Loki isn't exactly fooled into thinking that this other version of himself wishes him no harm, but he'd like to think that he can tell when someone is lying. Even when this someone is himself. Travelling between Universes is impossible in theory, but he'll let it pass, if only out of curiosity. His distaste at the idea of mixing magic with science is obvious, but he only snorts in reply.

“Well, you certainly picked an interesting one. We are about to be executed for waging war against Midgard.” He grins, thinly. “Would you like to swap?”