[Hermlord]

True, it doesn't make you stupid per se, just uneducated. But I bet there's a really high correlation here. Most smart people will naturally endeavor to educate themselves. These are not obscure concepts from highly specialized fields, but foundations of modern science. Yes, there are highly intelligent people from highly disadvantaged circumstances who don't have access to this kind of information, but in the U.S. at least, this is a rare exception.

"Education" should not stop with what you need to perform a job and produce in some economic sense. For one, innovation often comes from making connections with seemingly disparate fields. Similarly, being well-rounded makes you more valuable to the general societal network (the "Great Conversation"). Most importantly though, these ideas are beautiful and rank among the highest achievements of human thought. Science is obviously not Art, but they can both serve to elevate.

Typically, the type of person who says "I'd rather not learn that, I don't need it" is not usually the type of person I want to waste my time on.