AI writes better stories when it works backwards from an ending

When tasking AI with writing a story, more coherent plots can be created by prompting it to write a story backwards, starting from an ending. In previous work, AI has been capable of taking an opening paragraph and use it to generate a whole story, sentence by sentence, by applying patterns gleaned from vast amounts of training data. But this approach can quickly wander into incoherence as the length of the story increases.