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A History, A Theory, A Flood

Written by James GleickAuthor Alerts:  Random House will alert you to new works by James Gleick



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On Sale: March 01, 2011
Pages: 544 | ISBN: 978-0-307-37957-3
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A New York Times Notable Book
Los Angeles Times and Cleveland Plain Dealer Best Book of the Year
Winner of the PEN/E. O. Wilson Literary Science Writing Award

From the bestselling author of the acclaimed Chaos and Genius comes a thoughtful and provocative exploration of the big ideas of the modern era: Information, communication, and information theory. 
 
Acclaimed science writer James Gleick presents an eye-opening vision of how our relationship to information has transformed the very nature of human consciousness. A fascinating intellectual journey through the history of communication and information, from the language of Africa’s talking drums to the invention of written alphabets; from the electronic transmission of code to the origins of information theory, into the new information age and the current deluge of news, tweets, images, and blogs. Along the way, Gleick profiles key innovators, including Charles Babbage, Ada Lovelace, Samuel Morse, and Claude Shannon, and reveals how our understanding of information is transforming not only how we look at the world, but how we live.

Excerpt

DRUMS THAT TALK
(When a Code Is Not a Code)
 

Across the Dark Continent sound the never-silent drums:
the base of all the music, the focus of every dance;
the talking drums, the wireless of the unmapped jungle.
—Irma Wassall (1943)
 
No one spoke simply on the drums. Drummers would not say, “Come back home,” but rather,
 
Make your feet come back the way they went,
make your legs come back the way they went,
plant your feet and your legs below,
in the village which belongs to us.
 
They could not just say “corpse” but would elaborate: “which lies on its back on clods of earth.” Instead of “don’t be afraid,” they would say, “Bring your heart back down out of your mouth, your heart out of your mouth, get it back down from there.” The drums generated fountains of oratory. This seemed inefficient. Was it grandiloquence or bombast? Or something else?
 
For a long time Europeans in sub-Saharan Africa had no idea. In fact they had no idea that the drums conveyed information at all. In their own cultures, in special cases a drum could be an instrument of signaling, along with the bugle and the bell, used to transmit a small set of messages: attack; retreat; come to church. But they could not conceive of talking drums. In 1730 Francis Moore sailed eastward up the Gambia River, finding it navigable for six hundred miles, all the way admiring the beauty of the country and such curious wonders as “oysters that grew upon trees” (mangroves). He was not much of a naturalist. He was reconnoitering as an agent for English slavers in kingdoms inhabited, as he saw it, by different races of people of black or tawny colors, “as Mundingoes, Jolloiffs, Pholeys, Floops, and Portuguese.” When he came upon men and women carrying drums, carved wood as much as a yard long, tapered from top to bottom, he noted that women danced briskly to their music, and sometimes that the drums were “beat on the approach of an enemy,” and finally, “on some very extraordinary occasions,” that the drums summoned help from neighboring towns. But that was all he noticed.
 
A century later, Captain William Allen, on an expedition to the Niger River,(1) made a further discovery, by virtue of paying attention to his Cameroon pilot, whom he called Glasgow. They were in the cabin of the iron paddle ship when, as Allen recalled:
 
Suddenly he became totally abstracted, and remained for a while in the attitude of listening. On being taxed with inattention, he said, “You no hear my son speak?” As we had heard no voice, he was asked how he knew it. He said, “Drum speak me, tell me come up deck.” This seemed to be very singular.
 
The captain’s skepticism gave way to amazement, as Glasgow convinced him that every village had this “facility of musical correspondence.” Hard though it was to believe, the captain finally accepted that detailed messages of many sentences could be conveyed across miles. “We are often surprised,” he wrote, “to find the sound of the trumpet so well understood in our military evolutions; but how far short that falls of the result arrived at by those untutored savages.” That result was a technology much sought in Europe: long-distance communication faster than any traveler on foot or horseback. Through the still night air over a river, the thump of the drum could carry six or seven miles. Relayed from village to village, messages could rumble a hundred miles or more in a matter of an hour.
 
