Is there time? Or is it just an illusion?

[ZIKA99]

Summary:: Is there time?

Is there time? Or is it just an illusion !?
I read somewhere that there is no time like right and left or west and east that do not exist in space and are only man-made.

But in general, I believe in something that time is nothing more than repetitive movements !
For example, a year that is considered time is nothing more than a complete revolution of the Earth around the sun and is a repetitive motion. We have calculated a quarter of a complete revolution of the Earth around the sun for the seasons because the weather conditions change (note The time of the seasons has arisen from the change of weather conditions, and for the rest of the times it will surely have another cause).

But most obscure is what a repetitive motion a second can be to create a minute when it is repeated 60 more times and a clock 3600 more times.
We have to ask the watchmaker what the basis of what repetitive motion is the second? Do we know who made the watch? And where did he live? But we know that the individual watchmaker was very programmed.

This discussion of mine only requires correct thinking and logic, so please do not answer in a hurry and be sure to think about it.

 

[fresh_42]

Hello and !We do not speculate about philosophical questions on PF. There is no end to debates on such subjects. When it comes to philosophy, then even Nobel laureates aren't any better than you and me.

I suspect that there are already many threads on PF about the concept of time, so maybe you want to have a look at them first.

Time is what the clock measures, or in relativity, what is needed to describe events in space and time. There is obviously motion in our universe, and the speed of light is probably the most important constant of all. So it doesn't make much sense to call it an illusion if it is so crucial not only to physics but also to our daily life.

Maybe you meant something like this:
https://www.quantamagazine.org/the-...-questions-about-the-nature-of-time-20210831/

Unfortunately, this isn't an allowed source either. It is entertainment, not science. And I haven't found any references to scientific papers either.

@bhobba once said:

Fundamental to physics is the concept of an inertial frame where all points, directions, and instants of time are equivalent. That is independent of how you view time. Perform something, the same thing, the same thing again, over and over. Since all time instants are equivalent, they each take the same amount of time, whatever that is. We count it and hence can assign values to a time coordinate. That is all that is required to do physics. Unless experimentally testable, anything else is mostly just philosophical waffle. A few things like its relationship to entropy is not, and they are OK.

I like to add that the relation of entropy with thermodynamics also requires a scientific foundation in order to talk about it. And, no, Wikipedia is none. Those terms have to be precisely defined. Too many different interpretations of entropy are around (information, stochastic, physics).

 

[Evo]

And with that, this thread is closed.