So… the apocalypse happened. Nuclear war, a giant asteroid, or maybe the aliens finally got tired of our nonsense. The big question is: how many people would it take to reboot humanity?
This video explores the real science behind rebuilding the human race after a near-extinction event. Drawing on research from genetics, endangered species conservation, and even space colonization, it explains why genetic diversity is the key to avoiding a future filled with inherited diseases. While a healthy civilization might need around 14,000 people, the bare minimum for long-term survival could be as low as 5,000, and under very specific, carefully planned conditions, some scientists think fewer than 100 genetically diverse people might actually pull it off.
Whether you’re into science, post-apocalyptic stories, or just wondering if your family group chat could repopulate Earth, this one’s well worth watching.