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sanderk

The Exaggerated Promise of So-Called Unbiased Data Mining | WIRED - 1 views

  • The Feynman trap—ransacking data for patterns without any preconceived idea of what one is looking for—is the Achilles heel of studies based on data mining. Finding something unusual or surprising after it has already occurred is neither unusual nor surprising. Patterns are sure to be found, and are likely to be misleading, absurd, or worse.
  • A standard neuroscience experiment involves showing a volunteer in an MRI machine various images and asking questions about the images. The measurements are noisy, picking up magnetic signals from the environment and from variations in the density of fatty tissue in different parts of the brain. Sometimes they miss brain activity; sometimes they suggest activity where there is none.A Dartmouth graduate student used an MRI machine to study the brain activity of a salmon as it was shown photographs and asked questions. The most interesting thing about the study was not that a salmon was studied, but that the salmon was dead. Yep, a dead salmon purchased at a local market was put into the MRI machine, and some patterns were discovered. There were inevitably patterns—and they were invariably meaningless.
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    This article relates to our discussion in class about data mining. Scientists assume that patterns in data are true instead of making a hypothesis and trying to see if their hypothesis is true. These assumptions can lead to false conclusions. Also, this article talks about how people go through all of this data without knowing what they are looking for. When someone does this, it is called The Feynman Trap. I also found it interesting how someone studied the brain activity of a dead fish and still found patterns.
Javier E

The Data Vigilante - Christopher Shea - The Atlantic - 0 views

  • He is, on the contrary, seized by the conviction that science is beset by sloppy statistical maneuvering and, in some cases, outright fraud. He has therefore been moonlighting as a fraud-buster, developing techniques to help detect doctored data in other people’s research. Already, in the space of less than a year, he has blown up two colleagues’ careers.
  • In a paper called “False-Positive Psychology,” published in the prestigious journal Psychological Science, he and two colleagues—Leif Nelson, a professor at the University of California at Berkeley, and Wharton’s Joseph Simmons—showed that psychologists could all but guarantee an interesting research finding if they were creative enough with their statistics and procedures.
  • By going on what amounted to a fishing expedition (that is, by recording many, many variables but reporting only the results that came out to their liking); by failing to establish in advance the number of human subjects in an experiment; and by analyzing the data as they went, so they could end the experiment when the results suited them, they produced a howler of a result, a truly absurd finding. They then ran a series of computer simulations using other experimental data to show that these methods could increase the odds of a false-positive result—a statistical fluke, basically—to nearly two-thirds.
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  • “I couldn’t tolerate knowing something was fake and not doing something about it,” he told me. “Everything loses meaning. What’s the point of writing a paper, fighting very hard to get it published, going to conferences?”
  • Simonsohn stressed that there’s a world of difference between data techniques that generate false positives, and fraud, but he said some academic psychologists have, until recently, been dangerously indifferent to both. Outright fraud is probably rare. Data manipulation is undoubtedly more common—and surely extends to other subjects dependent on statistical study, including biomedicine. Worse, sloppy statistics are “like steroids in baseball”: Throughout the affected fields, researchers who are too intellectually honest to use these tricks will publish less, and may perish. Meanwhile, the less fastidious flourish.
Emily Horwitz

