[It's a good skill, knowing when to step back and be humble about your own abilities and limitations. It's something Arthur had to learn himself, when he was younger. And it's what he's doing now, admitting that he doesn't know, that he can't be sure. They're on the same page of not-knowing, and he's grateful for that, at least. It's not like he expects anyone to have the answers.]

It is. And I remember when my life was so great I didn't think anything could ever go wrong. [He breathes out quietly.] I will be careful, I know what could go wrong... I just don't think I can lose another child.