# Re: The multiverse is unscientific nonsense??

`On Thu, Nov 30, 2023 at 12:46 PM Jason Resch <jasonre...@gmail.com> wrote:`
```
> On Wed, Nov 29, 2023, 8:39 PM Bruce Kellett <bhkellet...@gmail.com> wrote:
>
>> On Thu, Nov 30, 2023 at 11:59 AM Jason Resch <jasonre...@gmail.com>
>> wrote:
>>
>>> 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.
>>>>
>>>
>>>
>>> According to relativity you exist in all times across your lifespan (and
>>> all times are equally really). 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.
>>>
>>
>> And how do we select out the present moment from the block universe?
>>
>
> I believe all apparent selections are merely indexical illusions. 'Here'
> is no more real than 'There', 'Now' is no more real than 'Then', 'I' is no
> more real than 'Him'. We only consider these things special due to the
> position we happen to be in at the time a consideration is made, but all
> such considerations exist and are equally valid. All 'Heres' are real, all
> 'Nows' are real, all points of view are 'Is'. Only, as Shrodigner says, we
> aren't in a position to survey them all at once.
>

What a load of fanciful nonsense! This goes no way towards explaining our
experience.

Bruce

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