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The Fall of Facebook - The Atlantic - 0 views

  • Alexis C. Madrigal Nov 17 2014, 7:59 PM ET Social networking is not, it turns out, winner take all. In the past, one might have imagined that switching between Facebook and “some other network” would be difficult, but the smartphone interface makes it easy to be on a dozen networks. All messages come to the same place—the phone’s notifications screen—so what matters is what your friends are doing, not which apps they’re using.
  • if I were to put money on an area in which Facebook might be unable to dominate in the future, it would be apps that take advantage of physical proximity. Something radically new could arise on that front, whether it’s an evolution of Yik Yak
  • The Social Machine, predicts that text will be a less and less important part of our asynchronous communications mix. Instead, she foresees a “very fluid interface” that would mix text with voice, video, sensor outputs (location, say, or vital signs), and who knows what else
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  • the forthcoming Apple Watch seems like a step toward the future Donath envisions. Users will be able to send animated smiley faces, drawings, voice snippets, and even their live heartbeats, which will be tapped out on the receiver’s wrist.
  • A simple but rich messaging platform—perhaps with specialized hardware—could replace the omnibus social network for most purposes. “I think we’re shifting in a weird way to one-on-one conversations on social networks and in messaging apps,” says Shani Hilton, the executive editor for news at BuzzFeed, the viral-media site. “People don’t want to perform their lives publicly in the same way that they wanted to five years ago.”
  • Facebook is built around a trade-off that it has asked users to make: Give us all your personal information, post all your pictures, tag all your friends, and so on, forever. In return, we’ll optimize your social life. But this output is only as good as the input. And it turns out that, when scaled up, creating this input—making yourself legible enough to the Facebook machine that your posts are deemed “relevant” and worthy of being displayed to your mom and your friends—is exhausting labor.
  • These new apps, then, are arguments that we can still have an Internet that is weird, and private. That we can still have social networks without the social network. And that we can still have friends on the Internet without “friending” them.
  • A Brief History of Information Gatekeepers 1871: Western Union controls 90 percent of U.S. telegraph traffic. 1947: 97 percent of the country’s radio stations are affiliated with one of four national networks. 1969: Viewership for the three nightly network newscasts hits an all-time high, with 50 percent of all American homes tuning in. 1997: About half of all American homes with Internet access get it through America Online. 2002: Microsoft Internet Explorer captures 97 percent of the worldwide browser market. 2014: Amazon sells 63 percent of all books bought online—and 40 percent of books overall.
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'A Great Moment': Rover Finds Methane, a Clue That Mars May Harbor Life - 0 views

  • SAN FRANCISCO — Life on Mars? Today? The notion may not be so far-fetched after all.
  • Curiosity has now recorded a burst of methane that lasted at least two months.
  • for the first time, they had confirmed the presence of carbon-based organic molecules in a rock sample. The so-called organics are not direct signs of life, past or present, but they lend weight to the possibility that Mars had the ingredients required for life, and may even still have them.
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  • Even if the explanation for the methane turns out to be geological, the hydrothermal systems would still be prime locations to search for signs of life
  • But the new findings, which are described in detail in a paper this week in the journal Science, are a 180-degree flip from a year ago, when mission scientists said that Curiosity had found no signs of methane, placing an upper limit of 1.3 parts per billion by volume.
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    Methane is found on Mars suggesting that there is life on Mars. This is a big change from what scientists knew only a year ago. Theories can change at any time, and when new ones are made, old ones are discarded.
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Philosophy's True Home - The New York Times - 0 views

  • We’ve all heard the argument that philosophy is isolated, an “ivory tower” discipline cut off from virtually every other progress-making pursuit of knowledge, including math and the sciences, as well as from the actual concerns of daily life. The reasons given for this are many. In a widely read essay in this series, “When Philosophy Lost Its Way,” Robert Frodeman and Adam Briggle claim that it was philosophy’s institutionalization in the university in the late 19th century that separated it from the study of humanity and nature, now the province of social and natural sciences.
  • This institutionalization, the authors claim, led it to betray its central aim of articulating the knowledge needed to live virtuous and rewarding lives. I have a different view: Philosophy isn’t separated from the social, natural or mathematical sciences, nor is it neglecting the study of goodness, justice and virtue, which was never its central aim.
  • identified philosophy with informal linguistic analysis. Fortunately, this narrow view didn’t stop them from contributing to the science of language and the study of law. Now long gone, neither movement defined the philosophy of its day and neither arose from locating it in universities.
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  • The authors claim that philosophy abandoned its relationship to other disciplines by creating its own purified domain, accessible only to credentialed professionals. It is true that from roughly 1930 to 1950, some philosophers — logical empiricists, in particular — did speak of philosophy having its own exclusive subject matter. But since that subject matter was logical analysis aimed at unifying all of science, interdisciplinarity was front and center.
  • Philosophy also played a role in 20th-century physics, influencing the great physicists Albert Einstein, Niels Bohr and Werner Heisenberg. The philosophers Moritz Schlick and Hans Reichenbach reciprocated that interest by assimilating the new physics into their philosophies.
  • developed ideas relating logic to linguistic meaning that provided a framework for studying meaning in all human languages. Others, including Paul Grice and J.L. Austin, explained how linguistic meaning mixes with contextual information to enrich communicative contents and how certain linguistic performances change social facts. Today a new philosophical conception of the relationship between meaning and cognition adds a further dimension to linguistic science.
  • Decision theory — the science of rational norms governing action, belief and decision under uncertainty — was developed by the 20th-century philosophers Frank Ramsey, Rudolph Carnap, Richard Jeffrey and others. It plays a foundational role in political science and economics by telling us what rationality requires, given our evidence, priorities and the strength of our beliefs. Today, no area of philosophy is more successful in attracting top young minds.
  • Philosophy also assisted psychology in its long march away from narrow behaviorism and speculative Freudianism. The mid-20th-century functionalist perspective pioneered by Hilary Putnam was particularly important. According to it, pain, pleasure and belief are neither behavioral dispositions nor bare neurological states. They are interacting internal causes, capable of very different physical realizations, that serve the goals of individuals in specific ways. This view is now embedded in cognitive psychology and neuroscience.
  • philosopher-mathematicians Gottlob Frege, Bertrand Russell, Kurt Gödel, Alonzo Church and Alan Turing invented symbolic logic, helped establish the set-theoretic foundations of mathematics, and gave us the formal theory of computation that ushered in the digital age
  • Philosophy of biology is following a similar path. Today’s philosophy of science is less accessible than Aristotle’s natural philosophy chiefly because it systematizes a larger, more technically sophisticated body of knowledge.
  • Philosophy’s interaction with mathematics, linguistics, economics, political science, psychology and physics requires specialization. Far from fostering isolation, this specialization makes communication and cooperation among disciplines possible. This has always been so.
  • Nor did scientific progress rob philosophy of its former scientific subject matter, leaving it to concentrate on the broadly moral. In fact, philosophy thrives when enough is known to make progress conceivable, but it remains unachieved because of methodological confusion. Philosophy helps break the impasse by articulating new questions, posing possible solutions and forging new conceptual tools.
  • Our knowledge of the universe and ourselves expands like a ripple surrounding a pebble dropped in a pool. As we move away from the center of the spreading circle, its area, representing our secure knowledge, grows. But so does its circumference, representing the border where knowledge blurs into uncertainty and speculation, and methodological confusion returns. Philosophy patrols the border, trying to understand how we got there and to conceptualize our next move.  Its job is unending.
  • Although progress in ethics, political philosophy and the illumination of life’s meaning has been less impressive than advances in some other areas, it is accelerating.
  • the advances in our understanding because of careful formulation and critical evaluation of theories of goodness, rightness, justice and human flourishing by philosophers since 1970 compare well to the advances made by philosophers from Aristotle to 1970
  • The knowledge required to maintain philosophy’s continuing task, including its vital connection to other disciplines, is too vast to be held in one mind. Despite the often-repeated idea that philosophy’s true calling can only be fulfilled in the public square, philosophers actually function best in universities, where they acquire and share knowledge with their colleagues in other disciplines. It is also vital for philosophers to engage students — both those who major in the subject, and those who do not. Although philosophy has never had a mass audience, it remains remarkably accessible to the average student; unlike the natural sciences, its frontiers can be reached in a few undergraduate courses.
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Ladies and Gentlemen: Welcome to the Trump Show - US News - 0 views

