In a video on YouTube, the scientists at Minute Physics attempt to answer the question: “What would happen if an immovable object met an unstoppable force?” Their answer? “If two infinitely massive, unacceleratable objects were moving towards each other and collided . . . since by definition it’s not possible for the velocity of either of them to change, the only possibility is that they pass right through each other with no effect on each other at all.” Huh?