Time Moves Forward for Obvious Reason?

The structure of the "direction" though is not a property of our energy content, its a property of the gravitational field.

Not a medium, a dimension. You agree that things move through space, yes?

time somehow has a property analagous to space through which things move--

Wouldn't that be putting the carrige before the horse bobc2?

Please don't think I'm trying to be argumentative, DaveC426913,

Are you intending to imply that things move through a spatial 4th dimension?

Or did you mean that things move through the 4th dimension, but the 4th dimension is time,

and time somehow has a property analagous to space through which things move-

-that is, time is some kind of medium in a sense (perhaps not capable of description)?

Hardly. It's a good discussion.

No.

Yes.
Redundant. As a dimension, physical objects move through it.

No. No medium.

Simply that one can identify its location in that dimension with a coordinate, and can measure changes of that object in that dimension by observing a change in its coordinate.
(i.e. t=1 becomes t=2).

Simply that one can identify its location in that dimension with a coordinate, and can measure changes of that object in that dimension by observing a change in its coordinate.
(i.e. t=1 becomes t=2).

If you took a particular snapshot 4 hours after opening the bottle and reversed all the molecules, you would see the molecules all back in the bottle after four hours...


I know... the thought experiment implies lots of simplifications and assumptions.
But the point was to see that there are configurations that do lead to all of them back in the bottle - in the thought experiment the symmetric reversal of any snapshot after opening the bottle is just a way of noticing that every possible reversed snapshot throughout the remaining history of the universe after opening the bottle IS one of those snapshots that gets them back in the bottle.
If you drop the assumptions about determinism, uncertainty, and include everything (like the black body radiation, neutrino and cosmic alpha bombardment, tidal effects, the vibration of the walls etc.) you STILL have snapshots that will result in getting it all back in the bottle - those that DO include every possible influence. The symmetry reversal of getting out and getting in to the bottle was just a means of seeing this.
For example, even if you did include all effects and influences, if you observed all of it getting back into the bottle... then you could reverse those historical paths from there and they would include any and all effects and influences back to the time of opening the bottle (long time) within which would be an infinite collections of snapshots that when reversed would get to the bottle refilled result.

if this is worthy of lockdown (or whatever you call it) I am happy to toss in an equation or something.

Another observation about time that some may have an interest in:

One can only count events not measure their duration because a duration is defined as a counted number of events.

One can only count events not measure their duration because a duration is defined as a counted number of events.

Another observation about time that some may have an interest in:

One can only count events not measure their duration because a duration is defined as a counted number of events.

Another observation about time that some may have an interest in:

One can only count events not measure their duration because a duration is defined as a counted number of events.

Perhaps at an arithmetical level, but then if we make these events infinitely small, don't we tend towards a smooth, continous definition of time? I take it that we can measure time in such a manner that it is not granular.

IH