Historical? I know you count many worlds as “understanding”, but I wouldn’t until this puzzle is figured out. (Or maybe it’s that I like Feynman’s (in)famous quote so much I want to keep on using it, even if this means using a narrower meaning for understand.)
IIRC he said something to the effect that it is no longer true that nobody understands QM since we have the MWI; my point is that I wouldn’t count MWI as ‘understanding’ if the very rule connecting it to (probabilities of) experimental results is still not understood.
Historical? I know you count many worlds as “understanding”, but I wouldn’t until this puzzle is figured out. (Or maybe it’s that I like Feynman’s (in)famous quote so much I want to keep on using it, even if this means using a narrower meaning for understand.)
I certainly hope that EY means that the problem of the origins of the Born rule is still open, not that the MWI has somehow solved it.
IIRC he said something to the effect that it is no longer true that nobody understands QM since we have the MWI; my point is that I wouldn’t count MWI as ‘understanding’ if the very rule connecting it to (probabilities of) experimental results is still not understood.