The fundamental descriptive mathematics are known—the interpretations are still debated. As has been the case for nearly a century now, and I don’t see that changing anytime in the immediate future. And if you recombine all four sets of split beams, then there isn’t anything interesting going on there, either; half still goes through, same as before, and predictably so. That is, if you direct one polarization one direction, and another in another, and then recombine them—and there’s the snag, see. You can’t combine them without re-emitting both of them; you’re performing an additional operation which is generating/modifying information. You aren’t reproducing lost information; you’re generating new information which is equivalent to the lost information.
For the fundamental physics to be known, they must be falsifiable, and have passed that test. This is not the case. The mathematics are passing with flying colors, of course—nobody is entirely sure what the mathematics mean, however. (Everybody thinks they do, though.)
The fundamental descriptive mathematics are known—the interpretations are still debated. As has been the case for nearly a century now, and I don’t see that changing anytime in the immediate future. And if you recombine all four sets of split beams, then there isn’t anything interesting going on there, either; half still goes through, same as before, and predictably so. That is, if you direct one polarization one direction, and another in another, and then recombine them—and there’s the snag, see. You can’t combine them without re-emitting both of them; you’re performing an additional operation which is generating/modifying information. You aren’t reproducing lost information; you’re generating new information which is equivalent to the lost information.
For the fundamental physics to be known, they must be falsifiable, and have passed that test. This is not the case. The mathematics are passing with flying colors, of course—nobody is entirely sure what the mathematics mean, however. (Everybody thinks they do, though.)