Agreed, we need a postscript from the author explaining that he set out to avoid drawing a comparison with chaotic systems, but after months of editing and tearing up handwritten drafts found himself arriving at one anyway.

I found myself thinking of the fixed point theorems, as if compressing ideas and culture into a story must at least necessarily repeat exactly some small part of every other book written on the same subject.

But also of clean-room implementations; as if Don Quixote represents an idea and in implementation of that idea one must inevitably duplicate some small part of someone else's independent implementation.

Yeah, I love Borges but this was kind of a stretch. There are better Borges stories that would fit the chaos theme better too. “The Lottery in Babylon” might work as it explores how much chance influences our lives.