Quote
Clark said, "Amazing night."

Lois agreed, "Yeah, really amazing."

Jack said, "I'd call it … unbelievable."

Jimmy replied, "Yeah, I'd have to agree with that."

Jack said, "I mean, if I ever told anybody about it they'd think I was crazy, right?"

Jimmy replied, "Probably."
When I watch this scene, I always get the impression that Jack figured out The Secret, both from his tone of voice and from Clark's reaction.

"Oh, you can’t help that," said the Cat: "we’re all mad here. I’m mad. You’re mad."
"How do you know I’m mad?" said Alice.
"You must be," said the Cat, "or you wouldn’t have come here.”

- Lewis Carroll, Alice in Wonderland