John just nodded, scratching the back of his neck and watching Tony with a half-smile. "It'll come to you. You seem like a smart enough guy. Genius, actually. Kinda jealous." John laughed, standing straight.
"I should let you get back to it but, uh...maybe we can meet up and talk physics sometime?" It would be nice for John to get a chance to do that with another human. Someone who understood half of what he said.
He had a lot of learning to do, and he was glad he'd at least met someone else trying to figure out a solution to whatever this was. Maybe he could eventually contribute himself. But, for now, John just clapped the guy on the shoulder (he wasn't very good about invasions of personal space these days), and headed toward the door.