"Well, you may ask, what can you do about it? The subject is one on which you have few convictions and little information. Can you be expected to make a dull subject interesting? As a matter of fact, this is precisely what you are expected to do. This is the writer's essential task. All subjects, except sex, are dull until somebody makes them interesting. The writer's job is to find the argument, the approach, the angle, the wording that will take the reader with him. This is seldom easy, and it is particularly hard in subjects that have been much discussed: College Football, Fraternities, Popular Music, Is Chivalry Dead?, and the like. You will feel that there is nothing you can do with such subjects except repeat the old bromides. But there are some things you can do which will make your papers, if not throbbingly alive, at least less insufferably tedious than they might otherwise be." "How to Say Nothing in 500 Words" by Paul Roberts

Which type of essay does this represent?