Nicholas Carr Quotes

We become, neurologically, what we think."(33)

The Net’s interactivity gives us powerful new tools for finding information, expressing ourselves, and conversing with others. It also turns us into lab rats constantly pressing levers to get tiny pellets of social or intellectual nourishment.

In the quiet spaces opened up by the prolonged, undistracted reading of a book, people made their own associations, drew their own inferences and analogies, fostered their own ideas. They thought deeply as they read deeply.

What the Net seems to be doing is chipping away my capacity for concentration and contemplation. Whether I’m online or not, my mind now expects to take in information the way the Net distributes it: in a swiftly moving stream of particles. Once I was a scuba diver in the sea of words. Now I zip along the surface like a guy on a Jet Ski.

We want to be interrupted, because each interruption brings us a valuable piece of information. To turn off these alerts is to risk feeling out of touch, or even socially isolated.

Culture is sustained in our synapses...It's more than what can be reduced to binary code and uploaded onto the Net. To remain vital, culture must be renewed in the minds of the members of every generation. Outsource memory, and culture withers.

We don’t constrain our mental powers when we store new long-term memories. We strengthen them. With each expansion of our memory comes an enlargement of our intelligence. The Web provides a convenient and compelling supplement to personal memory - but when we start using the Web as a substitute for personal memory, by bypassing the inner processes of consolidation, we risk emptying our minds of their riches.

What we’re experiencing is, in a metaphorical sense, a reversal of the early trajectory of civilization: we are evolving from being cultivators of personal knowledge to being hunters and gatherers in the electronic data forest.  

[Patricia Greenfield] concluded that “every medium develops some cognitive skills at the expense of others.” Our growing use of the Net and other screen-based technologies has led to the “widespread and sophisticated development of visual-spatial skills.” We can, for example, rotate objects in our minds better than we used to be able to. But our “new strengths in visual-spatial intelligence” go hand in hand with a weakening of our capacities for the kind of “deep processing” that underpins “mindful knowledge acquisition, inductive analysis, critical thinking, imagination, and reflection.

The internet, as its proponents rightly remind us, makes for variety and convenience; it does not force anything upon you. Only it turns out it doesn’t feel like that at all. We don’t feel as if we had freely chosen our online practices. We feel instead that they are habits we have helplessly picked up or that history has enforced, that we are not distributing our attention as we intend or even like to

The Web provides a convenient and compelling supplement to personal memory, but when we start using the Web as a substitute for personal memory, bypassing the inner processes of consolidation, we risk emptying our minds of their riches.

Experiments show that just as the brain can build new or stronger circuits through physical or mental practice, those circuits can weaken or dissolve with neglect.

Once I was a scuba diver in a sea of words. Now I zip along the surface like a guy on a Jet Ski.

To remain vital, culture must be renewed in the minds of the members of every generation. Outsource memory, and culture withers.

You can take a book to the beach without worrying about sand getting in its works. You can take it to bed without being nervous about it falling to the floor should you nod off. You can spill coffee on it. You can sit on it. You can put it down on a table, open to the page you’re reading, and when you pick it up a few days later it will still be exactly as you left it. You never have to be concerned about plugging a book into an outlet or having its battery die.

The Web has a very different effect. It places more pressure on our working memory, not only diverting resources from our higher reasoning faculties but obstructing the consolidation of long-term memories and the development of schemas.

There is no economic law that says that everyone, or even most people, automatically benefit from technological progress.

The bond between book reader and book writer has always been a tightly symbiotic one, a means of intellectual and artistic cross-fertilization. The words of the writer act as a catalyst in the mind of the reader, inspiriting new insights, associations, and perceptions, sometimes even epiphanies. And the very existence of the attentive, critical reader provides the spur for the writer’s work. It gives the author confidence to explore new forms of expression, to blaze difficult and demanding paths of thought, to venture into uncharted and sometimes hazardous territory. “All great men have written proudly, nor cared to explain,” said Emerson. “They knew that the intelligent reader would come at last, and would thank them.

A series of psychological studies over the past twenty years has revealed that after spending time in a quiet rural setting, close to nature, people exhibit greater attentiveness, stronger memory, and generally improved cognition. Their brains become both calmer and sharper.

In a talk at a recent Phi Beta Kappa meeting, Duke University professor Katherine Hayles confessed, “I can’t get my students to read whole books anymore.”10 Hayles teaches English; the students she’s talking about are students of literature.

