Every other Tuesday in Storied, K. B. Hoyle explores the ways our cultural narratives act on us individually and in society as a whole. Note from the Editor: This piece contains for real spoilers for Avengers: Endgame. It’s a wonderful article, but don’t complain to me if it spoils things for you.  “I am Iron Man.” These are famous words. They kicked off a 22-movie (and counting) franchise, they broke the mold of superhero storytelling, and they left a new generation of movie-goers…