Re: All feedback appreciated - An introduction to Algebraic Physics

From: Bruno Marchal <>
Date: Tue, 20 May 2008 14:36:59 +0200

Le 20-mai-08, à 01:40, Russell Standish a écrit :

> On Mon, May 19, 2008 at 12:32:14PM -0700, Brent Meeker wrote:
>> Bruno Marchal wrote:
>>> ...
>>> Zombie are important in philosophy, a bit like zero is important in
>>> Number Theory, or like the empty set is important in Set Theory, I
>>> think. For example, it is easy to show that if Bohm QM is correct,
>>> then the Everett Universal waves if full of zombies, even zombie
>>> lacking a material (here: = made of particles) body, yet discussing
>>> and sending mails like you and me.
>> Could you explicate that? Bohmian QM and Everett's relative states
>> are
>> contrary interpretations of QM, so I don't see how to usefully make
>> interferences from their conjunction.
>> Brent Meeker
> I understand that Bruno is appealing to the notion that Bohmian
> mechanics can be considered as a version of the many worlds, where a
> single world is given ontological preeminence by the pilot wave, and
> all the other branches are not really there.
> The "not really there" branches are the ones with the zombies in them
> - but that would imply the zombies are not really there too.

And of course, they are *physically* really there, given that what they
does has to be taken into account for getting correctly the observable
interference effects.


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Received on Tue May 20 2008 - 08:37:58 PDT

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