From nuclear nightmares to reality-breaking weapons, we examine how science and fiction imagine the end of everything. What happens when weapons don’t just destroy worlds but unmake reality itself? Explore the science of apocalypse. Checkout Scav: https://go.nebula.tv/scav?ref=isaacarthur Watch my exclusive video The Fermi Paradox - Civilization Ex…

From nuclear nightmares to reality-breaking weapons, we examine how science and fiction imagine the end of everything. What happens when weapons don’t just destroy worlds but unmake reality itself? Explore the science of apocalypse. Checkout Scav: https://go.nebula.tv/scav?ref=isaacarthur Watch my exclusive video The Fermi Paradox - Civilization Ex…

From lunar regolith to metal-rich asteroids, this episode examines how off-world resources could spark the largest economic boom in human history — and what the fuel, transport, and political math actually looks like. Checkout Rifftrax https://go.nebula.tv/scav?ref=isaacarthur Watch my exclusive video The Fermi Paradox - Civilization Extinction Cyc…

From lunar regolith to metal-rich asteroids, this episode examines how off-world resources could spark the largest economic boom in human history — and what the fuel, transport, and political math actually looks like. Checkout Rifftrax https://go.nebula.tv/scav?ref=isaacarthur Watch my exclusive video The Fermi Paradox - Civilization Extinction Cyc…

Forget little green men — the galaxy’s most likely aliens may be hives and swarms. From biology to starships, insectoid life could shape civilizations stranger than ours. Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! Grab one of our new SFIA mugs and make your morning coffee a littl…

Forget little green men — the galaxy’s most likely aliens may be hives and swarms. From biology to starships, insectoid life could shape civilizations stranger than ours. Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! Grab one of our new SFIA mugs and make your morning coffee a littl…

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? Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get Neb…

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? Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get Neb…

Meet the caretaker AIs: guardians of planets, habitats, and civilizations. What happens when machines become the spirit and soul of the worlds they protect? Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get Nebula using my link for 4…

Meet the caretaker AIs: guardians of planets, habitats, and civilizations. What happens when machines become the spirit and soul of the worlds they protect? Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get Nebula using my link for 4…

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 - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extincti…

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 - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extincti…

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 Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get …

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 Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get …

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: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get Nebula using my link for 40% off an annual sub…

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: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles Get Nebula using my link for 40% off an annual sub…

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 Fourthwall store! https://isaac-arthur-shop.fourthwall.com/ Any comments, corrections, or thoughts on the v…

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 Fourthwall store! https://isaac-arthur-shop.fourthwall.com/ Any comments, corrections, or thoughts on the v…

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. Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join …

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. Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join …

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 g…

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 g…

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. Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civil…

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. Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civil…

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. Watch my exclusive video The Fermi Paradox - Civilization Extinc…

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. Watch my exclusive video The Fermi Paradox - Civilization Extinc…