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Blackhole Warfare Strategy
(kbin.social)
Time moving slower inside a black hole's gravitational field would have the opposite effect from what you're thinking. Like in the movie Interstellar, when they go down to the water planet they say "one hour on this planet is equivalent to 7 years on Earth".
So any civilization within a black hole's gravity well would actually be at a huge disadvantage and have considerably less time to prepare.
Sorry - just saw this now.
I think you're right, I'm thinking about it exactly opposite. That was a good example, thank you!
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