The Obama camp hits hard on McCain's inability to remember how many mansions he owns:
Meanwhile, give McCain some credit: Figuring out how many properties he owns is actually incredibly hard. In The Hitchhiker's Guide to the Galaxy, engineers from the future begin building scale model restaurants inside spacecraft in order to power interplanetary travel with the most complicated and powerful engine ever concocted: The Bistromathic Drive, which slips free of the ordinary constraints on calculations by "exploiting the irrational mathematics that apply to numbers on a waiter's cheque pad and groups of people in restaurants." But as Matt is showing, the metaphysics of McCain's real estate holdings may give them a run for their money.
