# Re: The multiverse is unscientific nonsense??

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On 11/29/2023 4:58 PM, Jason Resch wrote:
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On Wed, Nov 29, 2023, 7:17 PM Bruce Kellett <bhkellet...@gmail.com> wrote:

On Wed, Nov 29, 2023 at 10:49 PM Stathis Papaioannou
<stath...@gmail.com> wrote:

On Wed, 29 Nov 2023 at 12:34, Bruce Kellett
<bhkellet...@gmail.com> wrote:

On Wed, Nov 29, 2023 at 12:02 PM Stathis Papaioannou
<stath...@gmail.com> wrote:

The Born rule allows you to calculate the probability
of what outcome you will see in a Universe where all
outcomes occur.

You are still conflating incompatible theories. The Born
rule is a rule for calculating probabilities from the wave
function -- it says nothing about worlds or existence. MWI
is a theory about the existence of many worlds. These
theories are incompatible, and should not be conflated.

“The Born rule is a rule for calculating probabilities from
the wave function -- it says nothing about worlds or
existence”  -and- “MWI is a theory about the existence of many
worlds” are not incompatible statements.

Perhaps that is the wrong way to look at it. The linearity of the
Schrodinger equation implies that the individuals on all branches
are the same: there is nothing to distinguish one of them as "you"
and the others as mere shadows or zombies. In other words, they
are all "you". So you are the person on the branch with all spins
up and your probability of seeing this result is one, since this
branch certainly exists, and, by linearity, "you" are the
individual on that branch. This is inconsistent with the claim
that the Born rule gives the probability that "you" will see some
particular result. As we have seen, the probability that "you"
will see all ups in one, whereas the Born probability for this
result is 1/2^N. These probability estimates are incompatible.

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According to relativity you exist in all times across your lifespan (and all times are equally really).
```
Brent

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Yet you are only ever aware of being in one time and in one place. I think this tells us more about the limitations of our neurology than it reveals about the extent or nature of reality. If a copy of me is created on Mars, the me know Earth doesn't magically become aware of it.
```
Jason

Bruce
```
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