Is There a Trauma at the Heart of the Amnesia?

Something really bad happened around 12,800 years ago. And that's just a blink of an eye ago in the human story. It seems like a long time, but it's not. The Younger Dryas impact hypothesis is put forward by about 100 leading scientists. That we ran into the debris stream of a disintegrating comet. There were multiple air bursts, objects that weren't big enough to hit the Earth,. But that exploded in the sky, maybe 100 meters in diameter and caused sudden radical shift in climate.