Reading a paper on spam filters, and the difficulties of stopping the latest email spam, the "gotcha" based pictures with so much color and visual trash that the OCR (Optical character Recognition)programs think it's just a picture, and can't read the text. Smarter and smarter pattern recognition neural net based programs are being developed to sort the spam pictures from real ones.
Then I read Susan Blakemore's chapter on recognizing states of altered consciousness, and how difficult it is to tell one state from another, and that perhaps PET (Positron Emission Tomography) scan movies might be used to look for characteristic patterns of sleep, wakefulness, OOBE's (out of body experiences), sleep paralysis, and drug-altered states: alcohol, cocaine, LSD, ecstasy, and caffeine, retardation, testosterone, oxytocin (mommy hormone), lying, singing, and so on.
Then I read the recommended diary about Bush's missing MBA thesis and a little light went on in my head!
Wouldn't it be fun to have PET movies of Bush's Brain, and look at them with spam pattern recognition programs, and try to figure out what's going on?