Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.
(Douglas Hofstadter - "Gödel, Escher, Bach: An Eternal Golden Braid")
Currently in the middle of reading it! Excellent, so far - even if some of it is a bit above my head (actually, I think I would understand it better if I sat down and wrote out a bunch of the stuff; as is, I am having to do it all "in my head", as the book is my bedtime reading). I'm really enjoying it.
(a hell of a book)
Understatement of the year? Actually, it's likely simpler than "House of Leaves", which one of these days I intend to tackle (I'll probably fail miserably at it, though!)...