If your world changed would you recognize it? All of us like to believe we would. Unfortunately, this isn't true … as the older gentlemen in this video demonstrates:


(Note: It was because of such insights that Dan Simons' book, The Invisible Gorilla, made my list of the Top Ten Books on Unlearning for 2010.)

Interested in other door-related unlearning foolishness? Check out your math skills with this old post:

Unlearning Common Sense