Exwm (Emacs X Window Manager) is a window manager for X that is built entirely on top of Emacs. While it allows users to leverage the powerful features of Emacs for window management and application launching, there are some interesting user comments regarding the potential of Emacs itself. One user provocatively suggests that true innovation would involve Emacs taking control of the entire system by running as PID 1 and handling significant system processes like managing filesystems and daemons. This reflects a curiosity about the capabilities of Emacs and the potential for expansion beyond its traditional role as a text editor.