Writers and academics who fret over the fate of public intellectuals may think they are debating vital questions of the culture. But their discussions are myopically focused on the writing habits of a rapidly disappearing elite. The vast majority of potential public intellectuals do not belong to the academic 1 percent. They are not forsaking the snappy op-ed for the arcane article. They are not navigating the shoals of publish or perish. They’re grading.