What if the end of everything came not from cosmic fate, but from us? This episode examines the physics, probability, and peril of experiments that could, in theory, unravel the universe.

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Could We Accidentally Destroy the Universe?
Written, Produced & Narrated by: Isaac Arthur
Editors: Lukas Konecny
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chapters
0:00 Intro
2:38 Vacuum Decay (False Vacuum Collapse)
9:59 Strange Matter Conversion
13:09 Gray Goo Scenario (Nanotechnology Out of Control)
16:05 Runaway Energy Reaction
19:06 Altering the Constants of Nature
20:49 Brane Collision (M-Theory Catastrophe)
22:27 Time Travel or Causality Paradox
23:55 Nebula
25:20 Simulation Shutdown
27:21 Big Rip or Cosmological Instability
28:35 Baby Universe Creation or Collapse
29:51 Why It Hasn’t Happened Yet (Anthropic Principle & More)
31:49 Channel Updates

Could We Accidentally Destroy the Universe? (Narration Only)

You’ve made it to a new world—but how do you make a living when Earth is light-years away? We chart how colonies bootstrap markets, money, and meaning—from scrip and rationing to trade networks and post-scarcity systems.

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Colonial Economies - How Do You Make Money on a New Planet?
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Colonial Economies - How Do You Make Money on a New Planet? (Narration Only)

Feudalism once ruled Earth—could it rule the cosmos too? We dive into the strange but plausible world of space nobles, orbital dukes, and knights of the vacuum clad in power armor or piloting mecha.

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Credits:
Feudal Futures - Knights & Nobles in the Space Age
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Feudal Futures - Knights & Nobles in the Space Age (Narration Only)

The discovery of 2017 OF201 reminds us that even small worlds can hold vast potential — not just as frozen orbs, but as stepping stones for interstellar civilization.

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Credits:
New Dwarf Planet Discovered: A Minor Planet With a Major Future?
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 

Chapters
0:00 Intro
1:11 What Counts as a Dwarf Planet?
3:47 The New Arrival: 2017 OF201
4:47 From Iceball to Megastructure
6:03 Waypoint to the Stars
8:38 Lessons from Pluto and the Dwarf Planet Census
9:43 Engineering Challenges & Opportunities
10:50 Extrapolating the Frontier

New Dwarf Planet Discovered: A Minor Planet With a Major Future? (Narration Only)

Could life thrive in seas of methane instead of water? We explore Titan-like worlds and the alien ecosystems they might harbor.

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Life in Methane Oceans: Could Aliens Evolve on Titan-like Worlds?
Written, Produced & Narrated by: Isaac Arthur
Editors: Thomas Owens & Lukas Konecny
Select imagery/video supplied by Getty Images 
Music Courtesy of Stellardrone and Epidemic Sound http://epidemicsound.com/creator

Life in Methane Oceans: Could Aliens Evolve on Titan-like Worlds? (Narration Only)

Gravity has always shackled industry, but orbit frees us to build in ways Earth never allowed. This episode explores the rise of orbital foundries and the industries they unlock.

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Credits:
Orbital Foundries & Zero-G Manufacturing: Building in Space
Written, Produced & Narrated by: Isaac Arthur
Graphics: Jeremy Jozwik, Ken York, Udo Schroeter
Select imagery/video supplied by Getty Images 
Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

Orbital Foundries & Zero-G Manufacturing - Building in Space

Mars may be humanity’s next great home—but it’s not the finish line. From floating cities above Venus to mining Mercury and the Asteroid Belt, to building bases on the Jovian moons and Titan, we explore which destinations might follow Mars and how each could shape our future in space.

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Chapters
0:00 Intro
2:02 Why the Moon Should Come First
3:47 Candidate #1: Near-Earth Asteroids (NEAs)
7:52 Candidate #2: Venus
11:35 Candidate #3: Mercury
15:16 Candidate #4: Lagrange Points & Earth-Orbit Infrastructure
17:51 Candidate #5: Jovian Moons
20:26 Nebula
22:06 Candidate #6: Titan (Saturn’s Moon)
23:46 Candidate #7: The Asteroid Belt
25:44 Candidate #8: Comet Mining & Outer System Expansion
27:56 Cross-Support: Who Helps Whom?

After Mars - 8 Candidates For Where Humanity Should Go Next (Narration Only)

After Mars - 8 Candidates For Where Humanity Should Go Next

Solar storms are inevitable; disaster isn’t. We explore the physics of flares and CMEs, historical extremes, and realistic defenses—detection, delay, and planetary-scale shielding—to weather the Sun’s worst days.

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Credits:
Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star
Written, Produced & Narrated by: Isaac Arthur
Graphics:  Mafic Studios, Sergio Botero
Select imagery/video supplied by Getty Images 
Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star

Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star (Narration Only)

Could the origins of life on Earth trace back to a natural nuclear reactor? Long before humanity split the atom, nature itself may have done it first. In this episode, we explore the astonishing possibility that self-sustaining fission reactions—like the Oklo natural reactor in Gabon—once powered the chemical engines of creation. From radioactive geysers and mineral-rich pools to the first self-replicating molecules, we’ll examine how nuclear energy might have provided the spark that turned chemistry into biology. Along the way, we’ll connect this mystery to the Fermi Paradox, asking whether such rare, radioactive beginnings might explain why intelligent life seems so scarce in the universe. Join us for a journey that blends cosmic mystery, geochemistry, and the science of life’s origins.


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Credits:
The Fermi Paradox - Did a Natural Nuclear Reactor Spark All Life?
Written by Isaac Arthur & Philip Kramer, PhD
Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Chapters
0:00 Intro
3:39 The Fermi Paradox and the Great Filter
6:41 The Rare Earth Hypothesis & LUCA
11:42 Natural Nuclear Reactors – Earth’s First Fission Furnace
16:00 The Nuclear Geyser Hypothesis
21:27 Nebula
23:02 Implications for Alien Life
29:39 Fictional Exploration
