The Operant Lens and the Cognitive Lens in Dog Training

The operant lens makes sense if you look at it from the... Right, so this is old 3D movies. How did you see in 3D when you went to an old 3D movie? What did you do? I wear the glasses, are we talking about? And what do the glasses have? The red and the blue. You have the operant lens here and the cognitive lens here that gives you the 3D image that you wouldn't get otherwise. It's not just about cognition, but it's also about what Penxep described about the systemic changes in the dog's perception based on the activity that's engaged in.