"Chimps have better short term memory than humans, even on human oriented tasks... Short term memory is an important dimension of intelligence. By Kelly's argument, humans are not smarter than chimps; indeed, he would claim that "smarter than chimpanzee" is a meaningless concept. This is cold comfort to the chimps whose species survive only because we deign to allow it. It is colder comfort still to all those species we have already wiped out. It's also cold comfort to humans who might be worried about being wiped out by machines." -- Human Compatible by Stuart Russell, page 148