[The_rationalist]

Well if Occam's razor is not enough, you must know that both many world interpretation of QM and hortodox view of QM are refuted. The one remaining is the statistical one that is: QM is a map not the territory, QM descriptions are description of optimal use of our knowledge (or lack of) on a system. Sufficient knowledge of the environment allow use of classical mechanics. Quantum paradoxes do not exists because e.g the phenomenon such as two simultaneous antithetic state (e.g a cat dead and alive) are just intermediate QM calculations results that have no reality but are useful for calculations. Sadly QM are invaded by BS artists and "philosophers" which prefer fun magic to serious rigorous truths. Source: https://www.google.com/url?sa=t&source=web&rct=j&url=https:/...

[semi-extrinsic]

It is a travesty to put forward such unfounded claims, and then point to as source a paper by the great Anthony Leggett on the use of condensed matter systems to probe the quantum measurement problem.

What you are claiming is merely the proposition of "hidden variables" aka "local realism", a theory which has been thoroughly rejected by experimental measurements [1,2,3].

[1] https://www.nature.com/articles/nature15759

[2] https://doi.org/10.1103%2FPhysRevLett.115.250401

[3] https://doi.org/10.1103%2FPhysRevLett.115.250402