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Javier E

In 'Misbehaving,' an Economics Professor Isn't Afraid to Attack His Own - NYTimes.com - 0 views

  • economists have increasingly become the go-to experts on every manner of business and public policy issue facing society
  • The economics profession that Mr. Thaler entered in the early 1970s was deeply invested in proving that it was more than a mere social science
  • To achieve the same mathematical precision of hard sciences, economists made a radically simplifying assumption that people are “optimizers” whose behavior is as predictable as the speed of physical body falling through space.
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  • Early in his career, Professor Thaler created a list of observed behaviors that were obviously inconsistent with the predictions of established orthodoxy.
  • “Misbehaving” charts Mr. Thaler’s journey to document these anomalies in the face of economists’ increasingly desperate, and sometimes comical, efforts to deny their existence or relevance
  • As these tools have been applied to practical problems, Professor Thaler has noted that there has been “very little actual economics involved.” Instead, the resulting insights have “come primarily from psychology and the other social sciences.”
  • To the extent that economists fought the integration of behavioral insights into economic analyses, it seems that their fears were founded. Rather than making the resulting work less rigorous, however, it simply made its economic underpinnings less relevant. Professor Thaler argues that it is actually “a slur on those other social sciences if people insist on calling any policy-related research some kind of economics.”
  • by trying to set itself as somehow above other social sciences, the “rationalist” school of economics actually ended up contributing far less than it could have. The group’s intellectual denial led to not just sloppy social science, but sloppy philosophy.
  • Economists would do well to embrace both their philosophical and social science roots. No amount of number-crunching can replace the need to confront the complexity of human existence.
  • It is not only in academics that the most difficult questions are avoided behind a mathematical smoke screen. When businesses use cost-benefit analysis, for instance, they are applying a moral philosophy known as utilitarianism, popularized by John Stuart Mill in the 19th century.
  • Mill has relatively few contemporary adherents in professional philosophical circles. But utilitarianism does have the virtue of lending itself to mathematical calculation. By giving the contentious philosophy a benign bureaucratic name like “cost-benefit analysis,” corporations hope to circumvent the need to confront the profound ethical issues implicated.
Javier E

In 'Misbehaving,' an Economics Professor Isn't Afraid to Attack His Own - NYTimes.com - 0 views

  • the book is part memoir, part attack on a breed of economist who dominated the academy – particularly, the Chicago School that dominated economic theory at the University of Chicago – for the much of the latter part of the 20th century.
  • economists have increasingly become the go-to experts on every manner of business and public policy issue facing society.
  • rather than being a disgruntled former employee or otherwise easily marginalized whistle-blower, Mr. Thaler recently took the reins as president of the American Economic Association (and still teaches at Chicago’s graduate business program
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  • The economics profession that Mr. Thaler entered in the early 1970s was deeply invested in proving that it was more than a mere social science.
  • But economic outcomes are the result of human decision-making. To achieve the same mathematical precision of hard sciences, economists made a radically simplifying assumption that people are “optimizers” whose behavior is as predictable as the speed of physical body falling through space.
  • After so-called behavioral economics began to go mainstream, Professor Thaler turned his attention to helping solve a variety of business and, increasingly, public policy issues. As these tools have been applied to practical problems, Professor Thaler has noted that there has been “very little actual economics involved.” Instead, the resulting insights have “come primarily from psychology and the other social sciences.”
  • it is actually “a slur on those other social sciences if people insist on calling any policy-related research some kind of economics.”
  • Professor Thaler’s narrative ultimately demonstrates that by trying to set itself as somehow above other social sciences, the “rationalist” school of economics actually ended up contributing far less than it could have. The group’s intellectual denial led to not just sloppy social science, but sloppy philosophy.
  • Economists would do well to embrace both their philosophical and social science roots. No amount of number-crunching can replace the need to confront the complexity of human existence.
  • It is not only in academics that the most difficult questions are avoided behind a mathematical smoke screen. When businesses use cost-benefit analysis, for instance, they are applying a moral philosophy known as utilitarianism, popularized by John Stuart Mill in the 19th century.
  • Compared against alternative moral philosophies, like those of Kant or Aristotle, Mill has relatively few contemporary adherents in professional philosophical circles. But utilitarianism does have the virtue of lending itself to mathematical calculation. By giving the contentious philosophy a benign bureaucratic name like “cost-benefit analysis,” corporations hope to circumvent the need to confront the profound ethical issues implicated.
  • The “misbehaving” of Professor Thaler’s title is supposed to refer to how human actions are inconsistent with rationalist economic theory
catbclark

Lila Abu-Lughod: Do Muslim Women Need Saving? | TIME.com - 0 views

  • But it has also reduced Muslim women to a stereotyped singularity, plastering a handy cultural icon over much more complicated historical and political dynamics.
  • they had become such symbols of oppression in the West. But we were confusing veiling with a lack of agency. What most of us didn’t know is that 30 years ago the anthropologist Hanna Papanek described the burqa as “portable seclusion” and noted that many women saw it as a liberating invention because it enabled them to move out of segregated living spaces while still observing the requirements of separating and protecting women from unrelated men. People all over the globe, including Americans, wear the appropriate form of dress for their socially shared standards, religious beliefs and moral ideals.
  • Ultimately, saving Muslim women allows us to ignore the complex entanglements in which we are all implicated and creates a polarization that places feminism only on the side of the West.
carolinewren

