 Response Differentiation, which is a result from differential reinforcement. So you will have a response class that is increased in frequency because of differential reinforcement. Reinforcement, right? And you will have a response class that is put on extinction, the less desired behaviors that you don't really want to, you know, you don't want to, you know, we're gonna put those numbers there, you know. The result of the behaviors you're looking for through differential reinforcement are increased in frequency. The other ones are decreased in frequency, well, decreased in frequency for the ones still paying attention to the direction I'm going from left to right. Which was backwards on camera, but whatever. Well, you know, this year consistent. Yeah, right? I'm being aware that I'm sending mixed signals. Most relationships aren't that sensitive. We're attempting to differentially reinforce this behavior. So the idea is a new response class. So the idea, let's take swimming for example, you throw someone water and they're gonna be flailing and drowning. That's not very productive. But any close approximation, differential reinforcement, you can get close to actually swimming. And once you reinforce certain frequencies of like moving your arms correctly and kicking correctly, then you're gonna have those behaviors on a higher frequency. And the other behaviors you don't want like the choking and spitting and bobbing underwater are gonna be decreased from extinction. So that leaves you with a new response class like the breaststroke and the butterfly and the elementary backstroke and the side stroke and the front crawl. And that might favor you the spiral, which is a blend of the front stroke and the backstroke. Pretty sweet. You can just do it in a nice circle. Anyway, differential response.