And so that thing of not being married to any ideas is a giant part of the philosophy of jiu-jitsu because all of a sudden there's heel hooks. Oh, I didn't think of that. You can't stand that way because then the guy can get you in the heel hook. Oh, Jesus. Right. All right. Let's break down the guard pass now. We're going to have to do it a different way. And this is a constant cycle in jiu-jitsu because jiu-jitsu is never ending. There's new techniques in jiu-jitsu that are invented every day. There's things that people are trying right now somewhere in Portland that are going to make its way onto the national scene. Some guy will have some new way of doing a choke or some new way of getting a heel hook and everybody's going to adopt it. And then everybody has to figure out the counters to it. And then it's so this is endless process.