My first glitch happens when trying to parse "computations (...) which cannot be implemented inside of black holes". My assumption is that whatever computer is

My first glitch happens when trying to parse "computations (...) which cannot be implemented inside of black holes". My assumption is that whatever computer is used it is falling between the event horizon and the singularity. The masses involved are the mass of black hole before the object falling into it and the mass of the object. The amount of computation that can be done is dependant on the mass of the object and the time available. The time available is some kind of product of the mass of the object and the mass of the black hole. As the object is reaching the event horizon, the event horizon expands to accommodate the object, but this expansion isn't super simple as my understanding the expansion itself progresses at a speed of light (the other side of the black hole takes time to be affected by the object falling).