What happens inside a black hole?
For a large black hole, nothing local happens to a falling teacup as it crosses in, and what it loses is the way back out. The horizon is a surface made of no material, defined by a failure, since signals cross it inward and never outward. Every question anyone outside could ask about the cup has lost its channel. From outside, the whole hole is three numbers, its mass, its electric charge and its spin. Its memory sits on the surface, a quarter of the horizon's area in units of the tiny Planck area, and nothing in that count refers to anything inside. The smooth geometry describing the fall summarizes settled regions on scales large compared with one step of repair, and at the grain itself it has nothing to say.
Also in Chapter 25: Why Does Gravity Look Like Geometry?.
This answer comes from OPH, Observer Patch Holography. OPH is a rigorous, consistent and complete description of the unified, self-creating computational Universe we inhabit. Its consistency is machine-checked: the fixed point at its core is constructed explicitly, and a theory with a model contains no contradiction.
To understand OPH and check every step yourself, start with the free book Reverse Engineering Reality. It builds the theory from the ground up, and the OPH Notebook answers your questions while you read.
read the free bookask the notebookor ask sage:read chapter 24: Why Does a Region's Memory Scale With Its Surface?watch a universe make its own particles