Why Earth Resets Every 100,000 Years

Every hundred thousand years, like clockwork, the planet freezes. Not gradually. Not gently. The ice sheets grow for ninety thousand years, slowly and relentlessly, until a third of the planet is buried under kilometers of ice. And then, in a geological instant, it collapses. The world warms. The ice retreats. Sea levels rise by over a hundred meters. And the cycle begins again. This is not a theory. It is written in ice cores drilled from the Antarctic plateau, in layer after layer of compressed ancient snow going back eight hundred thousand years. Eight complete cycles. The same pattern repeating with eerie precision. In this video we go deep into what drives it. The three astronomical cycles that Milutin Milankovitch calculated by hand in a Budapest prison during the First World War. The ice-albedo feedback that amplifies a tiny orbital signal into a full planetary reset. The carbon dioxide connection that the Vostok core revealed. The megafauna that vanished with the last transition. And the uncomfortable question of whether the next reset is already overdue. Put your headphones in. Get comfortable. Let's go. Leave a comment with where in the world you are watching from and what time it is. I always read them. #sleeptohistory #iceage #earthscience #ancientearth #scienceexplained