Actually Useful Horoscopes contains very few actual predictions. It’s pretty much all generic good advice like “You should be sure to change your passwords now and then” or “Set a good precedent for yourself today.”
Regarding the original post, I don’t see how reading a useful self-fulfilling prediction involves irrational thought.
Your example acually exists. It’s called actually useful horoscopes. It’s creators are from Less Wrong.
That’s pretty interesting. I wonder what the authors do with the statistics they’re gathering.
See Rationalist horoscopes: A low-hanging utility generator
Actually Useful Horoscopes contains very few actual predictions. It’s pretty much all generic good advice like “You should be sure to change your passwords now and then” or “Set a good precedent for yourself today.”
Regarding the original post, I don’t see how reading a useful self-fulfilling prediction involves irrational thought.