Nearly all my icons are by others and shareable - snaffle anything you like! :)
I have been trying to remember where I read this discussion of the Fibonacci numbers, that was basically incorporated into a story - would have been sci-fi, maybe Frederick Pohl's Heechee series? or something totally different, I really have no idea. *facepalm* Anyway, it was very cool and yeah, now that I think back, slightly scary.