“One of the »most dangerous signals you could possibly receive would not be about space, situations in space, or anything similar. Rather, it would be comprised of a retrocausal signal from the future, and its ‘fingerprint’ would comprise evidence of the sudden desychronization of various temporal characteristics, and their otherwise common coherence. Those sensitive to this would realize the danger, but nearly none of them would be capable of articulating it… in part because our common language treats time as singular, universal, and flowing from the past into the present, and from there to the future. None of our existing analogies or metaphors are capable of suggesting retrocausality… or demonstrating the strange dimensionalities of temporal manifolds… and what happens to them when their coherence or ‘harmony’ undergoes sudden degradation…”

— an anonymous informant