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!)
I am not a metabolic mutant. There are plenty of people in the world who cannot seem to lose weight, and they aren't all weak-willed scum, and it's not because they just haven't tried your favorite diet.
The world is full of metabolic diversity. The fortunate who do not appreciate this are the metabolically privileged. That they can lose weight with an effort causes them to be unfortunately deluded about what is going on.
This seems somewhat unfair. There are a handful of diets that work on a broad variety of people, such that the prior any one will work for a particular person is higher than a novel diet like Shangri-La. And so unless you've tried slow carb/ketogenic, intermittent fasting, 30g of protein for breakfast, and ECA stacks and none of them worked, it seems like you're updating too far in the direction of "all diets don't work for me" from the evidence that "diet X didn't work for me.&q... (read more)