I am not sure how one would advance such a scientific thesis without getting laughed at.
One body, one set of blue-eye genes. What are the odds, if some early person had the first ones, of actually finding the body of that person?
I was thinking that too. Could just be a person who had a Scandinavian parent and an African parent.
It was literary license meant in a metaphorical sense — he was among the first, or his tribe was among the first.