We've seen a much more recent 'explanation' for Sa'ami genes in the Americas where another group with related ancestry, managed to cross Beringia with the ancestors of the Indians back then ~ and I think the guy even used the Jomon pottery as part of his evidence.
Will dig that one up ~
Over time there have been thousands of large Pacific tsunamis that explain all Transpacific movements of East Asians to the Americans. They didn't need to walk ~ just a debris field. Thought it interesting archaeologists had been saying the ocean currents weren't sufficient to get folks from there to here, yet those currents were able to move an entire floating dock unit from Japan to Oregon!
More importantly, the ancestors of the culture bearers among the Polynesians, the Okinawans, Taiwanese, non-Jomon Japanese, as well as the Philippinos came from the same place in China across the strait from Taiwan. The land there gradually sinks ~ the people had to learn to use satisfactory boats to continue to live among the islands and raise wheat ~ rice not being capable of being farmed there.
The Sa'ami arrived far earlier!
Excellent explanation. Your postings on such subjects are always so helpful. Thanks.
Wow! I was getting an image of a bunch of people being washed out to sea by a tsumami and then drifting for so long before being deposited in an alien land. Life was really tough in those days.