former habitat covered by the oceans now because they lived on what is now the continental shelf.Well, there's that for sure. Another issue is that the glaciers grind and "scrub" the British Isles every 100,000 years or so. I wonder how many traces of our civilization will be left in Britain after the next one?
Like you, my antennae go up when anyone suggest a "long period of stasis." The one constant in human history and earth history seems to be change.
One of the consequences of using mathematical models to figure out population and demographics in poorly documented eras is GIGO results:
- Human populations are tightly interwoven The most recent common ancestor of all humanity lived just a few thousand years ago, according to a computer model of our family tree. Researchers have calculated that the mystery person, from whom everyone alive today is directly descended, probably lived around 1,500 BC in eastern Asia...
That's *everyone* including all the inhabitants of the Americas and the Caribbean islands, all the Polynesians, Melanesians, Micronesians, every African...