From the website's own about page:
When I first launched this website, it included here a quotation from Borges' 1939 essay “The Total Library” (“La Biblioteca Total”), precursor to his short story, where he describes the contents of the universal library. It would include everything: the minute history of the future, The Egyptians of Aeschylus, the precise number of times the waters of the Ganges have reflected the flight of a falcon, the secret and true name of Rome, the encyclopedia Novalis would have written, Borges' dreams and daydreams in the dawn of August 14th, 1934, the demonstration of Pierre Fermat's theorem, the unwritten chapters of Edwin Drood, those same chapters translated into the language of the Garamantes, Urizen's Books of Iron, the premature epiphanies of Stephen Dedalus that would mean nothing before a cycle of a thousand years, the gnostic gospel of Basilides, the song the sirens sang, the faithful catalogue of the library, and the demonstration of the falsehood of this catalog.