It's sort of like taking a very big thing, like — a star, and looking at it from very far away, so it gets very small. And then putting it inside a small thing that's quite close. Except instead of distance it's time, and instead of a star, it's a black hole, and instead of being close, you're inside it. Do you want the mathematics? Because I can try and translate them into something this communicator understands. Not that that means you will.