"That's not... " He trails off, dragging his hands down his face. That wasn't what he wanted to say. It wasn't what he was trying to get across. He turns away too, trying to compose himself instead of trying to end the conversation.

Though who knows how well it comes across.

"What if it was me?" he asks, finally. "What if... I was the one who ended up Prime. And you were the one who'd been gone four million years?" It's a terrible example. "You wouldn't know what to do, would you?"

His shoulder twitches.

"Yeah. Guess so."