Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology Check out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth...
Apr 19, 2026•42 min•Ep. 843
Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technology Check out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth...
Apr 19, 2026•42 min•Ep. 843
The most expensive part of space travel isn’t the fuel—it’s the cargo. Additive manufacturing isn’t a sci-fi magic trick; it’s the key to building shipyards and telescopes at scales rockets were never meant to handle. We aren't just launching ships anymore; we're moving the factory to the void. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-...
Apr 16, 2026•24 min•Ep. 842
The most expensive part of space travel isn’t the fuel—it’s the cargo. Additive manufacturing isn’t a sci-fi magic trick; it’s the key to building shipyards and telescopes at scales rockets were never meant to handle. We aren't just launching ships anymore; we're moving the factory to the void. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-...
Apr 16, 2026•25 min•Ep. 842
Why does the galaxy seem silent? Maybe aliens aren’t rare—maybe humans are. We explore the strange mix of traits that turned one clever primate into a technological civilization, and whether our oddities might be the real Great Filter. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-hal...
Apr 12, 2026•38 min•Ep. 841
Why does the galaxy seem silent? Maybe aliens aren’t rare—maybe humans are. We explore the strange mix of traits that turned one clever primate into a technological civilization, and whether our oddities might be the real Great Filter. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-hal...
Apr 12, 2026•39 min•Ep. 841
Cosmic strings may be ultra-thin defects in spacetime—relic “cracks” from the early universe. How we’d detect them, what they mean for physics, and how aliens might exploit them. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world 🛒 SFIA Merchandise: https://isaac-arthur-shop.fo...
Apr 09, 2026•25 min•Ep. 839
Cosmic strings may be ultra-thin defects in spacetime—relic “cracks” from the early universe. How we’d detect them, what they mean for physics, and how aliens might exploit them. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world 🛒 SFIA Merchandise: https://isaac-arthur-shop.fo...
Apr 09, 2026•25 min•Ep. 839
Interstellar city-states may dominate future space travel, governing the laser highways that connect stars and shape galactic civilization. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world Check out Practical Engineering: https://nebula.tv/videos/realengineering-the-anatomy-of...
Apr 04, 2026•30 min•Ep. 838
Interstellar city-states may dominate future space travel, governing the laser highways that connect stars and shape galactic civilization. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habitats-of-a-halo-world Check out Practical Engineering: https://nebula.tv/videos/realengineering-the-anatomy-of...
Apr 04, 2026•30 min•Ep. 838
Humanity may not colonize planets—we may build our own worlds. Explore how rotating space habitats could spread across the Solar System and beyond, forming a vast diaspora of artificial worlds that reshape civilization and interstellar expansion. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habita...
Apr 02, 2026•26 min•Ep. 837
Humanity may not colonize planets—we may build our own worlds. Explore how rotating space habitats could spread across the Solar System and beyond, forming a vast diaspora of artificial worlds that reshape civilization and interstellar expansion. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Settling Saturn's Rings: https://nebula.tv/videos/isaacarthur-settling-saturns-rings-exploring-the-origins-resources-and-future-habita...
Apr 02, 2026•26 min•Ep. 837
Is science nearing its limits? We explore whether humanity could ever run out of discoveries—or if the universe guarantees endless questions, deeper mysteries, and new frontiers forever. 🌏 Get Exclusive NordVPN deal + 4 months extra here → https://nordvpn.com/isaacarthur It’s risk-free with Nord’s 30-day money-back guarantee! ✌️ 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: https://www.patreon.com/IsaacA...
Mar 31, 2026•34 min•Ep. 835
Is science nearing its limits? We explore whether humanity could ever run out of discoveries—or if the universe guarantees endless questions, deeper mysteries, and new frontiers forever. 🌏 Get Exclusive NordVPN deal + 4 months extra here → https://nordvpn.com/isaacarthur It’s risk-free with Nord’s 30-day money-back guarantee! ✌️ 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: https://www.patreon.com/IsaacA...
Mar 31, 2026•34 min•Ep. 835
Civilizations at the end of time—how intelligence could survive heat death, cosmic isolation, entropy, and the universe’s longest future eras. Take back your personal data with Incogni! Use code isaacarthur at the link below and get 60% off annual plans: https://incogni.com/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 ⭐ Support us on Subscribestar: https://...
Mar 28, 2026•3 hr 43 min•Ep. 834
Civilizations at the end of time—how intelligence could survive heat death, cosmic isolation, entropy, and the universe’s longest future eras. Take back your personal data with Incogni! Use code isaacarthur at the link below and get 60% off annual plans: https://incogni.com/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 ⭐ Support us on Subscribestar: https://...