  • He has a remarkable ability to hold onto the loyalty of his backers, and his rallies help explain why.
  • "He wants to make America great again,"
  • feeds the notion that the government is catering to special interests and is giving things away to placate different constituencies.
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  • There is often a moment at a Trump rally when the candidate looks for or notices a small group of protesters. He points them out, sometimes in a mocking tone. This stirs up the crowd
  • point
  • Another easy target is the news media, and Trump likes to point out the location of the TV cameras in the back of the room and the reporters nearby as he berates the media as dishonest.
  • His well-tailored suits and bearing make him look fit and athletic.
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This is why the Paris attacks have gotten more news coverage than other terrorist attac... - 1 views

  • probably bias in the coverage. People are more likely to be concerned about victims they can identify with. Research tells us that U.S. media outlets are more likely to cover terrorist attacks with U.S. victims. The news media are more likely to cover disasters in wealthier countries. And tragedies that are physically closer to the United States are more likely to appear in U.S. news
  • First, “news” is generally considered to be something especially unusual. The journalism truism is that “dog bites man” is not a story, but “man bites dog” is. That’s not a judgment on whether dog bites matter; it’s a judgment about what’s surprising.
  • news outlets are influenced by their consumers. Human beings are especially interested in events that might affect them personally.
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  • One reason the attack drew so much international attention was that France doesn’t experience nearly as much terrorism as countries with comparable recent attacks, such as Lebanon or Kenya.
  • attacks were unusually terrifying precisely because they did not target a particular class of people — such as only Christians, university students, or government officials. They targeted anyone and everyone. A life lost in this manner is not “more tragic” than a life lost in a civil war. However, it might be more newsworthy, because it’s unusual
  • Terrorists, of course, seek out such targets. Attacking tourism hot spots is excellent for drawing attention to their cause.
  • The attack on Paris also shocked observers around the world because many have been there, or plan to visit. France is the most visited country in the world. This creates an “it could happen to me” factor, and also suggests that terrorism could affect someone we know.
  • The Paris attack also stands out for the tactics used by the perpetrators. This attack played out over time in multiple public locations. It also seemed to target everyone, instead of a specific group.
  • drawing international attention because it suggests a new outward turn for the Islamic State
  • The Islamic State leadership apparently directed the attack, according to French officials. That would set it apart from attacks that were only inspired by the group, such as the few killings that have occurred in Western countries in the past year.
  • One reason why we often see lone-actor attacks in high-capability states is that organized terror is difficult to accomplish in these countries
  • realization that the Islamic State is apparently willing and able to carry out complex, coordinated attacks in developed countries outside of its home region has European security services worried. Beyond Europe, what other targets might be next? This further adds to the global interest
  • Paris attack shocked the world for many reasons. It’s true that terrorism in less-developed countries is worth our attention as well. Crises, such as the Syrian civil war, deserve much more media coverage and policy focus. But the Paris attack continues to draw interest because of the relative rarity of terrorism in France, the fact that the country receives visitors from around the globe, the shocking nature of the attack, and the potential implications for the Islamic State’s future plans.
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BBC - Future - Why does it feel like I'm falling as I go to sleep? - 1 views

  • experienced sudden, jerky body movements as you drift into sleep. The sensation is common, and if paired with a dream, can feel like you’ve suddenly moved or fallen.
  • this is called dream incorporation, and reveals our mind’s amazing capacity to improvise
  • The experience is known as a ‘hypnic jerk’ and it sheds light onto the conflict in our brains as we shut down for sleep.
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  • In sleep our bodies are paralysed, and we become oblivious to events in the outside world. But our muscle control isn’t flicked off like a switch.
  • reticular activating system controls our basic functions, like breathing, and tells us whether we feel alert. In contrast, the ventrolateral preoptic nucleus, located near the optic nerve, dictates tiredness. As we descend into sleep, the reticular activating system releases control of our body and the venterolateral preoptic nucleus takes over. The process is like a slow fade
  • Random bursts of our remaining wakeful energy occasionally surface in the form of jerky movements
  • unpleasant phenomenon called ‘exploding head syndrome’ follows a similar pattern of behaviour – our wakeful and sleeping minds attempting to wrest control from each other – and results in the sensation of seeing flashing lights and hearing loud bangs
  • feeling is nothing to worry about; it’s just a funny coincidence of falling asleep
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'Brain training' app may improve memory, daily functioning of people with schizophrenia... - 0 views

