The walk to daycare hit me with unexpected clarity. Fifteen years ago, I was in LA, working as an assistant principal, living what felt like a completely different life. And yet—fifteen years doesn't feel that long ago. It feels recent enough that I can still taste the coffee from my favorite café, still remember the weight of my keys in my hand, still feel like that person and this person are connected by something more than just time.

But here's what stopped me in my tracks: if fifteen years back doesn't feel like ancient history to me, then fifteen years forward from birth isn't that far either. That high schooler I worked with today? They're not that far from being brand new.