Scientists See How Brain Areas Communicate - 1 views

  • Carnegie Mellon Univ. neuroscientists have identified a new pathway by which several brain areas communicate within the brain's striatum.
  • the findings illustrate structural and functional connections that allow the brain to use reinforcement learning to make spatial decisions, such as the dorsolateral prefrontal (DLPFC), orbitofrontal cortex (OFC) and posterior parietal cortex (PPC).
  • Knowing how these specific pathways work together provides crucial insight into how learning occurs
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  • The hope is that more knowledge of how the connectivity is related to behavior will help scientists develop therapeutic interventions that focus on strengthening potentially weakened or damaged pathways.
  • They found that the pathways from all three areas projected to similar areas within a forebrain region called striatum, a part of the basal ganglia pathways that are most commonly associated with Parkinson's disease. The patterns were consistent across all participants
  • The results showed that the convergence zones were not only structurally connected but functionally connected as well. More importantly, the areas at the surface of the brain in all three cortical areas showed a high overlap of structure and functional connectivity
  • there may be a structural and functional network in the brain that allows us to integrate information about where we are focusing our attention in our visuospatial environment with reward and punishment signals associated with our past action choices in order to learn how to update and, hopefully improve, our future action decisions,
  • An additional implication for this study is a deeper understanding of how reinforcement learning occurs.
Javier E

Technology's Toll - Impatience and Forgetfulness - NYTimes.com - 0 views

  • Some experts believe excessive use of the Internet, cellphones and other technologies can cause us to become more impatient, impulsive, forgetful and even more narcissistic
  • It may be that the immediacy of the Internet, the efficiency of the iPhone and the anonymity of the chat room change the core of who we are, is
  • Dr. Aboujaoude also asks whether the vast storage available in e-mail and on the Internet is preventing many of us from letting go, causing us to retain many old and unnecessary memories at the expense of making new ones.
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  • “The deeper a technology is woven into the patterns of everyday life, the less choice we have about whether and how we use that technology,”
  • experts suggest simply trying to curtail the amount of time you spend online. Set limits for how often you check e-mail
  • giving up technology cold turkey not only makes life logistically difficult, but also changes our ability to connect with others. “Texting and I.M.’ing my friends gives me a constant feeling of comfort,” wrote one student. “When I did not have those two luxuries, I felt quite alone and secluded from my life. Although I go to a school with thousands of students, the fact that I was not able to communicate with anyone via technology was almost unbearable.”
Ellie McGinnis

The 50 Greatest Breakthroughs Since the Wheel - James Fallows - The Atlantic - 0 views

  • Some questions you ask because you want the right answer. Others are valuable because no answer is right; the payoff comes from the range of attempts.
  • That is the diversity of views about the types of historical breakthroughs that matter, with a striking consensus on whether the long trail of innovation recorded here is now nearing its end.
  • The clearest example of consensus was the first item on the final compilation, the printing press
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  • Leslie Berlin, a historian of business at Stanford, organized her nominations not as an overall list but grouped into functional categories.
  • Innovations that expand the human intellect and its creative, expressive, and even moral possibilities.
  • Innovations that are integral to the physical and operating infrastructure of the modern world
  • Innovations that enabled the Industrial Revolution and its successive waves of expanded material output
  • Innovations extending life, to use Leslie Berlin’s term
  • Innovations that allowed real-time communication beyond the range of a single human voice
  • Innovations in the physical movement of people and goods.
  • Organizational breakthroughs that provide the software for people working and living together in increasingly efficient and modern ways
  • Finally, and less prominently than we might have found in 1950 or 1920—and less prominently than I initially expected—we have innovations in killing,
  • Any collection of 50 breakthroughs must exclude 50,000 more.
  • We learn, finally, why technology breeds optimism, which may be the most significant part of this exercise.
  • Popular culture often lionizes the stars of discovery and invention
  • For our era, the major problems that technology has helped cause, and that faster innovation may or may not correct, are environmental, demographic, and socioeconomic.
  • people who have thought deeply about innovation’s sources and effects, like our panelists, were aware of the harm it has done along with the good.
  • “Does innovation raise the wealth of the planet? I believe it does,” John Doerr, who has helped launch Google, Amazon, and other giants of today’s technology, said. “But technology left to its own devices widens rather than narrows the gap between the rich and the poor.”
  • Are today’s statesmen an improvement over those of our grandparents’ era? Today’s level of public debate? Music, architecture, literature, the fine arts—these and other manifestations of world culture continually change, without necessarily improving. Tolstoy and Dostoyevsky, versus whoever is the best-selling author in Moscow right now?
  • The argument that a slowdown might happen, and that it would be harmful if it did, takes three main forms.
  • Some societies have closed themselves off and stopped inventing altogether:
  • By failing to move forward, they inevitably moved backward relative to their rivals and to the environmental and economic threats they faced. If the social and intellectual climate for innovation sours, what has happened before can happen again.
  • visible slowdown in the pace of solutions that technology offers to fundamental problems.
  • a slowdown in, say, crop yields or travel time is part of a general pattern of what economists call diminishing marginal returns. The easy improvements are, quite naturally, the first to be made; whatever comes later is slower and harder.
  • America’s history as a nation happens to coincide with a rare moment in technological history now nearing its end. “There was virtually no economic growth before 1750,” he writes in a recent paper.
  • “We can be concerned about the last 1 percent of an environment for innovation, but that is because we take everything else for granted,” Leslie Berlin told me.
  • This reduction in cost, he says, means that the next decade should be a time of “amazing advances in understanding the genetic basis of disease, with especially powerful implications for cancer.”
  • the very concept of an end to innovation defied everything they understood about human inquiry. “If you look just at the 20th century, the odds against there being any improvement in living standards are enormous,”
  • “Two catastrophic world wars, the Cold War, the Depression, the rise of totalitarianism—it’s been one disaster after another, a sequence that could have been enough to sink us back into barbarism. And yet this past half century has been the fastest-ever time of technological growth. I see no reason why that should be slowing down.”
  • “I am a technological evolutionist,” he said. “I view the universe as a phase-space of things that are possible, and we’re doing a random walk among them. Eventually we are going to fill the space of everything that is possible.”
Emily Freilich

All Can Be Lost: The Risk of Putting Our Knowledge in the Hands of Machines - Nicholas Carr - The Atlantic - 0 views