  • A 'brain training' iPad game developed and tested by researchers at the University of Cambridge may improve the memory of patients with schizophrenia
  • Schizophrenia is a long-term mental health condition that causes a range of psychological symptoms, ranging from changes in behaviour through to hallucinations and delusions
  • patients are still left with debilitating cognitive impairments, including in their memory
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  • increasing evidence that computer-assisted training and rehabilitation can help people with schizophrenia overcome some of their symptoms
  • Schizophrenia is estimated to cost £13.1 billion per year in total in the UK, so even small improvements in cognitive functions could help patients make the transition to independent living
  • The game, Wizard, was the result of a nine-month collaboration between psychologists, neuroscientists, a professional game-developer and people with schizophrenia
  • The memory task was woven into a narrative in which the player was allowed to choose their own character and name; the game rewarded progress with additional in-game activities to provide the user with a sense of progression independent of the cognitive training process
  • Participants in the training group played the memory game for a total of eight hours over a four-week period; participants in the control group continued their treatment as usual. At the end of the four weeks, the researchers tested all participants' episodic memory using the Cambridge Neuropsychological Test Automated Battery (CANTAB) PAL, as well as their level of enjoyment and motivation, and their score on the Global Assessment of Functioning (GAF) scale
  • patients who had played the memory game made significantly fewer errors and needed significantly fewer attempts to remember the location of different patterns in the CANTAB PAL test relative to the control group. In addition, patients in the cognitive training group saw an increase in their score on the GAF scale
  • Because the game is interesting, even those patients with a general lack of motivation are spurred on to continue the training
  • used in conjunction with medication and current psychological therapies, this could help people with schizophrenia minimise the impact of their illness on everyday life
  • It is not clear exactly how the apps also improved the patients' daily functioning, but the researchers suggest it may be because improvements in memory had a direct impact on global functions or that the cognitive training may have had an indirect impact on functionality by improving general motivation and restoring self-esteem
  • This new app will allow the Wizard memory game to become widely available, inexpensively. State-of-the-art neuroscience at the University of Cambridge, combined with the innovative approach at Peak, will help bring the games industry to a new level and promote the benefits of cognitive enhancement
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After the Fact - The New Yorker - 1 views

  • newish is the rhetoric of unreality, the insistence, chiefly by Democrats, that some politicians are incapable of perceiving the truth because they have an epistemological deficit: they no longer believe in evidence, or even in objective reality.
  • the past of proof is strange and, on its uncertain future, much in public life turns. In the end, it comes down to this: the history of truth is cockamamie, and lately it’s been getting cockamamier.
  • . Michael P. Lynch is a philosopher of truth. His fascinating new book, “The Internet of Us: Knowing More and Understanding Less in the Age of Big Data,” begins with a thought experiment: “Imagine a society where smartphones are miniaturized and hooked directly into a person’s brain.” As thought experiments go, this one isn’t much of a stretch. (“Eventually, you’ll have an implant,” Google’s Larry Page has promised, “where if you think about a fact it will just tell you the answer.”) Now imagine that, after living with these implants for generations, people grow to rely on them, to know what they know and forget how people used to learn—by observation, inquiry, and reason. Then picture this: overnight, an environmental disaster destroys so much of the planet’s electronic-communications grid that everyone’s implant crashes. It would be, Lynch says, as if the whole world had suddenly gone blind. There would be no immediate basis on which to establish the truth of a fact. No one would really know anything anymore, because no one would know how to know. I Google, therefore I am not.
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  • In England, the abolition of trial by ordeal led to the adoption of trial by jury for criminal cases. This required a new doctrine of evidence and a new method of inquiry, and led to what the historian Barbara Shapiro has called “the culture of fact”: the idea that an observed or witnessed act or thing—the substance, the matter, of fact—is the basis of truth and the only kind of evidence that’s admissible not only in court but also in other realms where truth is arbitrated. Between the thirteenth century and the nineteenth, the fact spread from law outward to science, history, and journalism.
  • Lynch isn’t terribly interested in how we got here. He begins at the arrival gate. But altering the flight plan would seem to require going back to the gate of departure.
  • Lynch thinks we are frighteningly close to this point: blind to proof, no longer able to know. After all, we’re already no longer able to agree about how to know. (See: climate change, above.)
  • Empiricists believed they had deduced a method by which they could discover a universe of truth: impartial, verifiable knowledge. But the movement of judgment from God to man wreaked epistemological havoc.
  • For the length of the eighteenth century and much of the nineteenth, truth seemed more knowable, but after that it got murkier. Somewhere in the middle of the twentieth century, fundamentalism and postmodernism, the religious right and the academic left, met up: either the only truth is the truth of the divine or there is no truth; for both, empiricism is an error.
  • That epistemological havoc has never ended: much of contemporary discourse and pretty much all of American politics is a dispute over evidence. An American Presidential debate has a lot more in common with trial by combat than with trial by jury,
  • came the Internet. The era of the fact is coming to an end: the place once held by “facts” is being taken over by “data.” This is making for more epistemological mayhem, not least because the collection and weighing of facts require investigation, discernment, and judgment, while the collection and analysis of data are outsourced to machines
  • “Most knowing now is Google-knowing—knowledge acquired online,”
  • We now only rarely discover facts, Lynch observes; instead, we download them.
  • “The Internet didn’t create this problem, but it is exaggerating it,”
  • nothing could be less well settled in the twenty-first century than whether people know what they know from faith or from facts, or whether anything, in the end, can really be said to be fully proved.
  • In his 2012 book, “In Praise of Reason,” Lynch identified three sources of skepticism about reason: the suspicion that all reasoning is rationalization, the idea that science is just another faith, and the notion that objectivity is an illusion. These ideas have a specific intellectual history, and none of them are on the wane.
  • Their consequences, he believes, are dire: “Without a common background of standards against which we measure what counts as a reliable source of information, or a reliable method of inquiry, and what doesn’t, we won’t be able to agree on the facts, let alone values.
  • When we Google-know, Lynch argues, we no longer take responsibility for our own beliefs, and we lack the capacity to see how bits of facts fit into a larger whole
  • Essentially, we forfeit our reason and, in a republic, our citizenship. You can see how this works every time you try to get to the bottom of a story by reading the news on your smartphone.
  • what you see when you Google “Polish workers” is a function of, among other things, your language, your location, and your personal Web history. Reason can’t defend itself. Neither can Google.
  • rump doesn’t reason. He’s a lot like that kid who stole my bat. He wants combat. Cruz’s appeal is to the judgment of God. “Father God, please . . . awaken the body of Christ, that we might pull back from the abyss,” he preached on the campaign trail. Rubio’s appeal is to Google.
  • Is there another appeal? People who care about civil society have two choices: find some epistemic principles other than empiricism on which everyone can agree or else find some method other than reason with which to defend empiricism
  • Lynch suspects that doing the first of these things is not possible, but that the second might be. He thinks the best defense of reason is a common practical and ethical commitment.
  • That, anyway, is what Alexander Hamilton meant in the Federalist Papers, when he explained that the United States is an act of empirical inquiry: “It seems to have been reserved to the people of this country, by their conduct and example, to decide the important question, whether societies of men are really capable or not of establishing good government from reflection and choice, or whether they are forever destined to depend for their political constitutions on accident and force.”
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Just Don't Call It Privacy - The New York Times - 2 views

