Can humanity ever know everything? Explore the hard limits of knowledge: cosmic horizons, quantum measurement, chaos, computation, lost meaning, AI, wisdom, and the shoreline of the unknown. Get Nebula using my link for 50% off an annual subscription:...
The Great Lunar Boom – Building a Civilization on the Moon
The Moon isn’t a stepping stone—it’s the foundation. Discover how industry, logistics, and self-building machines could turn Luna into humanity’s first off-world civilization. Get Nebula using my link for 50% off an annual subscription:...
The End of Time: Heat Death, Big Rip, or Big Crunch?
Will the universe fade, rip apart, collapse, reset, or simply stop making sense? A tour of the strangest possible endings of reality. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Check out Joe's Scott's Oldest and...
The Most Dangerous Stars in the Universe
The universe has stars that don’t just shine, they threaten worlds. Explore neutron stars, magnetars, pulsars, hypernovae, vampire stars, and gamma-ray bursts. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch the SFIA...
The Dark Forest Has One Big Problem
The Dark Forest solution to the Fermi Paradox imagines the galaxy as a place where every civilization hides, afraid that making noise will bring hunters. But life itself is noisy. Long before radio, rockets, or cities, Earth was already advertising biology through...
Ask Me Anything About the Future | Space, AI, Aliens & Civilization | SFIA July Live Q&A
Join Isaac Arthur for a live discussion on the future of humanity and the technologies that will get us there! 🌌 This month, we are diving deep into your questions on space megastructures, interstellar travel, and the long-term trajectory of our civilization. 🔭 Bring...
Digital Immortality – Backing Up the Human Soul
Could digital immortality really save you, or just create a convincing copy? We explore mind uploading, backups, identity, and whether survival means continuity… or redundancy. Get Nebula using my link for 50% off an annual subscription:...
Is AI the Great Filter? | The Fermi Paradox
Artificial intelligence may be civilization’s greatest tool… or its last. Could AI explain why the galaxy seems silent, or does it make the Fermi Paradox even harder? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch...
Could We Reach Alpha Centauri in 20 Years?
Alpha Centauri is 4.37 light years away—so could we reach it in 20 years? Only by leaving ordinary rockets behind for beamed sails, antimatter, or stranger drives. 🚀 Join this channel to get access to perks:...
Water Shielded Starships – Surviving Radiation in Deep Space
From cosmic rays to solar storms, space travel is a radiation gauntlet... but water may be the simplest, smartest solution. Discover how future starships might turn their life-support systems into life-saving armor. Get Nebula using my link for 50% off an annual...
Antimatter Containment – Bottling the Lightning
Can antimatter be stored safely? Explore magnetic traps, starship fuel, and the terrifying challenge of bottling energy that destroys any container it touches. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my...
What If We Found a Second Earth Nearby?
What if we found a true second Earth nearby? A living world, a barren paradise, or something too familiar to be natural could change science, politics, and humanity’s future forever. Get Nebula using my link for 50% off an annual subscription:...
