(3)
"random"
How did you restore order to a world that had lost its marbles?
By some remarkable turn of events, they were safe, and the Scarecrow was marrying the Wicked Witch.
"It's impossible," she whispered as he slid the ring onto her finger.
"Improbable," he corrected her gently. "If our lives replayed over and over, and by a random pool we lived every possible outcome, the number of lives in which we met would even out in a fixed ratio. You see, Fae, this mixed up life we're living isn't random at all. It's bound by mathematical law."
Elphaba kissed him.