  • In a surveillance economy where companies track, analyze and capitalize on our clicks, the issue at hand isn’t privacy. The problem is unfettered data exploitation and its potential deleterious consequences — among them, unequal consumer treatment, financial fraud, identity theft, manipulative marketing and discrimination.
  • In other words, asking companies whose business models revolve around exploiting data-based consumer-influence techniques to explain their privacy policies seems about as useful as asking sharks to hold forth on veganism.
  • Do we want a future in which companies can freely parse the photos we posted last year, or the location data from the fitness apps we used last week, to infer whether we are stressed or depressed or financially strapped or emotionally vulnerable — and take advantage of that?
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  • Companies are sending their “policy and law folks to Washington to make the government go away — not the engineering folks who actually understand these systems in depth and can talk through alternatives,” Jonathan Mayer, an assistant professor of computer science and public affairs at Princeton University, told me.
  • revelations about Russian election interference and Cambridge Analytica, the voter-profiling company that obtained information on millions of Facebook users, have made it clear that data-driven influence campaigns can scale quickly and cause societal harm.
  • They should be examining business practices. They should be examining how these firms collect and use the personal data of customers, of internet users.”
  • AT&T’s privacy policy says the mobile phone and cable TV provider may use third-party data to categorize subscribers, without using their real names, into interest segments and show them ads accordingly. That sounds reasonable enough
  • AT&T can find out which subscribers have indigestion — or at least which ones bought over-the-counter drugs to treat it.
  • In a case study for advertisers, AT&T describes segmenting DirecTV subscribers who bought antacids and then targeting them with ads for the medication. The firm was also able to track those subscribers’ spending. Households who saw the antacid ads spent 725 percent more on the drugs than a national audience.
  • Michael Balmoris, a spokesman for AT&T, said the company’s privacy policy was “transparent and precise, and describes in plain language how we use information and the choices we give customers.”
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It's Time for a Real Code of Ethics in Teaching - Noah Berlatsky - The Atlantic - 3 views

  • More 5inShare Email Print A defendant in the Atlanta Public Schools case turns herself in at the Fulton County Jail on April 2. (David Goldman/AP) Earlier this week at The Atlantic, Emily Richmond asked whether high-stakes testing caused the Atlanta schools cheating scandal. The answer, I would argue, is yes... just not in the way you might think. Tests don't cause unethical behavior. But they did cause the Atlanta cheating scandal, and they are doing damage to the teaching profession. The argument that tests do not cause unethical behavior is fairly straightforward, and has been articulated by a number of writers. Jonathan Chait quite correctly points out that unethical behavior occurs in virtually all professions -- and that it occurs particularly when there are clear incentives to succeed. Incentivizing any field increases the impetus to cheat. Suppose journalism worked the way teaching traditionally had. You get hired at a newspaper, and your advancement and pay are dictated almost entirely by your years on the job, with almost no chance of either becoming a star or of getting fired for incompetence. Then imagine journalists changed that and instituted the current system, where you can get really successful if your bosses like you or be fired if they don't. You could look around and see scandal after scandal -- phone hacking! Jayson Blair! NBC's exploding truck! Janet Cooke! Stephen Glass! -- that could plausibly be attributed to this frightening new world in which journalists had an incentive to cheat in order to get ahead. It holds true of any field. If Major League Baseball instituted tenure, and maybe used tee-ball rules where you can't keep score and everybody gets a chance to hit, it could stamp out steroid use. Students have been cheating on tests forever -- massive, systematic cheating, you could say. Why? Because they have an incentive to do well. Give teachers and administrators an incentive for their students to do well, and more of them will cheat. For Chait, then, teaching has just been made more like journalism or baseball; it has gone from an incentiveless occupation to one with incentives.
  • Chait refers to violations of journalistic ethics -- like the phone-hacking scandal -- and suggests they are analogous to Major-League steroid use, and that both are similar to teachers (or students) cheating on tests. But is phone hacking "cheating"
  • Phone hacking was, then, not an example of cheating. It was a violation of professional ethics. And those ethics are not arbitrarily imposed, but are intrinsic to the practice of journalism as a profession committed to public service and to truth.
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  • Behaving ethically matters, but how it matters, and what it means, depends strongly on the context in which it occurs.
  • Ethics for teachers is not, apparently, first and foremost about educating their students, or broadening their minds. Rather, ethics for teachers in our current system consists in following the rules. The implicit, linguistic signal being given is that teachers are not like journalists or doctors, committed to a profession and to the moral code needed to achieve their professional goals. Instead, they are like athletes playing games, or (as Chait says) like children taking tests.
  • Using "cheating" as an ethical lens tends to both trivialize and infantilize teacher's work
  • Professions with social respect and social capital, like doctors and lawyers, collaborate in the creation of their own standards. The assumption is that those standards are intrinsic to the profession's goals, and that, therefore, professionals themselves are best equipped to establish and monitor them. Teachers' standards, though, are imposed from outside -- as if teachers are children, or as if teaching is a game.
  • High-stakes testing, then, does leads to cheating. It does not create unethical behavior -- but it does create the particular unethical behavior of "cheating."
  • We have reached a point where we can only talk about the ethics of the profession in terms of cheating or not cheating, as if teachers' main ethical duty is to make sure that scantron bubbles get filled in correctly. Teachers, like journalists, should have a commitment to truth; like doctors, they have a duty of care. Translating those commitments and duties into a bureaucratized measure of cheating-or-not-cheating diminishes ethic
  • For teachers it is, literally, demoralizing. It severs the moral experience of teaching from the moral evaluation of teaching, which makes it almost impossible for good teachers (in all the senses of "good") to stay in the system.
  • We need better ethics for teachers -- ethics that treat them as adults and professionals, not like children playing games.
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What Cookies and Meth Have in Common - The New York Times - 0 views

