Sabine Hossenfelder, impatient with the results of recent experiments, seeks a better theory that is not observer-dependent:
She’s not happy with the outcome of the experiments, offering “If you claim that a single photon is an observer who make a measurement, that’s not just a fanciful interpretation, that’s nonsense.” She thinks that a new theory of quantum mechanics is needed:
So to summarize, no one has proved that reality doesn’t exist and no experiment has confirmed this. What these headlines tell you instead is that physicists slowly come to see that quantum mechanics is internally inconsistent and must be replaced with a better theory, one that describes what physically happens in a measurement. And when they find that theory, that will be the breakthrough of the century.
Sabine Hossenfelder, “Has quantum mechanics proved that reality does not exist?” at BackRe(Action) (February 19, 2022)
Now, the interesting thing is that Hossenfelder is comfortable with how strange classical particle physics can be. Take neutrinos, for example:
The neutrinos’ overall behavior, she tells us, is inconsistent with the Standard Model of physics. But that’s a “crazy” situation she finds easier to accept.
One conclusion:
We might conclude that the universe is a stranger place than we have sometimes been led to suspect and that the amount and type of strangeness each of us can tolerate depends, to some extent, on prior commitments. But it is what it is anyway.
News, “Theoretical physicist: Quantum theory must be replaced” at Mind Matters News (February 21, 2022)
Takehome: Sabine Hossenfelder can live with the neutrinos that are inconsistent with the Standard Model of physics but quantum uncertainties are beyond the pale.
You may also wish to read:
Study: Science fiction not as strange as quantum physics fact. At least, that’s what we can assume from a failed effort to disprove physicist Eugene Wigner’s thought experiment. The research (and the QBism that resulted) eliminates the possibility that the mind is just an illusion. Apart from observers’ minds, there is no knowledge.
and
Some elements of our universe do not make scientific sense. Well-attested observations of neutrinos are not compatible with the Standard Model of our universe that most physicists accept. Theoretical physicist Sabine Hossenfelder walks us through the reasons that neutrinos, nearly massless particles with no charge, confound expectations.