The 'least convenient possible world' might be relevant too. I translated the verbal self interrogation as something that would elicit responses along the lines of "would doing this thing distinguish one as an idiot?" In practice the question probably would be useful. In fact, in practice only an idiot would really reverse the stupidity of an idiot when asking that question of themselves. Breath, eat, etc.

I won't ask what that means, because I could presumably easily find out by searching; but I won't search, because I don't care enough (and I'm already here as a distraction from what I meant to be doing).