Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bell's Theorem, Many Worlds and Backwards-Time Physics: Not Just a
  Matter of Interpretation   The classic "Bell's Theorem" of Clauser, Holt, Shimony and Horne tells us
that we must give up at least one of: (1) objective reality (aka "hidden
variables"); (2) locality; or (3) time-forwards macroscopic statistics (aka
"causality"). The orthodox Copenhagen version of physics gives up the first.
The many-worlds theory of Everett and Wheeler gives up the second. The
backwards-time theory of physics (BTP) gives up the third. Contrary to
conventional wisdom, empirical evidence strongly favors Everett-Wheeler over
orthodox Copenhagen. BTP has two major variations -- a many-worlds version, and
a neoclassical version of partial differential equations (PDE) in the spirit of
Einstein. Section 2 discusses quantum measurement according to BTP, focusing on
how we represent condensed matter objects like polarizers in a Bell's Theorem
experiment or in tests of Hawking's cosmology. The Backwards Time Telegraph,
though speculative, is discussed.

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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: cs
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: stat