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so here's something I've been wondering,

that leach that they took the nervous system out of, how old was it? had it lived a full leach life? had leach experiences? could those leach experiences have been responsable for the activity of its nervous system after it was removed? if the leachhad been just freshly born when its nervous system had been removed, or if somehow a leach system was cloned and never put in a leach body would it still produce output? in more general terms, can a nervous system produce output in the complete absense of any previous input? If so, then what would be the purpose of learning other than to standardize the output of all of our brains?