This is how Ed Fredkin explained the nature of energy to me: There are two kinds of energy. Momentum is information disparity in space, and matter is information disparity in time. I don't even know if it is true, but it is a gem of deepest insight, if you can see it.
Do you suggest that space time is too messy to support his deterministic automata dynamics, or more messy than suggested by his model, or not messy enough?
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I mean that it is exceedingly hard to get relativity emerge healthy from these types of models
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Most of them violate lorentz invariance too much to stay in the game
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