On 8/25/2019 12:50 PM, Jason Resch wrote:
What's the difference between abstract and concrete? I think it's only a matter of relative perspective. Other universes to us seem abstract. While to people in other universes ours would seem abstract. Do you agree?
No. The difference is one of completeness. A abstract something is incomplete. The verb is "to abstract" meaning to leave aside irrelevant things. But a universe doesn' t have anything "left aside". That's why I look at it the other way around when you talk about a "simulation" that is isomorphic to our universe. If it's a /complete and perfect simulation/, then it's a universe itself. It can't be /just/ a mathematical structure, it's identical to what you think it is "simulating".
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