Jason Self

Jason Self at

It even predates emacs.
Thanks, Jason.  I was vaguely aware of that, but hadn't directly experienced it myself nor done any real historical research, so I didn't want to claim it because I wasn't 100% positive.  But now that I think about it: that must have been the normal development mode on Lisp machines!

Karl Fogel at 2018-09-09T06:31:16Z