No, someone emulating someone else’s style is still going to have their own experiences, style, and creativity make their way into the book. They have an entire lifetime of “training data” to draw from. An AI that would “emulate” someone else’s style would really only be able to refer to the author’s books, or someone else’s books, therefore it’s stealing. Another example: if someone decided to remix different parts of a musician’s catalogue into one song, that would be a copyright infringement. AI adds nothing beyond what it’s trained on, therefore whatever it spits out is just other people’s works in a different way.