of their pets, what kind of food they like and you've got to recall as much of that as possible. >> what are the techniques that you studied? what are the tricks you were able to use to expand the use of your brain and your memory? >> it turns out there is a whole host of techniques invented 2,500 years ago in sane shent greece, same medieval scholars used to memorize entirely books which have been kind of forgotten about except they are used by the "mental athletes" to compete in this contest called the u.s. memory championship. >> so what are these forgotten techniques? didn't i learn this in high school or college? or did i and i just don't remember? >> once upon a time students were taught this stuff. noju wt meerut w toembeit e he tchquis called