Skip navigation

Tag Archives: informações

Do meu ídolo Nick Carr.

“It’s not information overload. It’s filter failure.” That was the main theme of a thoughtful and influential talk that Clay Shirky gave at a technology conference back in 2008. It’s an idea that’s easy to like both because it feels intuitively correct and because it’s reassuring: better filters will help reduce information overload, and better filters are things we can actually build. Information overload isn’t an inevitable side effect of information abundance. It’s a problem that has a solution. So let’s roll up our sleeves and start coding.

There was one thing that bugged me, though, about Shirky’s idea, and it was this paradox: The quality and speed of our information filters have been improving steadily for a few centuries, and have been improving extraordinarily quickly for the last two decades, and yet our sense of being overloaded with information is stronger than ever. If, as Shirky argues, improved filters will reduce overload, then why haven’t they done so up until now? Why don’t we feel that information overload is subsiding as a problem rather than getting worse? The reason, I’ve come to believe, is that Shirky’s formulation gets it precisely backwards. Better filters don’t mitigate information overload; they intensify it. It would be more accurate to say: “It’s not information overload. It’s filter success.”

But let me back up a little, because it’s actually more complicated than that. One of the traps we fall into when we talk about information overload is that we’re usually talking about two very different things as if they were one thing. Information overload actually takes two forms, which I’ll call situational overload and ambient overload, and they need to be treated separately.

Situational overload is the needle-in-the-haystack problem: You need a particular piece of information – in order to answer a question of one sort or another – and that piece of information is buried in a bunch of other pieces of information. The challenge is to pinpoint the required information, to extract the needle from the haystack, and to do it as quickly as possible. Filters have always been pretty effective at solving the problem of situational overload. The introduction of indexes and concordances – made possible by the earlier invention of alphabetization – helped solve the problem with books. Card catalogues and the Dewey decimal system helped solve the problem with libraries. Train and boat schedules helped solve the problem with transport. The Reader’s Guide to Periodicals helped solve the problem with magazines. And search engines and other computerized navigational and organizational tools have helped solve the problem with online databases.

Whenever a new information medium comes along, we tend to quickly develop good filtering tools that enable us to sort and search the contents of the medium. That’s as true today as it’s ever been. In general, I think you could make a strong case that, even though the amount of information available to us has exploded in recent years, the problem of situational overload has continued to abate. Yes, there are still frustrating moments when our filters give us the hay instead of the needle, but for most questions most of the time, search engines and other digital filters, or software-based, human-powered filters like email or Twitter, are able to serve up good answers in an eyeblink or two.

Situational overload is not the problem. When we complain about information overload, what we’re usually complaining about is ambient overload. This is an altogether different beast. Ambient overload doesn’t involve needles in haystacks. It involves haystack-sized piles of needles. We experience ambient overload when we’re surrounded by so much information that is of immediate interest to us that we feel overwhelmed by the neverending pressure of trying to keep up with it all. We keep clicking links, keep hitting the refresh key, keep opening new tabs, keep checking email in-boxes and RSS feeds, keep scanning Amazon and Netflix recommendations – and yet the pile of interesting information never shrinks.

The cause of situational overload is too much noise. The cause of ambient overload is too much signal.

Berkman Fellow David Weinberger investigates the origin of modern “information”, trying to understand what about it led us to embrace it as the dominant–paradigmatic–way of understanding ourselves and our world. David Weinberger will present an informal sketch of a direction, suggesting that we leaped into information because it reflected a long-held but squirrely metaphysics.

Esse slide é foda!

Eu já postei algumas observações do fodástico Ethan Zuckerman sobre essa palestra. Vale a lida.

Embasbacante, os caras botaram pra fuder!

O mais foda é que no final do vídeo o cara pede algum termo “obscuro” para colocar em seu sistema de busca e provar que os resultados apresentados não eram pré-criados. Aí alguém respondeu: “Brasil!”.

Via Brainstorm9

Via Indexed

Troquei uma idéia sobre o mercado livros com o Pedro esses dias, dai achei um post interessante, do Seth Godin, onde ele fala sobre livros. Decidi roubar.

When in doubt, disaggregate

The typical American buys precisely one book a year.


Of course, this isn’t true, because when it comes to books, there is no typical American. There are a lot of Americans who buy zero books for pleasure each year. And then there are people like me who buy 400. The average is irrelevant.

