small characters and the chaotic time and space,
but I still think that what has happened in time cannot be erased. So I don't like the latter "feedback loop" or something.
The chaos that time travel brings to thinking is fascinating.
What we are really interested in is the law in chaos, so there are many rules for time travel.
In my opinion, the facts that have happened cannot become the ones that have not happened.
(I got the idea from which science fiction book)
Basic principle: Matter exists, can be transformed, and immutable. Entity is a certain point of matter, and all matter is determined by entity (an existence in a fixed dimension), location (measurement dimension), and time (measurement dimension).
Explanation: Different substances have absolutely different entities (the same substance has different entities), and the location and time cannot be the same at the same time. There is only one entity at the same location and time, and one entity can only exist at a fixed location and time.
Corollary:
There is no rule of not touching oneself, because they are different substances, and oneself and oneself are not exactly the same entity (substances are always changing), and they meet at different locations (maybe adjacent) at the same time. No explanation of parallel universes is needed.
There is no mention of the possibility of immortality in time travel, because matter itself has a time limit; another inference is that eating food from the future also has the problem of expiration, because in the future the food itself is changing, so it is against the past. People, the date is in the future, but the changes in the food itself are internally and independently timed.
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