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Define as a preregistered set of physically admissible future protocols after the cutoff. It must specify which controls Alice retains, their duration, energy, acceleration, localization, and boundary conditions. For each u , let and be the completed conditional states on the declared horizon algebra. Then define an irreducible distinguishability envelope
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Equation 38 · Evolutionary Physics
How Fast Can a Horizon Learn Which Path You Took?
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Define as a preregistered set of physically admissible future protocols after the cutoff. It must specify which controls Alice retains, their duration, energy, acceleration, localization, and boundary conditions. For each u , let and be the completed conditional states on the declared horizon algebra. Then define an irreducible distinguishability envelope