Everyone real and imagined belong to someone else. Also, thank the Lord for Wikipedia for the astrophysics.
Something hitting his forehead startled Jack out of his stupor. Looking down in his lap he saw a piece of folded paper. Opening it he read: Wake up and pay attention, dufus! Glaring at his clone, he found him balancing a pen on his upper lip. Tuning into what Carter was saying he looked around the room.
"The theory of everything is a hypothetical theory in theoretical physics that explains and links together all physical phenomena. It was initially used as a way to overgeneralize various theories," Sam explained to the class.
Scanning the room, he found a group of jocks joking around in the back corner. They were growing increasingly louder and it looked like the major was fast losing patience with them. Deciding it was time to take action, Jack stood and interrupted, "Excuse me Major Carter but it looks like the gentlemen in the back have something fascinating to add. Gentlemen, since you apparently hold doctorates in astrophysics, do you have something to add to the major's presentation?"
"Nah, old geezer, the chick is a hottie but no one here is interested in joining the 'Hair' Force or being an astronut," said the muscular ringleader.
"So you speak for this entire class, do you," Jack asked with sarcasm dripping off every word. Looking around the room he focused in on his mini-me, "you there, you aren't interested in joining the Air Force or in exploring new worlds?"
Rolling his eyes at the original, Jon sat up straighter and said, "Sir, no sir! I am here to learn about the opportunities presented by the United States Air Force, sir!"
The glare the other student gave him could have melted glass. "And I suppose you think you're good enough to join up with the wing-wipers?" he snarked.
Jon gives him a cold look. "More than you will ever know."
Lunging toward the former black ops officer in a teenage body, the jock tried to take a swing at Jon. Luckily for him, his friends and teammates held him back.
Seeing the ace bandage on the attacker's right wrist, Jack asked, "You wouldn't happen to be on the football team by chance?"
"Yeah, what of it?" snarled the linebacker belligerently.
"No reason," Jack said innocently rocking back and forth on his heels with his hands in his pockets, "Nice to know all the training the Air Force and I have put into Mr. Simpson has not been forgotten."