I’m sure you are right. There was probably a lot of unintentional “experimentation” going on. Those that headed in the wrong direction, say toward the hot, sterile desert, perished. You could say that was early Darwinism at work. Those that moved in the right direction toward a more hospitable climate and more food thrived.
That still doesn’t explain why people would leave fertile areas and head north toward Siberia to cross the land bridge. That’s a real head scratcher. Maybe they developed an affinity for seal blubber.
That Land Bridge always
seemed a bit of a Stretch.
It also appears it started
with That “Tower of Babel”
Dispersal by God which would
have got My Tail in Gear!
Building a boat and Heading Out
would be Job One,,,
Where?
Don’t care, I’m Rowing!
A taste for mammoth steaks?