The effect time has on life, is.. rather.. discerning.

Sure, time is rather undefinable, well, intangible, but on one plane, primarily used with humans, it is but a man-made invention to organize everyday existence.

The existence of this seems to have rather strong implications on everyday life, commonly seen in age and numbers.

While time is such a necessary foundation in day-to-day reality, it also seems to bound all in its hands. People are afraid to "go back to the way things were," but how do you know that was the past? You can't be sure everything proceeds in one direction, there could be infinite parallel planes, coexisting within and through each other.  

These limits are what separate humans from animals, we can tell the difference between the two. Now why doesn't everybody accept this?