There's certainly no reason to suppose that natural selection could be capable of producing truly general intelligence. And I'm a fan of the theory that says ou

There's certainly no reason to suppose that natural selection could be capable of producing truly general intelligence. And I'm a fan of the theory that says our brains are too simple to be able to truly understand how our own brains work. And no matter how increasingly complex our brains became, that would probably always be true. But it is remarkable how much we do seem to be capable of - certainly far more than was ever necessary for us to compete against other species for survival.