“When it was proclaimed that the Library contained all books, the first impression was one of extravagant happiness,” wrote Jorge Luis Borges in his classic of philosophical fiction, “The Library of Babel.” One of the most revered stories-as-thought-experiments ever committed to print, Borges’ fiction posits the Universe as a library (“composed of an indefinite and perhaps infinite number of hexagonal galleries”) that contains every possible text. This intellectual vision, at once playful and poised, has stirred authors (like Umberto Eco and Terry Pratchett) and philosophers (W.V.O. Quine and Daniel Dennett) alike for more than 75 years.