To further explore this idea: 1. Vaz mentions the "black hole complementarity" idea by Susskind that Hawking radiation info is both emitted at the horizon and passes through it, so an observer outside would see the info in the Hawking radiation, but an observer inside would see it inside, but no single observer could confirm both pictures. With my "inside is weird" hypothesis, there could BE no "observer" inside. An "observer" in quantum mechanics is one who makes "measurements." A "measurement" in Von Neumann QM is a non-unitary process... which involves non-invertible information loss. In more modern "decoherence" views of QM, there are two parts of the universe, A and B, and although QM evolution is unitary, if you only look at the subsystem A, its evolution can look nonunitary and "measurement" can be approximately simulated. That view has problems if "A" is the entire universe (where is B?) but my picture is, A is the "normal matter" and B is the "gravitons" and then my theorem that A-B interactions usually happen only ONCE assures decoherence for the normal matter. Inside a GR black hole there is no such theorem, hence hypothetically no decoherence, no "measurement," and so there inherently cannot be any "observers" inside. 2. The very idea that spacetime is described by a "metric" is a classical (nonquantum) idea. Really, presumably the "metric" is the classical approximation of the effect of a huge number of gravitons forming the "gravitational field" which is a "quantum field" approximated by a classical field. Now inside the black hole if we accept my weirdness hypothesis, all such "classical" notions, since they depend on decoherence/measurement effects to eliminate "quantum weirdness," must be discarded. There is no classical physics. There is only quantum physics. "Weird" effects like "being in a superposition of many metrics" happen. Under the weirdness hypothesis, the whole use of GR to describe black hole interiors is bogus or at least highly suspect. They cannot be comprehended using classical physics like GR, at all.