Feynman famously said, "I think I can safely say that nobody understands quantum mechanics" ^[1]. Despite the fact that quantum mechanics "has survived all tests" and "we all know how to use it and apply it to problems," Gell-Mann agreed with Feynman saying, "we have learned to live with the fact that nobody can understand it" ^[2]. In the video ^[3], researchers explain how axiomatic reconstructions of QM based on information-theoretic principles contain a surprising advance in the understanding of QM. Specifically, they show how the principle of Information Invariance & Continuity ^[4]:

The total information of one bit is invariant under a continuous change between different complete sets of mutually complementary measurements.

At the basis of information-theoretic reconstructions of QM already implies the relativity principle (aka "no preferred reference frame (NPRF)") as it pertains to the invariant measurement of Planck's constant h when applied to spin-1/2 measurements in spacetime. This is in total analogy to the Lorentz transformations of special relativity (SR) being based on the relativity principle as it pertains to the invariant measurement of the speed of light c (light postulate). Thus, the information-theoretic reconstructions of QM provide a "principle" account of QM in total analogy to that of SR, revealing a deep unity between these pillars of modern physics where others have perceived tension. Since most physicists do not question their understanding of SR per NPRF + c, it should no longer be the case that physicists question their understanding of QM, as researchers now know that it is based on NPRF + h per the information-theoretic reconstructions of QM.