Describing a work of art as “didactic” has become a way of writing it off. But works such as HBO’s “The Pitt” push us to reconsider the merits of trying to teach. https://www.newyorker.com/culture/the-weekend-essay/can-art-teach?utm_campaign=dhvoante&utm_content=%3Cmedia_url%3E&utm_medium=social&utm_source=voante