News from The Associated Press - 0 views

  • If you saw the film "Argo," no, you didn't miss this development, which is recounted in Mendez's book about the real-life operation. It wasn't there because director Ben Affleck and screenwriter Chris Terrio replaced it with an even more dramatic scenario, involving canceled flight reservations, suspicious Iranian officials who call the Hollywood office of the fake film crew (a call answered just in time), and finally a heart-pounding chase on the tarmac just as the plane's wheels lift off, seconds from catastrophe.
  • they've caught some flak for the liberties they took in the name of entertainment.
  • And they aren't alone - two other high-profile best-picture nominees this year, Kathryn Bigelow's "Zero Dark Thirty" and Steven Spielberg's "Lincoln," have also been criticized for different sorts of factual issues.
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  • But because these three major films are in contention, the issue has come to the forefront of this year's Oscar race, and with it a thorny cultural question: Does the audience deserve the truth, the whole truth and nothing but? Surely not, but just how much fiction is OK?
  • In response to a complaint by a Connecticut congressman, Kushner acknowledged he'd changed the details for dramatic effect, having two Connecticut congressmen vote against the amendment when, in fact, all four voted for it. (The names of those congressmen were changed, to avoid changing the vote of specific individuals.)
  • "Maybe changing the vote went too far," says Richard Walter, chairman of screenwriting at the University of California, Los Angeles. "Maybe there was another way to do it. But really, it's not terribly important. People accept that liberties will be taken. A movie is a movie. People going for a history lesson are going to the wrong place."
  • Kushner said he had "adhered to time-honored and completely legitimate standards for the creation of historical drama, which is what `Lincoln' is. I hope nobody is shocked to learn that I also made up dialogue and imagined encounters and invented characters."
  • Walter says he always tells his students: "Go for the feelings. Because the only thing that's truly real in the movies are the feelings that people feel when they watch."
  • No subject or individual's life is compelling and dramatic enough by itself, he says, that it neatly fits into a script with three acts, subplots, plot twists and a powerful villain.
  • Futterman says he was sympathetic to those concerns and would certainly have addressed them in the script, had he anticipated them.
  • "This is fraught territory," he says. "You're always going to have to change something, and you're always going to get in some sort of trouble, with somebody," he says.
  • Futterman also doesn't begrudge the "Argo" filmmakers, because he feels they use a directorial style that implies some fun is being had with the story. "All the inside joking about Hollywood - tonally, you get a sense that something is being played with," he says.
  • Reeves, who actually gave the "Lincoln" script a negative review because he thought it was too heavy on conversation and lacking action. He adds, though, that when the subject is as famous as Lincoln, one has a responsibility to be more faithful to the facts.
  • Of the three Oscar-nominated films in question, "Zero Dark Thirty" has inspired the most fervent debate. The most intense criticism, despite acclaim for the filmmaking craft involved, has been about its depictions of interrogations, with some, including a group of senators, saying the film misleads viewers for suggesting that torture provided information that helped the CIA find Osama bin Laden.
  • have been questions about the accuracy of the depiction of the main character, a CIA officer played by Jessica Chastain; the real person - or even combination of people, according to some theories - that she plays remains anonymous.
  • screenwriters have a double responsibility: to the material and to the audience.
  • The debate over "Argo" has been much less intense, though there has been some grumbling from former officials in Britain and New Zealand that their countries were portrayed incorrectly in the film as offering no help at all to the six Americans, whereas actually, as Mendez writes, they did provide some help.
  • "When I am hungry and crave a tuna fish sandwich, I don't go to a hardware store," he says. "When I seek a history lesson, I do not go to a movie theater. I loved `Argo' even though I know there was no last-minute turn-around via a phone call from President Carter, nor were there Iranian police cars chasing the plane down the tarmac as it took off. So what? These conceits simply make the movie more exciting."
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    This article reaffirmed my feelings that we can't trust everything that we see or hear through the media, because it is often skewed to better captivate the target audience. As the article stated, there appears to be a fine line in catering to the attention span of the audience, and respecting the known facts of a given event that is portrayed by a movie.
proudsa

More Than 3,700 Migrants Rescued In Mediterranean - 0 views

  • Italy's coastguard
  • 3,700 migrants from overcrowded and unsafe boats in the last two days
  • 18 different boats
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  • six rescue operations
  • traveling in a fishing boat and five rubber dinghies
  • Authorities also brought ashore a corpse in a metal coffin
  • shot dead
  • Sicilian court is investigating the death
  • waves of migrants arriving in overcrowded boats from North Africa
  • Italy
  • trying to convince the EU to help
  • EU this year agreed to triple funding for sea rescues off the coasts of Italy and Greece
  • deeply divided
  • manage the migrants once they come ashore
  • distribute 40,000 Syrian and Eritrean asylum seekers
  • Commission pla
  • "hot spots"
  • identify migrants and refugees
  • calls for those
  • France is increasingly turning back migrants
  • thousands of new boat arrivals each week
  • Italy's train stations
  • Rome and Milan
  • 100 migrants have been sleeping rough along the Italy-France border for almost two weeks
lenaurick

