Thanks Alan, this raises the issue of interpretation of the wf. It’s a vexed issue because most people presuppose that ‘real’ = ‘spacetime object’ but in general the wf is not compatible with spacetime existence. For those who accept that definition of real (whether tacitly or explicitly), this leads to antirealism about the wf on the one hand, or pseudo-classical approaches (hidden variables) on the other. If we let go of that presumption, we have more interpretive options.
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