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Originally Posted by Ken G
Every time I hear explanations like this about how reality is behaving, it just strikes me as so overwhelmingly obvious that this is not "really" what reality is doing. It's just a model that works, and often works quite well, amazingly. But of course, it also breaks down at some point, simply because it isn't what reality is doing.
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I'm on the other side of this, actually. That is, I agree that these are just models, and that we use them because they work. But why is it "overwhelmingly obvious" that this is not what reality is like? Perhaps the reason that it works so well is that it actually is pretty close to what "real reality" is. Maybe photons really do take all possible paths from their source to their destination, having infinitely many virtual interactions along the way, just like a Feynman diagram suggests. I'm not saying that the universe must be working that way. I'm asking why it's obvious that it
can't be.