The point is that you want to have a system that is responsive.

You can't prove anything about a program written in C or FØRTRAN. It's really just Peek and Poke with some syntactic sugar.

But no, I don't generally have trouble with spelling mistakes.

Take responsibility for the things you build and invent.

I think editors have to come out of a certain kind of community.

That lack of programmability is probably what ultimately will doom vi. It can't extend its domain.

There are a couple of people in the world who can really program in C or FØRTRAN. They write more code in less time than it takes for other programmers. Most programmers aren't that good. The problem is that those few programmers who crank out code aren't interested in maintaining it.