When our brain is overtaxed, we find “distractions more distracting.

research continues to show that people who read linear text comprehend more, remember more, and learn more than those who read text peppered with links.

Our brains turn into simple signal-processing units, quickly shepherding information into consciousness and then back out again.

Even though the World Wide Web has made hypertext commonplace, indeed ubiquitous, research continues to show that people who read linear text comprehend more, remember more, and learn more than those who read text peppered with links.

The faster we surf across the surface of the Web—the more links we click and pages we view—the more opportunities Google gains to collect information about us and to feed us advertisements. Its advertising system, moreover, is explicitly designed to figure out which messages are most likely to grab our attention and then to place those messages in our field of view. Every click we make on the Web marks a break in our concentration, a bottom-up disruption of our attention—and it’s in Google’s economic interest to make sure we click as often as possible.

There was something calming in the reticence of all those books, their willingness to wait years, decades even, for the right reader to come along and pull them from their appointed slots. Take your time, the books whispered to me in their dusty voices. We’re not going anywhere.

Nowadays, being “connected” means 24/7 availability. Emailing, texting, Twittering, calling, keeping one’s website and Facebook status current seem essential to being and remaining relevant in the world. In addition to the positive impact of globally interconnecting humanity, the information era is also contributing to the creation of a high-tech, low-touch society. It is impacting language, the publishing world, education, and social revolts. Neurologists and other pundits, including Nicholas Carr in his Atlantic article, “Is Google Making Us Stupid?”, point out the paradoxical downsides of not setting healthy boundaries or applying discipline to how we engage technology. Some have gone so far as to suggest that it is making us “spiritually stupid” by keeping us too distracted to participate in spiritual practices. But how about this: can using technology with mindfulness lead to beneficial social and spiritual connection?

Our writing equipment takes part in the forming of our thoughts.

The paradox of neuroplasticity, observes Doidge, is that, for all the mental flexibility it grants us, it can end up locking us into “rigid behaviors.

A polemicist might put it more pointedly: The brighter the software, the dimmer the user.

Descartes may have been wrong about dualism, but he appears to have been correct in believing that our thoughts can exert a physical influence on, or at least cause a physical reaction in, our brains. We become, neurologically, what we think.

And what the Net seems to be doing is chipping away my capacity for concentration and contemplation. Whether I’m online or not, my mind now expects to take in information the way the Net distributes it: in a swiftly moving stream of particles.

lawyer and technology writer Richard Koman, argued that Google “has become a true believer in its own goodness, a belief which justifies its own set of rules regarding corporate ethics, anti-competition, customer service and its place in society.

The mechanical clock changed the way we saw ourselves. And like the map, it changed the way we thought. Once the clock had redefined time as a series of units of equal duration, our minds began to stress the methodical mental work of division and measurement.

The influx of competing messages that we receive whenever we go online not only overloads our working memory; it makes it much harder for our frontal lobes to concentrate our attention on any one thing. The process of memory consolidation can’t even get started.

The ocean extends an invitation to the swimmer that it withholds from the person who has never learned to swim. With every skill we learn, the world reshapes itself to reveal greater possibilities.

our conventional response to all media, namely that it is how they are used that counts, is the numb stance of the technological idiot,” he wrote. The content of the medium is just “the juicy piece of meat carried by the burglar to distract the watchdog of the mind.” P 4

Even the earliest silent readers recognized the striking change in their consciousness that took place as they immersed themselves in the pages of a book. The medieval bishop Isaac of Syria described how, whenever he read to himself, “as in a dream, I enter a state when my sense and thoughts are concentrated. Then, when with prolonging of this silence the turmoil of my memories is stilled in my heart, ceaseless waves of joy are sent me by inner thoughts, beyond expectation suddenly arising to delight my heart.” Reading a book was a meditative act, but it didn’t involve a clearing of the mind. It involved a filling, or replenishing, or the mind. Readers disengaged their attention from the outward flow of passing stimuli in order to engage it more deeply with an inward flow of words, ideas, and emotions. That was—and is—the essence of the unique mental process of deep reading.

Calm, focused, undistracted, the linear mind is being pushed aside by a new kind of mind that wants and needs to take in and dole out information in short, disjointed, often overlapping bursts—the faster, the better.

