There are some pretty close physical analogs that are fun to think about. You cant move a black hole by exerting physical force on it in the normal way so practically infinite gravity wells are like a immovable “object”, though if you’re clever and nerdy enough you can cook some fun ways to harness its gravitational rotation into a kind of engine, or throw another black hole at it to create gravitational waves which are like a kind of unstoppable force which can just barely be detected with our finest LIGO sensors spanning a sizable length of the planet.