Thank you, Ethan. That was a lot of careful analysis and explanation for us amateurs. I enjoyed it very much.
There’s a third alternative: you can do philosophy until an idea drops into the right physical slot. ;)
If quantum physics teaches anything, it’s that beyond a certain point, there is either no isolated locality to measure or no adequate theory to determine it.
Whatever is still left when we stop believing in it is probably useful. Thanks to statistical probabilities, the universe can sometimes harvest that usefulness. Thanks to mathematics, we can sometimes measure and understand what the universe does without even believing what it didn’t need to believe.
Do be do be do.