Magnetic Monopoles & Magmatter – The Strongest Material That Might Exist
Latest Videos
The Fermi Paradox – Forbidden Zones
From supernova graveyards and magnetar death fields to alien quarantines and simulation boundaries, we map out the “haunted houses” of the Milky Way and ask: are we living in one? Checkout Rifftrax https://go.nebula.tv/rifftrax?ref=isaacarthur...
How Long Could You Survive in Space Without a Suit?
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Caretaker AI & Genus Loci
Meet the caretaker AIs: guardians of planets, habitats, and civilizations. What happens when machines become the spirit and soul of the worlds they protect? Checkout Rifftrax https://go.nebula.tv/rifftrax?ref=isaacarthur Watch my exclusive video...
Twilight Imperium: When Galactic Civilizations Ebb
From Asimov’s Foundation to Warhammer 40K and Twilight Imperium, science fiction is filled with collapsing empires. But could civilizational decline really explain why the Universe seems so empty? Watch my exclusive video The Fermi Paradox -...
Is There a Center of the Universe?
Every galaxy thinks it’s the center of the cosmos—but in our expanding Universe, everywhere is the middle... or is it? We explore relativity, cosmic geometry, and what “center” really means. Join this channel to get access to perks:...
Abandoned Space Colonies – How Worlds Can Unterraform Themselves
Colonies won’t always last forever—sometimes planets revert, habitats decay, and entire worlds are left in ruins. Join us as we examine the life cycle of abandoned space settlements. Watch my exclusive video The Fermi Paradox - Civilization...
AI Alignment – Can We Make AI Safe?
From safety protocols to philosophy, AI alignment asks a hard question: can we build artificial intelligence that truly serves humanity? Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles:...
Why Data Centers in Space Could Launch a New Space Economy
The future of computing might be off-world. Learn how orbital data centers could power AI, solar energy, and a thriving space industry. Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our...
The Dyson Sphere Economy – Mega Structures, Mega Markets, and Mega-Wealth
Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! A Dyson Swarm isn’t just power—it’s prosperity. See how humanity could turn a star’s energy into a solar-scale economy of trillions....