When you can’t figure out the best way to treat all your customers, the best way to price things, the best thing to offer, realize that the problem is almost always this: you’re trying to treat everyone the same. Don’t. Break them into groups with similar attributes, and suddenly the path becomes a lot more clear.

O final é estilão livro de “auto ajuda de marketing”, mas é um post do Seth Godin. Tem que vender “mermão”!


in truly chaordic organization there is no destination. There is no ultimate being. There is only becoming.

Citações como essa você encontra no melhor blog que eu esbarrei por aí nos últimos tempos, Situated Urbanism.

Artigo foda do NYT sobre como a internet está mudando a cultura. Vale muito a leitura.

TODAY’S TECHNOLOGY has bestowed miracles of access and convenience upon millions of people, and it’s also proven to be a vital new means of communication. Twitter has been used by Iranian dissidents; text messaging and social networking Web sites have been used to help coordinate humanitarian aid in Haiti; YouTube has been used by professors to teach math and chemistry. But technology is also turning us into a global water-cooler culture, with millions of people sending each other (via e-mail, text messages, tweets, YouTube links) gossip, rumors and the sort of amusing-entertaining-weird anecdotes and photographs they might once have shared with pals over a coffee break. And in an effort to collect valuable eyeballs and clicks, media outlets are increasingly pandering to that impulse — often at the expense of hard news. “I have the theory that news is now driven not by editors who know anything,” the comedian and commentator Bill Maher recently observed. “I think it’s driven by people who are” slacking off at work and “surfing the Internet.” He added, “It’s like a country run by ‘America’s Funniest Home Videos.’ ”

Given the constant bombardment of trivia and data that we’re subjected to in today’s mediascape, it’s little wonder that noisy, Manichean arguments tend to get more attention than subtle, policy-heavy ones; that funny, snarky or willfully provocative assertions often gain more traction than earnest, measured ones; and that loud, entertaining or controversial personalities tend to get the most ink and airtime. This is why Sarah Palin’s every move and pronouncement is followed by television news, talk-show hosts and pundits of every political persuasion. This is why Glenn Beck and Rush Limbaugh on the right and Michael Moore on the left are repeatedly quoted by followers and opponents. This is why a gathering of 600 people for last month’s national Tea Party convention in Nashville received a disproportionate amount of coverage from both the mainstream news media and the blogosphere.

Um trecho que me assustou:

In a recent Newsweek cover story pegged to the Tiger Woods scandal, Neal Gabler, the author of “Life: the Movie: How Entertainment Conquered Reality,” absurdly asserts that celebrity is “the great new art form of the 21st century.”

Celebrity, Mr. Gabler argues, “competes with — and often supersedes — more traditional entertainments like movies, books, plays and TV shows,” and it performs, he says, “in its own roundabout way, many of the functions those old media performed in their heyday: among them, distracting us, sensitizing us to the human condition, and creating a fund of common experience around which we can form a national community.”

Um fechamento foda!

Writing in a 2005 Wired article that “new technologies redefine us,” William Gibson hailed audience participation and argued that “an endless, recombinant, and fundamentally social process generates countless hours of creative product.” Indeed, he said, “audience is as antique a term as record, the one archaically passive, the other archaically physical. The record, not the remix, is the anomaly today. The remix is the very nature of the digital.”

To Mr. Lanier, however, the prevalence of mash-ups in today’s culture is a sign of “nostalgic malaise.” “Online culture,” he writes, “is dominated by trivial mash-ups of the culture that existed before the onset of mash-ups, and by fandom responding to the dwindling outposts of centralized mass media. It is a culture of reaction without action.”

He points out that much of the chatter online today is actually “driven by fan responses to expression that was originally created within the sphere of old media,” which many digerati mock as old-fashioned and passé, and which is now being destroyed by the Internet. “Comments about TV shows, major movies, commercial music releases and video games must be responsible for almost as much bit traffic as porn,” Mr. Lanier writes. “There is certainly nothing wrong with that, but since the Web is killing the old media, we face a situation in which culture is effectively eating its own seed stock.”

Em sua pergunta anual, o TED questionou como a internet estava mudando a forma como pensamos. Eis a resposta de Nasssim Taleb.

I used to think that the problem of information is that it turns homo sapiens into fools — we gain disproportionately in confidence, particularly in domains where information is wrapped in a high degree of noise (say, epidemiology, genetics, economics, etc.). So we end up thinking that we know more than we do, which, in economic life, causes foolish risk taking.

So consider the explosive situation: more information (particularly thanks to the Internet) causes more confidence and illusions of knowledge while degrading predictability.

