The greatest works of art aim to please the teacher. Novel works, innovative works… these are works which aim for the audience, to wow them and make them say, “Well, we have never seen anything like this before.” Such stories are interesting for exactly as long as it takes someone else to come up with something “we have never seen before,” which, in the realm of science fiction, is often only a few weeks. The greatest crowd pleasing story of the 20th century, Star Wars, was not made to please crowds but to please Joseph Campbell. The Duffer Brothers have told a story to please their teachers, too, and because they have not sought novelty or wealth or fame, but the nodding approval of the master, they have become wise.