Explore the fascinating world of string theory, where tiny vibrating strings may hold the key to unifying quantum mechanics and general relativity. Dive into the mysteries of extra dimensions and the quest for a 'theory of everything.

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Credits:
Untangling String Theory
Episode 482; January 16, 2025
Produced & Narrated by:Isaac Arthur
Written & Edited by:Isaac Arthur & Jonathan Maltz
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chris Zabriskie, "Unfoldment, Revealment"

Untangling String Theory (Narration Only)

Sci-fi thrills us with enormous space monsters and Kaiju, but could the galaxy already be home to such leviathans?

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Credits:
Giant Space Monsters
Episode 427b; January 1, 2024
Produced, Written & Narrated by: Isaac Arthur
Graphics: Jeremy Jozwik, Ken York
Music Courtesy of:
Epidemic Sound http://epidemicsound.com/creator
Select imagery/video supplied by Getty Images

Giant Space Monsters (Narration Only)

Amid the swirling vastness of galaxies, each a cosmic city of stars and planets, the silence raises a compelling question: could the very nature of galaxies themselves hold the key to why intelligent life remains unseen?

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The Fermi Paradox: Galactic Great Filters
Episode 484; January 30, 2025
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"
Stellardrone, "Billions and Billions"

The Fermi Paradox: Galactic Great Filters

When exile—not exploration—becomes the driving force behind space colonization, what kind of civilizations will emerge? In this episode, we explore the forces that might send humanity’s unwanted, rebellious, or idealistic factions into the void, and what fate awaits them among the stars.

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Credits:
Exiled Space Colonies
Episode 490a; March 16, 2025
Written, Produced & Narrated by: Isaac Arthur
Edited by: Evan Schultheis, Ludwig Luska
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Sergey Cheremisinov, "Labyrinth"
Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector", "Oxygen Garden"
Stellardrone, "Red Giant", "Billions and Billions"

Exiled Space Colonies

Discover the groundbreaking physics behind skyhooks, rotovators, and space ladders, and how they could revolutionize space travel in the near future.

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Skyhooks, Rotovators & Space Ladders
Episode 488b; March 2, 2025
Written, Produced & Narrated by: Isaac Arthur
Graphics: Jarred Eagley, Katie Byrne, Phil Swan, Sergio Botero
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", "Wonder Cycle"
Stellardrone, "Red Giant", "Billions and Billions"

Skyhooks, Rotovators & Space Ladders: Lifting Humanity To The Stars Without Rockets

If civilizations can endure for eons and people can live indefinitely, what drives progress, ambition, and purpose in a world where time has no limit? Would an ageless society be a utopia of infinite wisdom, or a stagnating empire struggling to keep ambition alive across the centuries?

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Credits:
Methuselah Civilizations: A Society of the Ageless 
Episode 489; March 6, 2025
Written, Produced & Narrated by: Isaac Arthur
Edited by: Ludwig Luska
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector", "Oxygen Garden", "Wonder Cycle"
Stellardrone, "Red Giant", "Billions and Billions"

Methuselah Civilizations (Narration Only)

How do we create artificial gravity in space without massive space stations? Today, we explore hammer habitats and tethered space habitats—ingenious designs that could revolutionize life beyond Earth.
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Hammer Habs &  Tethered Space Habitats
Episode 490; March 13, 2025
Written, Produced & Narrated by: Isaac Arthur
Edited by: Merv Johnson II
Graphics: Bryan Versteeg, Fishy Tree, Jeremy Jozwik, Ken York YD Visual
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector", "Oxygen Garden", "Wonder Cycle"

Hammer Habs & Tethered Space Habitats

Hammer Habs & Tethered Space Habitats (Narration Only)

Are rogue machines lurking in the cosmos, quietly outlasting their creators? We explore the eerie possibility that ancient AI remnants, abandoned or self-replicating, could be hidden throughout the galaxy—watching, waiting, and perhaps even shaping the fate of civilizations.

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Credits:
The Fermi Paradox  & Zombie AI: Are Rogue Machines Hiding in the Cosmos? 
Episode 494; April 10, 2025
Written, Produced & Narrated by: Isaac Arthur 
Editors: Briana Brownell & Donagh Broderick
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"

The Fermi Paradox  & Zombie AI: Are Rogue Machines Hiding in the Cosmos? (Narration Only)

What happens when intelligence escapes the bounds of flesh and bone? In this episode, we explore post-biological civilizations—entities that may trade biology for digital minds, machine bodies, or stranger forms still—and ask what becomes of identity, purpose, and humanity when the body is no longer required.

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Credits:
Cities of the Future 
Episode 498; May 8, 2025
Written, Produced & Narrated by: Isaac Arthur
 Edited by: Ludwig Luska
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chris Zabriskie, "Unfoldment, Revealment"
Phase Shift, "Forest Night"
Lewis Gill, "The Phobos Diary"
Stellardrone, "Red Giant"

Post-Biological Civilizations: Life Beyond Flesh and Bone (Narration Only)

In tomorrow’s world, cities may rise into the clouds, dive beneath oceans, or float among the stars—join us as we journey through these radical urban frontiers.

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Credits:
Cities of the Future 
Episode 498; May 8, 2025
Written, Produced & Narrated by: Isaac Arthur
 Edited by: Briana Brownell & Thomas Owens
Graphics: Bryan Versteeg, Ervin Oprea, Ken York YD Visual, Sergio Botero
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector", "Wonder Cycle"
Taras Harkavyi, "Alpha and..."
Stellardrone, "Red Giant", "Billions and Billions"

Untangling String Theory (Narration Only)

Isaac Arthur

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