A forma como o cara encara o excesso de informações é fascinante.

Look at this current economic crisis that started in 2008: there are about a million persons on the planet who identify themselves in the field of economics. Yet just a handful realized the possibility and depth of what could have taken place and protected themselves from the consequences. At no time in the history of mankind have we lived under so much ignorance (easily measured in terms of forecast errors) coupled with so much intellectual hubris. At no point have we had central bankers missing elementary risk metrics, like debt levels, that even the Babylonians understood well.

I recently talked to a scholar of rare wisdom and erudition, Jon Elster, who upon exploring themes from social science, integrates insights from all authors in the corpus of the past 2500 years, from Cicero and Seneca, to Montaigne and Proust. He showed me how Seneca had a very sophisticated understanding of loss aversion. I felt guilty for the time I spent on the Internet. Upon getting home I found in my mail a volume of posthumous essays by bishop Pierre-Daniel Huet called Huetiana, put together by his admirers c. 1722. It is so saddening to realize that, being born close to four centuries after Huet, and having done most of my reading with material written after his death, I am not much more advanced in wisdom than he was — moderns at the upper end are no wiser than their equivalent among the ancients; if anything, much less refined.

Um fechamento sensacional:

True, technologies are the greatest things in the world, but they have way too monstrous side effects — and ones rarely seen ahead of time. And since spending time in the silence of my library, with little informational pollution, I can feel harmony with my genes; I feel I am growing again.

“I think it is legitimate to take a broader view, and include externally transmitted information, as well as DNA, in the evolution of the human race,”

A frase acima é de Stephen Hawking, em um puta texto que eu esbarrei por aí.

Although It has taken homo sapiens several million years to evolve from the apes, the useful information in our DNA, has probably changed by only a few million bits. So the rate of biological evolution in humans, Stephen Hawking points out in his Life in the Universe lecture, is about a bit a year.

This means Hawking says that we have entered a new phase of evolution. “At first, evolution proceeded by natural selection, from random mutations. This Darwinian phase, lasted about three and a half billion years, and produced us, beings who developed language, to exchange information.”

But what distinguishes us from our cave man ancestors is the knowledge that we have accumulated over the last ten thousand years, and particularly, Hawking points out, over the last three hundred.

In the last ten thousand years the human species has been in what Hawking calls, “an external transmission phase,” where the internal record of information, handed down to succeeding generations in DNA, has not changed significantly. “But the external record, in books, and other long lasting forms of storage,” Hawking says, “has grown enormously. Some people would use the term, evolution, only for the internally transmitted genetic material, and would object to it being applied to information handed down externally. But I think that is too narrow a view. We are more than just our genes.”

Meanwhile, Hawking observes, our human brains “with which we process this information have evolved only on the Darwinian time scale, of hundreds of thousands of years. This is beginning to cause problems. In the 18th century, there was said to be a man who had read every book written. But nowadays, if you read one book a day, it would take you about 15,000 years to read through the books in a national Library. By which time, many more books would have been written.”

But we are now entering a new phase, of what Hawking calls “self designed evolution,” in which we will be able to change and improve our DNA. “At first,” he continues “these changes will be confined to the repair of genetic defects, like cystic fibrosis, and muscular dystrophy. These are controlled by single genes, and so are fairly easy to identify, and correct. Other qualities, such as intelligence, are probably controlled by a large number of genes. It will be much more difficult to find them, and work out the relations between them. Nevertheless, I am sure that during the next century, people will discover how to modify both intelligence, and instincts like aggression.”

Olha o naipe do último parágrafo:

If the human race manages to redesign itself, to reduce or eliminate the risk of self-destruction, we will probably reach out to the stars and colonize other planets. But this will be done, Hawking believes, with intelligent machines based on mechanical and electronic components, rather than macromolecules, which could eventually replace DNA based life, just as DNA may have replaced an earlier form of life.

Isso tem a ver com esse texto que eu já postei aqui ou sou eu que estou viajando?

As we know, information is fed by attention, so we have not enough attention, not enough food for all this information. And, as we know — this is the old Darwinian thought, the moment when Darwin started reading Malthus — when you have a conflict between a population explosion and not enough food, then Darwinian selection starts. And Darwinian systems start to change situations. And so what interests me is that we are, because we have the Internet, now entering a phase where Darwinian structures, where Darwinian dynamics, Darwinian selection, apparently attacks ideas themselves: what to remember, what not to remember, which idea is stronger, which idea is weaker.