Reading a book carves brand-new neural pathways into the ancient cortical bedrock of our brains. It transforms the way we see the world. Makes us, as Nicholas Carr puts it in his recent essay 'The Dreams of Readers', 'more alert to the inner lives of others'. We become vampires without being bitten. In other words, more empathic. Books make us see in a way that casual immersion in the Internet, and the quickfire virtual world it offers, doesn't.

The near-continuous stream of new information pumped out by the Web also plays to our natural tendency to “vastly overvalue what happens to us right now,” as Union College psychologist Christopher Chabris explains. We crave the new even when we know that “the new is more often trivial than essential.

In the long run a medium's content matters less than the medium itself in influencing how we think and act. As our window onto the world, and onto ourselves, a popular medium molds what we see and how we see it-and eventually, if we use it enough, it changes who we are, as individuals and as a society.

Americans, no matter what their age, spend at least eight and a half hours a day looking at a television, a computer monitor, or the screen of their mobile phone. Frequently, they use two or even all three of the devices simultaneously.

When a printed book—whether a recently published scholarly history or a two-hundred-year-old Victorian novel—is transferred to an electronic device connected to the Internet, it turns into something very like a Web site. Its words become wrapped in all the distractions of the networked computer. Its links and other digital enhancements propel the reader hither and yon. It loses what the late John Updike called its “edges” and dissolves into the vast, rolling waters of the Net. The linearity of the printed book is shattered, along with the calm attentiveness it encourages in the reader.

Seneca may have put it best two thousand years ago: “To be everywhere is to be nowhere.”51

we program our computers and thereafter they program us. Even

The key to memory consolidation is attentiveness.

The mind of the experienced book reader is a calm mind, not a buzzing one. When it comes to the firing of our neurons, it's a mistake to assume that more is better.

It’s the new technologies that govern production and consumption, that guide people’s behavior and shape their perceptions.

The great library that Google is rushing to create shouldn’t be confused with the libraries we’ve known up until now. It’s not a library of books. It’s a library of snippets.

The value of a well-made and well-used tool lies not only in what it produces for us but what it produces in us.

When we’re online, we’re often oblivious to everything else going on around us. The real world recedes as we process the flood of symbols and stimuli coming through our devices.

never has there been a medium that, like the Net, has been programmed to so widely scatter our attention and to do it so insistently.

The internet, wrote Nicholas Carr in The Shallows, his book about brain science and screen time, steadily chips away at one’s “capacity for concentration and contemplation.

media aren’t just channels of information. They supply the stuff of thought, but they also shape the process of thought. And what the Net seems to be doing is chipping away my capacity for concentration and contemplation. Whether I’m online or not, my mind now expects to take in information the way the Net distributes it: in a swiftly moving stream of particles. Once I was a scuba diver in the sea of words. Now I zip along the surface like a guy on a Jet Ski.

Although neuroplasticity provides an escape from genetic determinism, a loophole for free thought and free will, it also imposes its own form of determinism on our behavior. As particular circuits in our brain strengthen through the repetition of a physical or mental activity, they begin to transform that activity into a habit. The paradox of neuroplasticity, observes Doidge, is that, for all the mental flexibility it grants us, it can end up locking us into “rigid behaviors.”33 The chemically triggered synapses that link our neurons program us, in effect, to want to keep exercising the circuits they’ve formed. Once we’ve wired new circuitry in our brain, Doidge writes, “we long to keep it activated.

As social concerns override literary ones, writers seem fated to eschew virtuosity and experimentation in favor of a bland but immediately accessible style. Writing will become a means for recording chatter.

Quite a few people still listen to vinyl records, use film cameras to take photographs, and look up phone numbers in the printed Yellow Pages. But the old technologies lose their economic and cultural force. They become progress’s dead ends. It’s the new technologies that govern production and consumption, that guide people’s behavior and shape their perceptions. That’s why the future of knowledge and culture no longer lies in books or newspapers or TV shows or radio programs or records or CDs. It lies in digital files shot through our universal medium at the speed of light.

But except in rare circumstances, you can train until you’re blue in the face and you’d never be as good as if you just focused on one thing at a time.” What we’re doing when we multitask “is learning to be skillful at a superficial level.” The Roman philosopher Seneca May have put it best two thousand years ago: “To be everywhere is to be nowhere.

Technology isn’t what makes us “post-human” or “transhuman,” as some writers and scholars have recently suggested. It’s what makes us human. Technology is in our nature. Through our tools we give our dreams form. We bring them into the world. The practicality of technology may distinguish it from art, but both spring from a similar, distinctly human yearning.

