That's the thing - I don't know! But it's such a HUGE WIN technique.

And a serious susceptibility, if you're introduced to it by the Renfields of a parasitic meme. And even if you already have it, if they get in through your awareness of the power of the idea of self-improvement.

I'm also wondering at other techniques - such as how to teach the notion of rationality by starting with small-scale instrumental rationality and expanding from there. I have no idea if that would work, but it sounds plausible. Of course, that can lead to the Litany of the Politician: "If believing this will get me what I want, then I want to believe this." I expect I'd need to come up with a pile of this stuff then actually test it on actual people.