I suppose this means that if you try to shoot a charge into one of these “extremal” black holes, the charge will be repelled outside the event horizon.
You could be right, but how? I inject enough electrons into the black hole to maintain it at as high a charge as possible. Then I launch more electrons from a platform that is doing a slighshot pass right by the event horizon. And I dedicate the energy from a nearby star to shooting photons at it to force the extra particles in...
And even forgetting extreme options. Just why? If the black hole is not charged to a level that will repel electrons it will attract them. Add more and they will just hover there without accelerating. Add more still and they will be repelled. This works unless weird math comes in to play.
Red suggests discharge via Hawking radiation. I would not be able to rule out some sort of asymptotic increase in Hawking Radiation discharge toward my electron input rate. (Basically because I don’t know how Hawking Radiation works.)
You could be right, but how? I inject enough electrons into the black hole to maintain it at as high a charge as possible. Then I launch more electrons from a platform that is doing a slighshot pass right by the event horizon. And I dedicate the energy from a nearby star to shooting photons at it to force the extra particles in...
And even forgetting extreme options. Just why? If the black hole is not charged to a level that will repel electrons it will attract them. Add more and they will just hover there without accelerating. Add more still and they will be repelled. This works unless weird math comes in to play.
Red suggests discharge via Hawking radiation. I would not be able to rule out some sort of asymptotic increase in Hawking Radiation discharge toward my electron input rate. (Basically because I don’t know how Hawking Radiation works.)