The more a sufferer concentrates on his symptoms, the deeper those symptoms are etched into his neural circuits. In the worst cases, the mind essentially trains itself to be sick. Many addictions, too, are reinforced by the strengthening of plastic pathways to the brain. Even very small doses of addictive drugs can dramatically alter the flow of neurotransmitters in a person’s synapses, resulting in long-lasting alterations in brain circuitry and function. In some cases, the buildup of certain kinds of neurotransmitters, such as dopamine, a pleasure-producing cousin to adrenaline, seems to actually trigger the turning on or off particular genes, bringing even stronger cravings for the drug. The vital path turns deadly.

But there is one thing that determinists and instrumentalists can agree on: technological advances often mark turning points in history. New tools for hunting and farming brought changes in patterns of population growth, settlement, and labor.

Influenced by the thought patterns of machines, my own mind cranks along, unable to rest, habituated to the disembodied, unresting online atmosphere. But the constant stream of information isn’t helping me to think more deeply, to contemplate, to have the long-considered knowledge that becomes wisdom. Rather, it is conditioning me simply to glean information and then move on. As author Nicholas Carr wrote, “The Internet is an interruption system. It seizes our attention only to scramble it.”[3]

Our intellectual maturation as individuals can be traced through the way we draw pictures, or maps, of our surroundings. We begin with primitive, literal renderings of the features of the land we see around us, and we advance to ever more accurate, and more abstract, representations of geographic and topographic space. We progress, in other words, from drawing what we see to drawing what we know.

We should imitate bees,' Seneca wrote, 'and we should keep in separate compartments whatever we have collected from our diverse reading, for things conserved separately keep better. Then, diligently applying all the resources of our native talent, we should mingle all the various nectars we have tasted, and then turn them into a single sweet substance, in such a way that, even if it was apparent where it originated, it appears quite different from what it was in its original state.' Memory, for Seneca as for Erasmus, was as much a crucible as a container. It was more than the sum of things remembered. It was something newly made, the essence of a unique self.

if, knowing what we know today about the brain’s plasticity, you were to set out to invent a medium that would rewire our mental circuits as quickly and thoroughly as possible, you would probably end up designing something that looks and works a lot like the Internet.

Should the Egyptians learn to write, Thamus goes on, “it will implant forgetfulness in their souls: they will cease to exercise memory because they rely on that which is written, calling things to remembrance no longer from within themselves, but by means of external marks.” The

What is different, and troubling, is that skimming is becoming our dominant mode of reading. Once a means to an end, a way to identify information for deeper study, scanning is becoming an end in itself—our preferred way of gathering and making sense of information of all sorts.

the mind is not sealed in the skull but extends throughout the body. We think not only with our brain but also with our eyes and ears, nose and mouth, limbs and torso. And when we use tools to extend our grasp, we think with them as well. “Thinking, or knowledge-getting, is far from being the armchair thing it is often supposed to be,” wrote the American philosopher and social reformer John Dewey in 1916. “Hands and feet, apparatus and appliances of all kinds are as much a part of it as changes in the brain.”51 To act is to think, and to think is to act.

As McLuhan suggested, media aren’t just channels of information. They supply the stuff of thought, but they also shape the process of thought. And what the Net seems to be doing is chipping away my capacity for concentration and contemplation. Whether I’m online or not, my mind now expects to take in information the way the Net distributes it: in a swiftly moving stream of particles. Once I was a scuba diver in the sea of words. Now I zip along the surface like a guy on a Jet Ski.

The brain’s plasticity is not limited to the somatosensory cortex, the area that governs our sense of touch. It’s universal. Virtually all of our neural circuits—whether they’re involved in feeling, seeing, hearing, moving, thinking, learning, perceiving, or remembering—are subject to change. The received wisdom is cast aside.

When it comes to the quality of our thought, our neurons and synapses are entirely indifferent. The possibility of intellectual decay is inherent in the malleability of our brains.

It’s dubious and dangerous, Drucker is saying, to mistake what’s measurable for what’s important.

When we speak with emoji, we’re speaking a language that machines can understand.

How do users read on the web?” he asked then. His succinct answer: “They don’t.”38

The Net is, by design, an interruption system, a machine geared for dividing attention.

for Google, the real value of a book is not as a self-contained literary work but as another pile of data to be mined.

