How do we experience time?


#61

My apologies.

I agree with you. If I came across disagreeably, it is because I was questioning STT’s concept. You gave a better description of time when you said it was analogous to length., and I was trying to build on that to describe time.


#62

This article does not describe time as an entity. It says “In Einstein’s theory, space and time are aspects of a single measurable reality called space-time.” Entity is usually applied to a separate being, but time is an aspect of space-time, not a separate existing-in-itself thing.


#63

Can’t you find even one particle which is not in motion in the vast universe?


#64

In this article space-time is discussed as a fabric. Time is a separate thing without it you could not have space-time.


#65

In what way is time a “separate thing”? As i said, the article describes time as an aspect of space time, not a “separate thing.”

The article also addresses the issue of motion. “Matter and energy are two expressions of a single material.“ A motionless particle, if it is matter, embodies energy and movement.


#66

Time is fundamental thing/entity in reality without it no change was possible. I have an argument for that. Consider a change in a system, S->S’. These states should be in different points related to a variable otherwise state of affair is ill-defined. You however need a duration between two points otherwise change does not take place. This variable is therefore time.


#67

As I said before, the variable measuring duration in your example is time. There is no reason to think it is a separate thing, rather than a different quality of the two states.


#68

Then you didn’t pay any attention to my argument. Time is fundamental. It is fundamental since without it no change is possible. This is clearly argued in the argument.


#69

No, can you?


#70

Yes. The chair that I am sitting on right now.


#71

Time is fundamental because it is an intrinsic quality of spacetime, not because it is a separate entity.

Your chair is spinning around the earth’s axis at some fraction of .5 km/s, depending on your location, and is going around the sun at about 30 km/s.

The point is that space and time are not distinct, but interrelated. And matter and energy are not distinct but “two expressions” of one thing.


#72

Yes, space and time are interrelated but they are distinguishable therefore they are different entities.


#73

Like your height and your weight? They are distinguishable, so they are different entities?


#74

Yes, like that. Although height is not an entity whereas space is.


#75

Why is height not an entity?


#76

Sorry, it is.


#77

Is moving with the continental shelf, on a spinning planet, orbiting a star…etc etc. If you think you’re chair is stationary, there is really no point in continuing this conversation


#78

Then I guess by your own definition of time, you’ve experienced it.


#79

As sequential durations.


#80

Yes, I agree with that.

All the best!


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