With faster computers, TeXmacs came along to give you a truely WYSIWYG TeX-like real-time typesetter. What you see while editing is exactly what you get in the output. Some clever programming made this possible. But with even faster computers, BaKoMa TeX Word gives us truely WYSIWYG LaTeX by simply running TeX in the background -- all that TeXmacs incremental cleverness is not so important when your computer is really fast and your document is not that long (e.g., for conference papers).
So basically, faster computers made TeXmacs possible but even faster computers may make it unnecessary!
So basically, faster computers made TeXmacs possible but even faster computers may make it unnecessary!