The non-locality aspect of quantum physics is tough enough to get a grasp of, but as a reminder, if you entangle a couple photons and separate them. Observation of one in location A will alter the state of the other in location B, which can be quite far away.
The notion of non-temporal entanglement is weirder. This Aeon feature by Sally Davies does a great job of explaining it. But if time and space are all relative to your frame of reference at that particular instance, it makes me really begin to seriously consider if we are now exposing the deep structures of an infinitely complex simulation in which we are all participating.
Not one of of the usual thoughts that cross my brain, but it could be the simplest explanation for some of these phenomena we are now uncovering.