I like what you're hinting at here. In my case, the "IDE" is vim running in a terminal window, with another terminal window to the right where I run git, grep,

I like what you're hinting at here. In my case, the "IDE" is vim running in a terminal window, with another terminal window to the right where I run git, grep, and tests. Nevertheless, even in this austere environment I could imagine a vim plugin which would let me wrap some sort of bracketed enclosures around piece of text, possibly nested, with the ability to expand and contract with the press of single key. Without even searching, I'll estimate the probability of that already existing as 85%. Problem is, anyone viewing the code in a normal text display, e.g. on github or plain text editor, would see all the excruciating detail, all the time. But it's an interesting idea. Perhaps instead of the expand/collapse, I could just use links. Vim users should note that when you're sitting on a word, if you type "gf" it will Go to that File (i.e. open it up right there), and you can use "o" and "i" the way you use "Back" and "Forward" in a browser.