The interior of an old black hole is encoded in the Hawking radiation. This seems to be the implication of recent computations of the Page curve. We take this idea to its logical conclusion, modeling old black holes as quantum codes embedding a large number of degrees of freedom (the interior and semiclassical radiation) into a smaller number (the stretched horizon and physical radiation). I will prove that such codes exist, and explain their novel properties and what they can tell us about black holes.
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Recordings of past talks can be found here: www.youtube.com/channel/UCw9LdPQ5t7Q7muD0qzn70TA