  • Why would anyone continue to use recreational drugs despite the medical consequences and social condemnation? What makes someone eat more and more in the face of poor health?
  • modern humans have designed the perfect environment to create both of these addictions.
  • the myth has persisted that addiction is either a moral failure or a hard-wired behavior — that addicts are either completely in command or literally out of their minds
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  • Now we have a body of research that makes the connection between stress and addiction definitive. More surprising, it shows that we can change the path to addiction by changing our environment.
  • Neuroscientists have found that food and recreational drugs have a common target in the “reward circuit” of the brain, and that the brains of humans and other animals who are stressed undergo biological changes that can make them more susceptible to addiction.
  • In a 2010 study, Diana Martinez and colleagues at Columbia scanned the brains of a group of healthy controls and found that lower social status and a lower degree of perceived social support — both presumed to be proxies for stress — were correlated with fewer dopamine receptors, called D2s, in the brain’s reward circuit
  • The reward circuit evolved to help us survive by driving us to locate food or sex in our environment
  • Today, the more D2 receptors you have, the higher your natural level of stimulation and pleasure — and the less likely you are to seek out recreational drugs or comfort food to compensate
  • people addicted to cocaine, heroin, alcohol and methamphetamines experience a significant reduction in their D2 receptor levels that persists long after drug use has stopped. These people are far less sensitive to rewards, are less motivated and may find the world dull, once again making them prone to seek a chemical means to enhance their everyday life.
  • Drug exposure also contributes to a loss of self-control. Dr. Volkow found that low D2 was linked with lower activity in the prefrontal cortex, which would impair one’s ability to think critically and exercise restraint
  • Food, like drugs, stimulates the brain’s reward circuit. Chronic exposure to high-fat and sugary foods is similarly linked with lower D2 levels, and people with lower D2 levels are also more likely to crave such foods. It’s a vicious cycle in which more exposure begets more craving.
  • At this point you may be wondering: What controls the reward circuit in the first place? Some of it is genetic. We know that certain gene variations elevate the risk of addiction to various drugs. But studies of monkeys suggest that our environment can trump genetics and rewire the brain.
  • simply by changing the environment, you can increase or decrease the likelihood of an animal becoming a drug addict.
  • The same appears true for humans. Even people who are not hard-wired for addiction can be made dependent on drugs if they are stressed
  • Is it any wonder, then, that the economically frightening situation that so many Americans experience could make them into addicts? You will literally have a different brain depending on your ZIP code, social circumstances and stress level.
  • In 1990, no state in our country had an adult obesity rate above 15 percent; by 2015, 44 states had obesity rates of 25 percent or higher. What changed?
  • What happened is that cheap, calorie-dense foods that are highly rewarding to your brain are now ubiquitous.
  • Nothing in our evolution has prepared us for the double whammy of caloric modern food and potent recreational drugs. Their power to activate our reward circuit, rewire our brain and nudge us in the direction of compulsive consumption is unprecedented.
  • The processed food industry has transformed our food into a quasi-drug, while the drug industry has synthesized ever more powerful drugs that have been diverted for recreational use.
  • Fortunately, our brains are remarkably plastic and sensitive to experience. Although it’s far easier said than done, just limiting exposure to high-calorie foods and recreational drugs would naturally reset our brains to find pleasure in healthier foods and life without drugs.
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ROUGH TYPE | Nicholas Carr's blog - 0 views

