The fact that these tools have stood the extreme test of time is really something.
Another person in the lab came over, invited me to his machine and showed me LaTeX in Emacs. We became friends (he a mathematician, I a zoologist). I bought beer; he brought 'computer wisdom'. Thirty-odd years later, those files are still perfectly reproducible. All of my kid's school reports from elementary onwards... LaTeX.
It's hard to overstress how important is longevity in a toolset.
Side rant on Emacs' keybinds: with orderless and vertico (and marginalia and whichkey) it is almost as fast for me to `M-x dir` as to `C-x d`, and in both cases I get a dired buffer. Aaand, `dired` is magic. History also tells me that it is older than Emacs.
\end{rant}