Mediterranean diet may slow aging of the brain - CNN.com - 0 views

  • As we age, our brains naturally shrink and our risk of having a stroke, dementia or Alzheimer's rise, and almost everyone experiences some kind of memory loss
  • Scientists know that people who exercise regularly, eat a healthy diet, avoid smoking and keep mentally stimulated generally have healthier brains
  • Researchers figured this out by looking at the brains of 674 people with an average age of 80. They asked these elderly people to fill out food surveys about what they ate in the last year and researchers scanned their brains. The group that ate a Mediterranean diet had heavier brains with more gray and white matter.
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  • In this study, a higher consumption of fish seemed to make a big difference in keeping your brain young.
  • People who ate a diet close to the MIND diet saw a 53% lower risk of developing Alzheimer's.
  • Even people who ate the MIND diet "most" (as opposed to "all") of the time saw a 35% reduced chance of developing the disease.
  • It has also been shown as a key to helping you live longer. It helps you manage your weight better and can lower your risk for cancer, and cardiovascular diseases.
Javier E

What Gamergate should have taught us about the 'alt-right' | Technology | The Guardian - 0 views

  • Gamergate
  • The 2014 hashtag campaign, ostensibly founded to protest about perceived ethical failures in games journalism, clearly thrived on hate – even though many of those who aligned themselves with the movement either denied there was a problem with harassment, or wrote it off as an unfortunate side effect
  • ure, women, minorities and progressive voices within the industry were suddenly living in fear. Sure, those who spoke out in their defence were quickly silenced through exhausting bursts of online abuse. But that wasn’t why people supported it, right? They were disenfranchised, felt ignored, and wanted to see a systematic change.
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  • Is this all sounding rather familiar now? Does it remind you of something?
  • it quickly became clear that the GamerGate movement was a mess – an undefined mission to Make Video Games Great Again via undecided means.
  • fter all, the culture war that began in games now has a senior representative in The White House. As a founder member and former executive chair of Brietbart News, Steve Bannon had a hand in creating media monster Milo Yiannopoulos, who built his fame and Twitter following by supporting and cheerleading Gamergate. This hashtag was the canary in the coalmine, and we ignored it.
  • Gamergate was an online movement that effectively began because a man wanted to punish his ex girlfriend. Its most notable achievement was harassing a large number of progressive figures - mostly women – to the point where they felt unsafe or considered leaving the industry
  • The similarities between Gamergate and the far-right online movement, the “alt-right”, are huge, startling and in no way a coincidence
  • These figures gave Gamergate a new sense of direction – generalising the rhetoric: this was now a wider war between “Social Justice Warriors” (SJWs) and everyday, normal, decent people. Games were simply the tip of the iceberg – progressive values, went the argument, were destroying everything
  • In 2016, new wave conservative media outlets like Breitbart have gained trust with their audience by painting traditional news sources as snooty and aloof. In 2014, video game YouTube stars, seeking to appear in touch with online gaming communities, unscrupulously proclaimed that traditional old-media sources were corrupt. Everything we’re seeing now, had its precedent two years ago.
  • With 2014’s Gamergate, Breitbart seized the opportunity to harness the pre-existing ignorance and anger among disaffected young white dudes. With Trump’s movement in 2016, the outlet was effectively running his campaign: Steve Bannon took leave of his role at the company in August 2016 when he was hired as chief executive of Trump’s presidential campaign
  • young men converted via 2014’s Gamergate, are being more widely courted now. By leveraging distrust and resentment towards women, minorities and progressives, many of Gamergate’s most prominent voices – characters like Mike Cernovich, Adam Baldwin, and Milo Yiannopoulos – drew power and influence from its chaos
  • no one in the movement was willing to be associated with the abuse being carried out in its name. Prominent supporters on Twitter, in subreddits and on forums like 8Chan, developed a range of pernicious rhetorical devices and defences to distance themselves from threats to women and minorities in the industry: the targets were lying or exaggerating, they were too precious; a language of dismissal and belittlement was formed against them. Safe spaces, snowflakes, unicorns, cry bullies. Even when abuse was proven, the usual response was that people on their side were being abused too. These techniques, forged in Gamergate, have become the standard toolset of far-right voices online
