SCIENCE & FUTURISM WITH ISAAC ARTHUR

Compare news coverage. Spot media bias. Avoid algorithms. Try Ground News today and get 30% off your subscription by going to https://ground.news/isaacarthur In the past, we had entire civilizations devoted to agriculture, but in the future, we might have entire planets devoted to it. 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Agriworlds Episode 423; November 30, 2023 Written, Produced & Narrated by: Isaac Arthur Graphics by: Jeremy Jozwik Katie Byrne Ken York/YD Visual Steve Bowers Udo Schroeter Music Courtesy of: Epidemic Sound http://epidemicsound.com/creator Sergey Cheremisinov, "Labyrinth" Taras Harkavyi, "Alpha and..."

Terraforming is a long process, by beginning in existing canyons & craters, a new settlement can more easily and safely begin the process. Produced, Written & Narrated by: Isaac Arthur Graphics & Concept Credit: Wesley Bruce / Orion's Arm: https://www.orionsarm.com/eg-article/51f7d32f54b72 Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

In order to survive and thrive in space, we have to be able to create and maintain clean and comfortable living spaces, and remain vigilant nothing disease or virus reaches Earth. Watch my exclusive video Ultra-Relativistic Spaceships: https://nebula.tv/videos/isaacarthur-ultrarelativistic-spaceships Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Space Hygiene Episode 422a; November 26, 2023 Written, Produced & Narrated by: Isaac Arthur Graphics: Jeremy Jozwik, NASA, ESA, CSA Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Try Cell to Singularity, free to play: https://l.linklyhq.com/l/1uNoF Among the billions and billions of planets and moons in this galaxy, we may encounter many examples of double planets, but what would they be like and could life arise on them? 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Double Planets Episode 422; November 23, 2023 Written, Produced & Narrated by: Isaac Arthur Graphics by: Jeremy Jozwik Ken York YD Visual Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Stellardrone, "Red Giant", "The Divine Cosmos" Miguel Johnson, "So Many Stars", Strange New World" 0:00 Intro 3:59 Origins 8:35 Tidal Friction & Locking 14:32 Double Earth 16:49 Air Bridge 19:13 Physical Bridge 20:05 Roche world 23:43 Klemplerer Rosette

Many worry that Earth may have reveal ourselves to hostile alien empires by transmitting signals, but is it already too late? Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Mars gets little sunlight, but we may be able to warm the Red Planet by using orbital mirrors to shine more sunlight down on Martian bases. Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Ground News Black Friday Sale: Compare news coverage. Spot media bias. Join Ground News today to get 40% off unlimited access: https://ground.news/isaacarthur Sale ends November 30. Visions of a settled Mars always seem to have vast domes, but is a future on the Red Planet a domed one? And how should they be built? To learn more about the NSS spUN Debates and how to participate, visit: https://space.nss.org/spun-debates/ New World's Space Cowboy Ball: https://newworlds.space/ 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Domes Of Mars Episode 421; November 16, 2023 Written, Produced & Narrated by: Isaac Arthur Editors: Donagh Broderick Konstantin Sokerin Graphics by: Bryan Versteeg Jeremy Jozwik Ken York YD Visual Rapid Thrash Sergio Botero Steve Bowers Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Stellardrone, "Red Giant", "The Divine Cosmos"

Zombie Stars are the possible remnants of failed Type 1ax Supernovae from too rapidly absorbing mass, leaving a remnant of heavier matter behind. Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Try Cell to Singularity, free to play: https://l.linklyhq.com/l/1uNoF As we search the heavens for signs of alien life, is it possible that the easiest place to find aliens is to look in the mirror? 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Human Aliens Episode 420a; November 12, 2023 Written, Produced & Narrated by: Isaac Arthur Editors: Donagh Broderick Graphics by: Ken York YD Visual Legiontech Studios Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Martin Rezny, "Lifelight" Stellardrone, "A Moment of Stillness", "Cosmic Sunrise", "Red Giant" Aerium, "Fifth Star of Aldebaran" Miguel Johnson, "Strange New World", "Night Forever"

