Earlier quoted context omitted.
> I think you can use whatever to do Lisp. I'm not sure about that. You need an editor that automatically matches parens and other paired delimiters and keeps them balanced, like paredit.
I did kind of make the assumption that you'd have a code editor that has some form of paren highlighting, at least, though I've never actually found this to be a bigger problem in Lisp than other languages.
It's not paren highlighting: it's about making it impossible to create unbalanced parens.