That one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it. ~ Isaac Newton
Basic notions in physics depend upon a time continuum: cause preceding effect. A principle of locality must exist for cause and effect to work.
If causality is kicked aside, such as with simultaneous (“spooky”) action at a distance, locality is violated.
Nonlocality is a well-established fact. Quantum entanglement at a distance has repeatedly been demonstrated. In one experiment, a single photon entangled nearly 3,000 atoms.
The fundamental properties of chemistry rely upon entanglement. Solids form, and retain their solidity, via quantum entanglement of the electrons in the material.
Quantum entanglement is a strange and non-intuitive aspect of the quantum theory of matter, which has puzzled and intrigued physicists since the earliest days of the quantum theory. ~ American physicist Leon Balents
Superluminal communication presents a challenge to theoretical physics that has not been resolved. It is a challenge that can never be met by insisting upon the universe as a 4d closed system; the basic axiom which Newton and Einstein were so confident of.
Entanglement demonstrates that time, as well as space, is emergent: constantly coming into being, as contrasted to preexisting and incrementally evolving, as it appears to us.
Space and time will end up being emergent concepts; i.e. they will not be present in the fundamental formulation of the theory and will appear as approximate semiclassical notions in the macroscopic world. This point of view is widely held in the string community. ~ Israeli theoretical physicist Nathan Seiberg
String theory implies countless possible vacuum states; that is, spatial constructs with different properties. From vacuum a spacetime emerges into the universe which we experience. This seeming science fiction is a science fact.