The thing is. I don't know about the science but it seems to me, if he did change things in our world, that would either create a splinter world where we still suffer the consequences of all our actions....and he doesn't. Or everything changes in our world and then...maybe...I'd never meet you.

[His voice tries to stay neutral, but it's clear which option seems worse to him.]

How do you help when you're not even sure what you're helping, a monster or a savior?

Wing.[This is probably weak, but so be it.] I wouldn't let that happen.