On 3/12/2011 1:40 AM, Evgenii Rudnyi wrote:

on 12.03.2011 04:43 Brent Meeker said the following:On 3/11/2011 7:24 PM, Stephen Paul King wrote:Hi Andrew, The answer to the simple question that you see that all of this detail leads to is that at its core, Existence is Change itself. Becoming is the fundamental ontological primitive., just as Bergson argued. This is the result that Hitoshi discovered and discussed in his Inconsistent Universe Paper in terms of the truth value of the total Universe being in an infinite oscillation between True and False. Bart Kosko also obtained a similar result in how research on Fuzzy sets. What Barbour really found is that there does not exist a universal */global /*standard of measure of this change.## Advertising

I think Einstein found that long before Barbour. There's no time-like Killing vector field in an FRW universe, so there's no universal time.If there is no standard then there is not a determination of definiteness for the Total Change of existence and thus there is no global measure of change. Since time can be defined in generic terms as a measure of change, Barbour is correct in claiming that time as a global quantity cannot exist. What Barbour missed, as have countless others, is that/* local measures of change can be defined*/. The fact that there is more than one measure of entropy is a huge clue of this.Thermodynamic entropy has always been relative to whatever is taken to be the constraint (constant energy, constant pressure,...) In the Everett interpretation evolution is always unitary and the Boltzmann entropy is constant.I would suggest to look at the CODATA Tables http://www.codata.org/resources/databases/key1.htmlWhat is the meaning that the entropy is relative in this case?

The temperature, which is fixed at 298.15degK.

Also for example S(Ag,cr,298.15 K) = 42.55 ą 0.20 J/(K mol) Do you mean that the Everett interpretation changes this value?

`First, that's not entropy it's the entropy per mol. Second, the Everett`

`interpretation is that evolution is deterministic so the entropy never`

`changes. Of course you can still measure different entropy values and`

`it *seems* to change because your measurement can't project out the`

`whole ray in Hilbert space (you've "split off").`

Brent

Evgenii

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