Why is quantum mechanics non-local? (I wish someone had told me this 20 years ago.)She correctly says that a lot of people say quantum mechanics is nonlocal, but by that, they mean that the wave function collapse is nonlocal. That is true, but not a physical nonlocality, she correctly says.
She also correctly says that last year's Nobel Prize for Bell test experiments did not endorse any nonlocality, even though some reported it that way.
Those experiments are consistent with:
- Quantum mechanics, non-classical, local, Copenhagen
- Nonlocal theories of hidden variables
The only possibility ruled out by Bell tests is a local theory of classical hidden variables.
Hossenfelder like superdeterminism, which in this video she calls "Violation of measurement independence". It means you can never randomize the inputs to an experiment, so you can never trust the outputs.
She prefers superdeterminism to nonlocal theories of hidden variables. She acts as if those are the only two possibilities. However both have been rejected by almost everyone. It is a silly preference.
I only post this because her podcasts get a lot of views, and people think that they are learning something. But she has fringe views that are contrary to almost all of modern science.