  • We rely on computers to fly our planes, find our cancers, design our buildings, audit our businesses. That's all well and good. But what happens when the computer fails?
  • On the evening of February 12, 2009, a Continental Connection commuter flight made its way through blustery weather between Newark, New Jersey, and Buffalo, New York.
  • The Q400 was well into its approach to the Buffalo airport, its landing gear down, its wing flaps out, when the pilot’s control yoke began to shudder noisily, a signal that the plane was losing lift and risked going into an aerodynamic stall. The autopilot disconnected, and the captain took over the controls. He reacted quickly, but he did precisely the wrong thing: he jerked back on the yoke, lifting the plane’s nose and reducing its airspeed, instead of pushing the yoke forward to gain velocity.
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  • The crash, which killed all 49 people on board as well as one person on the ground, should never have happened.
  • aptain’s response to the stall warning, the investigators reported, “should have been automatic, but his improper flight control inputs were inconsistent with his training” and instead revealed “startle and confusion.
  • Automation has become so sophisticated that on a typical passenger flight, a human pilot holds the controls for a grand total of just three minutes.
  • We humans have been handing off chores, both physical and mental, to tools since the invention of the lever, the wheel, and the counting bead.
  • And that, many aviation and automation experts have concluded, is a problem. Overuse of automation erodes pilots’ expertise and dulls their reflexes,
  • No one doubts that autopilot has contributed to improvements in flight safety over the years. It reduces pilot fatigue and provides advance warnings of problems, and it can keep a plane airborne should the crew become disabled. But the steady overall decline in plane crashes masks the recent arrival of “a spectacularly new type of accident,”
  • “We’re forgetting how to fly.”
  • The experience of airlines should give us pause. It reveals that automation, for all its benefits, can take a toll on the performance and talents of those who rely on it. The implications go well beyond safety. Because automation alters how we act, how we learn, and what we know, it has an ethical dimension. The choices we make, or fail to make, about which tasks we hand off to machines shape our lives and the place we make for ourselves in the world.
  • What pilots spend a lot of time doing is monitoring screens and keying in data. They’ve become, it’s not much of an exaggeration to say, computer operators.
  • Examples of complacency and bias have been well documented in high-risk situations—on flight decks and battlefields, in factory control rooms—but recent studies suggest that the problems can bedevil anyone working with a computer
  • That may leave the person operating the computer to play the role of a high-tech clerk—entering data, monitoring outputs, and watching for failures. Rather than opening new frontiers of thought and action, software ends up narrowing our focus.
  • A labor-saving device doesn’t just provide a substitute for some isolated component of a job or other activity. It alters the character of the entire task, including the roles, attitudes, and skills of the people taking part.
  • when we work with computers, we often fall victim to two cognitive ailments—complacency and bias—that can undercut our performance and lead to mistakes. Automation complacency occurs when a computer lulls us into a false sense of security. Confident that the machine will work flawlessly and handle any problem that crops up, we allow our attention to drift.
  • Automation bias occurs when we place too much faith in the accuracy of the information coming through our monitors. Our trust in the software becomes so strong that we ignore or discount other information sources, including our own eyes and ears
  • Automation is different now. Computers can be programmed to perform complex activities in which a succession of tightly coordinated tasks is carried out through an evaluation of many variables. Many software programs take on intellectual work—observing and sensing, analyzing and judging, even making decisions—that until recently was considered the preserve of humans.
  • Automation turns us from actors into observers. Instead of manipulating the yoke, we watch the screen. That shift may make our lives easier, but it can also inhibit the development of expertise.
  • Since the late 1970s, psychologists have been documenting a phenomenon called the “generation effect.” It was first observed in studies of vocabulary, which revealed that people remember words much better when they actively call them to mind—when they generate them—than when they simply read them.
  • When you engage actively in a task, you set off intricate mental processes that allow you to retain more knowledge. You learn more and remember more. When you repeat the same task over a long period, your brain constructs specialized neural circuits dedicated to the activit
  • What looks like instinct is hard-won skill, skill that requires exactly the kind of struggle that modern software seeks to alleviate.
  • In many businesses, managers and other professionals have come to depend on decision-support systems to analyze information and suggest courses of action. Accountants, for example, use the systems in corporate audits. The applications speed the work, but some signs suggest that as the software becomes more capable, the accountants become less so.
  • You can put limits on the scope of automation, making sure that people working with computers perform challenging tasks rather than merely observing.
  • Experts used to assume that there were limits to the ability of programmers to automate complicated tasks, particularly those involving sensory perception, pattern recognition, and conceptual knowledge
  • Who needs humans, anyway? That question, in one rhetorical form or another, comes up frequently in discussions of automation. If computers’ abilities are expanding so quickly and if people, by comparison, seem slow, clumsy, and error-prone, why not build immaculately self-contained systems that perform flawlessly without any human oversight or intervention? Why not take the human factor out of the equation?
  • The cure for imperfect automation is total automation.
  • That idea is seductive, but no machine is infallible. Sooner or later, even the most advanced technology will break down, misfire, or, in the case of a computerized system, encounter circumstances that its designers never anticipated. As automation technologies become more complex, relying on interdependencies among algorithms, databases, sensors, and mechanical parts, the potential sources of failure multiply. They also become harder to detect.
  • conundrum of computer automation.
  • Because many system designers assume that human operators are “unreliable and inefficient,” at least when compared with a computer, they strive to give the operators as small a role as possible.
  • People end up functioning as mere monitors, passive watchers of screens. That’s a job that humans, with our notoriously wandering minds, are especially bad at
  • people have trouble maintaining their attention on a stable display of information for more than half an hour. “This means,” Bainbridge observed, “that it is humanly impossible to carry out the basic function of monitoring for unlikely abnormalities.”
  • a person’s skills “deteriorate when they are not used,” even an experienced operator will eventually begin to act like an inexperienced one if restricted to just watching.
  • You can program software to shift control back to human operators at frequent but irregular intervals; knowing that they may need to take command at any moment keeps people engaged, promoting situational awareness and learning.
  • What’s most astonishing, and unsettling, about computer automation is that it’s still in its early stages.
  • most software applications don’t foster learning and engagement. In fact, they have the opposite effect. That’s because taking the steps necessary to promote the development and maintenance of expertise almost always entails a sacrifice of speed and productivity.
  • Learning requires inefficiency. Businesses, which seek to maximize productivity and profit, would rarely accept such a trade-off. Individuals, too, almost always seek efficiency and convenience.
  • Abstract concerns about the fate of human talent can’t compete with the allure of saving time and money.
  • The small island of Igloolik, off the coast of the Melville Peninsula in the Nunavut territory of northern Canada, is a bewildering place in the winter.
  • , Inuit hunters have for some 4,000 years ventured out from their homes on the island and traveled across miles of ice and tundra to search for game. The hunters’ ability to navigate vast stretches of the barren Arctic terrain, where landmarks are few, snow formations are in constant flux, and trails disappear overnight, has amazed explorers and scientists for centuries. The Inuit’s extraordinary way-finding skills are born not of technological prowess—they long eschewed maps and compasses—but of a profound understanding of winds, snowdrift patterns, animal behavior, stars, and tides.
  • The Igloolik hunters have begun to rely on computer-generated maps to get around. Adoption of GPS technology has been particularly strong among younger Inuit, and it’s not hard to understand why.
  • But as GPS devices have proliferated on Igloolik, reports of serious accidents during hunts have spread. A hunter who hasn’t developed way-finding skills can easily become lost, particularly if his GPS receiver fails.
  • The routes so meticulously plotted on satellite maps can also give hunters tunnel vision, leading them onto thin ice or into other hazards a skilled navigator would avoid.
  • An Inuit on a GPS-equipped snowmobile is not so different from a suburban commuter in a GPS-equipped SUV: as he devotes his attention to the instructions coming from the computer, he loses sight of his surroundings. He travels “blindfolded,” as Aporta puts it
  • A unique talent that has distinguished a people for centuries may evaporate in a generation.
  • Computer automation severs the ends from the means. It makes getting what we want easier, but it distances us from the work of knowing. As we transform ourselves into creatures of the screen, we face an existential question: Does our essence still lie in what we know, or are we now content to be defined by what we want?
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    Automation increases efficiency and speed of tasks, but decreases the individual's knowledge of a task and decrease's a human's ability to learn. 
Javier E

