I have a vague notion from reading science fiction stories that black holes may be extremely useful for highly advanced (as in, post-singularity/space-faring) civilizations. For example, IIRC, in John C. Wright's Golden Age series, a colony formed near a black hole became fantastically wealthy.
I did some googling, but all I found was that they would be great at cooling computer systems in space. That seems useful, but I was expecting something more dramatic. Am I missing something?
I did some googling, but all I found was that they would be great at cooling computer systems in space.
When you're sufficiently advanced, cooling your systems, technically disposing of entropy, is one of the main limiting constraint on your system. Also if you throw matter into a black hole just right you can get its equivalent (or half its equivalent I forgot which) out in energy.
Edit: thinking about it, it is half the mass.
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