Science & Futurism With Isaac Arthur

It's popular to say nothing is impossible, especially in regard to the future and our Universe, but are there somethings which might turn out to be impossible or at least so impractical they never occur? Watch the video version: https://youtu.be/KIvaPRzDJwo SFIA Episode List (Chronological): https://docs.google.com/spreadsheets/d/1E7UTCFWSRk1vuyjmYhSvtmvINVSU9tWy5LabQeHW9t8/edit?usp=sharing Get a free month of Curiosity Stream: http://curiositystream.com/isaacarthur Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Things Which Will Never Exist Episode 200, Season 5 E35 Written by: Isaac Arthur Editors: Darius Said Evan Schultheis Keith Bl

Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ In the future humanity might build structures of incomprehensible size and splendor, megastructures and artificial worlds, but somebody is going to have to build and maintain these feats of science and engineering and clean up all the orbital debris. Watch the Video Version: https://youtu.be/2Tbffv7ZCz8 Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Megatructure Maintenance & Space Janitors Episode 199, Season 5 E34 Written by: Isaac Arthur Editors: Jerry Guern Keith Blockus Mark Warburton Olly Epsom Cover Art: Jakub Grygier Graphics by: Bryan Verteeg Darth Biomech Fis

Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ In the future humanity might build structures of incomprehensible size and splendor, megastructures and artificial worlds, but somebody is going to have to build and maintain these feats of science and engineering and clean up all the orbital debris. Watch the Video Version: https://youtu.be/2Tbffv7ZCz8 Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Megatructure Maintenance & Space Janitors Episode 199, Season 5 E34 Written by: Isaac Arthur Editors: Jerry Guern Keith Blockus Mark Warburton Olly Epsom Cover Art: Jakub Grygier Graphics by: Bryan Verteeg Darth Biomech Fis

Nuclear Fusion holds the potential to free us of so many of the constraints offered by everything from fossil fuels to renewable energy option like wind and solar, if we can just get it working. Today we'll look at the challenges facing us in terms of the physics and engineering, the various possible reactors like the Tokamak, Poylwell, NFI, and more, and see what a bright future fusion might offers us. Watch the Video Version: https://youtu.be/ChTJHEdf6yM Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "ISAAC" to 500-500. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: htt

Nuclear Fusion holds the potential to free us of so many of the constraints offered by everything from fossil fuels to renewable energy option like wind and solar, if we can just get it working. Today we'll look at the challenges facing us in terms of the physics and engineering, the various possible reactors like the Tokamak, Poylwell, NFI, and more, and see what a bright future fusion might offers us. Watch the Video Version: https://youtu.be/ChTJHEdf6yM Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "ISAAC" to 500-500. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: htt

Natural disasters can topple civilizations, even in modern times, but with more and more technology civilizations become more robust and capable of predicting future calamities and preventing such ruin. So what other threats face spacefaring civilizations, both at the interplanetary and interstellar scale? Watch the video version: https://youtu.be/Y-CrHiiN0fI Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Threats to Interplanetary & Interstellar Civilizations Episode 197, Season 5 E32 Written by: Isaac Arthur Editors: Darius Said Jerry Guern Keith Blockus Stuart Graham

Natural disasters can topple civilizations, even in modern times, but with more and more technology civilizations become more robust and capable of predicting future calamities and preventing such ruin. So what other threats face spacefaring civilizations, both at the interplanetary and interstellar scale? Watch the video version: https://youtu.be/Y-CrHiiN0fI Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Threats to Interplanetary & Interstellar Civilizations Episode 197, Season 5 E32 Written by: Isaac Arthur Editors: Darius Said Jerry Guern Keith Blockus Stuart Graham

Alien Invasions have been a staple of science fiction for years, with motherships and UFOs assaulting Earth, but how realistic is such a thing? We'll take a look at what might motivate an attack, how it might happen, what alternatives might make more sense, and what might prevent extraterrestrials from trying. Watch the video version: https://youtu.be/rBFubEKHR7A Get a free month of Curiosity Stream: http://curiositystream.com/isaacarthur Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Invasive Aliens Episode 196, Season 5 E31 Written by: Isaac Arthur Editors: Darius Said Jerry Guern Keith Blockus Matthew Campbell S. Kopperud Cover Art:

Alien Invasions have been a staple of science fiction for years, with motherships and UFOs assaulting Earth, but how realistic is such a thing? We'll take a look at what might motivate an attack, how it might happen, what alternatives might make more sense, and what might prevent extraterrestrials from trying. Watch the video version: https://youtu.be/rBFubEKHR7A Get a free month of Curiosity Stream: http://curiositystream.com/isaacarthur Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Invasive Aliens Episode 196, Season 5 E31 Written by: Isaac Arthur Editors: Darius Said Jerry Guern Keith Blockus Matthew Campbell S. Kopperud Cover Art:

We continue our discussion of the Boltzmann Brain - a hypothetical randomly assembled mind rather than an evolved one - by looking at the Anthropic Principle and the Fine-Tuned Universe Theory, alternative ways of viewing the probability of our existence than the classic Copernican Principle. Watch the video versions: Part 1: https://www.youtube.com/watch?v=9UfQb_-XAuY Part 2: https://youtu.be/GrK9EaQRp2I Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Boltzmann Brains, Part 2: The Anthropic Principle Episode 195b, Season 5 E30b Written by: Isaac Arthur Jade Tan-Holmes Scri