  • The majority of people who voted for Trump will never take responsibility for his racist, totalitarian policies, but they’ll provide useful cover and legitimacy for those who demand the very worst from the President Elect. Trump himself may have disavowed the “alt-right”, but his rhetoric has led to them feeling legitimised. As with Gamergate, the press risks being manipulated into a position where it has to tread a respectful middle ground that doesn’t really exist.
  • Using 4chan (and then the more sympathetic offshoot 8Chan) to plan their subversions and attacks made Gamergate a terribly sloppy operation, leaving a trail of evidence that made it quite clear the whole thing was purposefully, plainly nasty. But the video game industry didn’t have the spine to react, and allowed the movement to coagulate – forming a mass of spiteful disappointment that Breitbart was only more than happy to coddle
  • Historically, that seems to be Breitbart’s trick - strongly represent a single issue in order to earn trust, and then gradually indoctrinate to suit wider purposes. With Gamergate, they purposefully went fishing for anti-feminists. 2016’s batch of fresh converts – the white extremists – came from enticing conspiracy theories about the global neoliberal elite secretly controlling the world.
  • The greatest strength of Gamergate, though, was that it actually appeared to represent many left-leaning ideals: stamping out corruption in the press, pushing for better ethical practices, battling for openness.
  • There are similarities here with many who support Trump because of his promises to put an end to broken neo-liberalism, to “drain the swamp” of establishment corruption. Many left-leaning supporters of Gamergate sought to intellectualise their alignment with the hashtag, adopting familiar and acceptable labels of dissent – identifying as libertarian, egalitarian, humanist.
  • At best they unknowingly facilitated abuse, defending their own freedom of expression while those who actually needed support were threatened and attacked.
  • Genuine discussions over criticism, identity and censorship were paralysed and waylaid by Twitter voices obsessed with rhetorical fallacies and pedantic debating practices. While the core of these movements make people’s lives hell, the outer shell – knowingly or otherwise – protect abusers by insisting that the real problem is that you don’t want to talk, or won’t provide the ever-shifting evidence they politely require.
  • In 2017, the tactics used to discredit progressive game critics and developers will be used to discredit Trump and Bannon’s critics. There will be gaslighting, there will be attempts to make victims look as though they are losing their grip on reality, to the point that they gradually even start to believe it. The “post-truth” reality is not simply an accident – it is a concerted assault on the rational psyche.
  • The strangest aspect of Gamergate is that it consistently didn’t make any sense: people chose to align with it, and yet refused responsibility. It was constantly demanded that we debate the issues, but explanations and facts were treated with scorn. Attempts to find common ground saw the specifics of the demands being shifted: we want you to listen to us; we want you to change your ways; we want you to close your publication down. This movement that ostensibly wanted to protect free speech from cry bully SJWs simultaneously did what it could to endanger sites it disagreed with, encouraging advertisers to abandon support for media outlets that published stories critical of the hashtag. The petulance of that movement is disturbingly echoed in Trump’s own Twitter feed.
  • Looking back, Gamergate really only made sense in one way: as an exemplar of what Umberto Eco called “eternal fascism”, a form of extremism he believed could flourish at any point in, in any place – a fascism that would extol traditional values, rally against diversity and cultural critics, believe in the value of action above thought and encourage a distrust of intellectuals or experts – a fascism built on frustration and machismo. The requirement of this formless fascism would – above all else – be to remain in an endless state of conflict, a fight against a foe who must always be portrayed as impossibly strong and laughably weak
  • 2016 has presented us with a world in which our reality is being wilfully manipulated. Fake news, divisive algorithms, misleading social media campaigns.
  • The same voices moved into other geek communities, especially comics, where Marvel and DC were criticised for progressive storylines and decisions. They moved into science fiction with the controversy over the Hugo awards. They moved into cinema with the revolting kickback against the all-female Ghostbusters reboot.
  • Perhaps the true lesson of Gamergate was that the media is culturally unequipped to deal with the forces actively driving these online movements. The situation was horrifying enough two years ago, it is many times more dangerous now.
oliviaodon

Of bears and biases: scientific judgment and the fate of Yellowstone's grizzlies | The ... - 0 views

