he had me going until "...that made us a species with amnesia and wiped out almost all traces of a former high civilisation of prehistoric antiquity" This summ

he had me going until "...that made us a species with amnesia and wiped out almost all traces of a former high civilisation of prehistoric antiquity" This summarizes the evidence nicely: https://en.wikipedia.org/wiki/Younger_Dryas_impact_hypothesis https://en.wikipedia.org/wiki/Younger_Dryas_impact_hypothesi...