The idea that physical phenomena might be described by a more downto-earth theory than quantum physics has met with resistance from many physicists. Indeed, it seems that nature is not as simple as we would like.
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Blinov, B. Hidden context. Nature 460, 464–465 (2009). https://doi.org/10.1038/460464a
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DOI: https://doi.org/10.1038/460464a