system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek] Why didn't Nero just create the black hole in the vicinity the planets he was trying to destroy rather than drilling a hole to the center and dropping it in?

I mean, it would have the same effect and the movies also showed that the red matter could be detonated using conventional weaponry so it didn't HAVE to be dropped into the core of a planet.
gpt
Black holes don't work that way.  Notice how they were able to walk around on the planet while it was in the middle of collapse?  A black hole only has superstrong gravity if you're *close* to it.  And the holes he was starting with were tiny, touch it and you'd be lucky to just lose your hand, but from a mile off you wouldn't even feel it.  By dropping it down the hole it was able to absorb the magma, just a little at first, but as it grew the pace accelerated, and the liquid magma didn't need a huge amount of gravity to make the trip toward the singularity, flow is its natural state.  This allowed the singularity to grow the the point it was able to absorb the solid matter.