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.
28episodes
Episodes
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Antimatter Propulsion
5d agoTap to summarizeAntimatter propulsion could be the fastest engine ever built. We explore how antimatter rockets work, their extreme energy density, and whether they could power humanity’s first true interstellar spacecraft.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-age🛒 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:Antimatter Propulsion - Extended EditionWritten, Produced & Narrated by: Isaac ArthurEdited by: Thomas Owens & Merv Johnson IIGraphics: Jeremy Jozwik, Ken York YD Visual, Sergio BoteroSelect imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creatorMarkus Junnikkala, "A Fleet Behind the Moon"Phase Shift, "Forest Night"Kai Engel, "Endless Story About Sun and Moon"Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector"Taras Harkavyi, "Alpha and..."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 →The Von Braun Wheel - Building Humanity’s First Rotating Space Station
1w agoTap to summarizeBefore NASA, we had a plan for a rotating space station. The Von Braun Wheel could be humanity’s first step toward artificial gravity, orbital habitats, and permanent life beyond Earth.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-age🛒 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 Von Braun WheelWritten, Produced & Narrated by: Isaac ArthurGraphics from Bryan Versteeg, Jeremy Jozwik, Sergio Botero, Udo SchroeterMusic by Stellardrone & Chris ZabriskieSelect imagery/video supplied by Getty ImagesChapters0:00 Intro2:07 What the Von Braun Wheel Actually Was3:35 Why Spin At All?5:28 The Road Not Taken9:15 A Log Cabin in Orbit10:13 Could We Build It Today?13:08 The Missing Link to Mars15:06 Operational Advantages Beyond Health18:12 The Evolutionary Step Between Laboratory and Settlement19:33 From Wheel to Network20:45 Interplanetary Craft23:31 Surviving a New Ice Age24:39 Asteroid Mining and Industrial Outposts27:23 The Infrastructure MultiplierSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →The Zoo Hypothesis and the Fermi Paradox: Are We Being Watched?
2w agoTap to summarizeAre aliens watching us? The Zoo Hypothesis suggests advanced civilizations may be hiding, enforcing a galactic quarantine, or masking reality itself. Explore the Fermi Paradox, Dyson dilemma, and the unsettling possibility we are not alone—but observed.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:The Zoo Hypothesis and the Fermi Paradox: Are We Being Watched?Written, Produced & Narrated by: Isaac ArthurMusic Courtesy of Chris Zabriskie & StellardroneSelect imagery/video supplied by Getty ImagesChapters0:00 Intro - Silence as Deliberate Choice2:15 The Zoo Hypothesis and Time Asymmetry4:30 The Dyson Dilemma (Reframed)5:54 Heavy Stealth and the Expansion of the Zoo8:33 Who Are the Zookeepers?12:23 Why Build a Zoo?16:37 Enforcement: How the Zoo Is Maintained20:39 Heavy Stealth: Hiding by Overwhelming Force24:54 Cracks in the Glass: Can the Zoo Be Detected?29:12 Gods & Monsters30:08 Leakage: Accidents, Dissidents, and the Cost of Perfection33:22 Graduation or Exposure: How the Zoo Ends37:27 What It Means If We’re Being Watched — Or Never Were39:15 The Bars Are Made of TimeSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Don’t Panic - A Guide to Artificial Intelligence
2w agoTap to summarizeArtificial intelligence is changing the world, but not quite the way headlines suggest. Here’s a calmer look at AI’s risks, limits, and real potential.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 Abolish Everything: https://nebula.tv/abolish?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:Don’t Panic - A Guide to Artificial IntelligenceWritten, Produced & Narrated by: Isaac ArthurEditors: Donagh Broderick & Merv Johnson IIMusic by Epidemic Sound: http://nebula.tv/epidemicStellardrone & Chris Zabriskie Select imagery/video supplied by Getty ImagesChapters0:00 Intro7:22 What We Actually Mean by “AI”12:50 How AI Actually Works - Inside the Black Box23:17 Why Everyone Is Panicking?36:52 AI as Invisible Infrastructure39:33 The Economic Shock47:15 Abolish Everything 48:16The Real Limits of AISee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →The First Interplanetary War: Tactics in the Solar System
3w agoTap to summarizeIn space, everything is a weapon. From orbits to infrastructure, here’s how the first real war between worlds might actually be fought.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 Real Engineering: https://nebula.tv/realengineering?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 First Interplanetary War: Tactics in the Solar SystemWritten, Produced & Narrated by: Isaac ArthurEditor: Keith OxenriderGraphics from: Jeremy Jozwik, Legiontech StudiosSelect 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 →Fleet Unity: The Eridani Expedition - Interstellar Beachhead
3w agoTap to summarizeBefore Fleet Unity can colonize Eridani, someone must arrive first, build the brakes, and turn frozen moons into the machinery of interstellar arrival.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 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:Fleet Unity: The Eridani Expedition - Interstellar BeachheadProduced & Narrated by Isaac ArthurWritten by Isaac Arthur & Matt KosubGraphics from Jeremy Jozwik, LEgionTech, Sergio BoteroMusic Courtesy of Chris Zabriskie & StellardroneSelect imagery/video supplied by Getty Images0:00 Intro4:23 Authority at the End of a Light-Year10:58 The Beachhead21:49 Lachesis & Atropos29:30 Dune30:40 ArrivalSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →SETI Explained - How We Search for Alien Civilizations
3w 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
4w 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?
4w 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?
May 3Tap 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.
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