I suspect civilization as we know it is a post-traumatic response to the Younger Dryas. https://en.wikipedia.org/wiki/Younger_Dryas https://en.wikipedia.org/wik

I suspect civilization as we know it is a post-traumatic response to the Younger Dryas. https://en.wikipedia.org/wiki/Younger_Dryas https://en.wikipedia.org/wiki/Younger_Dryas