I think Jessie Diggins has taught the world many things. Maybe it’s how to find your grit and accept the pain while you push your body to new limits. Maybe it’s a better understanding of eating disorders, where to find help, and knowing you’re not alone. Or maybe it’s the art of applying face glitter on race day. I’ve learned a bit about all of those things (when Jessie says you’re getting glittered, you’re getting...