Thus it seems that the dislocation [ décalage ] between the connexions and instances in transition periods merely reflects the coexistence of two (or more) modes of production in a single 'simultaneity ', and the dominance of one of them over the other. This confirms the fact that the problems of diachrony, too, must be thought within the problematic of a theoretical 'synchrony': the problems of the transition and of the forms of the transition from one mode of production to another are problems of a more general synchrony than that of the mode of production itself, englobing several systems and their relations.