Archaeology and genetics can’t yet agree on when humans arrived in the Americas
The only hypothesis I can come up with that lets me square the archaeological evidence (the numerous sites with pre-clovis dates) and the genetic evidence (almost all current North American indigenous population genetics derives from a single population that split off 17Kya) is that there&#x27;s been multiple waves of people that have migrated into the Americas, and that either the events precluding or surrounding the Younger Dryas period contributed to a severe depopulating of the continent at that time, or that the most recent wave of immigrants almost entirely wiped out the previous population, as had they absorbed them I would assume we&#x27;d see more genetic evidence of that.<p>Personally I think the preponderance of archaeological evidence is strongly suggesting that there were absolutely people in the Americas pre-clovis, but the really interesting question from here then is who were they and what happened to them?