A birth announcement in Bolenge, a village of the Belgian Congo, went like this:
 
Batoko fala fala, tokema bolo bolo, boseka woliana imaki tonkilingonda, ale nda bobila wa fole fole, asokoka l’isika koke koke.
 
The mats are rolled up, we feel strong, a woman came from the forest, she is in the open village, that is enough for this time.
 
A missionary, Roger T. Clarke, transcribed this call to a fisherman’s funeral:
 
La nkesa laa mpombolo, tofolange benteke biesala, tolanga bonteke bolokolo bole nda elinga l’enjale baenga, basaki l’okala bopele pele. Bojende bosalaki lifeta Bolenge wa kala kala, tekendake tonkilingonda, tekendake beningo la nkaka elinga l’enjale. Tolanga bonteke bolokolo bole nda elinga l’enjale, la nkesa la mpombolo.
 
In the morning at dawn, we do not want gatherings for work, we want a meeting of play on the river. Men who live in Bolenge, do not go to the forest, do not go fishing. We want a meeting of play on the river, in the morning at dawn.
 
Clarke noted several facts. While only some people learned to communicate by drum, almost anyone could understand the messages in the drumbeats. Some people drummed rapidly and some slowly. Set phrases would recur again and again, virtually unchanged, yet different drummers would send the same message with different wording. Clarke decided that the drum language was at once formulaic and fluid. “The signals represent the tones of the syllables of conventional phrases of a traditional and highly poetic character,” he concluded, and this was correct, but he could not take the last step toward understanding why.
 
These Europeans spoke of “the native mind” and described Africans as “primitive” and “animistic” and nonetheless came to see that they had achieved an ancient dream of every human culture. Here was a messaging system that outpaced the best couriers, the fastest horses on good roads with way stations and relays. Earth-bound, foot-based messaging systems always disappointed. Their armies outran them. Julius Caesar, for example, was “very often arriving before the messengers sent to announce his coming,” as Suetonius reported in the first century. The ancients were not without resources, however. The Greeks used fire beacons at the time of the Trojan War, in the twelfth century BCE, by all accounts—that is, those of Homer, Virgil, and Aeschylus. A bonfire on a mountaintop could be seen from watchtowers twenty miles distant, or in special cases even farther. In the Aeschylus version, Clytemnestra gets the news of the fall of Troy that very night, four hundred miles away in Mycenae. “Yet who so swift could speed the message here?” the skeptical Chorus asks.
 
She credits Hephaestus, god of fire: “Sent forth his sign; and on, and ever on, beacon to beacon sped the courier-flame.” This is no small accomplishment, and the listener needs convincing, so Aeschylus has Clytemnestra continue for several minutes with every detail of the route: the blazing signal rose from Mount Ida, carried across the northern Aegean Sea to the island of Lemnos; from there to Mount Athos in Macedonia; then southward across plains and lakes to Macistus; Messapius, where the watcher “saw the far flame gleam on Euripus’ tide, and from the highpiled heap of withered furze lit the new sign and bade the message on”; Cithaeron; Aegiplanetus; and her own town’s mountain watch, Arachne. “So sped from stage to stage, fulfilled in turn, flame after flame,” she boasts, “along the course ordained.” A German historian, Richard Hennig, traced and measured the route in 1908 and confirmed the feasibility of this chain of bonfires. The meaning of the message had, of course, to be pre arranged, effectively condensed into a single bit. A binary choice, something or nothing:  the fire signal meant something, which, just this once, meant “Troy has fallen.” To transmit this one bit required immense planning, labor, watchfulness, and firewood. Many years later, lanterns in Old North Church likewise sent Paul Revere a single precious bit, which he carried onward, one binary choice: by land or by sea.
 
