The discussion explores the concept of non-locality within the Many-Worlds Interpretation (MWI) of quantum mechanics, focusing on how observers in different worlds can correlate their measurements without invoking non-locality. Participants delve into the implications of decoherence, the nature of the wave function, and the relationship between locality and non-locality in the context of MWI.
Participants express multiple competing views on the nature of locality and non-locality in MWI, and the discussion remains unresolved regarding how worlds correlate and synchronize their measurements.
There are limitations in the assumptions made about the nature of decoherence and the wave function, as well as the implications of entanglement and correlations across different worlds.
Indeed so but that's a weaker sense of ontic than I was using. I was just meaning that there is no reason why reality must actually be the wavefunction. A 1-1 map would be fine.akvadrako said:The reason the wavefunction must be ontic (which that I mean maps 1-to-1 onto reality) is given by the PBR and Colbeck and Renner theorems.