Black Holes, Holography, and Quantum Error Correction

<!--HTML--><p>How can it be that a local quantum field theory in some number of spacetime dimensions can "fake" a local gravitational theory in a higher number of dimensions?&nbsp; How can the Ryu-Takayanagi Formula say that an entropy is equal to the expectation value of a local operator?&nbsp; Why do such things happen only in gravitational theories?&nbsp; In this talk I will explain how a new interpretation of the AdS/CFT correspondence as a quantum error correcting code provides satisfying answers to these questions, and more generally gives a natural way of generating simple models of the correspondence.&nbsp; No familiarity with AdS/CFT or quantum error correction is assumed, but the former would still be helpful. &nbsp;</p>