  • In March, the U.S. Fish and Wildlife Service (USFWS) announced its intent to remove protections afforded by the U.S. Endangered Species Act (ESA) to grizzly bears in the Greater Yellowstone Ecosystem
  • However, conservation organizations oppose “delisting” GYE grizzlies. They cite persistent threats to grizzlies, public opposition to delisting and ongoing scientific uncertainty regarding the population’s viability. Indeed, scientific uncertainty, especially threats posed by a changing climate, is one reason a federal court reversed a similar decision back in 2009, returning federal protections to GYE grizzlies.
  • According to the ESA, decisions about the listing of species are to be made “solely on the basis of the best scientific and commercial data available.”
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  • Numerous environmental statutes mandate that government agencies consider “the best available science” when making decisions. And agencies routinely consult with scientific experts to fullfill such mandates.
  • Such provisions work reasonably well when science offers clear and simple, black-and-white answers. But when there is uncertainty, is the expectation of scientific objectivity realistic?
  • To gain insight into what role bias may play in listing decisions, we surveyed a group of grizzly bear researchers. We found that experts’ judgments were associated with a number of factors outside the “best commercial and scientific data,” including their professional affiliations and social norms. Furthermore, we found that while there is no consensus in the scientific community regarding the threats to grizzly bears, the majority of scientists support continued listing.
oliviaodon

Sorry, climate change deniers, but the global warming 'pause' still never happened | Sy... - 0 views

  • Another day, another series of ridiculous and incorrect claims about global warming getting far more air than they deserve. The latest comes from none other than David Rose, a man who has serially misunderstood climate change so consistently that if he told me the sun would rise tomorrow, I'd be more inclined to believe the Earth had stopped rotating. He writes articles for the Daily Mail —it would be an insult to the fish to wrap them in this tabloid — and he uses a lot of typical techniques wielded by deniers, including cherry picking and misdirection. While he doesn't always deny global warming is happening, he does think it's not as bad as scientists say. I'll also note he has claimed the world is cooling, too, despite all the evidence (and I do mean all of it). But if you deny what the overwhelming majority of climate scientists are telling you, then in my opinion that makes you a denier.
  • Rose is, as usual, grossly exaggerating the death of global warming.
  • First, the "pause" is a claim that global warming has stopped since 1998 or so. This claim was never really true. 1998 was an unusually warm year, so if you start your measurements there it doesn't look like temperatures have risen much. But if you go back farther in time, the upward trend is very obvious. You have to look at the trend, and not short-term fluctuations!
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  • This shows that there can sometimes be a disconnect between the honest research of scientists and the way the public perceives that research. It's not anyone's fault really; the scientists are using the best methods and practices they have to understand reality, but the public gets and processes their information differently (not in a worse way, just different). It reminds me of the trouble we get using the word "theory"; to a scientist it means an extremely well-tested and reliable idea, but to the public it means more like a "guess." Same word, different uses, and it can give someone the wrong idea when used in the wrong context.
Javier E

