I've been watching the videos from 2012, and the professor sprinkles that humor throughout the lectures, and done well in that its not annoying (to me at least)

I've been watching the videos from 2012, and the professor sprinkles that humor throughout the lectures, and done well in that its not annoying (to me at least). Update: seems the author talks about Pyret/Racket in this thread https://news.ycombinator.com/item?id=6702563 https://news.ycombinator.com/item?id=6702563