“There are patterns within the dimensions,” Paul insisted, never looking up again. “Mathematical parallels. It’s plausible to hypothesize that these patterns will be reflected in events and people in each dimension. That people who have met in one quantum reality will be likely to meet in another. Certain things that happen will happen over and over, in different ways, but more often than you could explain by chance alone.”

“In other words,” I said, “you’re trying to prove the existence of fate.”

I was joking, but Paul nodded slowly, like I’d said something intelligent. “Yes. That’s it exactly.”