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A natural measure of correlations in the process is the pairwise correlation \\Pr[\\omega_0,\\omega_t \\in C] - \\Pr[\\omega_0 \\in C]^2. A second natural measure is the probability of the continual occurrence event \\{\\omega_s \\in C, \\forall s\\in [0,t]\\}. We show that for reversible Markov chains, and any event C, pairwise decorrelation of the event C implies a decay of the probability of the continual occurrence event \\{\\omega_s \\in C, \\forall s \\in [0,t]\\} as t\\to\\infty. 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