@The_Lagrangian Having every permutation is different from running every computation if we require causal structure
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@The_Lagrangian actually the causal structure is perfectly well preserved (when seen from the inside)
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@The_Lagrangian What if there isn't an inside when there's not an appropriate causal structure? That's my claim.
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@The_Lagrangian thought experiment: take a machine with finite states, the computation is a path through these
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@The_Lagrangian step 1: compute a few (or a lot) of these transitions
step 2: compute one
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@The_Lagrangian now take [2] and one transition from [1] so that "[2], then [1]" is causally coherent
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@The_Lagrangian all under the assumption that you somehow need to "physically realize" a computation
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@The_Lagrangian this is shuffling the computation in outside causality while inner causality is preserved
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@The_Lagrangian I don't get what this bit means. twitter.com/allgebrah/stat & maybe too simple to have an inside view
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Replying to @allgebrah
@ProofOfLogic @AlleleOfGene @The_Lagrangian now take [2] and one transition from [1] so that "[2], then [1]" is causally coherent
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@The_Lagrangian Well ok, beings are living in a finite state universe. So then we're running two steps? Or more?
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@The_Lagrangian two is enough for purposes of proof, more are just induction
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@The_Lagrangian useful references here: en.wikipedia.org/wiki/Reversibl en.wikipedia.org/wiki/Reversibl