On 26/02/2008, Mike Tintner <[EMAIL PROTECTED]> wrote: > The idea that an AGI can symbolically encode all the knowledge, and perform > all the thinking, necessary to produce, say, a golf swing, let alone play a > symphony, is a pure fantasy. Our system keeps that knowledge and thinking > largely in the motor areas of the brain and body, because that's where it > HAS to be.
Well in the case of a golf swing you might have some high level reasoning, such as "I wanna move the ball, so I'm gonna try to hit it with this big hunka metal". That might then get translated into a kind of plan by the premotor cortex, such as grasping the handle in a certain kind of way, shuffling your feet, looking down at the ball. This plan might be represented in motor space as a set of heirachically organised vectors which act as attractors for lower level systems controlling tensioning of individual muscles. In the final act the outcome would be a combination of the physical properties of the system combined with feedback control of muscles. The symbols in this kind of system are really flags of convenience. Much knowledge is probably represented in a largely modality specific way only a few abstractions away from the raw data of experience. This can then be cross indexed via the thalamus and if necessary associated with linguistic events. It's this linguistic tagging of constellations of modality specific representations which is the real power of the human brain, since it can permit arbitrary configurations to be conjured up (literally re-membered) in a manner which is reasonably efficient from an information compression perspective. ------------------------------------------- agi Archives: http://www.listbox.com/member/archive/303/=now RSS Feed: http://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: http://www.listbox.com/member/?member_id=8660244&id_secret=95818715-a78a9b Powered by Listbox: http://www.listbox.com