NASA finds new life form - 0 views

  • NASA has found a bacteria whose DNA is completely alien to what we know today. Instead of using phosphorus, the bacteria uses arsenic. All life on Earth is made of six components: carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur.
  • The implications of this discovery are enormous to our understanding of life itself and the possibility of finding beings in other planets that don’t have to be like planet Earth.
Javier E

Worries About Success Can Make You Successful - Economic View - NYTimes.com - 0 views

  • In recent decades, behavioral economics has been the economics profession’s runaway growth area. Scholars in this field work largely at the intersection of economics and psychology, and much of their attention has focused on systematic biases in people’s judgments and decisions.
  • Paradoxically, our prediction errors often lead us to choices that are wisest in hindsight. In such cases, evolutionary biology often provides a clearer guide than cognitive psychology for thinking about why people behave as they do.
  • the brain has evolved not to make us happy, but to motivate actions that help push our DNA into the next round. Much of the time, in fact, the brain accomplishes that by making us unhappy. Anxiety, hunger, fatigue, loneliness, thirst, anger and fear spur action to meet the competitive challenges we face.
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  • The human brain was formed by relentless competition in the natural world, so it should be no surprise that we adapt quickly to changes in circumstances.
  • All of this brings us back to our decisions about how hard we should work — choices that have important implications for the lives we are able to lead. Most people would love to have a job with interesting, capable colleagues, a high level of autonomy and ample opportunities for creative expression. But only a limited number of such jobs are available — and it’s our fretting that can motivate us to get them.
  • THE anxiety we feel about whether we’ll succeed is evolution’s way of motivating us.
Javier E

Lots of Physicists Are Nervous About the Speed of Light - Technology - The Atlantic Wire - 0 views

  • Until subsequent experiments back up these results, it would be foolish, they say, to throw out a foundational theory of physics.
  • "The correct attitude is to ask oneself what went wrong."
  • "The implications could be huge. Particles that move faster than light are essentially moving backwards in time, which could make the phrase cause and effect obsolete."
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  • "Modern physics is based on two theories, relativity and the quantum theory, so half of modern physics would have to be replaced by a new theory.
Javier E

Going Home Again - NYTimes.com - 0 views

  • Most TED talks are about the future, but Sting’s was about going into the past. The difference between the two modes of thinking stood in stark contrast. In the first place, it was clear how much richer historical consciousness is than future vision.
  • Historical consciousness has a fullness of paradox that future imagination cannot match. When we think of the past, we think about the things that seemed bad at the time but turned out to be good in the long run. We think about the little things that seemed inconsequential in the moment but made all the difference.
  • Then it was obvious how regenerating going home again can be
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  • Going back is a creative process. The events of childhood are like the Hebrew alphabet; the vowels are missing, and the older self has to make sense of them
  • The person going back home has to invent a coherent tradition out of discrete moments and tease out future implications.
Javier E

