08-04-2016, 04:22 PM
secur: I'm not familiar with the Gell-Mann quote, but my guess is that his doubt about nonlocality is akin to your doubt about retrocausality. Here I refer to an earlier post in this thread where you wrote: "How do I know that time itself can't be reversed? ... In fact I don't know it can't be done. I doubt it very much, for reasons of science, philosophy, logic." So you may be interested in this paper: arxiv.org/abs/1512.08275. It seems to me someone willing to accept nonlocality based on Bell's argument and related experiments would also be prone to accept retrocausality in light of the arguments in this paper. Â On the other hand, doubt about the conclusions of this paper might perhaps cause a believer in nonlocality to reassess that belief, due to the similarity of the arguments. My own take is that with a wording change, this paper can be turned in to an argument for local realism with forecasts, which I argued above as an alternative to nonlocality.