Marginally Outer Trapped (Open) Surfaces in 4+1 Dimensional Schwarzschild In the case of binary black hole mergers, the surface of most obvious interest, the Event Horizon, is often computationally difficult to locate. Instead, it is useful to turn to quasi-local

Holographic Complexity and Thermodynamic Volume I will discuss recent work exploring the holographic complexity conjectures for rotating black holes. A relationship between the complexity of formation and the thermodynamic volume of the black hole is found, and I discuss the