Lovely choices of illustrations, and the central metaphor about the non-Newtonian fluid is excellent. Making books the centre of the game is a good thematic choice. One could not think of a better choice of stats for a Borges game!
The d100 table is powerful and evocative without being overladen with description.
Maybe some parts were a bit generic (using the pizza as an example, the principles of play that could have come from any indie game book); I imagine these could have been more Borges themed as well.Unfortunately, I don't read Italian, so I don't feel comfortable rating based on a machine translation. I feel like the computer didn't do a great job with the text.