The same strategy as if a massive star was on a collision course with earth. Namely, kiss your butt goodbye. But it's not likely to happen.
There's nothing magically destructive about a black hole. The free-floating ones in our galaxy have masses comparable to stars, and they have exactly the same gravitational effects as stars. If we found one within a few light-years of Earth, the only effect on us would be a bunch of ecstatic astronomers. The rest of us would (or rather, should) just call it Tuesday.
There's nothing magically destructive about a black hole. The free-floating ones in our galaxy have masses comparable to stars, and they have exactly the same gravitational effects as stars. If we found one within a few light-years of Earth, the only effect on us would be a bunch of ecstatic astronomers. The rest of us would (or rather, should) just call it Tuesday.