Primer explained ...
xkcd.com
xkcd.com
So then I saw "Primer" and I thought - that's my kind of film/book, so I've gone to find out more about it. There are explanations on the web, but now I want to see the film.
Obligatory connection to hacking/web: Would your web site benefit from a diagram like this, to assist those whose thought processes aren't the same as the sheeple? Is that niche market worth worrying about? Your early adopters might think in that sort of graphical manner.