No, people just find any example they can of a person with good grades or a reputation for being "smart" being wrong about something and harp on it. Some people don't know some stuff, it's that simple, "smart" people are no exception. Most of the people I knew in high school who got good grades were generally intelligent and competent in many situations, but I know that because I knew them instead of just following a silly pre-conceived notion that they MUST be dumb in some way.
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We clasped our hands, our hands in praise of a conquerors right to tyranny