Hi, I forget how much cool stuff is on the wiki. I like to go in every once in a while and just browse around. Funny how I used to browse the 'net for no good reason. Now I browse the wiki... presumably for good reason. Anyway, I found this neat entry by Dr Z about the invisible gorilla. If have haven't see it before or it's been a long time check it out. Here's a link to the wiki page: The Invisible Gorilla There are some really good learning points by Dr Z after the video.