"Okay, well, that definitely didn't happen. Or happen yet. So." Cosima exhales. "We've got some options. Number one, when you get back from Thedas, you don't lose any time and you forget all about it, so I actually already went and came back. Relative to you."

She adjusts her glasses, more or less thinking aloud. "Option two, you and I are from incredibly similar but distinct timelines. Infinite options, butterfly effect stuff. In that case, your Cosima never left at all, but I'm not quite her." An alternate of a clone feels, even to Cosima, like turtles all the way down.

"Or, option three, one of us is having a really vivid hallucination and the other one of us doesn't actually exist." Cosima's smile is shaky. "But, uh, I'm on the record as pro you existing. So."

It's all a lot to take in.