I’m not certain that studying more in 1980’s would have helped with sciences advances in the last twenty years.
My first hypothesis comes from something; I obviously need to learn more about. The premise that the first North American settlers came from Western Europe, somehow gives credence to the Solutrean theory. DNA testing of samples from, of all places, Montana has been used to disprove this. Really, Montana…I don’t buy it. Anyway, let’s go back to the original thoughts. There just don’t seem to be any big caches of bones, etc. for this Solutrean influx. But, if it was 14000-17000 bc then we have to wonder if there was a cataclysmic event that removed these folks from at least the eastern part of North America. At about 12,800bc there seems to have been a really sharp decline in nice weather. It wasn’t gradual, from ice core samples it was very abrupt. This was the start of the younger dryas. So, if they prove a big comet hit the earth about that time, the seas swelled, the temperature dropped. I think all those things make me wonder if we really understand where those first settlers, went. I think I know. Now I have to read and watch so much more information to at least feel educated. I think I’ll put all the links for some of this information below and you can decide for yourself. Good luck…like the song says: “the times they are a’changin”