Everyone should think about such questions as they grow up and build their worldview: what is the edge of the world or the universe, and what is outside the universe? Is our world real? I have watched a lot of sci-fi films since I was a child, such as "2001: A Space Odyssey", "The Matrix" and "Westworld". These films have stimulated my interest in this issue even more. And the strange thing is that every time I watch this kind of movie or a documentary like BBC "Planet", I always fall into a strange state, that is, I don't want to do anything as if there is no point in doing anything, but every time it recovers after a few days It's normal, so I later attributed this state to "moaning without a problem". At the same time, as I gradually gained some superficial understanding of "relativity" and "quantum mechanics" due to interest, it seemed that I had some ideas about the problems at that time. I began to think that thinking about the boundary of the universe is meaningless at the physical level. The universe is not Infinite but there is no concept of "boundary". Since then, my thinking about those problems when I was a child has come to an end. Until today, I watched a movie "Another Dimension Hacker". The opening line of Descartes' "I think, therefore I am" seemed to wake me up, and the issues I had thought about before seemed to be clear. "I think therefore I am" roughly means: the only thing I can be sure of is the existence of my own thoughts, because when I doubt others, I cannot doubt my own thoughts at the same time. (From Baidu) Combining the plot of the movie, I made a hypothesis: our world may also be constructed by another intelligent creature or an existence that we cannot understand, and even the physical theories we know and are exploring are in the simulator We all exist in super-computing computers created by the "creator" using another set of physical theories that we can't understand, and the universe runs automatically under this set theory. write. And we can never "break the wall" using the established physical theories. This assumption can never be falsified or proven. ps: I also have an interesting suspicion: every time I enter that strange state, I will recover naturally after a few days. It may be that the protection mechanism is set in advance, because it may be "broken" if it is in that state all the time. This may be the limitation in "I think, therefore I am", we cannot use the theory of the universe to confirm our doubts while doubting the world outside the universe. I don't know if my philosophical blind understands this sentence correctly...
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