George R. R. Martin’s next epic battle isn’t on the page — it’s in court

George R.R. Martin is the author of the Song of Ice and Fire books, adapted by HBO as Game of Thrones. He’s also part of a class action lawsuit filed by the Authors Guild against OpenAI for copyright infringement. Large language models, such as OpenAI’s ChatGPT, work by training on vast amounts of written material, including Martin’s books. Should that be legal when those books are copyrighted? Why or why not?