Sam shakes his head in resignation. It made a sort of sense, but he honestly didn't know enough about either field to support one way or the other. He had a feeling he'd heard something similar thrown around by Stark at one point. It made a kind of sense, but to be honest it didn't really matter anyway. Either way they were here, right?

He can't be sure why the man seems so assured that there isn't a way back through the fountain. Sam would ask, but at the same time he's not exactly willing to jump back in there just yet either. Again, there was no way of knowing just how deep it went and how much air he would need. Sam could swim, sure, but he'd joined the Air Force over the Navy for a reason (well, several reasons, but a preference for dry land was one).

"Probably. Guess you could just eenie-meenie-mineie-moe it then," he smirks. "Think I'll hang back for a bit though...I'm curious to see who else might be coming through."