Why Save a Language? - NYTimes.com - 0 views

  • “TELL me, why should we care?” he asks.
  • if indigenous people want to give up their ancestral language to join the modern world, why should we consider it a tragedy? Languages have always died as time has passed. What’s so special about a language?
  • The answer I’m supposed to give is that each language, in the way it applies words to things and in the way its grammar works, is a unique window on the world.
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  • But the question is whether such infinitesimal differences, perceptible only in a laboratory, qualify as worldviews — cultural standpoints or ways of thinking that we consider important. I think the answer is no.
  • experiments do show that a language can have a fascinating effect on how its speakers think
  • If a language dies, a fascinating way of thinking dies along with it.
  • extrapolating cognitive implications from language differences is a delicate business.
  • One psychologist argued some decades ago that this meant that Chinese makes a person less sensitive to such distinctions, which, let’s face it, is discomfitingly close to saying Chinese people aren’t as quick on the uptake as the rest of us. The truth is more mundane: Hypotheticality and counterfactuality are established more by context in Chinese than in English.
  • But if a language is not a worldview, what do we tell the guy in the lecture hall? Should we care that in 100 years only about 600 of the current 6,000 languages may be still spoken?
  • The answer is still yes, but for other reasons.
  • First, a central aspect of any culture’s existence as a coherent entity is the fact of its having its own language, regardless of what the language happens to be like
  • because language is so central to being human, to have a language used only with certain other people is a powerful tool for connection and a sense of community.
  • Second, languages are scientifically interesting even if they don’t index cultural traits. They offer variety equivalent to the diversity of the world’s fauna and flora.
  • As with any other feature of the natural world, such variety tests and expands our sense of the possible, of what is “normal.”
  • Cultures, to be sure, show how we are different. Languages, however, are variations on a worldwide, cross-cultural perception of this thing called life.
Javier E

The Cheapest Generation - The Atlantic - 0 views

  • today’s young people simply don’t drive like their predecessors did. In 2010, adults between the ages of 21 and 34 bought just 27 percent of all new vehicles sold in America, down from the peak of 38 percent in 1985. Miles driven are down, too. Even the proportion of teenagers with a license fell, by 28 percent, between 1998 and 2008.
  • What if Millennials’ aversion to car-buying isn’t a temporary side effect of the recession, but part of a permanent generational shift in tastes and spending habits? It’s a question that applies not only to cars, but to several other traditional categories of big spending—most notably, housing. And its answer has large implications for the future shape of the economy—and for the speed of recovery.
  • Half of a typical family’s spending today goes to transportation and housing
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  • Millennials have turned against both cars and houses in dramatic and historic fashion. Just as car sales have plummeted among their age cohort, the share of young people getting their first mortgage between 2009 and 2011 is half what it was just 10 years ago
  • he Great Recession is responsible for some of the decline. But it’s highly possible that a perfect storm of economic and demographic factors—from high gas prices, to re-­urbanization, to stagnating wages, to new technologies enabling a different kind of consumption—has fundamentally changed the game for Millennials
  • The emergence of the “sharing economy”—services that use the Web to let companies and families share otherwise idle goods—is headlined by Zipcar, but it also involves companies such as Airbnb, a shared market­place for bedrooms and other accommodations for travelers; and thred­UP, a site where parents can buy and sell kids’ used clothing.
  • tech­nology is allow­ing these practices to go mainstream, and that represents a big new step for consumers. For decades, inventory manage­ment was largely the province of companies, not individuals,
  • today, peer-to-peer software and mobile technology allow us all to have access, just when we need it, to the things we used to have to buy and hold. And the most powerful application is for cars.
  • Car ownership, meanwhile, has slipped down the hierarchy of status goods for many young adults. “Zipcar conducted a survey of Millennials,
  • “And this generation said, ‘We don’t care about owning a car.’ Cars used to be what people aspired to own. Now it’s the smartphone.”
  • Smartphones compete against cars for young people’s big-ticket dollars, since the cost of a good phone and data plan can exceed $1,000 a year. But they also provide some of the same psychic benefits—opening new vistas and carrying us far from the physical space in which we reside. “You no longer need to feel connected to your friends with a car
  • mobile technology has empowered more than just car-sharing. It has empowered friendships that can be maintained from a distance. The upshot could be a continuing shift from automobiles to mobile technology, and a big reduction in spending.
Javier E

When Beliefs and Facts Collide - NYTimes.com - 0 views

  • Yale Law School professor, Dan Kahan, finds that the divide over belief in evolution between more and less religious people is wider among people who otherwise show familiarity with math and science, which suggests that the problem isn’t a lack of information. When he instead tested whether respondents knew the theory of evolution, omitting mention of belief, there was virtually no difference between more and less religious people with high scientific familiarity. In other words, religious people knew the science; they just weren’t willing to say that they believed in it.
  • more people know what scientists think about high-profile scientific controversies than polls suggest; they just aren’t willing to endorse the consensus when it contradicts their political or religious views.
  • One implication of Mr. Kahan’s study and other research in this field is that we need to try to break the association between identity and factual beliefs on high-profile issues – for instance, by making clear that you can believe in human-induced climate change and still be a conservative Republican
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  • we also need to reduce the incentives for elites to spread misinformation to their followers in the first place. Once people’s cultural and political views get tied up in their factual beliefs, it’s very difficult to undo regardless of the messaging that is used.
Javier E

