Well. That's definitely the most interesting thing you'll read today on lecture theory. I'll just add that I've never been able to pay attention in lectures -- I almost failed out of high school because of it -- and always found that reading on my own was much more useful. You can read faster than a professor can talk, and you can reread what you don't understand. The problem is, reading on your own often confines you to primary source texts, and the only critical analysis available to a student is from the professor's lecture. Why it wouldn't be better for the professor to write that lecture out, let students read it on their own, then reserve the whole of class time for dialogue and discussion has always baffled me.