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Science & Futurism with Isaac Arthur

Isaac Arthur
Science & Futurism with Isaac Arthur
Latest episode

1186 episodes

  • Science & Futurism with Isaac Arthur

    Nomadic Aliens – Cultures That Wander the Galaxy

    2026/05/09 | 34 mins.
    What 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/isaacarthur
    Watch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-age
    Check 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/53GAShE
    Credits:
    Nomadic Aliens – Cultures That Wander the Galaxy
    Written, Produced & Narrated by: Isaac Arthur
    Music Courtesy of Chris Zabriskie & Stellardrone
    Select imagery/video supplied by Getty Images

    Chapters
    0:00 Intro
    2:44 The Ship Is the World
    10:49 The Nomadic Group Is Not the Species
    19:15 Accretion, Not Assimilation
    25:53 When Nomads Stop, and When They Refuse To
    28:32 Gods & Monsters
    29:32 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.
  • Science & Futurism with Isaac Arthur

    Nomadic Aliens – Cultures That Wander the Galaxy (Narration Only)

    2026/05/09 | 34 mins.
    What 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/isaacarthur
    Watch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-age
    Check 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/53GAShE
    Credits:
    Nomadic Aliens – Cultures That Wander the Galaxy
    Written, Produced & Narrated by: Isaac Arthur
    Music Courtesy of Chris Zabriskie & Stellardrone
    Select imagery/video supplied by Getty Images

    Chapters
    0:00 Intro
    2:44 The Ship Is the World
    10:49 The Nomadic Group Is Not the Species
    19:15 Accretion, Not Assimilation
    25:53 When Nomads Stop, and When They Refuse To
    28:32 Gods & Monsters
    29:32 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.
  • Science & Futurism with Isaac Arthur

    The Tokamak Problem: Can We Ever Make Fusion Practical?

    2026/05/07 | 34 mins.
    Can 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/isaacarthur
    Watch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-age
    Check 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/53GAShE
    Credits: The Tokamak Problem: Can We Ever Make Fusion Practical?
    Written, Produced & Narrated by: Isaac Arthur
    Select imagery/video supplied by Getty Images
    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
  • Science & Futurism with Isaac Arthur

    The Tokamak Problem: Can We Ever Make Fusion Practical? (Narration Only)

    2026/05/07 | 34 mins.
    Can 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/isaacarthur
    Watch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-age
    Check 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/53GAShE
    Credits: The Tokamak Problem: Can We Ever Make Fusion Practical?
    Written, Produced & Narrated by: Isaac Arthur
    Select imagery/video supplied by Getty Images
    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
  • Science & Futurism with Isaac Arthur

    Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?

    2026/05/03 | 24 mins.
    When 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/isaacarthur
    Watch my exclusive video Surviving a New Ice Age: https://nebula.tv/videos/isaacarthur-surviving-a-new-ice-age
    Check 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/53GAShE
    Credits:
    Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?
    Written, Produced & Narrated by: Isaac Arthur
    Select imagery/video supplied by Getty Images

    Chapters
    0:00 Intro
    10:56 Restoration
    19:26 Practical Engineering
    See 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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About Science & Futurism with Isaac Arthur

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.
Podcast website

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