In my signal and system class ,we were told that there is a kind of system which only exists in mathematical term but cannot be achieved in physics. That obstacle is called cause and effect law. In my opinion, the key point should be located at time. How we see time as a conception? Generally speaking, in math term, there could be no limitation of time conception, but in physics term, the limitation do exist. That is the gap between ideal world and practical world. However, we should ask some questions. How could it be like this? What's the obstacle of the two world, what's the relationship of the two world? Does the ideal world affect the practical world in some way and how? Is there a mean for us to break the obstacle?
I watched a movie called The Man from Earth. An old professor in the movie said something which blew my mind and ruined my preconceptions about time which was developed through so many years I lived. My mind was like a USB flash drive being initialized. It's a totally awesome experience.
He said that
”Time, We can't see it, we can't hear it, We can't weigh it, we can't measure it in a laboratory. It's a subjective sense of becoming what we are instead of what we were a nanosecond ago, becoming what we will be in another nanosecond. The Hopis see time as a landscape, existing before and behind us, and we move— We move through it, slice by slice.”
What is time. Does it really exist? That's a good question which was asked from time to time by all biggest philosophers. And it must be going to be asked by some guys from time to time in the future.
The whole materials of ideal world are hypothesis, which cannot be proved or disproved in practical world. But we can feel their similarities.It's amazing.
In Chinese language system, there is no difference between "I and me", and there is no conception of tense. We don't have the difference between"have and has", "do and did". I don't mean that Chinese don't have a time conception, because of which, they always being late when dating someone. I just want to say that our conception of time is a little difference from the western world reflected in two languages.
When we come to the topic, time, we will immediately come to our mind that, time is so precise, so limited. Lots of people are unconscious of their situation, because of which, their time was wasted and is being wasting all the time. But you cannot help, when someday he really realizes the situation and what is all about. He can get out of that phenomenon.
Haha , some questions were old, so old. But they are also as new as the rising sun every day.
P.S.
Well, this is the first time I wrote an English essay. I love English a lot, though I could not use it that well. Moreover, writing is a not-bad way to develop English language sense and remember words and phrases. YES,I have to carry on.
