That's descended from its terminal escape-sequence optimizer, the bit of code that transforms one screen state into another screen state in the least number of

That's descended from its terminal escape-sequence optimizer, the bit of code that transforms one screen state into another screen state in the least number of terminal commands possible. (That display code was later updated to support graphical output like X11 by treating it as sort of a special case of a terminal.) I think I'd rather have that than the state of the art in "modern" TUIs, which is to do the opposite and treat the terminal as a special case of React canvas, redrawing the whole damn thing every time there is a keystroke or other action by you or the program. You can see Claude Code redraw itself all the time; it's maddening. And the program would absolutely be unusable on, say, a 9600bps connection, whereas Emacs could still get by on that. This is from the company that retains the best and brightest programmers, and will have self-improving runaway genius AI by Christmas, for realsies this time.