[Barry Allen is explaining to the others about the multiverse and how he arrived.]
[drawing circles on a whiteboard] All right. So imagine there are multiple versions of Earth. One where, uh... the Nazis won World War II , one where Kennedy was never assassinated...
[raising a hand like he's in a classroom] Okay, one where all of us are evil.
Been there. It sucks. So all of these Earths occupy the same place in space, but they vibrate at a different frequency, so they can't see one another.
Yeah, yeah, but it's like, if you can go fast enough, then it's possible to open, like, a breach and then travel between worlds.
Yeah.
But how could you travel that fast?
[amused] Uh, well, um...
[Barry races out of the room at super-speed, then returns seconds later, giving each of them an ice cream cone.]
[overjoyed] Yeess!!
Yeah. So, um... I was struck by lightning the same night a particle accelerator exploded, and I became a... superhero.
[Kara giggles, impressed and a little smitten.]
So, so, so... y-you're a superhero, too.
Mmm-hmm.
[subdued] Tha-that's cool, I guess.
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