Another thought about "time" or duration. As we sit and experience duration event we can mark that duration sequentially as in saying or with a pen and paper, 1 second, 2 second, 3 second and so on.

Description and prescription: this marking or counting "time" is the description of the duration.

Once the event of the mark is made, it would be another event to undo the mark, that is the fact of reversing time (as if it could be done) is an event or an occurance.

Grandfather paradox is a way to explain the fact reverse time travel as in undoing events is not possible because the reverse time travel itself would be an event sequentially starting at the point of a supposed reversal of duration "time". So to erase the time stamp is an event that takes a duration of measurement time. Even if instant reversal "going back in time" were instantaneous, it is still an event or occurence.

This is where the time dilation thoughts also have me think. 2 people get the same rythm of counting time together. 1 second, 2 seconds, 3 so on. Then, one person takes off like superman going the speed of light keeping the same rythm while the other person doesn't move relative to the one going fast.

The one that takes off fast then returns, would be counting at a lower number when they get back together according to time dilation.

The person that went fast returns counting, say, 20, 21, 22 ... where as the still person, according to time dilation, should be counting something like 35, 36, 37 ...(my number examples are not specifically the mathematical numbers, just putting some for this point).

So, it is said, "time" slows down for the faster observer.

I still try to mentally figure out how the faster velocity changes the counting rate to a different ratio.

After me some time asleep, I'll come back to this.

I understand with in academia, they use the word "time" to label the duration. There is something to seperate, call it splitting hairs if you must.

The duration is an event the "thing" measured by the standardized unit of time.

When I here people talk about time, it sounds so erroneous to me.

I sit still, calm and observe. In a sense I am not doing anything but yet, I am doing, as in my body is functioning with chemical reactions one after the other. I experience duration of sitting still and observe another duration of, let's say light waves passing thru the universe.

The sequence of many chemical reactions in my body while I sit still can be observed by the same measurement of time that I use to observe light crossing the universe or from the Sun as it hits the Earth. These are different and independent events. So let's lay, I find a way to reverse "time" for me. Reversing my duration, would not seem to have a direct influence on the duration of light passing across the universe.

Where as when "time traveler's " speak of going back in "time" they speak of "time" reversal as if all events are rewound and their duration is "undone" putting them back into a previous state of "time". This is saying they think the "time" is a controlling factor for all things that to reverse "time", all things are forced to reverse.

Am I comming across clear? I know I understand what I know I understand. It's a matter of, am I transfering my understanding adequate for you to understand?

Interesting, but I did not hear any idea of how his discussion(s) could be tested/falsified.

Time is the measurement of duration. I am not a fan of the Big bang myth, but can understand its usefulness. Time dilation may be the only way I could see "time" being different at the same time. Observer with s clock goes at biblical created speed. Observer with a clock goes at big bang speed. Observer going biblical creation speed observed creation in 6 days. Observer going at big bang speed observed creation at almost 14 billion years.

How is time going in different directions for same observer? He uses Mountain analogy of 2 observers going down mountain on opposite directions. This is supposed to explain time in different directions but it seem sd it would require different observers and one observer doesn't seem to me to be capable of observing this time in different directions.

Time in 2 directions is like the time I blow up a balloon is the same time I do opposite and let air out.
It's like, blow up a ballon and let the air out at the same time. Start with a balloon that is full of air but deflated. Then let the air out of the balloon while blowing up the same balloon so the end result is a deflated balloon full of air.

He talked about his variety which I already understood.

He mentions this point that goes to more complex variety of shapes. He has the point but he stated he didn't know that starting shape? It is the point, a spherical dot, the most basic fundamental shape. Only one surface.

Time dilation where observers at different velocities experience this time difference is something I still for years have done my thought experiments. Vaguely remember something about an outer space experiment and the clocks going different speeds experience very small time dilation difference.

I am little tire, statements may seem a little scattered but is an interesting discussion.