From what I have read humans didn’t really flourish as a species till about 6000 years ago somewhere in Iraq. I mean written language , permanent settlements, the growing of crops etc etc.
Was it some evolutionary mutation in our brain that made us smarter or the supernatural imprint of a soul? When you look at the advancement on a timeline in proportion it’s not a curve , it’s a vertical line straight up.
Who knows. It’s kind of a bottomless rabbit hole if you want argue about it. I find it’s best to leave it alone.