I sincerely doubt such statements, for they are often predicated by pre-derived assumptions. Eg confirmation bias. One example? Having a close to extinction

I sincerely doubt such statements, for they are often predicated by pre-derived assumptions. Eg confirmation bias. One example? Having a close to extinction event, doesn't invalidate that prior waves existed. https://www.npr.org/sections/krulwich/2012/10/22/163397584/how-human-beings-almost-vanished-from-earth-in-70-000-b-c https://www.npr.org/sections/krulwich/2012/10/22/163397584/h... EG, this potentially happened with populations seen in the old world, so there is no reason to presume differently for the new. And there is no reason to presume it only happened once, eg near extinction.