Oh! That's right, that means you'd have a lot of reference points!

[Though "some version of Earth" has her wondering just how different some of these versions can be from her own. Obviously, John's Earth and her Earth have differences, they have to, but how deep does the rabbit hole go?

Chalking that up as something to ask the general public in the future.]

I assume there are some things that prove to be a constant no matter where you go, or else we'd be vastly different from each other, wouldn't we?