The Politics of Fraudulent Dietary Supplements - NYTimes.com - 0 views

  • One pill makes you smarter. One pill makes you thin. One pill makes you happy. Another keeps you energized. And so what if tests conducted by scientists in New York and Canada have found that the substances behind these miracle enhancements may contain nothing more than powdered rice or houseplants. If enough people believe they’ll be healthier, well, it’s a nice racket.
  • Nice, to the tune of $13 billion a year in sales. And here in Utah, which is to the dietary supplement business what Northern California is to marijuana, a huge industry has taken hold,
  • We’re not talking drugs, or even, in many cases, food here. Drugs have to undergo rigorous testing and review by the federal government. Dietary supplements do not. Drugs have to prove to be effective. Dietary supplements do not.
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  • These are the Frankenstein remedies — botanicals, herbs, minerals, enzymes, amino acids, dried stuff. They’re “natural.” They’re not cheap. And Americans pop them like Skittles, despite recent studies showing that nearly a third of all herbal supplements on the market may be outright frauds.
  • To understand how we got here, you have to go back to 1994, when Senator Orrin G. Hatch of Utah midwifed through Congress a new industry protected from all but minimal regulation. It is also an industry that would make many of his closest associates and family members rich. In turn, they’ve rewarded him with sizable campaign contributions.
  • Even though serious illnesses, and some deaths are on the rise from misuse of these supplements, Hatch is determined to keep regulators at bay. “I am committed to protect this industry and the integrity of its products,” he told a gathering of potency pill-pushers and the like in Utah last fall.
  • what about the medical implications? These pills and powders can’t, by law, make specific claims to cure anything. So they claim to make you healthier. The consumer is left playing doctor, reading questionable assertions that course through the unfiltered garbage of the Internet.
  • there was this finding reported in the authoritative Annals of Internal Medicine: “Enough is enough: Stop wasting money on vitamin and mineral supplements.”
  • So, the industry keeps growing, with 65,000 dietary supplements now on the market, consumed by nearly half of all Americans. The larger issue is mistrust of authority, a willful ignorance that knows no political side. Thus, right-wing libertarians promote a freewheeling market of quack products, while left-wing conspiracy theorists disdain modern medicine in favor of anything sold as “natural” or vaguely countercultural. These are some of the same people who will not vaccinate their children.
carolinewren

Brain-to-brain interfaces: the science of telepathy - 0 views

  • Recent advances in brain-computer interfaces are turning the science fantasy of transmitting thoughts directly from one brain to another into reality.
  • A TMS device creates a magnetic field over the scalp, which then causes an electrical current in the brain.
  • Cell-to-cell communication occurs via a process known as synaptic transmission, where chemical signals are passed between cells resulting in electrical spikes in the receiving cell.
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  • Because cells are connected in a network, brain activity produces a synchronised pulse of electrical activity, which is called a “brain wave”.
  • Brainwaves are detected using a technique known as electroencephalography (EEG),
  • The pattern of activity is then recorded and interpreted using computer software.
  • The electrical nature of the brain allows not only for sending of signals, but also for the receiving of electrical pulses
  • Studies published in the last two years have reported direct transmission of brain activity between two animals, between two humans and even between a human and a rat.
  • The connection was reinforced by giving both rats a reward when the receiver rat performed the task correctly.
  • By combining EEG and TMS, scientists have transmitted the thought of moving a hand from one person to a separate individual, who actually moved their hand.
  • including EEG, the Internet and TMS – the team of researchers was able to transmit a thought all the way from India to France.
  • Words were first coded into binary notation
  • Now that these BBI technologies are becoming a reality, they have a huge potential to impact the way we interact with other humans. And maybe even the way we communicate with animals through direct transmission of thought.
  • Such technologies have obvious ethical and legal implications, however. So it is important to note that the success of BBIs depends upon the conscious coupling of the subjects.
Javier E

Why Teenagers Act Crazy - NYTimes.com - 1 views

  • there is a darker side to adolescence that, until now, was poorly understood: a surge during teenage years in anxiety and fearfulness. Largely because of a quirk of brain development, adolescents, on average, experience more anxiety and fear and have a harder time learning how not to be afraid than either children or adults.
  • the brain circuit for processing fear — the amygdala — is precocious and develops way ahead of the prefrontal cortex, the seat of reasoning and executive control. This means that adolescents have a brain that is wired with an enhanced capacity for fear and anxiety, but is relatively underdeveloped when it comes to calm reasoning.
  • the brain’s reward center, just like its fear circuit, matures earlier than the prefrontal cortex. That reward center drives much of teenagers’ risky behavior. This behavioral paradox also helps explain why adolescents are particularly prone to injury and trauma. The top three killers of teenagers are accidents, homicide and suicide.
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  • The brain-development lag has huge implications for how we think about anxiety and how we treat it. It suggests that anxious adolescents may not be very responsive to psychotherapy that attempts to teach them to be unafraid, like cognitive behavior therapy
  • should also make us think twice — and then some — about the ever rising use of stimulants in young people, because these drugs may worsen anxiety and make it harder for teenagers to do what they are developmentally supposed to do: learn to be unafraid when it is appropriate
  • up to 20 percent of adolescents in the United States experience a diagnosable anxiety disorder, like generalized anxiety or panic attacks, probably resulting from a mix of genetic factors and environmental influences.
  • This isn’t to say that cognitive therapy is ineffective for teenagers, but that because of their relative difficulty in learning to be unafraid, it may not be the most effective treatment when used on its own.
  • Fear learning lies at the heart of anxiety and anxiety disorders. This primitive form of learning allows us to form associations between events and specific cues and environments that may predict danger.
  • once previously threatening cues or situations become safe, we have to be able to re-evaluate them and suppress our learned fear associations. People with anxiety disorders have trouble doing this and experience persistent fear in the absence of threat — better known as anxiety.
  • Dr. Casey discovered that adolescents had a much harder time “unlearning” the link between the colored square and the noise than children or adults did.
  • adolescents had trouble learning that a cue that was previously linked to something aversive was now neutral and “safe.” If you consider that adolescence is a time of exploration when young people develop greater autonomy, an enhanced capacity for fear and a more tenacious memory for threatening situations are adaptive and would confer survival advantage. In fact, the developmental gap between the amygdala and the prefrontal cortex that is described in humans has been found across mammalian species, suggesting that this is an evolutionary advantage.
  • As a psychiatrist, I’ve treated many adults with various anxiety disorders, nearly all of whom trace the origin of the problem to their teenage years. They typically report an uneventful childhood rudely interrupted by adolescent anxiety. For many, the anxiety was inexplicable and came out of nowhere.
  • prescription sales for stimulants increased more than fivefold between 2002 and 2012. This is of potential concern because it is well known from both human and animal studies that stimulants enhance learning and, in particular, fear conditioning.
Javier E

