Yeah, actually what he's saying is applicable at a wide range of IQ levels etc. Even if you're not a genius you sure can be the most knowledgable person in town

Yeah, actually what he's saying is applicable at a wide range of IQ levels etc. Even if you're not a genius you sure can be the most knowledgable person in town for x. Just that x can't be too IQ demanding. There are tons of people having good careers being this person in for example infrastructure construction(the physical version).