Why whitespace denotation of blocks doesn't work.

[Courageous]

>     Initially, the indentation thing struck me as weird. My main complaint
> about it is not that it's difficult to maintain proper indentation, but that
> if you're scrolled far down in nested 'if', for instance, it's sometimes
> hard to see which indentation-level is for which 'if'... but then i'll just
> split-my-screen and scroll up.

It would be nice if an editor had a vertical guide, much as some
of the drawing programs do. You can click and drag the guide around,
leaving a vertical line drawn across your editor, allowing you to
move up and down in the file to see what matches that indentation
level.

C/