So that would be a no. He shakes his head, trying to figure out how to explain this to her. It's difficult explaining it to someone like Kara. Someone who didn't actually hurt him in his particular version of the timeline.

He doesn't really want her to have the chance. "No, it's not...I'm from Earth 1. If a speedster, if Barry goes back in time, changes things sometimes a version of him from an aborted timeline will be preserved for a while. If the events needed to have happened, but won't." It's complicated, Kara, okay? "Usually they die. Eventually."

And yet. Look at him.