I still love that movie IDC what anyone says lol

I think it’s fine if you’re okay with the call from God part of it

That’s true the constant rate I mentioned would vary with the surface area of the black hole as it changes but the volume would increase exponentially faster

I know a little bit but I’m not an expert.

My understanding is hawking radiation will produce a rate of mass evaporating that’s fairly consistent over galactic time scales, so you just need to make sure the black hole is big enough to “suck” more mass in via gravitational attraction per given time period than evaporates through hawking radiation.