  • The smartphone has become a repository of the self, recording and dispensing the words, sounds and images that define what we think, what we experience and who we are. In a 2015 Gallup survey, more than half of iPhone owners said that they couldn’t imagine life without the device.
  • So what happens to our minds when we allow a single tool such dominion over our perception and cognition?
  • Not only do our phones shape our thoughts in deep and complicated ways, but the effects persist even when we aren’t using the devices. As the brain grows dependent on the technology, the research suggests, the intellect weakens.
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  • he has seen mounting evidence that using a smartphone, or even hearing one ring or vibrate, produces a welter of distractions that makes it harder to concentrate on a difficult problem or job. The division of attention impedes reasoning and performance.
  • Another 2015 study, appearing in the Journal of Computer-Mediated Communication, showed that when people hear their phone ring but are unable to answer it, their blood pressure spikes, their pulse quickens, and their problem-solving skills decline.
  • The researchers recruited 520 undergraduates at UCSD and gave them two standard tests of intellectual acuity. One test gauged “available working-memory capacity,” a measure of how fully a person’s mind can focus on a particular task. The second assessed “fluid intelligence,” a person’s ability to interpret and solve an unfamiliar problem. The only variable in the experiment was the location of the subjects’ smartphones. Some of the students were asked to place their phones in front of them on their desks; others were told to stow their phones in their pockets or handbags; still others were required to leave their phones in a different room.
  • In both tests, the subjects whose phones were in view posted the worst scores, while those who left their phones in a different room did the best. The students who kept their phones in their pockets or bags came out in the middle. As the phone’s proximity increased, brainpower decreased.
  • In subsequent interviews, nearly all the participants said that their phones hadn’t been a distraction—that they hadn’t even thought about the devices during the experiment. They remained oblivious even as the phones disrupted their focus and thinking.
  • In a 2013 study conducted at the University of Essex in England, 142 participants were divided into pairs and asked to converse in private for ten minutes. Half talked with a phone in the room, half without a phone present. The subjects were then given tests of affinity, trust and empathy. “The mere presence of mobile phones,” the researchers reported in the Journal of Social and Personal Relationships, “inhibited the development of interpersonal closeness and trust” and diminished “the extent to which individuals felt empathy and understanding from their partners.”
  • the “integration of smartphones into daily life” appears to cause a “brain drain” that can diminish such vital mental skills as “learning, logical reasoning, abstract thought, problem solving, and creativity.”
  •  Smartphones have become so entangled with our existence that, even when we’re not peering or pawing at them, they tug at our attention, diverting precious cognitive resources. Just suppressing the desire to check our phone, which we do routinely and subconsciously throughout the day, can debilitate our thinking.
  • They found that students who didn’t bring their phones to the classroom scored a full letter-grade higher on a test of the material presented than those who brought their phones. It didn’t matter whether the students who had their phones used them or not: All of them scored equally poorly.
  • A study of nearly a hundred secondary schools in the U.K., published last year in the journal Labour Economics, found that when schools ban smartphones, students’ examination scores go up substantially, with the weakest students benefiting the most.
  • Social skills and relationships seem to suffer as well.
  • Because smartphones serve as constant reminders of all the friends we could be chatting with electronically, they pull at our minds when we’re talking with people in person, leaving our conversations shallower and less satisfying.
  • A second experiment conducted by the researchers produced similar results, while also revealing that the more heavily students relied on their phones in their everyday lives, the greater the cognitive penalty they suffered.
  • The evidence that our phones can get inside our heads so forcefully is unsettling. It suggests that our thoughts and feelings, far from being sequestered in our skulls, can be skewed by external forces we’re not even aware o
  •  Scientists have long known that the brain is a monitoring system as well as a thinking system. Its attention is drawn toward any object that is new, intriguing or otherwise striking — that has, in the psychological jargon, “salience.”
  • even in the history of captivating media, the smartphone stands out. It is an attention magnet unlike any our minds have had to grapple with before. Because the phone is packed with so many forms of information and so many useful and entertaining functions, it acts as what Dr. Ward calls a “supernormal stimulus,” one that can “hijack” attention whenever it is part of our surroundings — and it is always part of our surroundings.
  • Imagine combining a mailbox, a newspaper, a TV, a radio, a photo album, a public library and a boisterous party attended by everyone you know, and then compressing them all into a single, small, radiant object. That is what a smartphone represents to us. No wonder we can’t take our minds off it.
  • The irony of the smartphone is that the qualities that make it so appealing to us — its constant connection to the net, its multiplicity of apps, its responsiveness, its portability — are the very ones that give it such sway over our minds.
  • Phone makers like Apple and Samsung and app writers like Facebook, Google and Snap design their products to consume as much of our attention as possible during every one of our waking hours
  • Social media apps were designed to exploit “a vulnerability in human psychology,” former Facebook president Sean Parker said in a recent interview. “[We] understood this consciously. And we did it anyway.”
  • A quarter-century ago, when we first started going online, we took it on faith that the web would make us smarter: More information would breed sharper thinking. We now know it’s not that simple.
  • As strange as it might seem, people’s knowledge and understanding may actually dwindle as gadgets grant them easier access to online data stores
  • In a seminal 2011 study published in Science, a team of researchers — led by the Columbia University psychologist Betsy Sparrow and including the late Harvard memory expert Daniel Wegner — had a group of volunteers read forty brief, factual statements (such as “The space shuttle Columbia disintegrated during re-entry over Texas in Feb. 2003”) and then type the statements into a computer. Half the people were told that the machine would save what they typed; half were told that the statements would be erased.
  • Afterward, the researchers asked the subjects to write down as many of the statements as they could remember. Those who believed that the facts had been recorded in the computer demonstrated much weaker recall than those who assumed the facts wouldn’t be stored. Anticipating that information would be readily available in digital form seemed to reduce the mental effort that people made to remember it
  • The researchers dubbed this phenomenon the “Google effect” and noted its broad implications: “Because search engines are continually available to us, we may often be in a state of not feeling we need to encode the information internally. When we need it, we will look it up.”
  • as the pioneering psychologist and philosopher William James said in an 1892 lecture, “the art of remembering is the art of thinking.”
  • Only by encoding information in our biological memory can we weave the rich intellectual associations that form the essence of personal knowledge and give rise to critical and conceptual thinking. No matter how much information swirls around us, the less well-stocked our memory, the less we have to think with.
  • As Dr. Wegner and Dr. Ward explained in a 2013 Scientific American article, when people call up information through their devices, they often end up suffering from delusions of intelligence. They feel as though “their own mental capacities” had generated the information, not their devices. “The advent of the ‘information age’ seems to have created a generation of people who feel they know more than ever before,” the scholars concluded, even though “they may know ever less about the world around them.”
  • That insight sheds light on society’s current gullibility crisis, in which people are all too quick to credit lies and half-truths spread through social media. If your phone has sapped your powers of discernment, you’ll believe anything it tells you.
  • Data, the novelist and critic Cynthia Ozick once wrote, is “memory without history.” Her observation points to the problem with allowing smartphones to commandeer our brains
  • When we constrict our capacity for reasoning and recall or transfer those skills to a gadget, we sacrifice our ability to turn information into knowledge. We get the data but lose the meaning
  • We need to give our minds more room to think. And that means putting some distance between ourselves and our phones.
  • Harvard Business School professor emerita Shoshana Zuboff argues in her new book that the Valley’s wealth and power are predicated on an insidious, essentially pathological form of private enterprise—what she calls “surveillance capitalism.” Pioneered by Google, perfected by Facebook, and now spreading throughout the economy, surveillance capitalism uses human life as its raw material. Our everyday experiences, distilled into data, have become a privately-owned business asset used to predict and mold our behavior, whether we’re shopping or socializing, working or voting.
  • By reengineering the economy and society to their own benefit, Google and Facebook are perverting capitalism in a way that undermines personal freedom and corrodes democracy.
  • Under the Fordist model of mass production and consumption that prevailed for much of the twentieth century, industrial capitalism achieved a relatively benign balance among the contending interests of business owners, workers, and consumers. Enlightened executives understood that good pay and decent working conditions would ensure a prosperous middle class eager to buy the goods and services their companies produced. It was the product itself — made by workers, sold by companies, bought by consumers — that tied the interests of capitalism’s participants together. Economic and social equilibrium was negotiated through the product.
  • By removing the tangible product from the center of commerce, surveillance capitalism upsets the equilibrium. Whenever we use free apps and online services, it’s often said, we become the products, our attention harvested and sold to advertisers
  • this truism gets it wrong. Surveillance capitalism’s real products, vaporous but immensely valuable, are predictions about our future behavior — what we’ll look at, where we’ll go, what we’ll buy, what opinions we’ll hold — that internet companies derive from our personal data and sell to businesses, political operatives, and other bidders.
  • Unlike financial derivatives, which they in some ways resemble, these new data derivatives draw their value, parasite-like, from human experience.To the Googles and Facebooks of the world, we are neither the customer nor the product. We are the source of what Silicon Valley technologists call “data exhaust” — the informational byproducts of online activity that become the inputs to prediction algorithms
  • internet companies operate in what Zuboff terms “extreme structural independence from people.” When databases displace goods as the engine of the economy, our own interests, as consumers but also as citizens, cease to be part of the negotiation. We are no longer one of the forces guiding the market’s invisible hand. We are the objects of surveillance and control.
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Data Firm Tied to Trump Campaign Talked Business With Russians - The New York Times - 0 views

  • When the Russia question came up during a hearing at the British Parliament last month, Alexander Nix did not hesitate.“We’ve never worked in Russia,” said Mr. Nix, head of a data consulting firm that advised the Trump campaign on targeting voters.
  • “As far as I’m aware, we’ve never worked for a Russian company,” Mr. Nix added. “We’ve never worked with a Russian organization in Russia or any other country, and we don’t have any relationship with Russia or Russian individuals.”
  • But Mr. Nix’s business did have some dealings with Russian interests, according to company documents and interviews.
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  • . The firms’ employees, who often overlap, had contact in 2014 and 2015 with executives from Lukoil, the Russian oil giant.
  • Lukoil was interested in how data was used to target American voters, according to two former company insiders who said there were at least three meetings with Lukoil executives in London and Turkey.
  • Cambridge Analytica also included extensive questions about Russia’s president, Vladimir V. Putin, in surveys it was carrying out in American focus groups in 2014. It is not clear what — or which client — prompted the line of questioning, which asked for views on topics ranging from Mr. Putin’s popularity to Russian expansionism.
  • On two promotional documents obtained by The New York Times, SCL said it did business in Russia. In both documents, the country is highlighted on world maps that specify the location of SCL clients, with one of the maps noting that the clients were for the firm’s elections division. In a statement, SCL said an employee had done “commercial work” about 25 years ago “for a private company in Russia.”
  • Asked about the Russian oil company, a spokesman for SCL said that in 2014 the firm’s commercial division “discussed helping Lukoil Turkey better engage with its loyalty-card customers at gas stations.” The spokesman said SCL was not ultimately hired.
  • But Christopher Wylie, who helped found Cambridge Analytica and develop the company’s voter-profiling technology, said Lukoil showed interest in how the company used data to tailor messaging to American voters.
  • “I remember being super confused,” said Mr. Wylie, who took part in one of the Lukoil meetings.“I kept asking Alexander, ‘Can you explain to me what they want?’” he said, referring to Mr. Nix. “I don’t understand why Lukoil wants to know about political targeting in America.”
  • “We’re sending them stuff about political targeting — they then come and ask more about political targeting,” Mr. Wylie said, adding that Lukoil “just didn’t seem to be interested” in how the techniques could be used commercially.
  • A second person familiar with the discussions backed up Mr. Wylie’s account, but spoke on the condition of anonymity because of a confidentiality agreement.
  • Though Lukoil is not state-owned, it depends on Kremlin support, and its chief executive, Vagit Alekperov, has met with Mr. Putin on a number of occasions. Reuters reported last year that Lukoil and other companies received instructions from the state energy ministry on providing news stories favorable to Russian leadership.
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Paying attention as the eyes move -- ScienceDaily - 0 views

