“…The D1D5 system has proved extremely useful in studying microscopic features of black holes such as the counting of black hole microstates [25], reproducing greybody factors in Hawking radiation [26]. Much about microstate geometries can be learned from the the D1D5 CFT at the orbifold point where the theory is free [27,28,29,30,31,32,33,34,35]. However, if one wants to understand dynamical processes in supergravity, such as tidal effects and the scrambling of probes one must turn on an interaction in the CFT [36,37,38,39].…”