The idea of spaceships or other machines that were essentially alive and able to repair and operate themselves has long been a popular one in science fiction. We'll take a look today at how that might be possible in the future, what advantages it would have for interplanetary or interstellar colonization, and how it might lead to entire artificial ecosystems dwelling in the void of space. Watch the video version: https://youtu.be/YYEUKRHGgAg Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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 Whales & Bioships Episode 195, Season 5 E30 Written by: Isaac Arthur Jerry G

The idea of spaceships or other machines that were essentially alive and able to repair and operate themselves has long been a popular one in science fiction. We'll take a look today at how that might be possible in the future, what advantages it would have for interplanetary or interstellar colonization, and how it might lead to entire artificial ecosystems dwelling in the void of space. Watch the video version: https://youtu.be/YYEUKRHGgAg Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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 Whales & Bioships Episode 195, Season 5 E30 Written by: Isaac Arthur Jerry G

The possibility of extraterrestrial life on other worlds has long fascinated us, as has the idea of alien life living in space itself, but while the former is often considered quite probable, the idea of anything evolving on airless moons, comets, and asteroids seems less likely. But with scientists uncovering life in ever more extreme and inhospitable environments on Earth, perhaps it is more likely than we think. Watch the video version: https://youtu.be/0ZPlhwiXIz0 Sign up with Skillshare for 2 months of Free classes: https://skl.sh/isaacarthur12 Check out Purple Dreams, a collection of short stories by Jerry Guern: https://www.amazon.com/dp/B07TPBJSXF/ ... and the short story Momentum, narrated by the author https://www.youtube.com/watch?v=OMnyiW9ynYA Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://

The possibility of extraterrestrial life on other worlds has long fascinated us, as has the idea of alien life living in space itself, but while the former is often considered quite probable, the idea of anything evolving on airless moons, comets, and asteroids seems less likely. But with scientists uncovering life in ever more extreme and inhospitable environments on Earth, perhaps it is more likely than we think. Watch the video version: https://youtu.be/0ZPlhwiXIz0 Sign up with Skillshare for 2 months of Free classes: https://skl.sh/isaacarthur12 Check out Purple Dreams, a collection of short stories by Jerry Guern: https://www.amazon.com/dp/B07TPBJSXF/ ... and the short story Momentum, narrated by the author https://www.youtube.com/watch?v=OMnyiW9ynYA Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://

Space is an awesome place filled with virtually infinite wonders to explore, and human colonization will likely make far more. It may soon be possible for people to journey up to orbit as tourists, and in the more distant future this might become a vast trade, with tourism in Space Station Hotels or on the Moon or Mars or traveling to countless other planets, moons, asteroids, or megastructures. Watch the video version: https://youtu.be/-YebEDmbG_M Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "ISAAC" to 500-500. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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://dis

Space is an awesome place filled with virtually infinite wonders to explore, and human colonization will likely make far more. It may soon be possible for people to journey up to orbit as tourists, and in the more distant future this might become a vast trade, with tourism in Space Station Hotels or on the Moon or Mars or traveling to countless other planets, moons, asteroids, or megastructures. Watch the video version: https://youtu.be/-YebEDmbG_M Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "ISAAC" to 500-500. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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://dis

There are many reasons not to eat meat, or at least less of it: medical, ethical, economical, or ecological, but the stuff is quite tasty. Today we'll look at how artificial meat technologies in the near future might allow us to produce a genuine alternative to modern methods of standard agriculture or meat substitutes, and maybe even some exotic meats not available at the supermarket. Watch the video version: https://youtu.be/_NULFAItoBs Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Synthetic Meat Episode 193, Season 5 E28 Written by: Andrew Norman Isaac Arthur Editors:

There are many reasons not to eat meat, or at least less of it: medical, ethical, economical, or ecological, but the stuff is quite tasty. Today we'll look at how artificial meat technologies in the near future might allow us to produce a genuine alternative to modern methods of standard agriculture or meat substitutes, and maybe even some exotic meats not available at the supermarket. Watch the video version: https://youtu.be/_NULFAItoBs Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Synthetic Meat Episode 193, Season 5 E28 Written by: Andrew Norman Isaac Arthur Editors:

In order to get into space, we require either huge amounts of rocket fuel or dangerously powerful energy sources, making personal spacecraft a technology limited to science fiction. But by harnessing beamed power sources to run engines, we may be able to create a spaceplane cheap enough and safe enough that anyone could have one in the future. Watch the video version: https://youtu.be/Wol8EU6Rtbk Sign up with Skillshare for 2 months of Free classes: https://skl.sh/isaacarthur11 Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Upward Bound: Beam Powered Spaceships Episode 192, Season 5 E27 Written by: Isaac Arthur Editors: Evan Schultheis

In order to get into space, we require either huge amounts of rocket fuel or dangerously powerful energy sources, making personal spacecraft a technology limited to science fiction. But by harnessing beamed power sources to run engines, we may be able to create a spaceplane cheap enough and safe enough that anyone could have one in the future. Watch the video version: https://youtu.be/Wol8EU6Rtbk Sign up with Skillshare for 2 months of Free classes: https://skl.sh/isaacarthur11 Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: 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: Upward Bound: Beam Powered Spaceships Episode 192, Season 5 E27 Written by: Isaac Arthur Editors: Evan Schultheis