The Government's Bad Diet Advice - NYTimes.com - 0 views

  • How did experts get it so wrong?
  • the primary problem is that nutrition policy has long relied on a very weak kind of science: epidemiological, or “observational,” studies in which researchers follow large groups of people over many years. But even the most rigorous epidemiological studies suffer from a fundamental limitation. At best they can show only association, not causation.
  • Instead of accepting that this evidence was inadequate to give sound advice, strong-willed scientists overstated the significance of their studies.
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  • In clearing our plates of meat, eggs and cheese (fat and protein), we ate more grains, pasta and starchy vegetables (carbohydrates). Over the past 50 years, we cut fat intake by 25 percent and increased carbohydrates by more than 30 percent, according to a new analysis of government data. Yet recent science has increasingly shown that a high-carb diet rich in sugar and refined grains increases the risk of obesity, diabetes and heart disease — much more so than a diet high in fat and cholesterol.
  • In 2013, government advice to reduce salt intake (which remains in the current report) was contradicted by an authoritative Institute of Medicine study. And several recent meta-analyses have cast serious doubt on whether saturated fats are linked to heart disease, as the dietary guidelines continue to assert.
  • Much of the epidemiological data underpinning the government’s dietary advice comes from studies run by Harvard’s school of public health. In 2011, directors of the National Institute of Statistical Sciences analyzed many of Harvard’s most important findings and found that they could not be reproduced in clinical trials.
  • Today, we are poised to make the same mistakes. The committee’s new report also advised eliminating “lean meat” from the list of recommended healthy foods, as well as cutting back on red and processed meats. Fewer protein choices will likely encourage Americans to eat even more carbs. It will also have policy implications: Meat could be limited in school lunches and other federal food programs.
  • It’s possible that a mostly meatless diet could be healthy for all Americans — but then again, it might not be. We simply do not know. There are no rigorous clinical trials on such a diet, and although epidemiological data exists for adult vegetarians, there is none for children.
  • We have to start looking more skeptically at epidemiological studies and rethinking nutrition policy from the ground up.
  • Until then, we would be wise to return to what worked better for previous generations: a diet that included fewer grains, less sugar and more animal foods like meat, full-fat dairy and eggs
Javier E

Ta-Nehisi Coates defines a new race beat - Columbia Journalism Review - 0 views

  • “The Case for Reparations,” Coates’ 16,000-word cover story for The Atlantic, where he is a national correspondent. Published online in May, it was a close look at housing discrimination, such as redlining, that was really about the need for America to take a brutally honest look in the mirror and acknowledge its deep racial divisions.
  • The story broke a single-day traffic record for a magazine story on The Atlantic’s website, and in its wake, Politico named him to its list of 50 thinkers changing American politics
  • Coates believes that if there is an answer to contemporary racism, it lies in confronting the pas
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  • For Coates, true equality means “black people in this country have the right to be as mediocre as white people,” he says. “Not that individual black people will be as excellent, or more excellent, than other white people.”
  • he came to see black respectability—the idea that, to succeed, African-Americans must stoically prevail against the odds and be “twice as good” as white people to get the same rights—as deeply immoral.
  • He is no soothsayer, telling people what to think from on high, but rather is refreshingly open about what he doesn’t know, inviting readers to learn with him. Coates is not merely an ivory-tower pontificator or a shiny Web 2.0 brand. He is a public intellectual for the digital age.
  • he cites research that in 1860 slaves were the largest asset in the US economy. “It is almost impossible to think of democracy, as it was formed in America, without the enslavement of African-Americans,” he says. “Not that these things were bumps in the road along the way, but that they were the road.”
  • Another term for that road is “white supremacy.” This refers not so much to hate groups, but, as Coates defines it, a system of policies and beliefs that aims to keep African-Americans as “a peon class.”
  • To be “white” in this sense does not refer merely to skin color but to the degree that someone qualifies as “normal,” and thus worthy of the same rights as all Americans
  • The pool where all these ideas eventually arrive is a question: “How big-hearted can democracy be?” he says. “How many people can it actually include and sustain itself? That is the question I’m asking over and over again.”
  • it is a question of empathy. Are humans capable of forming a society where everyone can flourish?
  • there was the coverage of Michael Brown (or Jordan Davis, or Renisha McBride, or Eric Garner): unarmed African-Americans killed by police or others under controversial circumstances. In each case, the storyline was that these horrific encounters were caused either by genuine provocation, or by race-fueled fear or hatred. Either way, they were stories of personal failings.
  • When an event becomes news, there is often an implication that it is an exception—that the world is mostly working as it should and this event is newsworthy because it’s an aberration. If the race-related stories we see most often in the media are about personal bigotry, then our conception of racism is limited to the bigoted remarks or actions—racism becomes little more than uttering the n-word.
  • we miss the real question of why there is a systemic, historical difference in the way police treat blacks versus whites.
  • a lack of historical perspective in the media’s approach to race. “Journalism privileges what’s happening now over the long reasons for things happening,” he says. “And for African-Americans, that has a particular effect.”
  • Even the very existence of racism is questioned: A recent study published by the Association of Psychological Science has shown that whites think they are discriminated against due to race as much if not more than blacks.
  • “So when you’re talking about something like institutional racism and prejudice, how do you talk about that as an objective reality?”
  • Coates’ strength is in connecting contemporary problems to historical scholarship. “I think if I bring anything to the table it’s the ability to synthesize all of that into something that people find emotionally moving,” he says. The irony of the reparations piece, as unoriginal as it may have been to scholars, is that it was news to many people.
  • Reporting on race requires simultaneously understanding multiple, contradictory worlds, with contradictory narratives. Widespread black poverty exists; so do a black middle class and a black president
  • Progress is key to the myth of American Exceptionalism, and the notion that America is built on slavery and on freedom are discordant ideas that threaten any simple storyline. Coates, together with others who join him, is trying to claim the frontier of a new narrative.
  • reading Coates is like building a worldview, piece by piece, on an area of contemporary life that’s otherwise difficult to grasp.
  • “To come and tell someone may not be as effective in convincing them as allowing them to learn on their own. If you believe you come to a conclusion on your own, you’re more likely to agree.”
  • It’s brave to bare yourself intellectually on the Web, and to acknowledge mistakes, especially when the capital that public intellectuals appear to have is their ability to be “right.”
  • Coates is equally demanding of his followers. Online he is blunt, and willing to call people out. He cares enough to be rigorous
  • despite being a master of online engagement, Coates insists he does not write for others, an idea he explained in a recent post: “I have long believed that the best part of writing is not the communication of knowledge to other people, but the acquisition and synthesizing of knowledge for oneself. The best thing I can say about the reparations piece is that I now understand.”
  • To him, it’s an open question whether or not America will ever be capable of fostering true equality. “How big-hearted can democracy be? It points to a very ugly answer: maybe not that big-hearted at all. That in fact America is not exceptional. That it’s just like every other country. That it passes its democracy and it passes all these allegedly big-hearted programs [the New Deal, the G.I. Bill] but still excludes other people,
  • In a 2010 post about antebellum America, Coates mentioned feminist and abolitionist Angelina Grimke. “Suffice to say that much like Abe Lincoln, and Ulysses Grant, Angelina Grimke was a Walker,” he wrote. “What was the Walker reference?” Rosemartian asked in the comments section. “Just someone who spends their life evolving, or, walking,” Coates replied. “Grant and Lincoln fit in there for me. Malcolm X was another Walker. Walkers tend to be sometimes—even often—wrong. But they are rarely bigots, in the sense of nakedly clinging to ignorance.”
Javier E

