On 02 Nov 2013, at 18:53, John Clark wrote:
On Fri, Nov 1, 2013 at 5:22 PM, Quentin Anciaux <allco...@gmail.com>
wrote:
>> You have been duplicated so there are TWO FIRST PERSON POV and
they both remember writing the diary, so which one is Bruno Marchal
talking about?
> Anyone of the two
So "you" sees both Moscow AND Washington.
No, anyone of the two see only one city. "you" are both of them, but
both see only one city.
You persist in forgetting the distinction between the 3-1 view, as
explained in preceding post, and the 1-views.
> each will have a different diary
A different diary?? Both the Washington Man and the Helsinki Man
remember writing the exact same identical diary and the last line
says " I Quentin Anciaux in Helsinki am now walking into the
duplication chamber, and now I see the operator starting to push the
on butto....".
So it's true that "you" wrote the diary, but which one is "you"?
Both. We have agreed on this, and the FPI comes exactly from that
fact. Both copies are you, and both copies see only one city, and
because both are you, and both see only one city, they could not have
predicted which one.
John, do you agree that if we promise you to give a cup of coffee in
both W and M, you can predict in Helsinki that P("I ill drink coffee)
= 1. ?
Then, if you are OK with this, you can understand that in Helsinki,
the probability to see only one city is one.
You seem to ignore that the first person events "seeing W" and "seeing
M" are incompatible. At no moment will one person ever say "I see both
city", unless they talk about the first person view in a third person
description, which is not what the question is about. The question is
about the first person incompatible events of seeing (in some direct
way) which city.
You seem again stopping doing the thought experiment before putting
yourself at the place of *any* survivor.
Bruno
John K Clark
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