“The one thing we are certain of is that the first inhabitants came from the west not from the east.”
But much sooner than thought... In fact I believe in the theory that first man was on the American continent 130,000 years ago. I myself have found Mousterian stone tools in California. But of course this does not fit the narrative.
I didn’t know about the Mousterian stone tools. I see that they were mainly in Europe - and predated Solutrean/Clovis, which is what I find significant in the current context.