What do snake oil, N-rays, and cold fusion have in common? They’re all cautionary tales reminding us why skepticism is essential to science—and to our future. Watch my exclusive video Dark Biospheres:...
The Fermi Paradox & The Hivemind Dilemma
Are we alone, or just looking for the wrong kind of aliens? Discover how the path to hive minds and distributed consciousness might answer the Fermi Paradox — and pose new dilemmas of their own. Watch my exclusive video Dark Biospheres:...
What’s the Biggest Structure in the Universe?
The cosmos is vast, but what’s the largest thing in it? From massive galactic filaments to speculative megastructures, we explore the biggest known formations in the Universe—and what might outsize even them. Join this channel to get access to perks:...
Galaxy Scale Megastructures & Kardashev 3 Civilizations
Imagine engineering projects so vast they mold galaxies into new shapes. We’ll explore the staggering feats of Kardashev-3 and beyond civilizations, crafting CARD galaxies, Birch Planets, and even rearranging superclusters. Watch my exclusive video Dark Biospheres:...
So… Could We Build Our Own Planet?
Could we really build an entire planet from scratch—and if so, what would it take to craft a world of our own design? Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join Visit our Website: http://www.isaacarthur.net...
Epochs of the Universe – The Cosmic Clock & Civilization
Explore the entire life story of the cosmos, from quantum flickers at the Big Bang to the distant eras of black holes and dark energy, and discover what kinds of civilizations might endure across these unimaginable spans of time. Watch my exclusive video Mass Drivers...
The 10 Best Alien Invasion Strategies
Aliens don’t always attack with lasers—sometimes, the smartest invasions begin with a gift, a whisper, or a smile. Join us as we count down ten invasion strategies that actually make sense. Join this channel to get access to perks:...
Vaults of Eternity – Planetary Archives & Stasis Fields
From metal scrolls buried under alien skies to frozen vaults holding minds or monarchs for millennia, we examine how advanced civilizations might safeguard their legacy against the slow grinding of eternity. Watch my exclusive video Mass Drivers on the Moon:...
Beaming Your Mind to a Starship or Colony
Can we travel the stars without a body? Explore the idea of uploading your mind and transmitting it at light speed to distant starships or colonies—becoming data instead of a passenger. Join this channel to get access to perks:...
Materials For Space Elevators – From Carbon Nanotubes To Graphene And Beyond…
Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! From carbon nanotubes to multi-layered graphene, we explore the revolutionary materials that could turn space elevators from sci-fi dreams into real-world...
Why are spaceship corridors always so dark?
Dark spaceship corridors might look cool—but is there a reason for it beyond mood lighting? Let’s shed some light on this sci-fi staple. Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join Visit our Website:...
Before the Big Bang – What Came Before Time?
Join us as we journey beyond the birth of the universe to unravel the mysteries of what might have preceded the Big Bang—and whether time itself had a beginning. Watch my exclusive video Mass Drivers on the Moon:...
