> Also (3) I don't get, because while I am extremely motivated by intellectual curiosity, I have maybe zero motivation to "develop my intelligence" like it was some kind of fitness thing.
Given the amount of cognitive bias each of us has, I'd say an important part of intellectual curiosity is making effort to learn to think better. I mean, a flat-Earther 9/11-truther astrologer could still claim to be primarily motivated by "intellectual curiosity".
The flat-Earther 9/11-truther astrologer probably really is primarily motivated by "intellectual curiosity", he probably just has poor priors. Which is to say, he's seeing that world as he's seeing it, it's just that something in his lower intellectual foundation is rotten.
The interesting question is whether that specific bit of rotten reasoning is still accessible to alteration after one has passed through that specific phase of neuroplasticity.
Given the amount of cognitive bias each of us has, I'd say an important part of intellectual curiosity is making effort to learn to think better. I mean, a flat-Earther 9/11-truther astrologer could still claim to be primarily motivated by "intellectual curiosity".