Aristotle quipped, “Nothing is what rocks dream about.”
From time immemorial up to this time, people have tried to
understand time with about as much success as Aristotle explaining “nothing”.
Two contrasting
viewpoints on time divide many prominent philosophers. One view is that time is
part of the fundamental structure of the universe, a dimension in which events
occur in sequence. Sir Isaac Newton
subscribed to this realist view, and hence it is sometimes referred to as
Newtonian time. Time travel, in this view, becomes a possibility as other
"times" persist like frames of a film strip, spread out across the
time line. The opposing view is that time does not refer to any kind of
"container" that events and objects "move through", nor to
any entity that "flows", but that it is instead part of a fundamental
intellectual structure (together with space and number) within which humans
sequence and compare events. This second view, in the tradition of Gottfried
Leibniz and Immanuel Kant, holds that time is neither an event nor a thing, and
thus is not itself measurable nor can it be travelled. [1]
Not much has changed since the third century!
Because
time is linked inextricably with matter (Einstein called them “correlative”),
time cannot be infinite just as matter cannot. Another way of perceiving this
idea “correlative” is: imagine a three dimensional object. Inherent in the idea
of three dimensions are- length, height and width, it sounds really obvious but
you cannot have a three dimensional object without each of those dimensions.
They are correlative. You can have a two dimensional object, that is on the plane, with length and height, these
things exist on paper and flat surfaces, this may be represented by a drawing
of a square. But there exists another corollary of three dimensions. If three
dimensional objects are to exist then, it is only possible for them to do so if
space exists, these objects can only exist in the context of space. Just as two
dimensional objects can only exist if paper exists on which to draw them.
Notice that the two dimensions are only possible if the three dimensions exist.
And it seems reasonable, based on the pattern, that therefore for three
dimensions to exist there must be another dimension.
Now
consider this, just for argument sake, what would happen if we assume a three dimensional
universe without time? What necessarily follows from this scenario is that all
objects in the universe would be static. They would be “frozen”. Time is the
necessary correlative to change. For change to happen there must be an
“environment” that can accommodate it, and time is the perfect answer to a
universe that changes. And if you apply that logic backwards, it becomes clear
that our multidimensional changing universe could not come into existence
without the dimension of time. It is the necessary precondition for flux. If
change were to exist then time had to exist as its necessary precondition. In
this way we have seen with broad strokes the necessity and natural relation
time has to space, given the changing universe we see about us. It also gives rise to the idea that motion, and the laws of motion are correlative to this time/space continuum.
It is
no doubt due to this necessary union of time with space that Einstein for
example had in mind when working on calculations for his famous formula.
It is
for this reason that the philosophical view that proposed “that time is neither an event nor a thing, and thus is not itself
measurable” is erroneous. But it is only erroneous if the prior
understanding of the reality of the material universe has not been
misunderstood. Time is a necessary correlative of a three dimensional changing universe.
This
would seem to pour cold water on the idea that time is “instead part of a fundamental intellectual structure (together with
space and number) within which humans sequence and compare events.”
Unless
of course, what the writer intended by “a
fundamental intellectual structure” was- within the intellect of God. I am quite prepared to accede that if time and
space are to be figments of an imagination then it must be by God’s
imagination! In much the same way C.S. Lewis said something like, “They tell me
Lord when I pray- there is really only one there, if that must be true Lord, then
I must be your dream”