Although it may not be very respectable to cite a movie as the source of my most recent introspection, I will try to redeem myself in stating that the movie was one of the best I have ever seen. Inception not only churned the creative juices of my Descartean mind, but resurfaced my thoughts on the perception of time.
In the movie, time was extended in the dreamworld; the passing of time was exponentially slower in a dream than in reality. It is a fascinating thought, and also one that seems to make sense. There have been times when I have hit the “snooze” button on my alarm in the morning and wound up in an epically long dream, only to be awoken again by my alarm, just ten minutes later. It brings to focus just how dependent time is upon individual perception.
What allows time to pass slower in a dream? Maybe it is the lack of detail required in a dreamworld- a lack of physical stimulus and confusion; maybe only so much information is required for the mind to make the connections and infer the rest, guiding itself along a path of illusion. Then again, if one has to simultaneously create and perceive the world of a dream, one could argue more effort is required- but if that were so, shouldn’t dream time feel faster than real time?
The point is that, when in a dream, one feels as though much time has passed. So, regardless of outside stimuli, one’s own awareness and perception must in fact play a key part in defining time. It causes wonder over many things, for example-
Do people devoid of large amounts of physical stimuli, such as the blind, feel the passage of time in a slower manner? Do they live closer to the present because they are less bogged down by the processes required to interpret visual information? Or does the mind just transfer that need to process information to their other senses, making them more heightened? And what of children? Do children not perceive the passage of time in a slower manner? Is it that time goes by slower for them, or do their minds just work faster? There is no denying an hour for a child is much greater than an hour in the mind of an adult.
The real paradox that arises from these questions relates to the perception of time in physics. If time is so subjective, on what grounds can it be used as a dimension- as a foundation to which the fibers of existence are tied? It is slightly unsettling in that is seems to take the universality out of physics. To me, the subjectivity of time seems to separate all of us from one another because the only way the concept of time as a dimension and the subjective idea of time can coexist is to say that each person is a universe unto themselves, where all physics are subjective and dependent upon the perception of the individual.
I suppose this suggests that in many ways, the universe does revolve around an individual. To each his own- the world I see exists in its exact specifications only to me. The passage of time, height, width, dept, the way the world looks, tastes, smells, sounds- it is only my universe. To everyone else it is at best a shadow to the world they perceive. Still, laws of physics seem to behave similarly enough in all of our individual universes, so maybe we aren’t truly separated. Maybe we do not live in our own true universe, maybe we all just have our own filtered version of the same thing.
My pondering may seem inconclusive, but the concept highlighted is the need for an explanation of how time can be at once so concrete and so indistinguishable, particularly when the subjective interpretation of the “passage of time”, is a factor that goes to define the concept of time itself.
So what is there to be said of time? Nothing?… everything?… does time even exist or is it just a requirement for the perception of the individual? How could something so subjective work plausibly in a universal model for physics? Can it at all, or are we just universes unto ourselves? Maybe it supports the concept that time only exists to humanity as a linear progression, but not so to the rest of existence. Time travel may be impossible then- if the future always exists just as the present and the past, we are not going into the future but only having it be revealed to our minds.
Whatever the case, the question is drawn. What is the relevance of time?