On Sat, Sep 28, 2013 at 09:29:17AM +0200, Bruno Marchal wrote:
> On 28 Sep 2013, at 07:46, Russell Standish wrote:
> >On Sat, Sep 28, 2013 at 04:33:15AM +0000, chris peck wrote:
> >>Hi Russel
> >>
> >>Thank goodness Clarcky has the same/similar complaint as me. I
> >>think Brent does too, because he said he had an initial reaction
> >>to the step like this and then offered an analysis of the
> >>probabilities to me all of which were certainties rather than
> >>indeterminacies. He didn't get back to me on that, but I think
> >>he has doubts or should have.
> >>
> >>>>If that is not what you said, what do you think that man would
> >>experience?
> >>
> >>a) Nothing
> >>b) being in Moscow xor being in Washington
> >>c) being in Moscow and Washington
> >>d) being in neither Moscow nor Washington
> >>
> >>Logically, these four possibilities exhaust the situation. Only b) is
> >>compatible with COMP.
> >>
> >>
> >>You have to remember that the question is asked before the man
> >>is duplicated and consequently only c is compatible with comp. I
> >>hope Bruno's ideas are not too dependent on b being compatible
> >>with comp, because b is incompatible.
> >>
> >>If the scan of the man successfully copies the 'I'ness, then
> >>that 'I'ness must be sent to washington AND moscow. And, given
> >>comp, prior to duplication he should expect to experience both
> >>moscow and washington.
> >>
> >>All the best.
> >>
> >>
> >
> >Experiencing both Washington and Moscow at the same time would be a
> >sort of madness, a schizophrenic experience. That is why I said it did
> >violence to the notion of surviving the duplication. With b) on the
> >other hand, it matters not whether you experience Washington, or you
> >experience Moscow, you have survived the experience. That is why b) is
> >compatible.
> >
> >I suppose in retrospect, strictly speaking, d) is also compatible with
> >COMP, but a bit of a strange choice. One wonders what you possibly
> >could be
> >experiencing in this case, given the protocol.
> I don't see how d) can be compatible with comp. Both sees one city,
> W or M. Only "b" is compatible, like you said.
> Bruno

You survive the experience, but it is not the experience you
expect. Maybe you end up dreaming that you are on Mars, for example.

Its an odd choice, as I said, but I can't see how the COMP postulates
rule it out.


Prof Russell Standish                  Phone 0425 253119 (mobile)
Principal, High Performance Coders
Visiting Professor of Mathematics      hpco...@hpcoders.com.au
University of New South Wales          http://www.hpcoders.com.au

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