Artificial intelligence, or AI, has come pretty far in the last few years - much more then anyone really expected it would - and yet somehow, we seem to be just as far from truly intelligent systems as we ever were. No doubt, the great author Isaac Asimov would be impressed with what we have managed to accomplish, especially considering how many of his predictions have come true. However, we still haven’t got any positronic brains, or thinking machines such as he suggested.