First of all, you quote an old study with a very small dataset. We already know by now, that before going out of Africa at least two major genetic branches developed in addition to early Eurasians. At K=4 and clustering by genetic distance, they would likely represent two clusters while the rest of Africa would fall into one of remaining two. Not even close to what average American would understand.
Second, even if in the study you use, it’s „east Asian“. Where you would put Indians? How about southeast Asian people with black skin?
Why this clustering is even necessary when the rest of the world is doing fine without it?
Second, even if in the study you use, it’s „east Asian“. Where you would put Indians? How about southeast Asian people with black skin? Why this clustering is even necessary when the rest of the world is doing fine without it?