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Perhaps the simulation isn't time reversible, but that doesn't say anything about the reversibility of the laws of physics and the reversibility of the universe
by incompatible 8y ago
Perhaps the simulation isn't time reversible, but that doesn't say anything about the reversibility of the laws of physics and the reversibility of the universe. I.e., reversing the entire universe would still run the simulation backwards, correctly, because it takes place at a lower level.
However, I think the point of the article is that given a deterministic universe, even though it doesn't "run" forwards or backwards but just exists throughout space-time, observers inside the universe can still observe an "arrow of time" in the direction of more stability.
- throwawaymanbot 8y agoWould it be that the very fact that we are observing it, is making it chose a direction (Which can only be forward) --Might it be possible to exist in a state where observation does not affect the observed?
- jbay808 8y agoYes. Or restated, that it's almost only ever possible to form memories of a universe that has increased in entropy.
- strainer 8y agoIm not sure. Simulated observers could also observe the direction of time progression; that orders in the past become irrecoverable to them is a mechanistic result of infinite precision not being preserved from one moment to the next.