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Our simulation strategy is Las Vegas ( ie , it may never fail , due to backtracking operations to robustly stored instances of the computation , in case of locally unrecoverrable situations ) . The cleansing pouch is a variation of fibered cloths ; however , it can also be used as a metered-delivery system for skin-cleansing and skin-conditioning agents . When it does n't , it 's a disappointment for everyone . But from the viewpoint of a one-celled creature , it may be that we and our multicellular friends are just evolution 's newest creation .