On Wed, Feb 25, 2004 at 12:08:43AM -0500, Stephen Paul King wrote:
> Dear Russel,
>     Could we associate this "psychological time" with the orderings that
> obtain when considering successive measurements of various measurements of
> non-commutative canonically conjugate  (QM) states?

The word "successive" implies a time dimension already. I'm not sure
what you are proposing here.

>     Also, re your Occam's razor paper, have you considered the necessity of
> a principle that applies between observers, more than that involved with the
> Anthropic principle? Something along the lines of: the allowable
> communications between observers is restrained to only those that are
> mutually consistent. We see hints of this in EPR situations. ;-)

No I haven't considered this second requirement. It would be
interesting to note whether it is a derivative concept (can be derived
from the standard QM principles say), or whether it needs to be added
in as a fundamental requirement (in which case comes the question of


> Kindest regards,
> Stephen
> ----- Original Message ----- 
> From: "Russell Standish" <[EMAIL PROTECTED]>
> To: "Bruno Marchal" <[EMAIL PROTECTED]>
> Cc: "Russell Standish" <[EMAIL PROTECTED]>;
> Sent: Tuesday, February 24, 2004 5:19 PM
> Subject: Re: Tegmark is too "physics-centric"
> I think that "psychological time" fits the bill. The observer needs a
> a temporal dimension in which to appreciate differences between
> states.
> "Physical time" presupposes a physics, which I haven't done in
> "Occam".
> It is obviously a little more structured than an ordering. A space
> dimension is insufficient for an observer to appreciate differences,
> isn't it?
>      Cheers
> snip


A/Prof Russell Standish                  Director
High Performance Computing Support Unit, Phone 9385 6967, 8308 3119 (mobile)
UNSW SYDNEY 2052                         Fax   9385 6965, 0425 253119 (")
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