I’m figuring that the equations we saw Sam had written out on the table in 12x19 were ones that he created himself. I mean, he was dealing with an entirely new thing, so it’s not like there’s going to be equations out there that he can already use. Sam used what he found out about nephilims through research and combined it with some pretty advanced knowledge of math. I’ve had to work with creating equations before, and let me tell you, it’s not easy. Sam compiled information from multiple books, so he put that information together along with what he already knew about when the nephilim was conceived, created variables for the different things involved, and then put those together to create equations. None of that would be anywhere near easy, and there are probably not many people that have the ability to do that. So when Dean says, “That’s a beautiful mind,” I wholeheartedly agree.