Scholarship and Politics - The Case of Noam Chomsky - NYTimes.com - 0 views

  • (1) The academy is a world of its own, complete with rules, protocols, systems of evaluation, recognized achievements, agreed-on goals, a roster of heroes and a list of tasks yet to be done.
  • (2) Academic work proceeds within the confines of that world, within, that is, a professional, not a public, space, although its performance may be, and often is, public.
  • (3) academic work is only tangentially, not essentially, political; politics may attend the formation of academic units and the selection of academic personnel, but political concerns and pressures have no place in the unfolding of academic argument, except as objects of its distinctive forms of attention
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  • (4) The academic views of a professor are independent of his or her real-world political views; academic disputes don’t track partisan disputes or vice versa; you can’t reason from an academic’s disciplinary views to the positions he or she would take in the public sphere; they are independent variables.
  • The answer given in the first lecture — “What is Language?” — is that we are creatures with language, and that language as a uniquely human biological capacity appeared suddenly and quite late in the evolutionary story, perhaps 75,000 years ago.
  • Chomsky gave three lectures under the general title “What Kind of Creatures are We?”
  • Language, then, does not arise from the social/cultural environment, although the environment provides the stuff or input it works on. That input is “impoverished”; it can’t account for the creativity of language performance, which has its source not in the empirical world, but in an innate ability that is more powerful than the stimuli it utilizes and plays with. It follows that if you want to understand language, you shouldn’t look to linguistic behavior but to the internal mechanism — the Universal Grammar — of which particular linguistic behaviors are a non-exhaustive expression. (The capacity exceeds the empirical resources it might deploy.)
  • In his second lecture (“What Can We Understand?”), Chomsky took up the question of what humans are capable of understanding and his answer, generally, was that we can understand what we can understand, and that means that we can’t understand what is beyond our innate mental capacities
  • This does not mean, he said, that what we can’t understand is not real: “What is mysterious to me is not an argument that it does not exist.” It’s just that while language is powerful and creative, its power and creativity have limits; and since language is thought rather than an addition to or clothing of thought, the limits of language are the limits of what we can fruitfully think about
  • This is as good as it gets. There is “no evolution in our capacity for language.”
  • These assertions are offered as a counter to what Chomsky sees as the over-optimistic Enlightenment belief — common to many empiricist philosophies — that ours is a “limitless explanatory power” and that “we can do anything.”
  • In the third lecture (“What is the Common Good?”) Chomsky turned from the philosophy of mind and language to political philosophy and the question of what constitutes a truly democratic society
  • He likened dogmatic intellectual structures that interfere with free inquiry to coercive political structures that stifle the individual’s creative independence and fail to encourage humanity’s “richest diversity
  • He asserted that any institution marked by domination and hierarchy must rise to the challenge of justifying itself, and if it cannot meet the challenge, it should be dismantled.
  • He contrasted two accounts of democracy: one — associated by him with James Madison — distrusts the “unwashed” populace and puts its faith in representative government where those doing the representing (and the voting and the distributing of goods) constitute a moneyed and propertied elite
  • the other — associated by him with Adam Smith (in one of his moods), J. S. Mill, the 1960s and a tradition of anarchist writing — seeks to expand the franchise and multiply choices in the realms of thought, politics and economics. The impulse of this second, libertarian, strain of democracy, is “to free society from economic or theological guardianship,” and by “theological” Chomsky meant not formal religion as such but any assumed and frozen ideology that blocked inquiry and limited participation. There can’t, in short, be “too much democracy.”
  • It was thought of the highest order performed by a thinker, now 85 years old, who by and large eschewed rhetorical flourishes (he has called his own speaking style “boring” and says he likes it that way) and just did it, where ‘it” was the patient exploration of deep issues that had been explored before him by a succession of predecessors, fully acknowledged, in a conversation that is forever being continued and forever being replenished.
  • Yes, I said to myself, this is what we — those of us who bought a ticket on this particular train — do; we think about problems and puzzles and try to advance the understanding of them; and we do that kind of thinking because its pleasures are, in a strong sense, athletic and provide for us, at least on occasion, the experience of fully realizing whatever capabilities we might have. And we do it in order to have that experience, and to share it with colleagues and students of like mind, and not to make a moral or political point.
  • The term “master class” is a bit overused, but I feel no hesitation in using it here. It was a master class taught by a master, and if someone were to ask me what exactly is it that academics do, I would point to these lectures and say, simply, here it is, the thing itself.
grayton downing

Humans' living creations put on display | Science News - 1 views

  • Others would say she was a modern wonder. She was genetically engineered by a Canadian company to produce milk that could be spun into spider silk.
  • As visitors pass through a curtain to enter the darkened exhibition space, they see a spectacularly fluffy white ornamental chicken and an aquarium full of glowing fish
  • But Pell does not intend the museum to be merely a cabinet of curiosities or a freak show. Visitors will not find rants that drum up fears of “Frankenfoods.”
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  • Language used throughout the center is artfully neutral, and each specimen is accompanied by only a few basic facts and a brief story highlighting a social issue. One display shows dried leaves from a transgenic American chestnut, engineered with a wheat gene to resist the fungal blight that nearly eradicated wild populations of the tree. An audio guide recounts how researchers decided to use the wheat gene instead of one from frogs, for fear of controversy.
  • The museum’s approach could frustrate science enthusiasts when social and ethical questions push interesting scientific details into the background.
summertyler

Healthy diet may improve memory, says study - CNN.com - 0 views

  • "You are what you eat." But could what we eat also affect how we think?
  • eating a healthy diet could potentially be linked to a lower risk of memory and thinking decline
  • a higher diet quality could have on reducing the risk of memory loss.
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  • eating a balanced diet may be beneficial to reduce your risk of cognitive decline
  • there are many aspects of diet in combination with engaging in a healthy lifestyle that may influence cognitive decline
  • this new study suggests that improving overall diet quality is an important factor for lowering the risk of memory and thinking loss
  • "healthy diet" as one containing lots of fruits and vegetables, nuts, fish, moderate alcohol use and minimal red meat
  • "We just wanted to look at a diverse cohort of people from all around the world and analyze what their risk for cognitive decline would be if they consumed what most organizations would consider a 'healthy diet',"
  • Participants were tested for their thinking and memory skills, at the start of the study, then again after two and five years.
  • participants with the healthiest diets were 24% less likely to experience cognitive decline compared to those with the least healthy diets. These individuals were slightly older in age, more active, less likely to smoke and had a lower BMI.
  • blueberries may boost memory, and that a high intake of saturated and trans fats can have negative effects
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    good diets mean it is less likely for someone to lose their memory.
summertyler

