What does EMACS stand for? Eight Megabytes And Constantly Swapping.
Emacs is a great operating system; it only lacks a decent text editor.
Can you imagine a world where a program originally designed to manipulate documents was extended through a highly dynamic, kind of half-baked interpreted language to the point of underpinning almost every application you interact with on a daily basis and using an order of magnitude or so more resources than are actually necessary?
HA! Amazing. Two editor-related things I always show people on tours of our museum are the meta key on a Symbolics keyboard, and the arrow keys on an ADM3 terminal. (I wrote this comment in vi.)
I also wanted to use more of the coreutils in my workflow to make me a better engineer since they're present on every system while my emacs config is not.