I went with Tycho Brahe, a 15th century astronomer, famous as a scientist for his measurements of the celestial bodies on our solar system. Without his work we would never have known how planets move.
The penultimate question was, "does he have pointy ears?"
It already knew he was a real human scientist, how the fuck could he have pointy ears!?
More importantly: how the fuck does him not having pointy ears mean it was Tycho!!!!?!??!?!?!
EDIT: It couldn't get the Fruit Fucker from Penny Arcade!!! Yeah!