1 Terry: How do we reassemble Steve from his micro-components?
2 Simon: Spreading Steve among an infinite number of tiny copies has smeared existential risk evenly throughout the universe.
3 Simon: To collect him together again, we need to concentrate risk! Squeeze as much into a small area as possible!
3 Terry: How?
4 {Simon holds a phone}
4 Adam: {over phone} You've reached Adam and Jamie. We can't come to the phone right now, we're under Loch Ness!

Actually, I suppose if their submarine exceeds its crush depth, that could very quickly squeeze a lot of risk into a much smaller space.