Nope, you’ve got the right idea about his example. It occurs early on in the book, while he’s trying to explain simple concepts to readers through non-technical analogy; sort of the way he explained complement spaces to readers by first asking which word contains the sequence “ADAC” in order (headache), and then asked what word contains the sequence “HEHE” in order; nothing particularly special about that either, but it teaches the reader a useful trick without presenting it mathematically.
Nope, you’ve got the right idea about his example. It occurs early on in the book, while he’s trying to explain simple concepts to readers through non-technical analogy; sort of the way he explained complement spaces to readers by first asking which word contains the sequence “ADAC” in order (headache), and then asked what word contains the sequence “HEHE” in order; nothing particularly special about that either, but it teaches the reader a useful trick without presenting it mathematically.