That said, there's another problem with comment culture that seems worth mentioning. I seem to have gotten good at expressing thoughts that fit in a comment. That gives me a false sense of competence; but when I need to write something longer, like a blog post several pages long, the structure just completely falls apart. And writing a book I can't even imagine. It seems writing at different lengths is essentially different skills, which need to be practiced separately. And if that's the case, then as Annie Dillard says, why not just write something long to begin with? I'm actually thinking of that now.