How does someone as stupid as Maher know when someone is stupider than him?
He is correct however.
“How does someone as stupid as Maher know when someone is stupider than him?”
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Maybe the same way this man http://www.youtube.com/watch?v=xv_WJYckpPQ knows when he meets someone taller, the thing about it though is that it has never happened yet and possibly never will.