Personal memory shapes and sustains the “collective memory” that underpins culture.

The experiment suggested a strong correlation “between the number of links and disorientation or cognitive overload,” wrote Zhu.

One of its major recent thrusts has been to place a greater priority on what it calls the “freshness” of the pages it recommends. Google not only identifies new or revised Web pages much more quickly than it used to—it now checks the most popular sites for updates every few seconds rather than every few days—but for many searches it skews its results to favor newer pages over older ones.

Bad habits can be ingrained in our neurons as easily as good ones. Pascual-Leone observes that “plastic changes may not necessarily represent a behavioral gain for a given subject.” In addition to being “the mechanism for development and learning,” plasticity can be “a cause of pathology.”35 It comes as no surprise that neuroplasticity has been linked to mental afflictions ranging from depression to obsessive-compulsive disorder to tinnitus. The more a sufferer concentrates on his symptoms, the deeper those symptoms are etched into his neural circuits. In the worst cases, the mind essentially trains itself to be sick.

Their words also make it a lot easier for people to justify that shift -- to convince themselves that surfing the Web is a suitable, even superior, substitute for deep reading and other forms of calm and attentive thought. In arguing that books are archaic and dispensable, Federman and Shirky provide the intellectual cover that allows thoughtful people to slip comfortably in the permanent state of distractedness that defines the online life.

Some of the test subjects were given cards that had both words printed in full, like this: Hot: Cold Others used cards that showed only the first letter of the second word, like this: Hot: C The people who used the cards with the missing letters performed much better in a subsequent test measuring how well they remembered the word pairs. Simply forcing their minds to fill in a blank, to act rather than observe, led to stronger retention of information.

Differences in brain activity have even been documented among readers of different alphabetic languages. Readers of English, for instance, have been found to draw more heavily on areas of the brain associated with deciphering visual shapes than do readers of Italian. The difference stems, it’s believed, from the fact that English words often look very different from the way they sound, whereas in Italian words tend to be spelled exactly as they’re spoken.21

Another experiment, conducted by Pascual-Leone when he was a researcher at the National Institutes of Health, provides even more remarkable evidence of the way our patterns of thought affect the anatomy of our brains. Pascual-Leone recruited people who had no experience playing a piano, and he taught them how to play a simple melody consisting of a short series of notes. He then split the participants into two groups. He had the members of one group practice the melody on a keyboard for two hours a day over the next five days. he had the members of the other group sit in front of a keyboard for the same amount of time but only imagine playing the song--without ever touching the keys. Using a technique called transcranial magnetic stimulation, or TMS, Pascual-Leone mapped the brain activity of all the participants before, during, and after the test. he found that the people who had only imagined playing the notes exhibited precisely the same changes in their brains as those who had actually pressed the keys. Their brains had changed in response to actions that took place purely in their imaginations--in response, that is, to their thoughts. Descartes may have been wrong about dualism, but he appears to have been correct in believing that our thoughts can exert a physical influence on, or at least cause a physical reaction in, our brains. We become, neurologically, what we think. (p33)

The Net grants us instant access to a library of information unprecedented in its size and scope, and it makes it easy for us to sort through that library—to find, if not exactly what we were looking for, at least something sufficient for our immediate purposes. What the Net diminishes is Johnson’s primary kind of knowledge: the ability to know, in depth, a subject for ourselves, to construct within our own minds the rich and idiosyncratic set of connections that give rise to a singular intelligence.

The influx of competing messages that we receive whenever we go online not only overloads our working memory; it makes it much harder for our frontal lobes to concentrate our attention on any one thing. The process of memory consolidation can’t even get started. And, thanks once again to the plasticity of our neuronal pathways, the more we use the Web, the more we train our brain to be distracted—to process information very quickly and very efficiently but without sustained attention. That helps explain why many of us find it hard to concentrate even when we’re away from our computers. Our brains become adept at forgetting, inept at remembering. Our growing dependence on the Web’s information stores may in fact be the product of a self-perpetuating, self-amplifying loop. As our use of the Web makes it harder for us to lock information into our biological memory, we’re forced to rely more and more on the Net’s capacious and easily searchable artificial memory, even if it makes us shallower thinkers.