  • The visual system optimally maintains attention on relevant objects even as eye movements are made, shows a study by the German Primate Center.
  • Their study shows that the rhesus macaque's brain quickly and efficiently shifts attention with each eye-movement in a well-synchronized manner. Since humans and monkeys exhibit very similar eye-movements and visual function, these findings are likely to generalize to the human brain. These results may help understand disorders like schizophrenia, visual neglect and other attention deficit disorders.
  • Since different locations on the retina stimulate different visual neurons in the brain, this means that one set of visual neurons responds to the child before the eye-movement, while a different second set of neurons responds to the child after the eye-movement. Thus, to optimally maintain attention on the child, the brain has to enhance the responses of the first set of neurons right until the eye-movement begins and then switch to enhance the responses of the second set of neurons right around when the eye-movement ends.
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  • To measure the activity of single neurons, the scientists inserted electrodes thinner than a human hair into the monkey's brain and recorded the neurons' electrical activity. Because the brain is not pain-sensitive, this insertion of electrodes is painless for the animal. By recording from single neurons in an area of the monkey's brain known as area MT, the scientists were able to show that attentional enhancement indeed switches from the first set of neurons to the second set of neurons in a fast and saccade-synchronized manner. Attentional enhancement in the brain is therefore well-timed to maintain spatial attention on relevant stimuli, so that they can be optimally tracked and processed across saccades.
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WhatsApp urges users to update app after discovering spyware vulnerability | Technology... - 0 views

  • WhatsApp is encouraging users to update to the latest version of the app after discovering a vulnerability that allowed spyware to be injected into a user’s phone through the app’s phone call function.
  • The spyware was developed by the Israeli cyber intelligence company NSO Group, according to the Financial Times,
  • Attackers could transmit the malicious code to a target’s device by calling the user and infecting the call whether or not the recipient answered the call.
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  • The spyware’s capabilities are near absolute. Once installed on a phone, the software can extract all of the data that’s already on the device (text messages, contacts, GPS location, email, browser history, etc) in addition to creating new data by using the phone’s microphone and camera to record the user’s surroundings and ambient sounds, according to a 2016 report by the New York Times.
  • NSO limits sales of its spyware, Pegasus, to state intelligence agencies
  • þffWhatsApp has about 1.5bn users around the world. The messaging app uses end-to-end encryption, making it popular and secure for activists and dissidents. The Pegasus spyware does not affect or involve the app’s encryption.
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I Downloaded the Information That Facebook Has on Me. Yikes. - The New York Times - 0 views

  • When I downloaded a copy of my Facebook data last week, I didn’t expect to see much. My profile is sparse, I rarely post anything on the site, and I seldom click on ads
  • With a few clicks, I learned that about 500 advertisers — many that I had never heard of, like Bad Dad, a motorcycle parts store, and Space Jesus, an electronica band — had my contact information
  • Facebook also had my entire phone book, including the number to ring my apartment buzzer. The social network had even kept a permanent record of the roughly 100 people I had deleted from my friends list over the last 14 years, including my exes.
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  • During his testimony, Mr. Zuckerberg repeatedly said Facebook has a tool for downloading your data that “allows people to see and take out all the information they’ve put into Facebook.”
  • Most basic information, like my birthday, could not be deleted. More important, the pieces of data that I found objectionable, like the record of people I had unfriended, could not be removed from Facebook, either.
  • “They don’t delete anything, and that’s a general policy,” said Gabriel Weinberg, the founder of DuckDuckGo, which offers internet privacy tools. He added that data was kept around to eventually help brands serve targeted ads.
  • When you download a copy of your Facebook data, you will see a folder containing multiple subfolders and files. The most important one is the “index” file, which is essentially a raw data set of your Facebook account, where you can click through your profile, friends list, timeline and messages, among other features.
  • Upon closer inspection, it turned out that Facebook had stored my entire phone book because I had uploaded it when setting up Facebook’s messaging app, Messenger.
  • Facebook also kept a history of each time I opened Facebook over the last two years, including which device and web browser I used. On some days, it even logged my locations, like when I was at a hospital two years ago or when I visited Tokyo last year.
  • what bothered me was the data that I had explicitly deleted but that lingered in plain sight. On my friends list, Facebook had a record of “Removed Friends,” a dossier of the 112 people I had removed along with the date I clicked the “Unfriend” button. Why should Facebook remember the people I’ve cut off from my life?
  • Facebook said unfamiliar advertisers might appear on the list because they might have obtained my contact information from elsewhere, compiled it into a list of people they wanted to target and uploaded that list into Facebook
  • Brands can obtain your information in many different ways. Those include:
  • ■ Buying information from a data provider like Acxiom, which has amassed one of the world’s largest commercial databases on consumers. Brands can buy different types of customer data sets from a provider, like contact information for people who belong to a certain demographic, and take that information to Facebook to serve targeted ads
  • ■ Using tracking technologies like web cookies and invisible pixels that load in your web browser to collect information about your browsing activities. There are many different trackers on the web, and Facebook offers 10 different trackers to help brands harvest your information, according to Ghostery, which offers privacy tools that block ads and trackers.
  • ■ Getting your information in simpler ways, too. Someone you shared information with could share it with another entity. Your credit card loyalty program, for example
  • I also downloaded copies of my Google data with a tool called Google Takeout. The data sets were exponentially larger than my Facebook data.
  • For my personal email account alone, Google’s archive of my data measured eight gigabytes, enough to hold about 2,000 hours of music. By comparison, my Facebook data was about 650 megabytes, the equivalent of about 160 hours of music.
  • In a folder labeled Ads, Google kept a history of many news articles I had read, like a Newsweek story about Apple employees walking into glass walls and a New York Times story about the editor of our Modern Love column. I didn’t click on ads for either of these stories, but the search giant logged them because the sites had loaded ads served by Google.
  • In another folder, labeled Android, Google had a record of apps I had opened on an Android phone since 2015, along with the date and time. This felt like an extraordinary level of detail.
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Philosophy isn't dead yet | Raymond Tallis | Comment is free | The Guardian - 1 views

