Earlier quoted context omitted.
Niche experts often seem smarter. I've known a number of PhD students who are fascinating in their narrow chosen field, but weren't much good once you took the big fish out of the little pond. None of those folks were passionate generalists, though.
Perhaps it's useful (for what? I don't know, but at maybe for discussion) to distinguish between smart: how much you know intelligent: how quickly you can learn wisdom: the perspective you have about everything you have learned This works well with hat I've observed: intelligent people who are not smart, smart people who seem rather "slow," and that surprisingly wise person you always seem to come across who seems to…
Other than the three types you mentioned, I come across another type. They don't learn new stuffs that quickly. They might look dumb when they are introduced to new things. However, given more time, they are able to think and dig really deep.
Then it occurred to me that they were already thinking wider and deeper from the beginning. Because the knowledges conveyed in an introductory scenario is so limited, they have more questions and they get confused. They have no intention to hide their confusion. Once they acquire more knowledges in the field and organize the pieces into a system, they start showing how deep their thoughts have gone to.