[ExI] Many Worlds wins another one

[Giulio Prisco]

"Although Penrose praises the new work, he thinks it’s not really
possible to test his version of the model. He says he was never
comfortable with particle swerves, because they might cause the
universe to gain or lose energy, violating a basic principle of
physics. He has spent the pandemic lockdown creating a new and
improved model. “It doesn’t produce a heating or radiation," he says.
In that case, gravity might be causing collapse, yet hiding its
tracks.

https://www.sciencemag.org/news/2020/09/one-quantum-physics-greatest-paradoxes-may-have-lost-its-leading-explanation

On Sat, Sep 12, 2020 at 9:10 PM John Clark via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
> Roger Penrose had proposed a rival to Everett's Many Worlds as an Interpretation of quantum mechanics. In his Idea the Quantum Wave Function really does physically collapse and timing of the collapse depends on a random element and on gravity and thus on the mass density of particles in superposition; the more massive the object the shorter the time before the wave collapses and Penrose said that was the reason our everyday macro world appears to follow classical physics to an excellent approximation. However in the September 7 2020 issue of the journal Nature Physics there is a report of an experiment done in a laboratory deep under the GranSasso Mountain in Italy that produced results that are NOT compatible with Penrose's theory.
>
> Underground test of gravity-related wave function collapse
>
> Test of wave function collapse suggests gravity is not the answer
>
> John K Clark
>
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