 Yeah, so, you know, Munger, I think he came up with this idea of inversion back when he was a weather forecaster in World War II. He would basically make the flight charts for these pilots before they went out into battle. Then Munger would do this. He would, yeah. He would chart the weather. But basically his idea was instead of thinking of, you know, how can I safely get the pilots back home, he would think of how can I most easily kill the pilots. So inverting that. Kind of thinking worst case scenario, what would kill them?