I have been thinking about this recently. Say two quantum particles, or two clusters of quantum particles, exist in the same universe. 1 is on, for lack of a better term, one side of the universe, one on the other. They are entangled. Because of the distance between them, one is in the future and one is in the past of the observer, who is in the middle, and can somehow see both of them. What would happen in one of the particles moved. because they are entangled they would be moving at the same time, but would the observer see them move at the same time, or would he see one move before the other?