Very interesting- while I definitely got tranced, which is fun in itself, the instructions to forget numbers and get worse at maths didn't affect me at all. That's a shame because it would have been really cool to experience, but I enjoyed it all the same.
I will second other peoples' comments about guessing numbers though- a couple of times I forgot what number I'd added up to when I got dropped and woken up during play, at which point I just clicked random cards until I got a winning number. That earned me some REALLY high scores, so maybe having a cap might be a good idea.