There's no reason a TUI can't give you "real autocompletion". Vim does pretty well in most cases.
> Or see-through file outline/minimap like the one in sublime text.
I personally don't see the benefit of that, but you're right that you can't see a zoomed-out version of your code in a TUI.
> Or better markers for things like region folds, column positions, matching braces, highlights,
All of those things are supported by Vim and can be done in a TUI. As for "syntax highlighters" that decide to italicise code, I don't really consider that a feature.
There's no reason a TUI can't give you "real autocompletion". Vim does pretty well in most cases.
> Or see-through file outline/minimap like the one in sublime text.
I personally don't see the benefit of that, but you're right that you can't see a zoomed-out version of your code in a TUI.
> Or better markers for things like region folds, column positions, matching braces, highlights,
All of those things are supported by Vim and can be done in a TUI. As for "syntax highlighters" that decide to italicise code, I don't really consider that a feature.