightning – Why Antimatter Is So Hard to Hold

3:57 How We Do It Today – Traps, Fields, and Tiny Amounts

10:31 Scaling the Impossible – From Lab Curiosity to Fuel Tank

15:08 Starship Fuel and Doomsday Risks

20:27 Nebula

21:42 Beyond Bottles – Rethinking How We Contain Antimatter

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 found a true second Earth nearby? A living world, a barren paradise, or something too familiar to be natural could change science, politics, and humanity’s future forever.

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

Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur

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Credits:

What If We Found a Second Earth Nearby?

Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:26 What Counts as a “Second Earth”?

4:34 The Hidden Twin

6:24 The Real Discovery: A Nearby Earth

8:42 If It Has Life

9:17 Alien Life, But Compatible

11:15 Familiar Life - Too Familiar

13:26 Gods & Monsters

14:36 If It’s Barren - but Ready

18:00 The Rush: Who Gets a Whole World?

20:49 The Economics of a Second Earth

23:30 How Do You Divide a Planet?

26:27 The Long View: A Second Earth Changes Everything

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 found a true second Earth nearby? A living world, a barren paradise, or something too familiar to be natural could change science, politics, and humanity’s future forever.

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

Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?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

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Credits:

What If We Found a Second Earth Nearby?

Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:26 What Counts as a “Second Earth”?

4:34 The Hidden Twin

6:24 The Real Discovery: A Nearby Earth

8:42 If It Has Life

9:17 Alien Life, But Compatible

11:15 Familiar Life - Too Familiar

13:26 Gods & Monsters

14:36 If It’s Barren - but Ready

18:00 The Rush: Who Gets a Whole World?

20:49 The Economics of a Second Earth

23:30 How Do You Divide a Planet?

26:27 The Long View: A Second Earth Changes Everything

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