Follow-up to: Boring Advice Repository
Many practical problems in instrumental rationality appear to be wide open. Two I've been annoyed by recently are "what should I eat?" and "how should I exercise?" However, some appear to be more or less solved. For example, various mnemonic techniques like memory palaces, along with spaced repetition, seem to more or less solve the problem of memorization.
I would like people to use this thread to post other examples of solved problems in instrumental rationality. I'm pretty sure you all collectively know good examples; there's a comment I can't find from a user who said something like "taking a flattering photograph of yourself is a solved problem," and it's likely that there are other useful examples like this that aren't common knowledge. Err on the side of posting solutions which may not be universal but are still likely to be helpful to many people.
(This thread is allowed to not be boring! Go wild!)
That's a good point; I guess those are hard to ask directly. Though maybe you can still ask a variant of it if you're careful and kick into their abstract reasoning? Maybe something like "Oh my gosh, friend, I feel so insecure around person because they're more successful than me! Does that ever happen to you successful people?" Of course, they might answer the way they wish they could answer and keep acting weird around you anyway.
Though, I feel like that's a question you half-know the answer to before you ask. Are there situations where knowing the answer to a status-related question is important for making a decision and guessing wrong has a high penalty?
uh...every situation?