What are the properties of Time?
If you can give me one single (causal) property of time, you'll receive a free trip to Stockholm.
https://en.wikipedia.org/wiki/Time
The reason no definition of time exists is the fact that time does not (cannot) exist independent of another causal event. It can only become measurable as an emergent measurable bi-product of a sequential action. (2 + 2 = 4 + 3 seconds).
Hence the term
spacetime, where time exists only as an emergent phenomenon of the continued existence of space. Take away space, you take away time, no?
There is no independent thing named Time. It is an emergent phenomenon associated only with duration of change.
The idea of time-travel is ludicrous. We can go back and forth in space, but we can never go back in time, because without space time does not exist. The "arrow of time" always points toward the future as an emergent property of duration into the future.
You cannot go back and
undo an event or sequence of events which have already happened.
That's pure scifi........
I can't believe science messes with this at all. It is trying to define "God" by its other name "Father Time". Science doesn't bother with that does it?