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.
34episodes
Episodes
Newest firstAll episodes
Why Haven’t We Found Dyson Spheres Yet?
6d agoTap to summarizeFrom Dysonian SETI to waste heat and galactic timelines, we explore why we haven’t found Dyson Spheres—and what their absence reveals about civilization.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it🛒 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:Why Haven’t We Found Dyson Spheres Yet?Written, Produced & Narrated by: Isaac ArthurMusic Courtesy of Stellardrone & Chris Zabriskie Select imagery/video supplied by Getty Images, Jeremy Jozwik, Ken York, Sergio BoteroChapters0:00 Intro2:41 What Could We Actually See?9:11 The Timeline Problem12:24 Looking Out Is Looking Back17:42 The Dyson Dilemma26:07 Alternative Paths: Civilizations That Don’t Expand29:26 Energy, Efficiency, and the Problem of Waste Heat33:21 Nebula34:22 The Silence of the SpheresSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →The Physics of FTL Travel
1w agoTap to summarizeCan humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it🛒 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 Physics of FTL TravelWritten, Produced & Narrated by: Isaac ArthurEditor: Lukas KonecnyMusic Courtesy of Stellardrone & Chris Zabriskie Select imagery/video supplied by Getty ImagesChapters0:00 Intro0:12 Faster Than Light Is the Wrong Question4:18 Spacetime Engineering: Moving the Map Instead of the Ship5:24 Warp Drives: Surfing Spacetime11:46 Wormholes: Shortcuts with a Side of Time Travel13:20 Hyperspace: Shortcuts Through the Bulk15:11 Solitons: The Positive Energy Challenge17:35 The Krasnikov Tube: Building a Star-Road20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders25:05 Tachyons: The Simplest Way to Break Time28:04 Vacuum & Time-Advance Effects: When Causality Bends, Just a Little32:19 Quantum Red Herrings35:42 Nebula36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating PhysicsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →Space Habitats: The Megastructures We’ll Call Home
2w agoTap to summarizeExplore the future of space habitats, from rotating cylinders and torus colonies to orbital cities, asteroid homes, and the megastructures humanity may one day live inside.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it🛒 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:Space Habitats: The Megastructures We’ll Call HomeWritten, Produced & Narrated by: Isaac ArthurEditors: Briana Brownell, Ludwig LuskaSelect imagery/video supplied by Getty Images, Anthrofuturism, Apogii.uk, Bryan Versteeg, Fishy Tree, Katie Byrne, Jarred Eagley, Jeremy Jozwik, Justin Dixon, Ken York YD Visual, Neil Blevins, Sergio Botero, Steve Bowers, and Udo SchroeterMusic by Epidemic Sound: http://nebula.tv/epidemic and Markus Junnikkala, Phase Shift, Kai Engel, Chris Zabriskie, Taras Harkavyi, and StellardroneSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcribe →What If Humanity Never Masters Fusion?
2w agoTap to summarizeWhat if fusion power never becomes practical? Humanity still has solar, fission, storage, beamed power, and enough known physics to build a spacefaring future.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it🛒 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:What If Humanity Never Masters Fusion?Written, Produced & Narrated by: Isaac ArthurGraphics from: Jeremy Jozwik, Mafic StudiosChris Zabriskie, "Unfoldment, Revealment"Stellardrone, "Red Giant", "Billions and Billions"Select 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 →The Moon Base: Shackleton Crater vs Other Sites
3w agoTap to summarizeWhere should humanity build its first Moon base: Shackleton Crater, lava tubes, lunar maria, or the far side? The Moon’s future may be a network, not one base.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it🛒 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 Moon Base: Shackleton Crater vs Other SitesWritten, Produced & Narrated by: Isaac ArthurMusic Courtesy of Stellardrone & Chris Zabriskie Graphics from: Jeremy Jozwik, Sergio BoteroSelect 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 →Merging with Alien Civilizations - Our Future in a Galactic Community
3w agoTap to summarizeFirst contact is easy. Living together isn’t. How would humanity merge with alien civilizations in a shared galaxy of trade, politics, and uneasy peace?Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-itCheck 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:Merging with Alien Civilizations - Our Future in a Galactic CommunityWritten, Produced & Narrated by: Isaac ArthurEditors: Keith Oxenrider & Donagh BroderickMusic Courtesy of 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.
Transcribe →Antimatter Propulsion
4w 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
4w 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?
May 24Tap 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
May 21Tap 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 →