FIGURE 71. Order and Chaos, by M. C. Escher (lithograph, 1950).Achilles: Chaos, part of perfection? Order and chaos make a pleasing
unity? Heresy!
Tortoise: Your favorite artist, M. C. Escher, has been known to suggest
such a heretical point of view in one of his pictures ... And while we're
on the subject of chaos, I believe that you might be interested in
hearing about two different categories of search, both of which are
guaranteed to terminate.
Achilles: Certainly.
Aria with Diverse Variations 399