Claim: One way in which instrumental and epistemic rationality diverge is with self-fulfilling prophecies:
(example: all your data says that you will be turned down when asking for a date. You rationally believe that you will be turned down by a date, and every time you ask for a date you are turned down. However, if you were to switch this belief to the fact you would be enthusiastically accepted when asking for a date, this would create a situation where you were in fact enthusiastically accepted.)
Claim: One way in which instrumental and epistemic rationality diverge is with self-fulfilling prophecies:
(example: all your data says that you will be turned down when asking for a date. You rationally believe that you will be turned down by a date, and every time you ask for a date you are turned down. However, if you were to switch this belief to the fact you would be enthusiastically accepted when asking for a date, this would create a situation where you were in fact enthusiastically accepted.)
I feel like it’s unlikely that any of these would be called out for, but I could be too confident of myself.