FWIW the short story that that part of the book is based on is available for under a dollar Wang's Carpets, by Greg Egan https://www.amazon.com/gp/aw/d/B009ZVK

FWIW the short story that that part of the book is based on is available for under a dollar Wang's Carpets, by Greg Egan https://www.amazon.com/gp/aw/d/B009ZVKQVS/ https://www.amazon.com/gp/aw/d/B009ZVKQVS/