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jvdubois comments on Timeless Identity - Less Wrong
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Why do timeless physics require absence of repeating? How would things change even if universe repeated itself?
Even then there would be no difference between repeating and non-repeating universe.
As an example, try to imagine 100 universes, each one exactly the same as our, in every last detail. Is it somehow different from having only 1 universe? No. Even infinitely many universes, as long as they are exactly the same, don't make any difference.
Now try to imagine one universe that somehow (despite the second law of thermodynamics) repeats. It follows the same laws, so it repeats exactly the same way, in every last detail. Is it somehow different from only repeating once? No.
I think this sentence does not make sense. If a universe has some configuration, then it IS the UNIVERSE. It does not make sense that there are 100 of them
I imagine it like a sequence of numbers. There is 0, then there is 1 etc. It does not make sense that if you have sequence:
1,2,8,5,1
That there are two different occurences of a thing "number one. No matter how "many times" the number was used, it is still fundamentaly the number.
I think Elizier himself used a very good example of how things work like. Imagine that everything you know about our universe can be coded into a sequence of numbers. Everything - all its history etc. Now what meaning it has from inside of this universe that some powerful alien race with a lot of computing power can take this sequence and load it into a memory of some supercomputer? What if they load it and delete it it twice or million times? What if they load it on two computers simultaneously? It does not matter from within the universe. It just is.