Go to https://buyraycon.com/isaacarthur to get 20 to 50% off sitewide! Brought to you by Raycon. In the grand theater of the cosmos, amidst a myriad of distant suns and ancient galaxies, the Fermi Paradox presents a haunting silence, where a cacophony of alien conversations should exist. Where is Everyone? Or are we alone? 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: The Fermi Paradox Compendium of Solutions & Terms Episode 420; November 9, 2023 Written, Produced & Narrated by: Isaac Arthur Editors: Donagh Broderick Graphics by: Darth Biomech Jeremy Jozwik Katie Byrne Ken York YD Visual Legiontech Studios Sergio Botero Tactical Blob Udo Schroeter Music Courtesy of: Epidemic Sound http://epidemicsound.com/creator Markus Junnikkala, "Memory of Earth" Stellardrone, "Red Giant", "Ultra Deep Field" Sergey Cheremisinov, "Labyrinth", "Forgotten Stars" Miguel Johnson, "The Explorers", "Strange New World" Aerium, "Fifth star of Aldebaran", "Windmill Forests", "Deiljocht" Lombus, "Cosmic Soup" Taras Harkavyi, "Alpha and..." 0:00:00 Intro 0:02:49 Solutions & Filters 0:10:13 Aestivation Hypothesis 0:12:06 Aliens Common But Unrecognizable 0:14:18 Aliens Used To Visit Earth 0:16:50 Ancient Aliens 0:18:47 Anthropic Principle 0:21:07 Ascension 0:22:12 Asteroid Impacts 0:23:33 Asymptotic Burnout 0:25:53 Audio Raycon 0:27:16 Aurora Effect 0:29:56 Axial Tilt 0:31:35 Berserkers & Hibernating Monsters 0:33:05 Black Hole Farming 0:34:50 Boltzmann Brain 0:35:59 Carbon & Nitrogen Ratios 0:39:05 Colonizing Is Too Dangerous 0:40:48 Colonizing Is Too Hard 0:42:19 Compounding Filters 0:43:54 Cosmic Collectors 0:47:07 Critical Element Scarcity 0:48:17 Dark Forest Theory 0:50:43 Detection Windows are Few and Short 0:52:08 Drake's Equation 0:54:12 Dyson Dilemma 0:58:04 Earth & Humans Are Boring 1:00:04 Filters 1:02:12 FTL: Faster Than Light Travel 1:04:12 Galaxy Type & Stability 1:05:36 Goldilocks Zone 1:07:03 Grabby Aliens 1:10:58 Great Filter 1:12:33 Great Silence 1:13:03 Hart-Tipler Conjecture 1:14:56 Hermit Shoplifter Hypothesis 1:18:04 Inevitable Intelligence Implosions 1:18:54 Interdiction Hypothesis 1:22:36 Inter-Universe Migration 1:24:26 Jovian Vacuum Cleaner 1:25:38 Kardashev Scale 1:26:47 Large Moon needed 1:28:12 Late Filters 1:29:04 Life or Intelligence Is Not Natural 1:30:30 Loud Aliens 1:32:26 Low-Energy Ecosystems 1:34:02 Mediocrity Principle 1:35:21 Metallicity 1:36:56 Miniaturization 1:38:29 Multiverse & Alternate Reality Aliens 1:40:03 Neurohacking for Happiness 1:42:01 Nihilism or Ennui 1:45:43 Non-Exclusivity 1:51:18 Ocean To Land Ratio 1:53:08 Orbital Eccentricity 1:54:41 Our Galaxy Isn't The Whole Universe 1:57:07 Oxygen Content 1:59:12 Panspermia 2:01:03 Percolation Theory 2:06:50 Perpetual Motion Machines 2:09:04 Post-Biological 2:10:41 Prime Directive 2:12:27 Psychic Poison 2:13:54 Quarantine Hypothesis 2:15:34 Quarantine Is Self-Imposed 2:16:21 Quiet Aliens 2:16:59 Rare Earth Hypothesis 2:18:29 Rare Intelligence 2:19:27 Rare Sun 2:20:47 Rare Technology 2:21:45 Recent Galactic Catastrophe Or War 2:23:26 Region of Galaxy 2:24:15 Resource Hoarding 2:25:48 Rim Migration 2:26:55 SETI, METI, Dysonian SETI 2:29:58 Simulation Argument 2:31:34 Solution Exacerbates the Fermi Paradox 2:33:32 Stellar Neighborhood 2:34:40 Techno and Bio-Signatures 2:35:58 Technological Singularity 2:37:23 Technological Timebombs 2:38:59 Tectonic Activity Needed 2:40:31 They Are Talking But We Can't Hear Them 2:42:44 They Don't Use Light To Communicate 2:45:51 They Don't Want To Talk To Us 2:48:11 They Hide From Everyone 2:48:46 They Hide From Us 2:50:44 They Hide Here On Earth 2:53:21 Tidal Locking 2:54:19 Time Elapse Argument 2:56:19 Time Travel 2:57:26 Type Of Star 2:58:55 Universe Too Young 3:00:24 Virtual Reality Utopia 3:01:42 Vulnerable World Hypothesis 3:03:30 We Are Aliens 3:06:31 We Haven't Logged Into The Network Yet 3:07:42 Zoo Hypothesis 3:08:55 Closing Remarks 3:11:39 Credits

