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 why). Cheers > Kindest regards, > > Stephen > > ----- Original Message ----- > From: "Russell Standish" <[EMAIL PROTECTED]> > To: "Bruno Marchal" <[EMAIL PROTECTED]> > Cc: "Russell Standish" <[EMAIL PROTECTED]>; > <[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 (") Australia [EMAIL PROTECTED] Room 2075, Red Centre http://parallel.hpc.unsw.edu.au/rks International prefix +612, Interstate prefix 02 ----------------------------------------------------------------------------
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