S-matrix,Feynman zigzag and Einstein correlation

An inherent binding between Einstein correlations and the S-matrix formalism entails full relativistic covariance, complete time symmetry, and spacelike connexions via Feynman zigzags. The relay is in the past for predictive correlations between future measurements, and in the future for retrodictive correlations between past preparations (Pflegor and Mandel).An analogy and a partial binding exist between intrinsic symmetry together with factlike asymmetry of (1) “blind statistical” prediction and retrodiction (retarded and advanced waves, information as cognizance and as will) and (2) positive and negative frequencies (particles and antiparticles). As advanced waves are required for completeness of expansions, “antiphysics” obeying blind statistical retrodiction should show up in appropriate contexts, “parapsychology” being submitted as one of them.