Physics, multiple world theories, that's all completely outside her circle of knowledge; she's a hacker and a pseudo-field agent, not a scientist. But everyone on Earth has had their understanding of the scope of the universe expanded drastically since New York, and even before that, when SHIELD was covering up New Mexico, Skye was on top of that intel too.

"Sure sounds like it's crazy," she says. The universe is bigger than they ever imagined, maybe with more worlds than they can count. It's mind-blowing to think that there's different versions of people on those worlds, because that's what it is.

Is there another Skye in his world, too?

"I mean, having even one world where some dude thought plastering himself head to toe in the American flag--actually, no, I can see that happening in every version of America."