3I/ATLAS is only the third interstellar object we’ve ever seen — but could it really be an alien artifact, or just another comet with unusual traits? Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/is...
Sep 23, 2025•27 min•Ep. 765
3I/ATLAS is only the third interstellar object we’ve ever seen — but could it really be an alien artifact, or just another comet with unusual traits? Any comments, corrections, or thoughts on the video? email Isaac.Arthur.Utube@gmail.com Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur Facebook Group: https://www.facebook.co...
Sep 23, 2025•27 min•Ep. 765
Could life thrive in seas of methane instead of water? We explore Titan-like worlds and the alien ecosystems they might harbor. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/isaacarthur to give a ye...
Sep 20, 2025•25 min•Ep. 764
Could life thrive in seas of methane instead of water? We explore Titan-like worlds and the alien ecosystems they might harbor. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/isaacarthur to give a ye...
Sep 20, 2025•26 min•Ep. 764
Space isn’t just for lonely colonies—it’s for communities. Join us as we imagine constellations of space habitats bound by tethers, trade, and trust, building not just homes in the stars but entire civilizations. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/...
Sep 18, 2025•38 min•Ep. 762
Space isn’t just for lonely colonies—it’s for communities. Join us as we imagine constellations of space habitats bound by tethers, trade, and trust, building not just homes in the stars but entire civilizations. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/...
Sep 18, 2025•38 min•Ep. 762
NASA’s Perseverance rover may have found the best hint yet of Martian life — strange minerals in Jezero Crater that could be microbial fingerprints… or just clever geology. Any comments, corrections, or thoughts on the video? email Isaac.Arthur.Utube@gmail.com Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur Facebook Group: ...
Sep 16, 2025•13 min•Ep. 762
NASA’s Perseverance rover may have found the best hint yet of Martian life — strange minerals in Jezero Crater that could be microbial fingerprints… or just clever geology. Any comments, corrections, or thoughts on the video? email Isaac.Arthur.Utube@gmail.com Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur Facebook Group: ...
Sep 16, 2025•12 min•Ep. 762
Feudalism once ruled Earth—could it rule the cosmos too? We dive into the strange but plausible world of space nobles, orbital dukes, and knights of the vacuum clad in power armor or piloting mecha. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=i...
Sep 14, 2025•27 min•Ep. 761
Feudalism once ruled Earth—could it rule the cosmos too? We dive into the strange but plausible world of space nobles, orbital dukes, and knights of the vacuum clad in power armor or piloting mecha. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=i...
Sep 14, 2025•27 min•Ep. 761
You’ve made it to a new world—but how do you make a living when Earth is light-years away? We chart how colonies bootstrap markets, money, and meaning—from scrip and rationing to trade networks and post-scarcity systems. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.ne...
Sep 11, 2025•34 min•Ep. 760
You’ve made it to a new world—but how do you make a living when Earth is light-years away? We chart how colonies bootstrap markets, money, and meaning—from scrip and rationing to trade networks and post-scarcity systems. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.ne...
Sep 11, 2025•34 min•Ep. 760
What if the end of everything came not from cosmic fate, but from us? This episode examines the physics, probability, and peril of experiments that could, in theory, unravel the universe. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur ...
Sep 07, 2025•34 min•Ep. 759
What if the end of everything came not from cosmic fate, but from us? This episode examines the physics, probability, and peril of experiments that could, in theory, unravel the universe. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur ...
Sep 07, 2025•34 min•Ep. 759
From O’Neill cylinders to spiral habitats, discover how humanity might build colossal, interconnected cities high above Earth. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/isaacarthur to give a yea...
Sep 04, 2025•30 min•Ep. 758
From O’Neill cylinders to spiral habitats, discover how humanity might build colossal, interconnected cities high above Earth. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/isaacarthur to give a yea...
Sep 04, 2025•30 min•Ep. 758
From abiogenesis to AI, we rank the top Great Filter candidates and test them against the data to see which best explains the Fermi Paradox. Is the universe empty, or just dangerous? We explore ten filters—cosmic, biological, and civilizational—that could silence civilizations before they spread. Feed Your Curiosity with Curiosity Box, use code 'isaac25' to get 25% off https://www.curiositybox.com?utm_source=YouTube&utm_medium=bloggers&utm_campaign=thesoulpub_aug_2025&utm_content=isa...
Sep 02, 2025•39 min•Ep. 757
From abiogenesis to AI, we rank the top Great Filter candidates and test them against the data to see which best explains the Fermi Paradox. Is the universe empty, or just dangerous? We explore ten filters—cosmic, biological, and civilizational—that could silence civilizations before they spread. Feed Your Curiosity with Curiosity Box, use code 'isaac25' to get 25% off https://www.curiositybox.com?utm_source=YouTube&utm_medium=bloggers&utm_campaign=thesoulpub_aug_2025&utm_content=isa...
