...I imagine a black hole to be so massive not even light can escape its gravitational pull. Which technically means the escape velocity is the speed of light. So anything at the event horizon should be at the speed of light.
Also consider that at the event horizon, space-time itself is travelling at the speed of light towards the black hole.
So when the medium light is travelling through is travelling at the speed of light, light can't escape; i.e. the event horizon...
Think swimming upstream when the current is faster than you can swim; the steepness of the hill has little consequence.
Having said that, I'm also not a physicist, but I also came that same conclusion...
Remember that to get gold you need to provide gold.
Not in the long term, Nanofabrication and eventually sub-atomic-fabrication, will let us literally re-build lead into gold, all ya need is the right amount of electrons, protons and neutrons to feed into the machine. My point is, there will be a point where the evolution of "3d-Printing", will destabilise the basic premise of economics, haves and have-nots...
But yes I was eluding to the fact that eventually currency will go totally virtual, if there is even a need for money by then; Atomic fabrication has the potential to eliminate poverty and free the world from the devastating effects of global industrialisation, if we let it....
Not *all* manufacturing will cease,
Someone will need to make the first one of these units...
It's a naive, domestic operating system without any breeding, but I think you'll be amused by its presumption.