Multics is no longer produced or offered for sale; Honeywell no longer even makes computers. People edit on computers on their desktop so cheap and fast that not only do redisplay algorithms no longer matter, but the whole idea of autonomous redisplay in a display editor is no longer a given (although autonomous redisplay’s illustrious child, WYSIWYG, is now the standard paradigm of the industry.). There is now no other kind of editor besides what we then called the “video editor”. Thus, all of the battles, acrimony, and invidious or arrogant comparisons in what follows are finished and done with, and to be viewed in the context of 1979 – this is a historical document about Multics and the evolution of an editor. It is part of the histories of Multics, of Emacs, and of Lisp.
http://www.multicians.org/mepap.html