On 2/4/2025 11:38 AM, Quentin Anciaux wrote:
The fundamental absurdity of single-history frameworks becomes clear
when we consider the reliance on theoretical constructs that, by
definition, never exist and never will. How can one justify using
mathematical tools that invoke nonexistent possibilities to explain a
reality where only one sequence of events is ever realized? If
something never existed, has no causal influence, and will never exist
in any possible future, how does it play any role in explaining what
does exist?
This contradiction is evident in interpretations like Bohmian
mechanics, where the pilot wave guides particles but remains
completely unobservable and uninteractive beyond that role. It’s an
invisible, untouchable entity that affects matter but is never
affected in return—something that is functionally indistinguishable
from the pure abstractions of probability waves in a single-world
interpretation. In both cases, explanations rely on constructs that
have no true existence beyond their mathematical form.
A single-history universe that leans on unrealized possibilities to
justify probability
"Justify"?? Unrealized possibilities are what probabilities quantify.
If all possibilities were realized the wouldn't have probabilities
assigned to them...exactly the problem that arises in MWI.
is making an implicit appeal to something that doesn’t and will never
exist. It treats the wavefunction as a real tool for calculating
outcomes while simultaneously denying that the alternatives it
describes have any grounding in reality. This is the absurdity: how
can something that never existed be part of an explanation for what does?
That is just a lot of emotive talk. All the alternatives have a
"grounding in reality"; that's what makes the possibilities with
definite probabilities.
Brent
In contrast, in a many-worlds framework, all possibilities exist and
are real branches of the wavefunction, providing an actual basis for
probability. The probabilities are not just mathematical conveniences;
they describe distributions of real outcomes across real histories.
This removes the need for metaphysical hand-waving about non-existent
possibilities influencing reality.
If physics is about describing reality, then relying on things that
are, by construction, eternally non-existent to justify observed
phenomena is conceptually incoherent. It is an attempt to have it both
ways—to use abstract possibilities when convenient while denying their
reality when inconvenient. That contradiction is why single-history
frameworks ultimately fail to provide a satisfying foundation for
probability and existence itself.
Quentin
Le mar. 4 févr. 2025, 19:03, John Clark <johnkcl...@gmail.com> a écrit :
On Tue, Feb 4, 2025 at 12:56 PM 'spudboy...@aol.com' via
Everything List <everything-list@googlegroups.com> wrote:
/> Bohmian mechanics v Everett-DeWiit-Wheeler? /
/For Carroll, it probably means they're the same.
Indistinguishable. /
*This is what I said about that about a month ago:*
*Pilot Wave Theory keeps Schrodinger's Equation but needs to add
another entirely new very complicated equation called the Pilot
Wave Equation that contains non-local variables. When an electron
enters the two slit experiment the Pilot Wave in effect produces a
little arrow pointing to one of the electrons with the caption
under it saying "/this is the real electron, ignore all the other
ones/". The Pilot Wave does absolutely nothing except erase
unwanted universes, it is for this reason that some have called
Pilot Wave theory theMany Worlds theory in denial. *
*
*
*The Pilot Wave is unique in another way, it can affect matter but
matter cannot affect it, if it's real it would be the first time
in the history of physics where an exception to Newton's credo
that for every action there is a reaction; even after the object
it is pointing to is destroyed the pilot wave continues on,
although now it is pointing at nothing and has no further effect
on anything in the universe. Also, nobody has ever been able to
make a relativistic version of the Pilot Wave Equation.Paul
diracfound a version of Schrodinger's Equation that was compatible
with special relativity as early as 1927. *
*
*
*John K Clark See what's on my new list at Extropolis
<https://groups.google.com/g/extropolis>*
8b0
**
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