Scan This Book!
By KEVIN KELLY

Correction Appended

In several dozen nondescript office buildings around the world, thousands of hourly workers bend over table-top scanners and haul dusty books into high-tech scanning booths. They are assembling the universal library page by page.

The dream is an old one: to have in one place all knowledge, past and present. All books, all documents, all conceptual works, in all languages. It is a familiar hope, in part because long ago we briefly built such a library. The great library at Alexandria, constructed around 300 B.C., was designed to hold all the scrolls circulating in the known world. At one time or another, the library held about half a million scrolls, estimated to have been between 30 and 70 percent of all books in existence then. But even before this great library was lost, the moment when all knowledge could be housed in a single building had passed. Since then, the constant expansion of information has overwhelmed our capacity to contain it. For 2,000 years, the universal library, together with other perennial longings like invisibility cloaks, antigravity shoes and paperless offices, has been a mythical dream that kept receding further into the infinite future.

Until now. When Google announced in December 2004 that it would digitally scan the books of five major research libraries to make their contents searchable, the promise of a universal library was resurrected. Indeed, the explosive rise of the Web, going from nothing to everything in one decade, has encouraged us to believe in the impossible again. Might the long-heralded great library of all knowledge really be within our grasp?

Brewster Kahle, an archivist overseeing another scanning project, says that the universal library is now within reach. "This is our chance to one-up the Greeks!" he shouts. "It is really possible with the technology of today, not tomorrow. We can provide all the works of humankind to all the people of the world. It will be an achievement remembered for all time, like putting a man on the moon." And unlike the libraries of old, which were restricted to the elite, this library would be truly democratic, offering every book to every person.

But the technology that will bring us a planetary source of all written material will also, in the same gesture, transform the nature of what we now call the book and the libraries that hold them. The universal library and its "books" will be unlike any library or books we have known. Pushing us rapidly toward that Eden of everything, and away from the paradigm of the physical paper tome, is the hot technology of the search engine.

1. Scanning the Library of Libraries

Scanning technology has been around for decades, but digitized books didn't make much sense until recently, when search engines like Google, Yahoo, Ask and MSN came along. When millions of books have been scanned and their texts are made available in a single database, search technology will enable us to grab and read any book ever written. Ideally, in such a complete library we should also be able to read any article ever written in any newspaper, magazine or journal. And why stop there? The universal library should include a copy of every painting, photograph, film and piece of music produced by all artists, present and past. Still more, it should include all radio and television broadcasts. Commercials too. And how can we forget the Web? The grand library naturally needs a copy of the billions of dead Web pages no longer online and the tens of millions of blog posts now gone — the ephemeral literature of our time. In short, the entire works of humankind, from the beginning of recorded history, in all languages, available to all people, all the time.

This is a very big library. But because of digital technology, you'll be able to reach inside it from almost any device that sports a screen. From the days of Sumerian clay tablets till now, humans have "published" at least 32 million books, 750 million articles and essays, 25 million songs, 500 million images, 500,000 movies, 3 million videos, TV shows and short films and 100 billion public Web pages. All this material is currently contained in all the libraries and archives of the world. When fully digitized, the whole lot could be compressed (at current technological rates) onto 50 petabyte hard disks. Today you need a building about the size of a small-town library to house 50 petabytes. With tomorrow's technology, it will all fit onto your iPod. When that happens, the library of all libraries will ride in your purse or wallet — if it doesn't plug directly into your brain with thin white cords. Some people alive today are surely hoping that they die before such things happen, and others, mostly the young, want to know what's taking so long. (Could we get it up and running by next week? They have a history project due.)


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Scan This Book! - New York Times