28 July 2007

What is Time?

Unlike Matter, Energy and Space, Time is not an independent entity. It is merely a concept that emerges out of the status of evolution of any system including the universe as a whole. If there are no changes in the state of a system in any form whatsoever, the concept of Time is bound to lose its meaning altogether.

In nature, we find systems evolving spontaneously and we characterize their evolution by an abstract parameter called Time. Keeping pace with such self-induced evolutionary manifestations, this parameter runs without stop, while the concept of “present” remains eternally frozen. The measure of Time is nothing but the coordinate of this ever-running “present”. Every instant that elapses, the present moves a bit ahead, engulfs the future and merges with the past. And in course of such evolution, every system passes through a definite sequence of states. The connecting thread, being apparently ensured by causal relations, leads to the apparent flow of Time in a particular direction, namely from the past to the future.

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