In this video, researchers offer a principle account of Einstein-Podolsky-Rosen (EPR) correlations (quantum entanglement) and quantum contextuality by applying a generalization of the relativity principle ("no preferred reference frame," NPRF) to the measurement of Planck's constant h to underwrite the qubit Hilbert space structure with its SU(2)/SO(3) transformation properties. Quantum information theorists (QIT) reconstruct denumerable-dimensional quantum mechanics (QM) in composite fashion from the qubit Hilbert space structure. Thus, researchers see that NPRF is to QIT reconstructions of QM, as NPRF is to the Lorentz transformations of special relativity (SR), since the postulates of SR can be stated as NPRF applied to the measurement of the speed of light c. Unlike retrocausal accounts, our principle explanation is a complete rejection of Reichenbach's Principle.