Mar 28, 2026•3 hr 41 min•Ep. 834
Biohacks and brain implants are coming fast. From memory upgrades to neural meshes, how will implant culture reshape identity, economics, and civilization itself? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Tech Alter: https://nebula.tv/techaltar?ref=isaacarthur and Day Pass: https://nebula.tv/daypas...
Mar 26, 2026•29 min•Ep. 833
Biohacks and brain implants are coming fast. From memory upgrades to neural meshes, how will implant culture reshape identity, economics, and civilization itself? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Tech Alter: https://nebula.tv/techaltar?ref=isaacarthur and Day Pass: https://nebula.tv/daypas...
Mar 26, 2026•28 min•Ep. 833
What if we built entire planets around tiny black holes? Explore engineered micro worlds, artificial gravity, and the future of compact megastructures. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Practical Engineering: https://nebula.tv/practical-engineering?ref=isaacarthur 🛒 SFIA Merchandise: https...
Mar 22, 2026•25 min•Ep. 832
What if we built entire planets around tiny black holes? Explore engineered micro worlds, artificial gravity, and the future of compact megastructures. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Practical Engineering: https://nebula.tv/practical-engineering?ref=isaacarthur 🛒 SFIA Merchandise: https...
Mar 22, 2026•25 min•Ep. 832
Colonizing brown dwarfs: habitats, megastructures, and hidden homes around failed stars. Could these dim embers power civilizations for trillions of years? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out 17 Pages: https://nebula.tv/17pages?ref=isaacarthur and A Bit Obscure https://nebula.tv/abitfrank/a-b...
Mar 19, 2026•30 min•Ep. 831
Colonizing brown dwarfs: habitats, megastructures, and hidden homes around failed stars. Could these dim embers power civilizations for trillions of years? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out 17 Pages: https://nebula.tv/17pages?ref=isaacarthur and A Bit Obscure https://nebula.tv/abitfrank/a-b...
Mar 19, 2026•31 min•Ep. 831
From Goddard’s first rocket to space elevators and mass drivers, we explore 100 years of rocketry—and the launch technologies that could carry humanity beyond rockets. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Day Pass: https://nebula.tv/daypass?ref=isaacarthur 🚀 Join this channel to get access to...
Mar 15, 2026•26 min•Ep. 830
From Goddard’s first rocket to space elevators and mass drivers, we explore 100 years of rocketry—and the launch technologies that could carry humanity beyond rockets. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Day Pass: https://nebula.tv/daypass?ref=isaacarthur 🚀 Join this channel to get access to...
Mar 15, 2026•25 min•Ep. 830
What happens when AI controls prices, jobs, markets, and growth itself? Explore the future of an economy run by machines—and what it means for work, power, and humanity. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Abolish Everything https://nebula.tv/abolish?ref=isaacarthur 🛒 SFIA Merchandise: https...
Mar 12, 2026•28 min•Ep. 829
What happens when AI controls prices, jobs, markets, and growth itself? Explore the future of an economy run by machines—and what it means for work, power, and humanity. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Abolish Everything https://nebula.tv/abolish?ref=isaacarthur 🛒 SFIA Merchandise: https...
Mar 12, 2026•29 min•Ep. 829
What if alien life isn’t carbon at all? Imagine crystal organisms growing across deserts, powered by lightning and forming vast mineral ecosystems. Could boron-based life exist somewhere in the universe—and even evolve intelligence? 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur 👥 Facebook Group: ...
Mar 10, 2026•32 min•Ep. 828
What if alien life isn’t carbon at all? Imagine crystal organisms growing across deserts, powered by lightning and forming vast mineral ecosystems. Could boron-based life exist somewhere in the universe—and even evolve intelligence? 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur 👥 Facebook Group: ...
Mar 10, 2026•32 min•Ep. 828
In a post-scarcity civilization where material needs are met, black markets don’t vanish—they evolve. Explore why scarcity shifts to identity, risk, privacy, and desire. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Abolish Everything https://nebula.tv/abolish?ref=isaacarthur 🛒 SFIA Merchandise: https...
Mar 08, 2026•27 min•Ep. 827
In a post-scarcity civilization where material needs are met, black markets don’t vanish—they evolve. Explore why scarcity shifts to identity, risk, privacy, and desire. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinction Check out Abolish Everything https://nebula.tv/abolish?ref=isaacarthur 🛒 SFIA Merchandise: https...
Mar 08, 2026•27 min•Ep. 827
