ARGUMENT
Keanu is dum.
REBUTTAL
You're talking about the guy who's probably the most well-read actor in Hollywood, obsessed with Shakespeare, brilliant at chess, reputedly has an IQ of over 150 (the actual value is claimed to be 160, but efforts to track down the original source have proved futile), and who has been repeatedly described by those who know him as very, very intelligent.
If you want some proof, get over here.