On 03 Nov 2013, at 22:43, meekerdb wrote:
On 11/3/2013 1:11 AM, Bruno Marchal wrote:
On 02 Nov 2013, at 21:47, meekerdb wrote:
On 11/2/2013 10:53 AM, John Clark wrote:
On Fri, Nov 1, 2013 at 5:22 PM, Quentin Anciaux
<[email protected]> 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.
> 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"?
As I see it, the question is whether the duplication experiment
provides a good model of randomness. If we imagine doing the
experiment four times, sending the subject(s) through repeatedly
at the end there will be 16 diaries and they will contain the
entries:
MMMM, WMMM, MWMM, WWMM, MMWM, WMWM, MWWM, WWWM, MMMW, WMMW, MWMW,
WWMW, MMWW, WMWW, MWWW, WWWW
and so the participants might compare diaries and conclude that
going to Moscow or Washington is a random event with probability
1/2 - or at least in limit of large numbers of repetitions.
Actually, if they count themselves, one duplication is enough.
Karl Popper already suggested this model of randomness in "The
Logic of Scientific Discovery" and he probably wasn't the first.
That would be astonishing for someone suggesting interactionist
dualism (with Eccles), and missing Everett QM (cf his propensity
theory). Can you give a quote or elaborate? It is the first time I
hear this.
It wasn't in the context quantum mechanics. Popper was proposing a
theory of probability and he defined "n-free" to be a sequence in
which the next value was independent of the previous n values
(chapter 8, section 56).
OK. That has nothing to do with the objective indeterminacy due to
mechanist self-multiplication.
Bruno
Brent
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