A Coincidence Across Seven Time Zones

So I'm talking to my friend Deb (who is normally in Ireland but currently in Romania) and she randomly works in a quote from Robertson Davies about education being a shield from experience. And I know this quote because it's not just any Davies quote, it's from the book I'm reading right now, World of Wonders. What is the chance of that? That I was reading the book now, and not later, that she remembered a quote from something read in high school, and then that it even came up in the course of conversation.