2014-02-26 7:31 GMT+01:00 chris peck <[email protected]>:

> Hi Liz
>
>
> *>> I meant changed from our everyday definition, in which we normally
> assume there is only one you, which is (or is at least associated with)
> your physical structure. Which we generally assume exists in one universe.*
>
> We lose that definition just by stepping into the realm of MWI don't we?
> Its not as if we can have use of it in MWI until we want to argue that we
> will always see 'spin up'.
>
> MWI forces upon us either the complete abandonment of any notion of
> personal identity over time, or the equal distribution of it through all
> the branches in which 'we' appear.
>

That's where your wrong... that would mean all branches have equal measure,
where it must not, if MWI must be in accordance with QM.

http://plato.stanford.edu/entries/qm-manyworlds/#PRPO


>
> All the best
>
> Chris.
>
> ------------------------------
> From: [email protected]
> Date: Wed, 26 Feb 2014 07:28:53 +0100
>
> Subject: Re: 3-1 views (was: Re: Better Than the Chinese Room)
> To: [email protected]
>
>
>
>
>
> 2014-02-26 7:21 GMT+01:00 chris peck <[email protected]>:
>
> Hi Bruno
>
>
> >> Yes, it is the common confusion between 1 and 3 views.
>
> There is no such confusion. I haven't seen anyone confusing these.
>
>
> >>She should have said: "whatever she knows she will see, she should
> expect (with certainty!) to see SOMETHING definite".
>
> But, If she had of said that you'd both be wrong!
>
> >> And in the 1p it is obvious she will never see both outcome".
>
> You need to stop confusing what is seen with what can be expected to be
> seen. I think that's the source of many of your mistakes. She can expect to
> see each outcome without being committed to the view that either future
> self sees both. All that 1p,3p,3-1p,1-3p stuff is a rubbishy smoke screen
> to divert attention from the simple error you make here, isn't it?
>
>
> She can make a probabilistic prediction as you can make in MWI... you're
> the one wanting to say probability are wrong, but only the interpretation
> of what is probability change in MWI (and duplication settings)... not the
> prediction... if you say it is totally useless, then you're ready to make a
> bet with me (as everything for your has equal probability of happening...)
>
> Quentin
>
>
> All the best
>
> Chris.
>
> ------------------------------
> From: [email protected]
> To: [email protected]
>
> Subject: Re: 3-1 views (was: Re: Better Than the Chinese Room)
> Date: Wed, 26 Feb 2014 05:26:02 +0100
>
>
>
> On 25 Feb 2014, at 07:31, Quentin Anciaux wrote:
>
> Greaves rejects subjective uncertainty. With respect to spin up and spin
> down pay special attention to the point in section 4.1 where, in discussion
> of a thought experiment formally identical to Bruno's step 3, he argues:
>
> *"What ... should Alice expect to see? Here I invoke the following
> premise: whatever she knows she will see, she should expect (with
> certainty!) to see. So, she should (with certainty) expect to see spin-up,
> and she should (with certainty) expect to see spin-down."*
>
> That's nonsense, and contrary to observed fact.
>
>
>
> Yes, it is the common confusion between 1 and 3 views. She should have
> said:
>
>
>  "whatever she knows she will see, she should expect (with certainty!) to
> see SOMETHING definite". And in the 1p it is obvious she will never see
> both outcome".
>
> Bruno
>
> http://iridia.ulb.ac.be/~marchal/
>
>
>
>
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-- 
All those moments will be lost in time, like tears in rain. (Roy
Batty/Rutger Hauer)

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