We're not the same people we were then. We've changed, we've grown.

grown-ups always say that things are complicated.

Miles: Well, things are kind of complicated right now. When you’re
a grown-up, you’ll understand.
Jonah: I don’t want to be a grown-up.
Miles: Why not?
Jonah: Because grown-ups always say that things are complicated.

Things changed, people changed, and the world went rolling along right outside the window.

Yet I have come to believe that while the past is unchangeable, our perceptions of is are malleable...

I've come to believe that in everyone's life, there's one undeniable moment of change, a set of circumstances that suddenly alters everything.