Sep 02, 2025•39 min•Ep. 757
We often contemplate superintelligent entities, and advances in AI and human mind augmentation may soon bring them about. But how big could they get? What would they think about? And might you, or I, one day become one ourselves? Get a free trial TODAY with Hostinger Horizons! Use code ISAACARTHUR to get 10% off your first month here: hostinger.com/isaacarthur Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.co...
Aug 31, 2025•41 min•Ep. 755
We often contemplate superintelligent entities, and advances in AI and human mind augmentation may soon bring them about. But how big could they get? What would they think about? And might you, or I, one day become one ourselves? Get a free trial TODAY with Hostinger Horizons! Use code ISAACARTHUR to get 10% off your first month here: hostinger.com/isaacarthur Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.co...
Aug 31, 2025•41 min•Ep. 755
What happens after intelligence explodes beyond human comprehension? We explore a world shaped by superintelligence, where humanity may ascend, adapt — or disappear. Go to https://hensonshaving.com/isaacarthur and enter "Isaac Arthur " at checkout to get 100 free blades with your purchase. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: https://www.subscribestar.com...
Aug 28, 2025•34 min•Ep. 754
What happens after intelligence explodes beyond human comprehension? We explore a world shaped by superintelligence, where humanity may ascend, adapt — or disappear. Go to https://hensonshaving.com/isaacarthur and enter "Isaac Arthur " at checkout to get 100 free blades with your purchase. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: https://www.subscribestar.com...
Aug 28, 2025•34 min•Ep. 754
Before we build cities among the stars, we’ll need factories on the Moon. Discover how lunar industry could kickstart a space-based economy and reshape the future of humanity. Watch my exclusive video Dark Biospheres: https://nebula.tv/videos/isaacarthur-dark-biospheres-life-on-worlds-without-sunlight Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use th...
Aug 24, 2025•23 min•Ep. 753
Before we build cities among the stars, we’ll need factories on the Moon. Discover how lunar industry could kickstart a space-based economy and reshape the future of humanity. Watch my exclusive video Dark Biospheres: https://nebula.tv/videos/isaacarthur-dark-biospheres-life-on-worlds-without-sunlight Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use th...
Aug 24, 2025•23 min•Ep. 753
What does it take to turn the Sun into a power grid? Discover the step-by-step path from asteroid mining to a star-spanning megastructure. Watch my exclusive video Dark Biospheres: https://nebula.tv/videos/isaacarthur-dark-biospheres-life-on-worlds-without-sunlight Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/isaacar...
Aug 21, 2025•23 min•Ep. 752
What does it take to turn the Sun into a power grid? Discover the step-by-step path from asteroid mining to a star-spanning megastructure. Watch my exclusive video Dark Biospheres: https://nebula.tv/videos/isaacarthur-dark-biospheres-life-on-worlds-without-sunlight Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Use the link https://gift.nebula.tv/isaacar...
Aug 21, 2025•30 min•Ep. 752
The silence of the stars might be hiding more than an absence of life — it might conceal ancient machines, monuments, and traps from civilizations long vanished. Today, we explore these eerie cosmic echoes and the risks of unearthing them. Get a free trial TODAY with Hostinger Horizons! Use code ISAACARTHUR to get 10% off your first month here: hostinger.com/isaacarthur Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www....
Aug 17, 2025•30 min•Ep. 751
The silence of the stars might be hiding more than an absence of life — it might conceal ancient machines, monuments, and traps from civilizations long vanished. Today, we explore these eerie cosmic echoes and the risks of unearthing them. Get a free trial TODAY with Hostinger Horizons! Use code ISAACARTHUR to get 10% off your first month here: hostinger.com/isaacarthur Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www....
Aug 17, 2025•30 min•Ep. 751
Rogue planets wander the cosmos without stars, but could we still call them home? This episode dives into how humanity might transform these frozen giants into thriving outposts of civilization. Go to https://hensonshaving.com/isaacarthur and enter "Isaac Arthur " at checkout to get 100 free blades with your purchase. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: ...
Aug 14, 2025•28 min•Ep. 750
Rogue planets wander the cosmos without stars, but could we still call them home? This episode dives into how humanity might transform these frozen giants into thriving outposts of civilization. Go to https://hensonshaving.com/isaacarthur and enter "Isaac Arthur " at checkout to get 100 free blades with your purchase. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: ...
Aug 14, 2025•28 min•Ep. 750
