[aifooh7Keew6xoo]

The interesting implication of this particular interpretation to me is not that God has a PC but that everything running on God's PC has exactly the same PC (because it can also manipulate mass falling into a black hole).

I feel like the author doesn't really need to introduce the concept of black hole computation to draw an equivalence between simulation theory and interacting with reality to achieve an intended state, though.

In a sense any time you manipulate reality you are simulating a new reality in a computational subset of your prior reality, with similar implications whether or not any part of the computation falls into a black hole or involves digital logic.

I think at least some part of simulation theory must be true because it is trivially equivalent to having consequences in reality, and black hole computation as described would just be a limiting case where the mass-energy is potentially fully occupied by a single computation approaching infinite space and time complexity.