More capacity was required, for less extraordinary occasions. People tried flags, horns, intermitting smoke, and flashing mirrors. They conjured spirits and angels for purposes of communication—angels being divine messengers, by definition. The discovery of magnetism held particular promise. In a world already suffused with magic, magnets embodied occult powers. The lodestone attracts iron. This power of attraction extends invisibly through the air. Nor is it interrupted by water or even solid bodies. A lodestone held on one side of a wall can move a piece of iron on the other side. Most intriguing, the magnetic power appears able to coordinate objects vast distances apart, across the whole earth: namely, compass needles. What if one needle could control another? This idea spread—a “conceit,” Thomas Browne wrote in the 1640s,
 
whispered thorow the world with some attention, credulous and vulgar auditors readily believing it, and more judicious and distinctive heads, not altogether rejecting it. The conceit is excellent, and if the effect would follow, somewhat divine; whereby we might communicate like spirits, and confer on earth with Menippus in the Moon.
 
The idea of “sympathetic” needles appeared wherever there were natural philosophers and confidence artists. In Italy a man tried to sell Galileo “a secret method of communicating with a person two or three thousand miles away, by means of a certain sympathy of magnetic needles.”
 
I told him that I would gladly buy, but wanted to see by experiment and that it would be enough for me if he would stand in one room and I in another. He replied that its operation could not be detected at such a short distance. I sent him on his way, with the remark that I was not in the mood at that time to go to Cairo or Moscow for the experiment, but that if he wanted to go I would stay in Venice and take care of the other end.
 
The idea was that if a pair of needles were magnetized together—“touched with the same Loadstone,” as Browne put it—they would remain in sympathy from then on, even when separated by distance. One might call this “entanglement.” A sender and a recipient would take the needles and agree on a time to communicate. They would place their needle in disks with the letters of the alphabet spaced around the rim. The sender would spell out a message by turning the needle. “For then, saith tradition,” Browne explained, “at what distance of place soever, when one needle shall be removed unto any letter, the other by a wonderfull sympathy will move unto the same.” Unlike most people who considered the idea of sympathetic needles, however, Browne actually tried the experiment. It did not work. When he turned one needle, the other stood still.
 
Browne did not go so far as to rule out the possibility that this mysterious force could someday be used for communication, but he added one more caveat. Even if magnetic communication at a distance was possible, he suggested, a problem might arise when sender and receiver tried to synchronize their actions. How would they know the time,
 
it being no ordinary or Almanack business, but a probleme Mathematical, to finde out the difference of hours in different places; nor do the wisest exactly satisfy themselves in all. For the hours of several places anticipate each other, according to their Longitudes; which are not exactly discovered of every place.
 
This was a prescient thought, and entirely theoretical, a product of new seventeenth-century knowledge of astronomy and geography. It was the first crack in the hitherto solid assumption of simultaneity. Anyway, as Browne noted, experts differed. Two more centuries would pass before anyone could actually travel fast enough, or communicate fast enough, to experience local time differences. For now, in fact, no one in the world could communicate as much, as fast, as far as unlettered Africans with their drums.
 
 
By the time Captain Allen discovered the talking drums in 1841, Samuel F. B. Morse was struggling with his own percussive code, the electromagnetic drumbeat designed to pulse along the telegraph wire. Inventing a code was a complex and delicate problem. He did not even think in terms of a code, at first, but “a system of signs for letters, to be indicated and marked by a quick succession of strokes or shocks of the galvanic current.” The annals of invention offered scarcely any precedent. How to convert information from one form, the everyday language, into another form suitable for transmission by wire taxed his ingenuity more than any mechanical problem of the telegraph. It is fitting that history attached Morse’s name to his code, more than to his device.
 
He had at hand a technology that seemed to allow only crude pulses, bursts of current on and off, an electrical circuit closing and opening. How could he convey language through the clicking of an electromagnet? His first idea was to send numbers, a digit at a time, with dots and pauses. The sequence ••• •• ••••• would mean 325. Every English word would be assigned a number, and the telegraphists at each end of the line would look them up in a special dictionary. Morse set about creating this dictionary himself, wasting many hours inscribing it on large folios.(2) He claimed the idea in his first telegraph patent, in 1840:
 
The dictionary or vocabulary consists of words alphabetically arranged and regularly numbered, beginning with the letters of the alphabet, so that each word in the language has its telegraphic number, and is designated at pleasure, through the signs of numerals.
 
