(October 12, 2009 at 2:40 pm)Saerules Wrote: We...? Time is a concept to me '/shrug'. Call it causality if you want though... whatever makes it politically correct![]()
That which resembles time ≠ time in some sense??? A causal chain takes time ('in some sense'?) to occur. Is that politically correct enough? One does not have to be a physicist to think about the possibility of more ways to describe something than what-where-when... but one does have to 'not think' to be convinced that what-where-when are irrelevant descriptions because of more descriptions.
Entropy is just the degree of randomness in the system as far as I am concerned. That the universe can exist in many different forms... and only a cyclic universe (of which there could be different types) can be the original. Proving that the 'Big Bang' 'began' time... would also be to prove that our universe is not the original. Quite an achievement, if I may say so myself...![]()
Entropy does not mean that the equality breaks down fundamentally, as doing so would lead to a singularity, or nothingness (righting the inequality)... but only if there is time (causation, whatever) in which to do so. That is the objective rule of existence (1=1, therefore something is itself). Time (concept of it!) is the continued progress of existence. Difference in location and time is to result in the change of the existence. Thus: physics by which 'what', 'when', and 'where' can be deduced. How, why, if... those are questions determining process, purpose, and possibility of what, when, and where.
You might be getting frustrated that I do not see how it is possible for something to progress without a time-'concept'. And before you scream 'causality!' at me... causality is a time-'concept'. It states that cause came before effect, that the effect came after the cause. This is dependent on time. You will notice before and after?
Well since we were discussing physics i tried to keep the definitions to their meaning in physics.... if you 're going to use these words as defined outside of physics then let us know (it gets me confused

Time is a label for the causal dimension inside our universe, or if there are others, time would be the same causal dimension inside every 4-dimensional universe. Any other causality would be in a higher causal dimension 'outside' of the 4-dimensional spacetime.
As for why you insist on a the idea of our own universe being cyclic universe i do not know - it is a dated model that was laid to rest by the discovery of the expansion of the universe primarily, and conclusively by the discovery of the accelerating universe... The Brane theory still suggests a cyclic universe (Brane theory also states "Time" as a single dimension inside each isolated 4-dimensional universe with causal higher dimensions), which i would agree with, as the initial iteration does need to be cyclic, but our universe has an evident beginning and an end extrapolated from cosmological data, both pointing to a finite, isolated system.
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