"You know how it works," Avi says. "When you go to the dentist, you never actually see the dentist, right? Someone else makes the appointment. Then there’s always this elite coterie of highly efficient women who scrape the plaque out of the way, so that the dentist doesn’t have to deal with it, and take your X-rays. The dentist himself sits in the back somewhere and looks at the X-rays—he deals with you as this abstract greyscale image on a little piece of film. If he sees holes, he goes into action. If not, he comes in and exchanges small talk with you for a minute and then you go home."