On 2/20/2025 11:29 PM, Quentin Anciaux wrote:
Bruce,
The claim follows from basic probability reasoning applied to MWI.
Decoherence ensures that branches evolve independently, preventing
interference. This means that observer instances in different branches
cannot interact. If you accept that observer experiences are
determined by where they find themselves in the wavefunction, then the
relative frequency of experiences should follow the distribution of
amplitudes squared.
"Should" why? So that the Born rule will be obeyed, which is why your
argument is circular. And you keep talking about observers and their
experience. This is just obfuscation. Once an electron spin is
measured UP arbitrarily many observers can look at the SG detector film
and experience seeing it up. That has nothing to do with the Born rule.
Brent
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