Seeing Isn't Believing | The Scientist Magazine® - 0 views

  • Much of the early research on motion perception was performed on insects,1 but similar results have been found for a huge range of species, from fishes to birds to mammals
  • Correspondingly, prey animals would find color vision of little use, but they are extremely good at seeing the motion of an approaching predator.
  • Ambiguous illusions that can be interpreted in two different ways, but not both ways at the same time, can also shed light on how we perceive the world around us
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  • But as good as animals are at detecting motion, they can also be fooled.
  • Visual movement can be thought of as a change in brightness, or luminance, over space and time
  • Why does the visual system treat this jumping dot as a single object in motion, instead of seeing one spot disappear while an unrelated spot appears nearby at the same instant? First, the brain usually treats “suspicious coincidences” as being more than coincidences: it is more likely that this is a single spot in motion rather than two separate events. Second, the visual system is tolerant of brief gaps in stimuli, filling in those gaps when necessary. This perception of apparent motion is, of course, the basis of the entire movie and TV industries, as viewers see a smooth motion picture when in reality they are simply watching a series of stationary stills.
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    The perception of illusions
grayton downing

Send in the Bots | The Scientist Magazine® - 0 views

  • any hypothesis, his idea needed to be tested. But measuring brain activity in a moving ant—the most direct way to determine cognitive processing during animal decision making—was not possible. So Garnier didn’t study ants; he studied robots. U
  • The robots then navigated the environment by sensing light intensity through two sensors on their “heads.”
  • , several groups have used autonomous robots that sense and react to their environments to “debunk the idea that you need higher cognitive processing to do what look like cognitive things,”
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  • a growing number of scientists are using autonomous robots to interrogate animal behavior and cognition. Researchers have designed robots to behave like ants, cockroaches, rodents, chickens, and more, then deployed their bots in the lab or in the environment to see how similarly they behave to their flesh-and-blood counterparts.
  • robots give behavioral biologists the freedom to explore the mind of an animal in ways that would not be possible with living subjects, says University of Sheffield researcher James Marshall, who in March helped launch a 3-year collaborative project to build a flying robot controlled by a computer-run simulation of the entire honeybee brain.
  • “I really think there is a lot to be discovered by doing the engineering side along with the science.”
  • Not only did the bots move around the space like the rat pups did, they aggregated in remarkably similar ways to the real animals.3 Then Schank realized that there was a bug in his program. The robots weren’t following his predetermined rules; they were moving randomly.
  • Animal experiments are still needed to advance neuroscience.” But, he adds, robots may prove to be an indispensable new ethological tool for focusing the scope of research. “If you can have good physical models,” Prescott says, “then you can reduce the number of experiments and only do the ones that answer really important questions.”
  • animal-mimicking robots is not easy, however, particularly when knowledge of the system’s biology is lacking.
  • However, when the researchers also gave the robots a sense of flow, and programmed them to assume that odors come from upstream, the bots much more closely mimicked real lobster behavior. “That was a demonstration that the animals’ brains were multimodal—that they were using chemical information and flow information,” says Grasso, who has since worked on robotic models of octopus arms and crayfish.
  • some sense, the use of robotics in animal-behavior research is not that new. Since the inception of the field of ethology, researchers have been using simple physical models of animals—“dummies”—to examine the social behavior of real animals, and biologists began animating their dummies as soon as technology would allow. “The fundamental problem when you’re studying an interaction between two individuals is that it’s a two-way interaction—you’ve got two players whose behaviors are both variable,”
  • building a robot that animals will accept as one of their own is complicated, to say the least.
  • handful of other researchers have also successfully integrated robots with live animals—including fish, ducks, and chickens. There are several notable benefits to intermixing robots and animals; first and foremost, control. “One of the problems when studying behavior is that, of course, it’s very difficult to have control of animals, and so it’s hard for us to interpret fully how they interact with each other
Javier E

