So I had my DNA tested by 23andme.com, and it broadly confirmed what I knew/assumed; I’m mostly of Scandinavian and eastern European stock. I was surprised to learn that I’m 0.3% Ashkenazi Jew, though. Not quite as impressive as Elizabeth Warren’s claim of being 1/16 Cherokee, but still not too shabby. I also have more Neanderthal DNA than 98% of 23andme’s customers. That may explain a few things.
You can check out my ancestry summary here, if anyone’s interested. EDIT 12.24.2020: It appears the link is only useful if you have my login credentials. Duh! I’ll se if I can post a screenshot of my ancestry one of these days.