Science fiction often shows ships running into black holes unnoticed, but how many black holes are even in this galaxy? Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

The Moon is the nearest body to us, and we wish to settle it, but could it ever have air and open skies? Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Throughout history it has been common for distant colonies to break away from their homeland. In a future where colonies are entire planets and light years from home, shall history repeat itself? Watch my exclusive video Ultra-Relativistic Spaceships: https://nebula.tv/videos/isaacarthur-ultrarelativistic-spaceships Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur NSS Survey: https://www.surveymonkey.com/r/NSSOpinionSurvey 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Rebel Space Colonies Episode 419; November 2, 2023 Written, Produced & Narrated by: Isaac Arthur Graphics by: Fishy Tree Jeremy Jozwik Legiontech Studios Sergio Botero Udo Schroeter Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Miguel Johnson, "So Many Stars" Stellardrone, "Red Giant", "Ultra Deep Field" Sergey Cheremisinov, "Labyrinth", "Forgotten Stars" Taras Harkavyi, "Alpha and..."

We search for biosignatures and technosignatures, signs of life or civilizations, but should we be searching for signs of civilizations or worlds being destroyed? Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Our monthly livestream Q&A session. Join us on October 29, 2023, at 4pm EST, Sunday, and get your questions about the channel and episodes on chat to be answered! Join Nebula: https://go.nebula.tv/isaacarthur Support the stream: https://streamlabs.com/isaacarthur Catch the audio-only show on Soundcloud: https://soundcloud.com/isaac-arthur-148927746 Visit our Website: https://www.isaacarthur.net SFIA Discord Server: https://discord.gg/53GAShE Support us on Patreon: https://www.patreon.com/IsaacArthur Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

In some of our greatest wars on this world we have seen entire regions covered in fortifications, but in great wars across whole regions of our galaxy, could we see entire planets fortified? Learn more about the game and see it in action at https://upperstory.com/spintronics/ Use the coupon code ISAACARTHUR for 10% off your total 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/isaac-arthur Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Fortress Worlds Episode 418; October 26, 2023 Written, Produced & Narrated by: Isaac Arthur Graphics by: Apogii.uk Darth Biomech Fishy Tree Jeremy Jozwik Ken York YD Visual Legiontech Studios Udo Schroeter Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Markus Junnikkala, "Hail The Victorious Dead" Stellardrone, "Red Giant", "Ultra Deep Field" Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"

The Banks Orbital is an enormous space habitat with hundreds of times more living area than a normal planet. Produced, Written & Narrated by: Isaac Arthur Graphics: Steve Bowers Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Bishop Ring Space Habitat is a continent-class space habitat design larger than a country that might house billions or an entire continent's ecosystem Produced, Written & Narrated by: Isaac Arthur Graphics: Steve Bowers Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

As medical science improves and lifespans rise, we must consider not only if life extension is possible, but if it is ethical. Watch my exclusive video Dark Stars At The Beginning Of Time: https://nebula.tv/videos/isaacarthur-dark-stars-at-the-beginning-of-time Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Learn more about Space Vision and SEDS: spacevision.seds.org 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.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Is Life Extension Ethical? Episode 417; October 19, 2023 Written, Produced & Narrated by: Isaac Arthur Editor: David McFarlane Graphics by: Jeremy Jozwik Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Stellardrone, "Red Giant" Chapters 00:00 Intro 02:32 Not Natural 12:18 Immortality Is Wrong 14:16 It Would Get Boring 15:57 Overpopulation 19:50 Unequal Access 23:52 Upward Mobility 27:58 Slows Technological Progress 29:59 Slows Cultural Change 31:22 Erodes Traditional Relationships 32:29 Ends Children 34:55 Makes You Inhuman 37:38 Gradual Life Extension 40:13 Summary 42:04 Dark Stars 43:33 SEDS 44:36 Schedule 46:00 Credits

Earth's temperature is thought to have changed greatly in the past, and even more extreme than in the Ice Ages. We believe once the entire planet may have been frozen over, a Snowball earth. Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator