Alex, Janet, and Julie are new subscribers — welcome! (Extras is blowing up!) This week, enjoy articles about resilience, the current state of teenagers, and how wealth determines your life expectancy even more than it did in our parents’ generation. (And please don’t unsubscribe just because I’m including an interview with Justice Scalia, who, by the way, had 28 grandchildren.) Have a wonderful week, and thank you for reading Iserotope Extras!