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paper-machine comments on [SEQ RERUN] On Being Decoherent - Less Wrong
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Comments (22)
I'm tapping out.
Nobody seems to think EY's exposition is an issue, and you're the second person who's tried -- and I can't understand the motivation for this -- to explain the underlying QM to me in vague metaphors that neither reflect the underlying theory nor present a pedagogical simplification.
But it does reflect the underlying theory (though it does take special cases and simplifies), and it does present a pedagogical simplification (because it's a hell of a lot easier than solving huge quantum systems. Heck, it's not even a metaphor. A DAG is blank enough - has few enough intrinsic properties - to be an incomplete model instead of a metaphor.
Does anything other than a fully quantum description of a system using only an interacting-particle hamiltonian with no externally applied fields count as a non-vague non-metaphor?