Ah, yes, I do recall reading about that somewhere. That is an interesting prospect, with a very high mass-to-energy efficiency. Of course it requires careful m

Ah, yes, I do recall reading about that somewhere. That is an interesting prospect, with a very high mass-to-energy efficiency. Of course it requires careful management of inflowing matter. And you can shut if down if needed by stopping the inflow, assuming you have enough stored energy to recreate the micro black hole sometime later.