The intellectual ethic of a technology is rarely recognized by its inventors. They are usually so intent on solving a particular problem or untangling some thorny scientific or engineering dilemma that they don't see the broader implications of their work. The users of the technology are also usually oblivious to its ethic. They, too, are concerned with the practical benefits they gain from employing the tool. Our ancestors didn't develop or use maps in order to enhance their capacity for conceptual thinking or to bring the world's hidden structures to light. Nor did they manufacture mechanical clocks to spur the adoption of a more scientific mode of thinking. These were by-products of the technologies. But what by-products! Ultimately, it's an invention's intellectual work ethic that has the most profound effect on us.

Reading a book was a meditative act, but it didn’t involve a clearing of the mind. It involved a filling, or replenishing, of the mind. Readers disengaged their attention from the outward flow of passing stimuli in order to engage it more deeply with an inward flow of words, ideas, and emotions. That was—and is—the essence of the unique mental process of deep reading. It was the technology of the book that made this “strange anomaly” in our psychological history possible. The brain of the book reader was more than a literate brain. It was a literary brain.

A search engine often draws our attention to a particular snippet of text, a few words or sentences that have strong relevance to whatever we're searching for at the moment, while providing little incentive for taking in the work as a whole. We don't see the forest when we search the Web. We don't even see the trees. We see twigs and leaves.

Google, as the supplier of the Web’s principal navigational tools, also shapes our relationship with the content that it serves up so efficiently and in such profusion. The intellectual technologies it has pioneered promote the speedy, superficial skimming of information and discourage any deep, prolonged engagement with a single argument, idea, or narrative.

The bond between book reader and book writer has always been a tightly symbiotic one, a means of intellectual and artistic cross-fertilization. The words of the writer act as a catalyst in the mind of the reader, inspiring new insights, associations, and perceptions, sometimes even epiphanies. And the very existence of the attentive, critical reader provides the spur for the writer’s work. It gives the author the confidence to explore new forms of expression, to blaze difficult and demanding paths of thought, to venture into uncharted and sometimes hazardous territory. “All great men have written proudly, nor cared to explain,” said Emerson. “They knew that the intelligent reader would come at last, and would thank them.”36

As a society, we've become suspicious of such acts. Out of ignorance or laziness or timidity, we've turned the Luddites into caricatures, emblems of backwardness. We assume that anyone who rejects a new tool in favor of an older one is guilty of nostalgia, of making choices sentimentally rather than rationally. But the real sentimental fallacy is the assumption that the new thing is always better suited to our purposes and intentions than the old thing. That's the view of a child, naive and pliable. What makes one tool superior to another has nothing to do with how new it is. What matters is how it enlarges us or diminishes us, how it shapes our experience of nature and culture and one another. To cede choices about the texture of our daily lives to a grand abstraction called progress is folly.

In one recent experiment, Damasio and his colleagues had subjects listen to stories describing people experiencing physical or psychological pain. The subjects were then put into a magnetic resonance imaging machine and their brains were scanned as they were asked to remember the stories. The experiment revealed that while the human brain reacts very quickly to demonstrations of physical pain-when you see someone injured, the primitive pain centers in your own brain activate almost instantaneously- the more sophisticated mental process of empathizing with psychological suffering unfolds much more slowly. It takes time, the researchers discovered, for the brain "to transcend immediate involvement of the body" and begin to understand and to feel "the psychological and moral dimensions of a situation." (p220)

Our desire to segregate the mind’s cogitations from the body’s exertions reflects the grip that Cartesian dualism still holds on us. When we think about thinking, we’re quick to locate our mind, and hence our self, in the gray matter inside our skull and to see the rest of the body as a mechanical life-support system that keeps the neural circuits charged. More than a fancy of philosophers like Descartes and his predecessor Plato, this dualistic view of mind and body as operating in isolation from each other appears to be a side effect of consciousness itself. Even though the bulk of the mind’s work goes on behind the scenes, in the shadows of the unconscious, we’re aware only of the small but brightly lit window that the conscious mind opens for us. And our conscious mind tells us, insistently, that it’s separate from the body.

When the Net absorbs a medium, it re-creates that medium in its own image. It not only dissolves the medium's physical form; it injects the medium's content with hyperlinks, breaks up the content into searchable chunks, and surrounds the content with the content of all the other media it has absorbed. All these changes in the form of the content also change the way we use, experience, and even understand the content.

