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Measurement problem / Cartwright: macroscopic objects have many degrees of freedom. - Problem: the effect of averaging over these is to eliminate the interference terms, which are characteristic of superpositions - so the superposition looks like a mixture in a large system, in which the phases are not correlated. - They are statistically indistinguishable. - PutnamVs: a superposition is also a superposition when it is disguised.
How the laws of physics lie Oxford New York 1983