Alan, Welcome back! I am not inclined to guessing, but this time I am going to make a guess about your possible concern. You think I will claim that no spatial intelligence is needed to solve the peg problem. I will not.
In plan B, as outlined in my recent posting, inference in the human brain is not used. Instead, inference is installed and used on the computer. This does not mean that inference "knows" everything. Inference works from knowledge, just as the child does. The child acquires that knowledge by learning from his "sensors", mostly vision and sensory-motor nerves in this case, and using his inference to derive meaning from the observation. Eventually, he will "know" what a peg is, and how to recognize one, and how to know if it is square or round and match it with a hole, and how to control his muscles to do all that. The inference does all that by finding associations. The child does not need a programmer to do all that. With the inference and the computer, it is the same. The robot will need a camera and a mechanical arm with position sensors besides the inference. But it will NOT need a program. It will have to learn step by step, from its sensors. Knowledge is still necessary, but it comes as input, not as program. In the case of the retina, the situation is a little different. You may have seen my recent post about the blind climber who can see enough to climb a mountain with a camera and electrodes attached to his togue. There is no retina, no optical nerve, not even a vision-specific area of the brain involved there. This confirms what I already knew from my experience with causal sets. The anatomical details about the retina or the optical nerves, or left-right and upside down, are not needed at all. Not even as input. We would be living in a fantasy world if we believed that anyone can understand or explain or prove or guarantee all that. I sure can't. Because of that, I have proposed a practical approach. First, before even starting anything, we need a computer with the inference installed on it. Second, a simple model of a retina, just a camera with a few hundred pixels, followed with the inference. Show it an image, see what it does. Does it compress the image as the retina does? By how much? Compare with the real retina. If a match is found, bingo! I am sure it will. The wheels I am trying to set in motion even for this super-simplified test are so heavy that the pegs don't even appear in the picture. Yet. Sergio But please stop diagnosing me. I don't mind myself if you do, but not in AGI. In AGI, even if I disappeared, the inference would still be there. Sergio and inference are not the same. -----Original Message----- From: Alan Grimes [mailto:[email protected]] Sent: Friday, July 13, 2012 10:03 AM To: AGI Subject: Re: [agi] Emergent "Inference"? Having diagnosed Sergio's crackpotitis, I have made a point of not talking to him. =P But here's a question: Lets say you had a kiddie's play room. In the room you had toys. One of the toys consisted of a set of pegs and a board with holes in it. The task is to find the square peg and put it in the correct hole. This requires a fair amount of spatial intelligence. The peg must be identified, the hand must be directed to grasp it, rotate it, lift it into position using nothing but muscle and visual feedback (trickier than it sounds due to the kinetics of the arm). ; position it in the correct orientation over the correct hole (which must also be identified), and then inserted. Since you fancy yourself an AGI theorist, design a system that is capable of doing that. -- E T F N H E D E D Powers are not rights. ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/18883996-f0d58d57 Modify Your Subscription: https://www.listbox.com/member/?&; d2 Powered by Listbox: http://www.listbox.com ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/21088071-c97d2393 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-2484a968 Powered by Listbox: http://www.listbox.com
