"Well, we could dig up this world's me, and compare DNA, but that wouldn't prove that I'm not just a secret long-lost twin." Barnes sighs. "I could introduce you to the others, but... again, not much to prove anything. All I can prove is that I don't have any knowledge of the world around me."

He shrugs. "I could tell you about my world, I suppose. The amount of detail I could go over isn't exactly something a crazy person would come up with, which, frankly, has to be one of the options you're going over."