As another mentioned, these models currently can't maintain a believably cohesive train of thought for any longer than 3 or 4 sentences. They are great at drawing statistical probabilities related to what words best conclude sentences and how punctuation should properly be used, but thus far have proven quite lacking in the ability to replicate true human creativity. The Economist ran an excellent article on this very concern recently:

https://www.economist.com/books-and-arts/2019/10/31/dont-fea...