1500 words Christopher Langan is purported to have the highest IQ in the world, at 195—though comparisons to Wittgenstein (“estimated IQ” of 190), da Vinci, and Descartes on their “IQs” are unfounded. He and others are responsible for starting the high IQ society the Mega foundation for people with IQs of 164 or above. For … Continue reading The “World’s Smartest Man” Christopher Langan on Koko the Gorilla’s IQ