Could A Civilization Turn A Star Into A Computer?
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Hegemonizing Swarms
A Hegemonizing Swarm is a hypothetical living weapon, or self-replicating machine, which seeks to turn every last available bit of matter into more of itself or a desired construct. Paperclip Maximizer: https://youtu.be/3mk7NVFz_88 Produced,...
Lunar Mining, Processing & Refining
Go to https://brilliant.org/IsaacArthur/ to get a 30-day free trial + the first 200 people will get 20% off their annual subscription. After over half a century, it is time to return to the Moon, and use its vast resources as a bridge to countless...
Birch Planets: Galaxy-Sized Worlds
Birch Planets are enormous hypothetical Megastructures which would have more living area than every planet in our galaxy combined, and are even larger than Dyson Spheres. Mega Earths: https://youtu.be/ioKidcpkZN0 To find out more about...
SFIA Monthly Livestream: Sunday, July 30, 2023 4pm EST
Our monthly livestream Q&A session. Join us on July, 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:...
Building Artificial Planets
We may terraform Mars or Venus one day, but to truly make worlds like Earth, we may need to build them ourselves. Mega Earths: https://youtu.be/ioKidcpkZN0 To find out more about megastructures, see the Megastructure Compendium:...
Earth After Humanity
Connect the Dots with Ariadne: https://www.ariadne.inc We often think that one day the world will come to an end and humanity with it, and possibly with us causing it, but what would our world be like if life persisted after humanity was gone?...
Aliens Beyond the Galactic Rim?
Worlds far from the Galactic Core are thought to be low in many important elements for life, but some new research calls that into doubt, indicating that the ancient old worlds of the galactic rim might harbor alien life. See our episode The Fermi...
Life in 2323 A.D.
The first 1,000 people to use the link will get a 1 month free trial of Skillshare https://skl.sh/isaacarthur06237 What will life be like 300 years in our future, or for those living 300 million miles away? Visit our Website:...
Non-Equatorial Space Elevators
Space Elevators offer the possibility of ultra-cheap space travel for all, but even if we find strong enough materials to build one, can we place them near our cities or only on the equator? See our episode Space Elevators for more details:...