what’s your prior for my statement being true of a randomly chosen person
Sufficiently close to zero.
what’s your prior for a randomly chosen statement I make about my preferences being true
Depends on the meaning of “true”. In the meaning of “you believe that at the moment”, my prior is fairly high—that is, I don’t think you’re playing games here. In the meaning of “you will choose that when you will actually have to choose” my prior is noticeably lower—I’m not willing to assume your picture of yourself is correct.
Sufficiently close to zero.
Depends on the meaning of “true”. In the meaning of “you believe that at the moment”, my prior is fairly high—that is, I don’t think you’re playing games here. In the meaning of “you will choose that when you will actually have to choose” my prior is noticeably lower—I’m not willing to assume your picture of yourself is correct.
(nods) cool, that’s what I figured initially, but it seemed worth confirming.