Wednesday, May 23, 2007

Reality Time

I've had a thought which has been running circles around my mind for some time now. Everybody knows that electrical impulses are sent through the nervous system of the body. Things such as taste, touch, smell, and sight are all merely interactions between neurons which are then interpreted by the brain. Since electricity does have a top speed, there is a certain amount of time it takes for a person to say, actually smell a flower, and for the smell of the flower to register in our minds. This got me into thinking about the concept of reality itself. Now, I don't want to go too philosophical or metaphysical here. I just want to address the issue of how we interpret reality on a small scale. Think of it this way. A sloth moves so slowly because it does not have a myelin coating around its neurons that speed up electrical impulses. It is therefore slower than us. However, from the sloth's perspective, this slow moving lifestyle is natural, and everything around it just moves faster. There is a very different way on how the world is experienced between sloths and humans. However we humans are also at a slight disadvantage. While we do have myelin coating our nerves, there is still a delay between the act of touching something and when our brain interprets the touch itself. And here is where reality comes in. We experience the entire world in a delayed frame. Sure, it may not be that noticeable to us, but who's to say that? A sloth surely thinks that there is nothing wrong with the way it interprets the world. It still gets by just fine without the myelin and with the long delay. However with this sloth there is no real delay. Same goes for humans. We don't think about the delay it takes for us to actually interact with the world. There are those who would say "Well, it's only a few nanoseconds of delay. It's hardly worth noticing at all." Well how exactly can we be so sure that it is that much of a delay? Any type of thing that we try measuring will be subject to the same delay. Think of it as a person with a stopwatch (a very accurate stopwatch). If the person started the stopwatch then stopped it, much more time would have actually passed in the real physical universe than what the person experienced and timed. There is the time it took for him to actually make the decision to press down the button, the time for the impulse to be sent down the arm to press the button, another impulse to remove the finger from the button, then a time for the man to repeat the process and stop the timer. All of that adds up, and for an observer unaffected by this delay, there might actually be a noticeable difference. Who are we to say? For all we know reality could be more different then any of us can imagine. But that's another topic for another day: The Perspective.