Edgar, a guy with one KO win and two TKOs, is going to knock out one of the best strikers in MMA who has only be stopped once via submission?
I don't care if Edgar out-wrestled Penn, what does that have to do with him knocking out Aldo on the feet?
Edgar is clearly the best fighter that Aldo has ever fought.
He has the boxing and the wrestling to tire Aldo out and stop him in the later rounds, he will have more power coming down to his natural weight. If he can get BJ Penn down, he can get Aldo down and he will.