Mark Blunder used to teach everything in the flesh. He would deliver things in person using his mouth. And for every additional client he had, things got a bit worse and he couldn't scale because he was restrained by the physical world. I helped Mark Blunder put a system in place here, here and here and he was able to dramatically change his business. So now let's get on to the fourth one, economics. What is economics? Well economics is ways to manage and understand and control your system. Most people can't control their business. It controls them, right? And so we need controls. Then what are your reserves? Like in business, the reserves I'm talking about