how much money (or other utility-bearing fruit) would you demand (or pay Scott) to take a drug which lowered your IQ by x pts?

Here's the funny thing: given who I am now, I would not pay to have my IQ lowered, and indeed would pay good money to avoid having it lowered, or even to have it raised. But I would also pay to have been, since early childhood, the sort of person who didn't have such an intelligence-centric set of priorities. I'm not transitive in my preferences; I don't want to want what I want.