"23andMe’s ancestry results were the most confounding of all. It found that I was only 3 percent Scandanavian, a number that, based on my recent family history, I know is flatly wrong. It also found I was only 5.5 percent Middle Eastern and a whopping 62.6 percent Northwestern European."

I get how their statistical models come up with those numbers, but I have a very hard time understanding how any reasonable person would put this much stock in the interpretation. "3% Scandinavian?" "Flatly wrong?" Where does the author think Scandinavia is, if not north-western Europe? Does the author think the borders of "Scandinavia" were closed in 1000CE, with no interaction with the rest of Europe?