/his/ is there any validity to the notion that there were advanced civilizations prior to the ice age??
We have been anatomically human for 200000 years
What are the odds we are just rebuilding what we once had?
>>2081876
>>2082187
>prior to the ice age
no
>in earth's distant past
there is no way of knowing for sure, though geological survey suggests such a hypothetical civilization would not have reached industrial levels of exploitation of earth's mineral reserves
>>2082192
>>2081876
If they ever industrialized, we'd see it on the rock layers.