 Well, I realized that stars really shaped my life profoundly. And perhaps that's not so surprising for somebody who is a cosmologist by profession. And therefore, my very profession wouldn't even exist if it wasn't for the stars. But perhaps I hadn't realized fully how the stars had really changed the course of my personal history as much as my professional history. And that's also how I chose to actually open the book and where I tell a story that I think prior to actually writing it in the book, I probably never told anybody about.