The Quantum Experiment That Defies Logic Exactly 1/12 Of The Time

Physicist Dr.Lídia Del Rio, Essentia Foundation’s research fellow at the University of Zurich, explains to Hans Busstra one of the strangest quantum conundra confronting the foundations of physics: the Frauchiger-Renner (FR) thought experiment.

Scientific papers discussed in this video: Quantum theory cannot consistently describe the use of itself Daniela Frauchiger & Renato Renner: https://www.nature.com/articles/s4146...

Thought experiments in a quantum computer, Nuriya Nurgalieva, Simon Mathis, Lídia del Rio, Renato Renner: https://arxiv.org/abs/2209.06236

Other interesting links related to the video:

Quantum 'thought experiment software': https://github.com/XuemeiGu/Quanundrum

Great Quantum artwork by Nuriya Nurgalieva: https://www.theoryverse.com/art

It only works because of the [wrong] assumption that one observer's measurement of an observable has no effect on other observers' perspectives.

Measuring an uncertain quantity at the moment always changes the system's state, altering it for all observers' perspectives.

Lídia Del Rio @ 1:58 : "...one criticism that many of the shut-up-and-calculate kind of physicists say of this is, 'you should not be allowed to take the point of view of these little agents inside their boxes, just apply the Schrodinger equation from the outside, you see everything evolving like beautiful', but we are the little people inside the boxes..."

It only works because of the [wrong] assumption that one observer's measurement of an observable has no effect on other observers' perspectives.

Measuring an uncertain quantity at the moment always changes the system's state, altering it for all observers' perspectives.

Lídia Del Rio @ 1:58 : "...one criticism that many of the shut-up-and-calculate kind of physicists say of this is, 'you should not be allowed to take the point of view of these little agents inside their boxes, just apply the Schrodinger equation from the outside, you see everything evolving like beautiful', but we are the little people inside the boxes..."

That sort of conclusion comes out of Physicalist metaphysical presumptions about the world ~ and of Quantum physics. I cannot really overstate how much their hypocrisy bothers me ~ "anyone who claims to understand Quantum physics doesn't understand it", and then they pretend that they understand it, as if it must be evidence for their worldview alone.