Seeking efficiency, he weighed the costs and possibilities across several intersecting planes. There was the cost of transmission itself: the wires would be expensive and would convey only so many pulses per minute.
 
Numbers would be relatively easy to transmit. But then there was the extra cost in time and difficulty for the telegraphists. The idea of code books—lookup tables—still had possibilities, and it echoed into the future, arising again in other technologies. Eventually it worked for Chinese telegraphy. But Morse realized that it would be hopelessly cumbersome for operators to page through a dictionary for every word.
 
His protégé Alfred Vail, meanwhile, was developing a simple lever key by which an operator could rapidly close and open the electric circuit. Vail and Morse turned to the idea of a coded alphabet, using signs as surrogates for the letters and thus spelling out every word. Somehow the bare signs would have to stand in for all the words of the spoken or written language. They had to map the entire language onto a single dimension of pulses. At first they conceived of a system built on two elements: the clicks (now called dots) and the spaces in between. Then, as they fiddled with the prototype keypad, they came up with a third sign: the line or dash, “when the circuit was closed a longer time than was necessary to make a dot.” (The code became known as the dot-and-dash alphabet, but the unmentioned space remained just as important; Morse code was not a binary language.) (3) That humans could learn this new language was, at first, wondrous. They would have to master the coding system and then perform a continuous act of double translation: language to signs; mind to fingers. One witness was amazed at how the telegraphists internalized these skills:
 
The clerks who attend at the recording instrument become so expert in their curious hieroglyphics, that they do not need to look at the printed record to know what the message under reception is; the recording instrument has for them an intelligible articulate language. They understand its speech. They can close their eyes and listen to the strange clicking that is going on close to their ear whilst the printing is in progress, and at once say what it all means.
 
In the name of speed, Morse and Vail had realized that they could save strokes by reserving the shorter sequences of dots and dashes for the most common letters. But which letters would be used most often? Little was known about the alphabet’s statistics. In search of data on the letters’ relative frequencies, Vail was inspired to visit the local newspaper office in Morristown, New Jersey, and look over the type cases. He found a stock of twelve thousand E’s, nine thousand T’s, and only two hundred Z’s. He and Morse rearranged the alphabet accordingly. They had originally used dash-dash-dot to represent T, the second most common letter; now they promoted T to a single dash, thus saving telegraph operators uncountable billions of key taps in the world to come. Long afterward, information theorists calculated that they had come within 15 percent of an optimal arrangement for telegraphing English text.
 
 
Endnotes
1. The trip was sponsored by the Society for the Extinction of the Slave Trade and the Civilization of Africa for the purpose of interfering with slavers.
2. “A very short experience, however, showed the superiority of the alphabetic mode,” he wrote later, “and the big leaves of the numbered dictionary, which cost me a world of labor, . . . were discarded and the alphabetic installed in its stead.”
3. Operators soon distinguished spaces of different lengths—intercharacter and interword—so Morse code actually employed four signs.
James Gleick

About James Gleick

James Gleick - The Information

Photo © © Phyllis Rose

James Gleick is our leading chronicler of science and modern technology. His first book, Chaos, a National Book Award finalist, has been translated into twenty-five languages. His best-selling biographies, Genius: The Life and Science of Richard Feynman and Isaac Newton, were short-listed for the Pulitzer Prize.

