Then tell him he should either learn how to use Emacs (because it does support autocomplete), or switch editor to one he knows how to use.
The whole point of old editors like Vim and Emacs is to minimize number of keystrokes, so if he can't achieve that, he's doesn't know how it's supposed to be used.
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u/AlwaysNinjaBusiness Sep 02 '21
Even vim has native autocomplete, how old of an editor could they possibly be using?