i think babies starts life like a computer. they have empty variables everywhere in their brain. they need to "define". also they "learn" to define. if you tell them a "tree" is "dog", they'll know tree as a dog. but they'll correct the mistake eventually because human can "judge" and "compare". i think there is a layer between outer world and processor which is "perception". i pity computers and i frighten them. eventually we'll make a thing close to a human. wachowsky's made a film about that, remember?