I'm not that boring at parties! I can't divine exactly what the OP meant, but it's a pretty common argument amongst nonbelievers that ancient religious myths (

I'm not that boring at parties! I can't divine exactly what the OP meant, but it's a pretty common argument amongst nonbelievers that ancient religious myths (especially the Flood, also present in a handful of non-abrahamic traditions) were somehow inspired by even older oral traditions of stuff that actually happened in their dim and distant past (as opposed to the flooding they experience on a regular basis). It appears I'm not the only person that perceived that was being implied. Regardless, I don't think "genetic bottlenecks scientists believe exist in the human evolutionary tree" and "religious stories that may or may not be interpreted literally" has much conceptual overlap, either in terms of modern people's awareness of modern bottleneck theories or in terms of links between prehistoric events and mythology which became popular much later.