The core of the story and the plot arrangement are great, and the performance of the actors is even better. The performance of Bruce Willis and Pete in this drama is the best I have watched in their film.
Regarding the causal theory of time and space travel, many films and theories are talking about it. This film is fatalistic, everything is doomed, mutual cause and effect, and crossing does not change anything. I used to think a lot about time travel but didn't understand it. I saw this film today and I thought about it again.
1. Theoretically speaking, information spreads at the speed of light. As long as someone is faster than the speed of light, you can know before the event occurs relative to you. But here are two spatial locations and two objects. The event has already happened, but only for you. For this observer, it hasn't happened yet. As for going back in time and going back in time, this kind of time and space shuttle is just an imaginary, and there is no evidence to support it. If v is greater than c, the relativity formula is mathematically meaningless and cannot be calculated. Therefore, the theory of relativity does not say that v is greater than c, which will turn back the clock. It just says that when v is close to c, your time will be slower than normal.
If you can travel through time and space, then there will be a paradox
For the explanation of the paradox, 2.1 fatalism, there is only one timeline, everything is doomed, and what you do in the past affects the future when you come back. You can’t change anything. It’s a cycle. For individuals, you may have two states that exist in the same time and space at the same time, such as Willis when he was young when he saw himself being killed. I used to think this situation was ridiculous, but now I think about it, so what? Why can't it happen? Fatalism has an advantage. There will be no messy problems. What should happen will happen after all, and what doesn't happen will never happen. No matter how many times the people in the future travel to the past, nothing will change. Then this will cause a problem. After the invention of the time machine, the history and future before and after are all written, so who has such a great power to determine the life of the universe? Time? I think time is not so great. He hasn't surpassed matter. It was with the big explosion of matter that time and space were created. Of course, we don't know what state it was before the Big Bang, whether time and space existed in other forms.
I think of an extreme situation. Since there can be two you in the same time and space, as long as you travel back from different times, there can be 100, 1,000, and 10,000 you in the same time and space. If this is the case, the earth can increase out of thin air. Hundreds of millions of people. Think about ten of you and ten of your wives living in the same room. Is it scary? Moreover, it may happen that the person in "Pre-Destination" gets on himself and gives birth to a vicious circle like himself. If a person can produce sperm and eggs through special means, then it is entirely possible. How can this be explained?
2.2 Parallel universes, I think there is a problem. Parallel universes are constantly being produced. How can the conservation of matter and energy be achieved?
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