Then there's also the other handful of people, at least from my experiences, who claim to be 'street smart', which has erupted as an faux alternative to assert your intelligence if you're not exactly up-to-par with your fellow classmates. The original 'intelligence' I mentioned before has been crowned 'book smart'. What I see is that many people associate one another in one of these black or white areas. But what about the gray areas? Can you be getting a 3.8 GPA and still be 'street smart'? To answer this question, we should look at intelligence from all points of view.
Intelligence is a very vague subject. The possibilities for intelligence are broad and never-ending. I'd like to think that everyone can be intelligent in their own ways. A scientist could be intelligent in the field of biology or astronomy, and he may have 10x as much knowledge as our president in that field. So does that mean the president is not qualified to run the country, since there are clearly others who are smarter than him in different areas? Probably not. Intelligence is relative. Just as a physicist could explain quantum mechanics to you in a heartbeat, a quarterback could explain a flea flicker play to you in another heartbeat.
I've seen people share their expertise with others, especially in areas where others may have only lightly touched upon, and the other person is awed. If the other person was shocked or still cannot comprehend that knowledge, he assumes the teller of this knowledge is intelligent. It seems to me that this has existed for hundreds of years. Think about philosophers. Why did people regard them as brilliant? They posed questions no one had the answers to. Often philosophers said that intelligence was knowing that you don't know. So if many philosophers knew very little, and simply asked questions, why were they regarded as the most intelligent people in the world? They left people dumbfounded. I'd be curious how people would answer to the question, "What is intelligence?" To me, it's all relative.