EDIT: http://book.personalmba.com/planning-fallacy/
“Hofstadter’s Law: it always takes longer than you expect, even when you take into account Hofstadter’s Law.” — Douglas Hofstadter, cognitive scientist and Pulitzer Prize–winning author of Gödel, Escher, Bach: An Eternal Golden Braid
EDIT: http://book.personalmba.com/planning-fallacy/
“Hofstadter’s Law: it always takes longer than you expect, even when you take into account Hofstadter’s Law.” — Douglas Hofstadter, cognitive scientist and Pulitzer Prize–winning author of Gödel, Escher, Bach: An Eternal Golden Braid