In 2003, a Dutch clinical psychologist named Christof van Nimwegen began a fascinating study of computer-aided learning that a BBC writer would later call “one of the most interesting examinations of current computer use and the potential downsides of our increasing reliance on screen-based interaction with information systems.”26 Van Nimwegen had two groups of volunteers work through a tricky logic puzzle on a computer. The puzzle involved transferring colored balls between two boxes in accordance with a set of rules governing which balls could be moved at which time. One of the groups used software that had been designed to be as helpful as possible. It offered on-screen assistance during the course of solving the puzzle, providing visual cues, for instance, to highlight permitted moves. The other group used a bare-bones program, which provided no hints or other guidance. In the early stages of solving the puzzle, the group using the helpful software made correct moves more quickly than the other group, as would be expected. But as the test proceeded, the proficiency of the members of the group using the bare-bones software increased more rapidly. In the end, those using the unhelpful program were able to solve the puzzle more quickly and with fewer wrong moves. They also reached fewer impasses—states in which no further moves were possible—than did the people using the helpful software. The findings indicated, as van Nimwegen reported, that those using the unhelpful software were better able to plan ahead and plot strategy, while those using the helpful software tended to rely on simple trial and error. Often, in fact, those with the helpful software were found “to aimlessly click around” as they tried to crack the puzzle.

Our modern microscopes, scanners, and sensors have disabused us of most of the old fanciful notions about the brain’s function. But the brain’s strangely remote quality—the way it seems both part of us and apart from us—still influences our perceptions in subtle ways. We have a sense that our brain exists in a state of splendid isolation, that its fundamental nature is impervious to the vagaries of our day-to-day lives. While we know that our brain is an exquisitely sensitive monitor of experience, we want to believe that it lies beyond the influence of experience. We want to believe that the impressions our brain records as sensations and stores as memories leave no physical imprint on its own structure. To believe otherwise would, we feel, call into question the integrity of the self.

The results of the most recent such study were published in Psychological Science at the end of 2008. A team of University of Michigan researchers, led by psychologist Marc Berman, recruited some three dozen people and subjected them to a rigorous, and mentally fatiguing, series of tests designed to measure the capacity of their working memory and their ability to exert top-down control over their attention. The subjects were then divided into two groups. Half of them spent about an hour walking through a secluded woodland park, and the other half spent an equal amount of time walking along busy down town streets. Both groups then took the tests a second time. Spending time in the park, the researchers found, “significantly improved” people’s performance on the cognitive tests, indicating a substantial increase in attentiveness. Walking in the city, by contrast, led to no improvement in test results. The researchers then conducted a similar experiment with another set of people. Rather than taking walks between the rounds of testing, these subjects simply looked at photographs of either calm rural scenes or busy urban ones. The results were the same. The people who looked at pictures of nature scenes were able to exert substantially stronger control over their attention, while those who looked at city scenes showed no improvement in their attentiveness. “In sum,” concluded the researchers, “simple and brief interactions with nature can produce marked increases in cognitive control.” Spending time in the natural world seems to be of “vital importance” to “effective cognitive functioning.

In explaining the way that trivial, if diverting, pursuits like Guitar Hero provide an easy alternative to meaningful work, Horning draws on the writing of political theorist Jon Elster. In his 1986 book An Introduction to Karl Marx, Elster used a simple example to illustrate the psychic difference between the hard work of developing talent and the easy work of consuming stuff: Compare playing the piano with eating lamb chops. The first time one practices the piano it is difficult, even painfully so. By contrast, most people enjoy lamb chops the first time they eat them. Over time, however, these patterns are reversed. Playing the piano becomes increasingly more rewarding, whereas the taste for lamb chops becomes satiated and jaded with repeated, frequent consumption. Elster then made a broader point: Activities of self-realization are subject to increasing marginal utility: They become more enjoyable the more one has already engaged in them. Exactly the opposite is true of consumption. To derive sustained pleasure from consumption, diversity is essential. Diversity, on the other hand, is an obstacle to successful self-realization, as it prevents one from getting into the later and more rewarding stages. “Consumerism,” comments Horning, “keeps us well supplied with stuff and seems to enrich our identities by allowing us to become familiar with a wide range of phenomena—a process that the internet has accelerated immeasurably. . . . But this comes at the expense with developing any sense of mastery of anything, eroding over time the sense that mastery is possible, or worth pursuing.” Distraction is the permanent end state of the perfected consumer, not least because distraction is a state that is eminently programmable. To buy a guitar is to open possibilities. To buy Guitar Hero is to close them. A