Podcast
Science & Futurism with Isaac Arthur
Hosted by Unknown Author · EN
Science & Futurism with Isaac Arthur explores humanity’s long-term future through space exploration, advanced technology, and big-picture science. Hosted by National Space Society President Isaac Arthur, each episode uses real science and careful speculation to examine space colonization, megastructures, artificial intelligence, post-scarcity economies, and the physics shaping civilization beyond Earth.
22episodes
Episodes
Newest firstAll episodes
SETI Explained - How We Search for Alien Civilizations
4d agoTap to summarizeExplore SETI’s history and modern methods—from radio and laser searches to Dyson spheres and technosignatures—and how we might detect alien civilizations across the galaxy.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-ageCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:SETI Explained - How We Search for Alien CivilizationsWritten, Produced & Narrated by: Isaac ArthurGraphics from Ken York, Sergio BoteroSelect imagery/video supplied by Getty ImagesChapters0:00 Intro0:50 Why SETI Is Harder Than It Sounds2:50 The Birth of SETI6:15 Why Radio SETI Made Sense—and Why It Didn’t Work9:34 The Shift in Perspective10:55 Laser SETI13:52 Dysonian SETI16:59 Signals, Artifacts, and Echoes19:09 Recognition Is Harder Than Detection21:30 Gods & Monsters22:30 What SETI Looks Like Today25:18 SETI as a Mirror, Not a Phone CallSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Nomadic Aliens – Cultures That Wander the Galaxy
1w agoTap to summarizeWhat if the oldest aliens in the galaxy are not empires, but nomads? We explore wandering fleets, deep-time survival, and civilizations without a homeworld.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-ageCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Nomadic Aliens – Cultures That Wander the GalaxyWritten, Produced & Narrated by: Isaac ArthurMusic Courtesy of Chris Zabriskie & StellardroneSelect imagery/video supplied by Getty ImagesChapters0:00 Intro2:44 The Ship Is the World10:49 The Nomadic Group Is Not the Species19:15 Accretion, Not Assimilation25:53 When Nomads Stop, and When They Refuse To28:32 Gods & Monsters29:32 The Oldest Civilizations May Be the Ones Still Moving See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →The Tokamak Problem: Can We Ever Make Fusion Practical?
1w agoTap to summarizeCan nuclear fusion ever be practical? We explore tokamaks, plasma confinement, energy balance, and the real engineering challenges behind building a working fusion reactor—and whether fusion power will ever scale.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-ageCheck out Tech Altar: https://nebula.tv/techaltar?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits: The Tokamak Problem: Can We Ever Make Fusion Practical?Written, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?
2w agoTap to summarizeWhen disaster leaves only a handful, can a civilization restart? We explore genetic bottlenecks, colony failure, and the limits of survival.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-ageCheck out Practical Engineering: https://nebula.tv/practicalconstruction?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?Written, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesChapters0:00 Intro10:56 Restoration19:26 Practical EngineeringSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Fleet of the Void - Designing Warships for Deep Space
2w agoTap to summarizeHow would real space war actually work? From stealth myths to fuel limits, explore the brutal physics shaping starships, tactics, and survival in deep space combat.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch 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-worldCheck out The Anatomy of the Nokia 3310: https://nebula.tv/videos/realengineering-the-anatomy-of-the-nokia-3310/?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Fleet of the Void - Designing Warships for Deep SpaceWritten, Produced & Narrated by: Isaac ArthurEditor: Keith OxenriderGraphics: Darth Biomech, Fishy Tree, Jeremy Jozwik, Legiontech, Udo SchroeterMusic by Epidemic Sound: http://nebula.tv/epidemic Chris Zabriskie & StellardroneSelect imagery/video supplied by Getty ImagesChapters0:00 Intro1:53 The Strategic Context – Fighting in the Infinite4:40 Unpredictable Motion and Limited Fuel Workarounds6:37 Why Not Use Robot Pilots and Just Dodge Forever?8:00 The Tethered Fleet: A fuel saving trick10:13 No Stealth in Space16:34 Warship Design: Built for the Void, Not for Hollywood21:31 Command and Crew: Flesh, Steel, and Silence25:43 Real Engineering26:43 Life Support28:06 Tactics in the Deep31:42 Philosophy of the VoidSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Post-Consciousness Civilizations: Evolving Beyond Human Awareness
3w agoTap to summarizeWhat if civilizations outgrow consciousness itself? Explore post-human minds, machine societies, and a future where awareness may no longer be required.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch 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-worldCheck out Vintage Space: https://nebula.tv/videos/thevintagespace-apollo-8s-christmas-miracle?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Post-Consciousness Civilizations: Evolving Beyond Human AwarenessWritten, Produced & Narrated by: Isaac Arthur Edited by: Lukas KonecnySelect imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creatorSergey Cheremisinov, "Labyrinth"Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector", "Oxygen Garden"Stellardrone, "Red Giant", "Billions and Billions"See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Magnetic Monopoles & Magmatter - The Strongest Material That Might Exist
3w agoTap to summarizeMagnetic monopoles are hypothetical particles with a single magnetic charge — north without south. Predicted by grand unified theories, they may be incredibly massive and could bind together into “magmatter,” an ultra-dense material stronger than anything known in nature.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch 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-worldCheck out the Nokia 3310 CT Scan: https://nebula.tv/videos/realengineering-the-anatomy-of-the-nokia-3310?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Magnetic Monopoles & Magmatter - The Strongest Material That Might ExistWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesChapters0:00 Intro4:52 What Magnetic Monopoles Would Do10:30 Magmatter: Matter Without Atoms18:48 Nokia 331019:55 What You Could Build — and What It Would CostSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →1 Million A.D.
4w agoTap to summarizeCould 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/isaacarthurWatch my exclusive video The Future of Interstellar Communication: https://nebula.tv/videos/isaacarthur-chronoengineering-manipulating-time-as-technologyCheck out Joe Scott's Oldest & Newest: https://nebula.tv/videos/joescott-oldest-and-newest-places-on-earth?ref=isaacarthur🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join🛒 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: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Wormhole Stableways – Constructing and Navigating Artificial Shortcuts Through SpaceWritten, Produced & Narrated by:Isaac ArthurSelect imagery/video supplied by Getty ImagesChapters0:00 Intro1:38 What Is a Wormhole?5:21 Could Wormholes Exist Naturally?8:49 What Keeps a Wormhole Open?12:08 Can We Build an Artificial Wormhole?16:05 How Would You Travel Through One?20:56 So Where Are We?25:14 Civilization across the Stableways30:58 Nebula32:10 Bridges to EternitySee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Additive Manufacturing in Microgravity
Apr 16Tap to summarizeThe 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/isaacarthurWatch 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-worldCheck out Practical Engineering: https://nebula.tv/videos/realengineering-the-anatomy-of-the-nokia-3310/?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Additive Manufacturing in MicrogravityWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesChapters0:00 Intro2:10 Additive Manufacturing Is Not a Printer8:04 The Physics of Printing in Freefall12:23 Low Gravity, Regolith, and the “Messy Middle”17:01 CT Scan17:59 Printing at Scales Rockets Can’t TouchSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →The Fermi Paradox: Human Uniqueness and Oddity
Apr 12Tap to summarizeWhy 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/isaacarthurWatch 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-worldCheck out Quinn's Ideas https://nebula.tv/quinnsideas?ref=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://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:The Fermi Paradox: Human Uniqueness and OddityWritten, Produced & Narrated by: Isaac ArthurMusic Courtesy of Chris Zabriskie & StellardroneSelect imagery/video supplied by Getty ImagesSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
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