 And eventually one of the students would say, oh, people? Yeah, that's right, he would say. And then he'd point out that one of them was giving a much hotter signature than the others and was moving around the screen very erratically. He said, well, why is that one so much hotter than the others? And eventually, after a little pause, one of the students would say, because they're on fire? And then he would just fix them with this incredible look and just say, that's right.