I think the dual choice quantum eraser experiment basically shows that to have a reasonable understand of quantum mechanics, we have to suspend much of our common belief and intuition about temporal causality, and it's quite clear at this point humans are not good at reasoning about temporal causality, as anybody who has been in a journal club session about relativity or EPR or paxos will know.
“Why Delayed Choice Experiments do NOT imply Retrocausality” - David Ellerman
“There is a fallacy that is often involved in the interpretation of quantum experiments involving a certain type of separation such as the: double-slit experiments, which-way interferometer experiments, polarization analyzer experiments, Stern-Gerlach experiments, and quantum eraser experiments. The fallacy leads not only to flawed textbook accounts of these experiments but to flawed inferences about retrocausality in the context of delayed choice versions of separation experiments.”
that article was written by this guy: https://en.wikipedia.org/wiki/David_Ellerman
who I do not think is actually an authority on this (QM appears to be just one of the fields he's mathematically involved in).
I'm gonna trust the experimentalists on this one. Not also I didn't say retrocausality, I said intuition about temporal causality, which is distinct.
I'm not interested in physicist/philosophers. Only in the people who run design, set up, and run the experiments.
You're watching a bunch of people with strong opinions about what QM theory implies for the real world. I come from a different direction: I'm recognizing that most of my intuitions about physics, which come from large particles (classically modelled atoms), are just completely and totally useless. And that ncludes the temporal ordering of events.
