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06-11-2005, 04:06 PM
actually it's a little different than what you said in post #22. Again, you said that time and space are necessary for existence. Time and space are not the only things required for existence, infact, if space were the only thing besides time, then there would be no time and no existence. That's because time requires matter and space, so that motion can occurr. Thus it is space and matter that are the main requirements for existence, and time is only a byproduct of those two. If you didn't have time as a byproduct, then the matter and the space must not have really existed, or they are at absolute zero which means they also cease to exist. So time is the fundamental characteristic of the universe which encloses both matter and space. Therefore the best definition of time is that it is the same thing as the universe.
As far as time being a dimension, you never defined what the two directions are. If and only if we can move forward and backwards in time can we then consider time as a true dimension. I agree with Sinjin that the direction of time is aligned with the progression of entropy. So we need to know that entropy can flow both ways in some higher context before we can accept time as a true dimension!
time does have a flow or direction, and entropy is what determines it. |