The Falsehood of IQ Theory

David Deutsch: IQ theory could have died out. But the idea of IQ theory was corroborated, which is just a fancy word for it survived a test that could have refuted it. To say that Brett's theory makes the same prediction as IQ theory in this case, just is not true. He would have exalted that he would have said, Oh my gosh, see we've disproven IQ theory our competitor. If his theory actually does accept all possible outcomes like that, if he's right, then it falls into the category of communism.