is "vi" worth learning in 2022?

[MG]

Vi and Vim use curses. Its ed (or ex) that you would likely need to be using for your ancient 80x25 hardware terminal.

That's kind of the point. If you have curses, you don't need an editor with hidden states and 300 documented keyboard sequences to edit a line of text. I know better things to remember.
The idea of vi in UNIX systems is to provide an editor that works under as much as possible hardware combinations but that doesn't make it efficient for everything. Only when nothing else works.

 

[drhowarddrfine]

MG your statement is both exaggeration while also pointing to the advantage of vi and why all professionals know and use it.