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Praise | Awards

Praise

Magnificent…this elegant, insightful study reminds us that we have always been adrift in an incomprehensible universe.” –Los Angeles Times, Best Books of 2011

“Grand, lucid and awe-inspiring…information is about a lot more than what human beings have to say to each other. It’s the very stuff of reality, and never have its mysteries been offered up with more elegance or aplomb.” –Salon, Best of 2011 

“With his ability to synthesize mounds of details and to tell rich stories, Gleick ably leads us on a journey from one form of communicating information to another.” –Publishers Weekly, Top 100 Books of 2011

“Ambitious, illuminating and sexily theoretical.” –New York Times 
 
“Gleick does what only the best science writers can do: take a subject of which most of us are only peripherally aware and put it at the center of the universe.” –Time

"The Information
isn't just a natural history of a powerful idea; it embodies and transmits that idea, it is a vector for its memes . . . and it is a toolkit for disassembling the world. It is a book that vibrates with excitement." --Cory Doctorow, Boing Boing

“No author is better equipped for such a wide-ranging tour than Mr. Gleick. Some writers excel at crafting a historical narrative, others at elucidating esoteric theories, still others at humanizing scientists. Mr. Gleick is a master of all these skills.” —The Wall Street Journal
 
“Extraordinary in its sweep . . . Gleick’s story is beautifully told, extensively sourced, and continually surprising.” —The Boston Globe
 
“Audacious. . . . Like the best college courses: challenging but rewarding.” —USA Today
 
 “Challenging and important. . . . This intellectual history is intoxicating—thanks to Gleick’s clear mind, magpie-styled research and explanatory verve.” —The Plain Dealer
 
“Gleick’s skill as an explicator of counterintuitive concepts makes the chapters on logic . . . brim with tension.” —The Oregonian
 
The Information puts our modern ‘information revolution’ in context, helping us appreciate the many information revolutions that preceded and enable it. The internet certainly has changed things, but Gleick shows that it has changed only what has already changed many times before. . . . His enthusiam is contagious.” —New Scientist
 
“Impressively, reassuringly, Gleick’s substantial, dense book comes as close as anything of late to satiating [the] twin demand for knowledge and clarity.” —The Irish Times
 
 “This is a work of rare penetration, a true history of ideas whose witty and determined treatment of its material brings clarity to a complex subject.” —The Daily Telegraph (London)
 
“The page-turner you never knew you desperately wanted to read.” —The Stranger
 
“To grasp what information truly means—to explain why it is shaping up as a unifying principle of science—Gleick has to embrace linguistics, logic, telecommunications, codes, computing, mathematics, philosophy, cosmology, quantum theory and genetics. . . . There are few writers who could accomplish this with such panache and authority. Gleick, whose 1987 work Chaos helped to kickstart the era of modern popular science, is one.” —The Observer (London)
 
“Enlightening. . . . Engagingly assembled.” —Nature
 
“ Mesmerizing. . . . As a celebration of human ingenuity, The Information is a deeply hopeful book.” —Nicholas Carr, The Daily Beast
 
“An amazing erudite and yet highly readable account of why and how information plays such a central role in all our lives, Gleick’s The Information is amongst the most profound books written about technology over the last few years.” —TechCrunch TV
 
“The web Gleick has woven is a rare one, a whole that envelops and exceeds its many parts, which certainly suits his topic. His contribution—too easily underrated in a work that synthesizes the ideas of others—lies in linking fields of science that aren’t connected in a formal sense. By the close of the book you cannot think of information as you might have before.” —Tim Wu, Slate
 
“[Gleick] is wrestling with truly profound material, and so will the reader. This is not a book you will race through on a single plane trip. It is a slow, satisfying meal.” —David Shenk, Columbia Journalism Review
 
“Gleick connects the dots that connect information to us, and there are many dots. . . . Here in one volume is the great story of the most important element at work in the world, and its story is well told. I had forgotten what a fantastic stylist Gleick is. It’s a joy to read him talking about anything.” —Kevin Kelly, The Technium
 
“Packed with the rich history of human thought and communication through the ages.” —PopMatters

Awards

FINALIST 2012 Andrew Carnegie Medal for Excellence in Nonfiction
FINALIST 2012 National Book Critics Circle Awards
WINNER 2012 PEN/E. O. Wilson Literary Science Writing Award
SUBMITTED 2012 Choice Magazine Outstanding Academic Title
SELECTION 2012 ALA Notable Adult Books

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