 And the next piece of behavior is response differentiation. I think that's what it is. Yes, response differentiation. For those of you who don't know, we have cue cards down here. Anyway, so my cue card says I'm supposed to talk about response differentiation. So response differentiation is simple. It is simply a new class of responding, right? So it's part of that developing new behavior stuff and when you're trying to do shaping and things like that, once you get a new response that has a completely different class, produces different reinforcers, and so on and so forth, then you have a differentiated response. I'm trying to think of a good example here. Oh, I don't know, that didn't work. That didn't work either. Oh, I do know one that works. As we do this filming, we do things in certain ways and then over time, we start to learn new skills and new ways to address you and new ways to edit. Those new ways to edit might produce different reinforcers or the new ways in which we talk to you might produce different reinforcers. As a result, we might get a totally different behavior. If you'll notice, the swearing from early videos has drastically decreased, so response has differentiated. There's a new response class, so to speak, in terms of how we communicate or how I communicate to you on camera. There's all sorts of things here. Really, it's about developing a new response, just a new behavior in general. So response differentiation, doing something different.