By the way: to all the people who wrote asking why the body font on the blog has changed, I don't know. I was as surprised as you when I saw it after our weekly site update Thursday night. However, web designers, like God, move in mysterious ways, and I'm sure there were some deeply-considered aesthetic reasons for making the change. Unfortunately, I don't know what those reasons are, since for excellent and obvious reasons,1 I'm not consulted about this stuff. Perhaps some member of our design team will see this and let us know in comments.
1Principally that I have about the artistic taste of a seven-year-old.