Part of the reason behind the existence of these sites is --- I believe --- the hope that they will be useful to well-motivated people who want to learn some of

Part of the reason behind the existence of these sites is --- I believe --- the hope that they will be useful to well-motivated people who want to learn some of this stuff themselves. Some of these questions and answers just blow our mind. I can't think of many such on CSTheory yet (it is still quite new), but see this answer (and its question :-) ) on MathOverflow : http://mathoverflow.net/questions/9807/help-me-with-this-proof-drop-a-printed-map-of-the-land-on-the-land-and-there-mus/9833#9833 http://mathoverflow.net/questions/9807/help-me-with-this-pro...