N. K. Jemisin, best-selling science fiction and fantasy author well known for her book trilogy “The Broken Earth,” spoke about building a better world at this year’s Bartels World Affairs Lecture on Wednesday, Oct. 4 at 5:30 p.m. in a packed Rhodes-Rawling Auditorium. Jemisin spoke about how building fictional worlds helps her discuss the reality of our society, and concluded by calling on the audience to make choices in order to build the world they wish to see.