I was told that this is the place to post this idea:
I would like a file that worked to make you think you are dumber than you actually are. This would create less problems for people who are unable or unwilling to actually dumb down, but would love to have the experience and all the good feelings associated with it. So the file would work to plant a false memory or belief of being smarter at one time, and that you have in fact become dumber. You notice your mistakes more and this gives you pleasure and arouses you, the same with forgetting thing, etc. Each time you masturbate you feel like you are getting dumber and dumber and in time become convinced you are...
The only pitfall I can see is if the listener saw that he or she was using this file and then knew it was not true, but maybe this can be overcome with enough hypnosis?