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Will_Sawin comments on Model Uncertainty, Pascalian Reasoning and Utilitarianism - Less Wrong
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I think the universe implicitly defines a reference point in the physics. By way of illustration, I think Tegmark sometimes talks about an inflation scenario where an actually infinite space is the same as a finite bubble that expands from a definite point, but with different coordinates that mix up space and time; and in that case I think that definite point would be algorithmically privileged. But I'm even fuzzier on all this than before.
I think it depends on the physics. Some have privileged points, some don't.
But surely given any scheme to assign addresses in an infinite universe, for every L there's a finite bubble of the universe outside of which all addresses are at least L in length?
If a universe is tiled with a repeating pattern then you can assign addresses to parts of the pattern, each an infinite number of points.
I don't know how this applies to other universes.