Very interesting ( for a number of reasons ) They sure have constructed a lot of a story around one little bone.
Siberia, 30 to 40 thousand years ago must still have been a rough place to live compared to the balmy
climes where they say all hominids started at.
AND . . .If that was home 30K yrs ago, there would have been plenty of oppurtunity to come across the land bridge and be the first ones into N America.