  • Fundamental physics is in a metaphysical mess and needs help. The attempt to reconcile its two big theories, general relativity and quantum mechanics, has stalled for nearly 40 years. Endeavours to unite them, such as string theory, are mathematically ingenious but incomprehensible even to many who work with them. This is well known.
  • A better-kept secret is that at the heart of quantum mechanics is a disturbing paradox – the so-called measurement problem, arising ultimately out of the Uncertainty Principle – which apparently demonstrates that the very measurements that have established and confirmed quantum theory should be impossible. Oxford philosopher of physics David Wallace has argued that this threatens to make quantum mechanics incoherent which can be remedied only by vastly multiplying worlds.
  • there is the failure of physics to accommodate conscious beings. The attempt to fit consciousness into the material world, usually by identifying it with activity in the brain, has failed dismally, if only because there is no way of accounting for the fact that certain nerve impulses are supposed to be conscious (of themselves or of the world) while the overwhelming majority (physically essentially the same) are not. In short, physics does not allow for the strange fact that matter reveals itself to material objects (such as physicists).
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  • then there is the mishandling of time. The physicist Lee Smolin's recent book, Time Reborn, links the crisis in physics with its failure to acknowledge the fundamental reality of time. Physics is predisposed to lose time because its mathematical gaze freezes change. Tensed time, the difference between a remembered or regretted past and an anticipated or feared future, is particularly elusive. This worried Einstein: in a famous conversation, he mourned the fact that the present tense, "now", lay "just outside of the realm of science".
  • Recent attempts to explain how the universe came out of nothing, which rely on questionable notions such as spontaneous fluctuations in a quantum vacuum, the notion of gravity as negative energy, and the inexplicable free gift of the laws of nature waiting in the wings for the moment of creation, reveal conceptual confusion beneath mathematical sophistication. They demonstrate the urgent need for a radical re-examination of the invisible frameworks within which scientific investigations are conducted.
  • we should reflect on how a scientific image of the world that relies on up to 10 dimensions of space and rests on ideas, such as fundamental particles, that have neither identity nor location, connects with our everyday experience. This should open up larger questions, such as the extent to which mathematical portraits capture the reality of our world – and what we mean by "reality".
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While You Were Sleeping - The New York Times - 0 views

  • look at where we are today thanks to artificial intelligence from digital computers — and the amount of middle-skill and even high-skill work they’re supplanting — and then factor in how all of this could be supercharged in a decade by quantum computing.
  • In December 2016, Amazon announced plans for the Amazon Go automated grocery store, in which a combination of computer vision and deep-learning technologies track items and only charges customers when they remove the items from the store. In February 2017, Bank of America began testing three ‘employee-less’ branch locations that offer full-service banking automatically, with access to a human, when necessary, via video teleconference.”
  • This will be a challenge for developed countries, but even more so for countries like Egypt, Pakistan, Iran, Syria, Saudi Arabia, China and India — where huge numbers of youths are already unemployed because they lack the education for even this middle-skill work THAT’S now being automated.
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  • Some jobs will be displaced, but 100 percent of jobs will be augmented by A.I.,” added Rometty. Technology companies “are inventing these technologies, so we have the responsibility to help people adapt to it — and I don’t mean just giving them tablets or P.C.s, but lifelong learning systems.”
  • Each time work gets outsourced or tasks get handed off to a machine, “we must reach up and learn a new skill or in some ways expand our capabilities as humans in order to fully realize our collaborative potential,” McGowan said.
  • Therefore, education needs to shift “from education as a content transfer to learning as a continuous process where the focused outcome is the ability to learn and adapt with agency as opposed to the transactional action of acquiring a set skill,
  • “Instructors/teachers move from guiding and accessing that transfer process to providing social and emotional support to the individual as they move into the role of driving their own continuous learning.”
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Researchers identify gene that helps prevent brain disease: Protein 'proofreading' erro... - 0 views

  • Researchers identify gene that helps prevent brain disease: Protein 'proofreading' errors lead to neurodegenerative disease
  • Without normal levels of Ankrd16, these nerve cells, located in the cerebellum, incorrectly activate the amino acid serine, which is then improperly incorporated into proteins and causes protein aggregation.
  • Elevating the level of Ankrd16 protects these cells from dying, while removing Ankrd16 from other neurons in mice with a proofreading deficiency caused widespread buildup of abnormal proteins and ultimately neuronal death.
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  • The researchers note that only a few modifier genes of disease mutations such as Ankrd16 have been identified and a modifier-based mechanism for understanding the underlying pathology of neurodegenerative diseases may be a promising route to understand disease development.
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Counting Calories to Stay Fit? There's a Trillion Little Problems With That. - Mother J... - 0 views

  • The scientists during Atwater’s era saw the human digestive system as a single engine producing a predictable quantity of energy from a given amount of fuel.
  • Yet the human gut contains a multitude of engines, and they interact with each other in ways science is just beginning to unravel. Over the past 15 years, a fast-growing body of literature suggests that the gut microbiome—the trillions of microbes that live inside us—shapes the way we metabolize food and may play an important role in how we gain weight.
  • Antibiotics, it turns out, reconfigure your gut’s balance in favor of microbes that help us store food as body fat.
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  • As a result, our microbiomes are better at helping us store fat than those of our ancestors.
  • Antibiotics aren’t the only force shifting our internal ecology. Modern diets are full of processed foods and low in fiber, the kind of hard-to-break-down carbohydrates found especially in vegetables, legumes, and whole grains that are crucial for a healthy microbiome.
  • The vast majority of our internal microbes live in the far reaches of our digestive tract, the colon, explains Justin Sonnenburg, an associate professor of microbiology and immunology at Stanford. Because of their location, these microscopic critters “really only get access to the dregs of what we eat”—the dietary fiber that our organs can’t digest. The microbes have evolved to process that fiber by fermenting it with enzymes.
  • feeding this fermentation process appears to be crucial for averting weight gain and diseases like obesity and Type 2 diabetes
  • fiber supplements might also trigger liver cancer.
  • “Right now, the only useful advice I could give somebody would be to eat foods naturally rich in fiber,” he says, like bran cereal and every kind of bean you can think of. Other winners included pears, avocados, apples, seeds, and nuts.
  • The Institute of Medicine recommends that women eat 25 grams and men 38 grams of fiber every day, but Americans only get about 15 grams on average.
  • The choice of whether to lunch on a cup of black beans or five chicken nuggets—which both contain about 220 calories—just got a whole lot easier.
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