How Poor Are the Poor? - NYTimes.com - 0 views

  • “Anyone who studies the issue seriously understands that material poverty has continued to fall in the U.S. in recent decades, primarily due to the success of anti-poverty programs” and the declining cost of “food, air-conditioning, communications, transportation, and entertainment,”
  • Despite the rising optimism, there are disagreements over how many poor people there are and the conditions they live under. There are also questions about the problem of relative poverty, what we are now calling inequality
  • Jencks argues that the actual poverty rate has dropped over the past five decades – far below the official government level — if poverty estimates are adjusted for food and housing benefits, refundable tax credits and a better method of determining inflation rates. In Jencks’s view, the war on poverty worked.
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  • Democratic supporters of safety net programs can use Jencks’s finding that poverty has dropped below 5 percent as evidence that the war on poverty has been successful.
  • At the same time liberals are wary of positive news because, as Jencks notes:It is easier to rally support for such an agenda by saying that the problem in question is getting worse
  • The plus side for conservatives of Jencks’s low estimate of the poverty rate is the implication that severe poverty has largely abated, which then provides justification for allowing enemies of government entitlement programs to further cut social spending.
  • At the same time, however, Jencks’s data undermines Republican claims that the war on poverty has been a failure – a claim exemplified by Ronald Reagan’s famous 1987 quip: “In the sixties we waged a war on poverty, and poverty won.”
  • Jencks’s conclusion: “The absolute poverty rate has declined dramatically since President Johnson launched his war on poverty in 1964.” At 4.8 percent, Jencks’s calculation is the lowest poverty estimate by a credible expert in the field.
  • his conclusion — that instead of the official count of 45.3 million people living in poverty, the number of poor people in America is just under 15 million — understates the scope of hardship in this country.
  • There are strong theoretical justifications for the use of a relative poverty measure. The Organization for Economic Cooperation and Development puts it this way:In order to participate fully in the social life of a community, individuals may need a level of resources that is not too inferior to the norms of a community. For example, the clothing budget that allows a child not to feel ashamed of his school attire is much more related to national living standards than to strict requirements for physical survival
  • using a relative measure shows that the United States lags well behind other developed countries:If you use the O.E.C.D. standard of 50 percent of median income as a poverty line, the United States looks pretty bad in cross-national relief. We have a relative poverty rate exceeded only by Chile, Turkey, Mexico and Israel (which has seen a big increase in inequality in recent years). And that rate in 2010 was essentially where it was in 1995
  • While the United States “has achieved real progress in reducing absolute poverty over the past 50 years,” according to Burtless, “the country may have made no progress at all in reducing the relative economic deprivation of folks at the bottom.”
  • the heart of the dispute: How severe is the problem of poverty?
  • Kathryn Edin, a professor of sociology at Johns Hopkins, and Luke Schaefer, a professor of social work at the University of Michigan, contend that the poverty debate overlooks crucial changes that have taken place within the population of the poor.
  • welfare reform, signed into law by President Clinton in 1996 (the Personal Responsibility and Work Opportunity Act), which limited eligibility for welfare benefits to five years. The limitation has forced many of the poor off welfare: over the past 19 years, the percentage of families falling under the official poverty line who receive welfare benefits has fallen from to 26 percent from 68 percent. Currently, three-quarters of those in poverty, under the official definition, receive no welfare payments.
  • he enactment of expanded benefits for the working poor through the earned-income tax credit and the child tax credit.According to Edin and Schaefer, the consequence of these changes, taken together, has been to divide the poor who no longer receive welfare into two groups. The first group is made up of those who have gone to work and have qualified for tax credits. Expanded tax credits lifted about 3.2 million children out of poverty in 2013
  • he second group, though, has really suffered. These are the very poor who are without work, part of a population that is struggling desperately. Edin and Schaefer write that among the losers are an estimated 3.4 million “children who over the course of a year live for at least three months under a $2 per person per day threshold.”
  • ocusing on these findings, Mishel argues, diverts attention from the more serious problem of “the failure of the labor market to adequately reward low-wage workers.”To support his case, Mishel points out that hourly pay for those in the bottom fifth grew only 7.7 percent from 1979 to 2007, while productivity grew by 64 percent, and education levels among workers in this quintile substantially improved.
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