I once read an interview with Bill Joy where he was talking about his creation of the vi editor. He said that it was really necessary because, at Berkeley, he was on a very slow connection and the rather heavy emacs load / execute time was just a killer.
So yesterday while I was sitting in ballroom 19AB and each additional laptop brought the available bandwidth from a garden hose to a swizzle-stick, I was able to understand the wisdom.
34G 3w 5cw ESC
5j DD :wq!