ok, comes to be thinking, what if i am to lead emacs.
ok, first thing, axe all platforms other than mac, windows, linux.
then, axe, without mercy, any deprecated or obsolete code that's more than 10 years old.
then, axe, the common lisp fuck in emacs lisp. Aggressively suck in the newer replacement from melpa people.
then, axe, anything complex, and anything approaches of a hack.
ok, char limit. something like that.