out of whack
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So far I have been talking of change as "the fact that things are not constant". In this respect, change happens in the universe (all that exists) as long as just one thing changes within it. From this point of view, it does not matter if some constant item does not change while other things do. If some constant entity exists, it must still interact with the changing universe in some way. If it did not then it would be immaterial and irrelevant to anything, we could not even claim that it exists so we would not be talking about it. Regardless, one constant entity would not prevent other changes from happening. In other words it would not "stop time" (to use a bad word).
My point of view is that using the undefined word "time" renders this thought experiment invalid. Efforts to make sense of undefined text are wasted. Since I find "time" meaningless in the absence of change, the experiment sounds like this to me:
We put a constant item in a box, count 3600 swings of the pendulum and open the box. Does it mean that no change happened inside the box? (Yes, the item was constant.) Is there a difference in the extent of change inside and outside the box? (Yes, change happened outside, no change happened inside.)
Simple. Clear.
The problem with this "time" thing is that it is entrenched in popular culture. Time travel in particular is a popular topic. We spend a good deal of our time in impossible fantasies about it. We encounter paradoxes that probably exist only because of an impossible premise: if you see that time is just change then you realize that you can't really travel through "the fact that things are not constant". Furthermore, if you get rid of the notion of time in favor of change, science still works: a second is already defined by a specific number of changes.
DaveC426913 said:What if we put this unchanging thing in a box. We let an hour pass and then open the box. Even of nothing changed in the box, does that mean time stopped passing inside the box? Does that imply that, when the box is opened, there will be a one hour lag between the time inside the box and the time outside the box?
My point of view is that using the undefined word "time" renders this thought experiment invalid. Efforts to make sense of undefined text are wasted. Since I find "time" meaningless in the absence of change, the experiment sounds like this to me:
We put a constant item in a box, count 3600 swings of the pendulum and open the box. Does it mean that no change happened inside the box? (Yes, the item was constant.) Is there a difference in the extent of change inside and outside the box? (Yes, change happened outside, no change happened inside.)
Simple. Clear.
The problem with this "time" thing is that it is entrenched in popular culture. Time travel in particular is a popular topic. We spend a good deal of our time in impossible fantasies about it. We encounter paradoxes that probably exist only because of an impossible premise: if you see that time is just change then you realize that you can't really travel through "the fact that things are not constant". Furthermore, if you get rid of the notion of time in favor of change, science still works: a second is already defined by a specific number of changes.