Beringia or Atlantis?

The standard model of New World migration still stands – people left Asia, crossed the Beringia Land Bridge, and populated the Americas as they headed south.
According to National Geographic, DNA sequence studies show:
… humans heading east after leaving Asia about 40,000 years ago were blocked by two huge glaciers that met at present-day Alaska.With no way forward, the humans settled on the land bridge, called Beringia, that connected Asia and North America.
There they remained for 20,000 years.
It’s a bit of a stretch, but perhaps either:
a) They didn’t stay in Beringia, but established Atlantis instead
b) Beringia is the location of Atlantis
I figure there have been few or none undersea explorations in this area that could reveal an ancient advanced civilization. And Plato’s description of Atlantis kinda fits:
…you might pass to the whole of the opposite continent which surrounded the true ocean …and the surrounding land may be most truly called a boundless continent
If Beringia meant that Asia and America were a single continent, and given that Beringia is directly opposite Europe, Plato’s words could almost be describing this area.
It is not a new idea that the Americas were founded by refugees from Atlantis. So maybe speculative ideas and scientifc fact can meet in the middle – Beringia was Atlantis??
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