Oliver glanced at Percy when he joined him and then gestured through the diagram. "How all the lines and directions to point, create something. In a playbook's case, it's a play, where people go. But in this case, it's points to where the structure comes together, making a picture that while it's not visible here just like in the plays in the playbook, it comes together elsewhere. In something more concrete and three-dimensional," he tried to explain.