It's always fun when people frame any given problem as an engineering problem. I'd enjoy seeing the reverse: an engineering problem framed as an artistic or literary problem, for example.
And speaking of invisible cities, I came across this really neat project a little while ago:
https://github.com/mewo2/deserts/raw/master/novel.pdf
If I remember correctly (don't have the time atm to dig into it again) the project had first trained one net to generate images, then had another one trained on invisible cities to create the descriptions for the images. The above pdf is the output.
[Edit] Here is some context for the link you provided: https://procedural-generation.tumblr.com/post/138688390613/t...