[Steph sighs in relief] Awesome, okay, that saves me having to try to be sciencey at you.

[She's seen Kon's attempt at an explanation, and hopes hers will go over a little better]

I think I might know you, but... from a different universe. You look like her but you don't - talk like her, if that makes sense? The Kara I'm friends with goes by Supergirl sometimes, and she's closer to Superman.