The History of Sound News

YES

NO

YES

Sum-over-histories (path integrals) represents fundamental ontology

Retrocausality shapes histories

All decohered branches are real (Many-Worlds)

Only one classical history is real; probabilities reflect ignorance

Macroscopic recoherence of distinct histories can occur

Superdeterminism underlies a single deterministic history

It is meaningless to talk about events with definite outcomes in the past when no observer observes them

We need to talk about histories in a different theoretical context because quantum theory will ultimately be overthrown

The past is definite; the future is not

Only consistent/decoherent histories have meaningful quantum probabilities

Decoherence plus quantum Darwinism is sufficient to derive quasi-classical histories conforming to our experiences

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Before 2050

Before 2040

YES