And now for something completely different

I love this language note in the middle of an article.

Really, I'm not joking. (Well, OK, it would work better to the side instead of interrupting the story. But work with it.)

It's like sidebars to a really interesting story. You can move your eyes a couple of inches to find fascinating background without interrupting your flow; you only drift when you're ready.

It reminds me of some of the better textbooks in school, which isn't bad. People read papers because they are curious. And everyone likes to learn new things now and again.