While training something on TinyStories one of the early stage outputs was
"Once upon a time, in a small town, there was a huge town"
Which I thought was the brilliant start for an interesting story. Just that slight deviation from expectation provides a excellent scaffold for your imagination to take hold.
Of course the rest of the generation was utter rubbish, but if you could on-demand deviate from standard at key points while keeping the majority internally consistent then it would be great.