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It’s not just the laws of physics. If you assume the past cannot be changed then you can’t physically interact with it, and you can’t even observe it (observati
by felix318 5y ago
It’s not just the laws of physics. If you assume the past cannot be changed then you can’t physically interact with it, and you can’t even observe it (observation is interaction). And if you assume the past can be changed then the universe makes no sense and all discussion is futile.
- Beldin 5y agoWe observe the past all the time. It's most noticeable in astronomy, but since the speed of light is finite, it's impossible to observe the present. Ever. Any observation is based on light (or something slower) travelling to you. The universe may not make a lot of sense, but there is some sense in it. Futility of discussion: I can certainly understand anyone feeling like that after the last two years. But don't give up hope!