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It 's likely that in the search for the solution to this puzzle ( given an arbitrary starting state ) , you might start off by moving some of the pieces around to get some of them in their end positions . Any U.S. - developed knowledge grid would focus on what the United States fears most ( e.g ., arms of a rogue state ) , pass over irrelevancies ( e.g ., political dissidents ) , and look away from the United States ' abundance ( e.g ., satellites , stealth , submarines ) . The US also voted annually against similar General Assembly resolutions ( along with Israel , sometimes one or another client state ) , and otherwise blocked all efforts at a peaceful resolution of the conflict initiated by Europe , the Arab states , or the PLO . David 's interests include manifold learning , reinforcement learning ( especially predictive representations of state ) , support-vector methods , massively parallel processing , perception , and optimal control . When the original program was needed again ( e.g ., taken out of wait state ) , it would be paged back from disk into memory and executed .