The Younger Dryas Would Erase Us Without Trace

The Younger Dryas was not a single event. It was a convergence of multiple catastrophic forces, each one capable of erasing civilisation independently - and they all arrived together.

The thought experiment the speaker offers is a useful measure of the scale involved. If the Younger Dryas were repeated today, archaeologists ten thousand years from now would struggle to find meaningful evidence that our civilisation had ever existed. Roads, cities, and infrastructure would be gone. What remained would be fragmentary at best.

That is precisely the problem when searching for evidence of what came before us. The absence of a clear record is not proof that nothing was there. It may simply be proof that the Younger Dryas did exactly what multiple catastrophes on that scale are designed to do.