Post-Consciousness Civilizations: Evolving Beyond Human Awareness Extended Edition
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The Fermi Paradox: The Cronus Scenarios
Go to https://brilliant.org/IsaacArthur/ to get a 30-day free trial and 20% off their annual subscription. We often worry that the reason we hear nothing in our search for extraterrestrial intelligence is that travel to other stars is just too...
Clean Energy From Space
Space offers a variety of clean and abundant sources of power, but how can we get them down to Earth? And which are safe and economical? Watch my exclusive video Galactic Beacons: https://nebula.tv/videos/isaacarthur-galactic-beacons Get Nebula...
How Old Are The Canals On Mars?
The famous canals of Mars are thought to indicate the Red Planet was once blue, billions of years ago, but could they be more recent?
Multi-Planetary Empires
One day humanity may settle countless worlds, but could any nation hope to govern multiple planets or even star systems? Watch my exclusive video Crystal Aliens https://nebula.tv/videos/isaacarthur-crystal-aliens Get Nebula using my link for 40%...
Kugelblitz Black Holes
Learn more about the game and see it in action at https://upperstory.com/turingtumble/?utm_source=YouTube&utm_medium=XXXX Use the coupon code ISAACARTHUR for 10% off your total purchase Black Holes can swallow anything, even light, and small...
4-Dimensional Gravity & Habitable Universes
We often imagine Universes with more dimensions than ours... but could such places have planets and stars that life might live on?
Chandelier Cities
While we sometimes imagine vast structures rising above the sky, it is possible to have equally vast structures hang down from the sky, and on world's whose atmospheres are far larger than earth's, this may be where people choose to live. Graphics:...
The Fermi Paradox: Rare Complexity
Use code isaacarthur at the link below to get an exclusive 60% off an annual Incogni plan: https://incogni.com/isaacarthur Life is incredibly complicated, but for most of Earth’s history it was much simpler. Is it possible the Universe is full of...
What is a ‘Hubble Volume’?
Terms like Universe, Observable Universe, and Hubble Volume often get used interchangeably and explained in very technical terms, but simply put, what are they and how do they differ?