An experiment is proposed which seems to contradict the no-communication theorem. The reasons why this experiment contradicts the no-communication theorem are analyzed and discussed.
A simple conceptual experiment which seems to violate the general principles of quantum mechanics is reported. The reasoning leading to this contradiction contains a trick which makes the paradox possible. By discussing the failure of the argument the author wishes to draw attention to a fundamental feature of the wave function which is frequently overlooked. Finally, in light of this discussion, a kind of delayed-choice experiment is described, and an analysis of the related issue of complementarity is made.
Retro‐causation has been experimentally verified by Bem and proposed by Kafatos in the form of space‐time non‐locality in the quantum framework. Every theory includes, beyond its specific axioms, the principles of logical communication (logical language), through which it is defined. This communication obeys the Aristotelian logic (Classical Logic), the Leibniz Sufficient Reason Principle, and a hidden axiom, which basically states that there is anterior‐posterior relationship everywhere in communication. By means of a theorem discussed here, it can be proved that the communication mentioned implies contradictory statements, which can only be transcended through silence, i.e. the absence of any statements. Moreover, the breaking of silence is meaningful through the claim for minimum contradictions, which implies the existence of both a logical and an illogical dimension; contradictions refer to causality, implying its opposite, namely retro‐causation, and the anterior posterior axiom, implying space‐time non‐locality. The purpose of this paper is to outline a framework accounting for retro‐causation, through both purely theoretical and reality based points of view.