  In orthodox quantum mechanics as well as in any other current quantum theory that postulates non-locality (i.e., influences between distant, space-like separated systems), the influences between the distant measurement events in the EPR/B experiment do not propagate continuously in space-time. They seem to involve action at a distance. Yet, a common view has it that these influences are due to some type of holism and/or non-separability of states of composite systems, which are characteristic of systems in entangled states (like the spin singlet state), and which exclude the very possibility of action at a distance. The paradigm case of action at a distance is the Newtonian gravitational force. This force acts between distinct objects that are separated by some (non-vanishing) spatial distance, its influence is symmetric (in that any two massive objects influence each other), instantaneous and does not propagate continuously in space. And it is frequently claimed or presupposed that such action at a distance could only exist between systems with separate states in non-holistic universes (i.e., universes in which the states of composite systems are determined by, or supervene upon the states of their subsystems and the spacetime relations between them), which are commonly taken to characterize the classical  realm.[9]