I have a friend who's just had brain surgery to remove a tumor (second attempt). And he may have lost all or some of his vision in the process.
Times like this make me wish I'd decided to be a doctor instead of a programmer. What am I going to do, write him a Perl script to fix his sight? Not that being a doctor would be of much more help, most likely.
And yes, I saw that guy's presentation as OSCON 2001, and yes, it was super-cool, but I still want a goddamn magic fucking wand.