I like the comparison between the incredibly inefficient Bogosort: 1) Shuffle the list. 2) If it's sorted, halt. 3) If it's not sorted, go to step

I like the comparison between the incredibly inefficient Bogosort: 1) Shuffle the list. 2) If it's sorted, halt. 3) If it's not sorted, go to step 1. and the incredibly efficient Quantum Bogosort: 1) Shuffle the list. 2) If it's sorted, halt. 3) If it's not sorted, destroy the Universe. According to the Many Worlds interpretation, step (1) creates multiple Universes, each with a different ordering of the list. Step (3) ensures that, by the anthropic principle, we must be in a Universe where the list was sorted correctly (otherwise we wouldn't be around to observe anything).