Ta-Nehisi Coates's 'Letter to My Son' - The Atlantic - 0 views

  • The question is not whether Lincoln truly meant “government of the people” but what our country has, throughout its history, taken the political term “people” to actually mean. In 1863 it did not mean your mother or your grandmother, and it did not mean you and me.
  • When the journalist asked me about my body, it was like she was asking me to awaken her from the most gorgeous dream. I have seen that dream all my life. It is perfect houses with nice lawns. It is Memorial Day cookouts, block associations, and driveways. The Dream is tree houses and the Cub Scouts. And for so long I have wanted to escape into the Dream, to fold my country over my head like a blanket. But this has never been an option, because the Dream rests on our backs, the bedding made from our bodies.
  • The destroyers will rarely be held accountable. Mostly they will receive pensions.
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  • you know now, if you did not before, that the police departments of your country have been endowed with the authority to destroy your body. It does not matter if the destruction is the result of an unfortunate overreaction. It does not matter if it originates in a misunderstanding. It does not matter if the destruction springs from a foolish policy
  • But a society that protects some people through a safety net of schools, government-backed home loans, and ancestral wealth but can only protect you with the club of criminal justice has either failed at enforcing its good intentions or has succeeded at something much darker.
  • It is hard to face this. But all our phrasing—race relations, racial chasm, racial justice, racial profiling, white privilege, even white supremacy—serves to obscure that racism is a visceral experience, that it dislodges brains, blocks airways, rips muscle, extracts organs, cracks bones, breaks teeth
  • ou must never look away from this. You must always remember that the sociology, the history, the economics, the graphs, the charts, the regressions all land, with great violence, upon the body.
  • And should one live in such a body? What should be our aim beyond meager survival of constant, generational, ongoing battery and assault? I have asked this question all my life.
  • The question is unanswerable, which is not to say futile. The greatest reward of this constant interrogation, of confrontation with the brutality of my country, is that it has freed me from ghosts and myths.
  • I was afraid long before you, and in this I was unoriginal. When I was your age the only people I knew were black, and all of them were powerfully, adamantly, dangerously afraid. It was always right in front of me. The fear was there in the extravagant boys of my West Baltimore neighborhood
  • The fear lived on in their practiced bop, their slouching denim, their big T- shirts, the calculated angle of their baseball caps, a catalog of behaviors and garments enlisted to inspire the belief that these boys were in firm possession of everything they desired.
  • To be black in the Baltimore of my youth was to be naked before the elements of the world, before all the guns, fists, knives, crack, rape, and disease. The law did not protect us. And now, in your time, the law has become an excuse for stopping and frisking you, which is to say, for furthering the assault on your body
  • I remember being amazed that death could so easily rise up from the nothing of a boyish afternoon, billow up like fog. I knew that West Baltimore, where I lived; that the north side of Philadelphia, where my cousins lived; that the South Side of Chicago, where friends of my father lived, comprised a world apart. Somewhere out there beyond the firmament, past the asteroid belt, there were other worlds where children did not regularly fear for their bodies
  • here will surely always be people with straight hair and blue eyes, as there have been for all history. But some of these straight-haired people with blue eyes have been “black,” and this points to the great difference between their world and ours. We did not choose our fences. They were imposed on us by Virginia planters obsessed with enslaving as many Americans as possible. Now I saw that we had made something down here, in slavery, in Jim Crow, in ghettoes. At The Mecca I saw how we had taken their one-drop rule and flipped it. They made us into a race. We made ourselves into a people.
  • I came to understand that my country was a galaxy, and this galaxy stretched from the pandemonium of West Baltimore to the happy hunting grounds of Mr. Belvedere. I obsessed over the distance between that other sector of space and my own. I knew that my portion of the American galaxy, where bodies were enslaved by a tenacious gravity, was black and that the other, liberated portion was not. I knew that some inscrutable energy preserved the breach. I felt, but did not yet understand, the relation between that other world and me. And I felt in this a cosmic injustice, a profound cruelty, which infused an abiding, irrepressible desire to unshackle my body and achieve the velocity of escape.
  • Before I could escape, I had to survive, and this could only mean a clash with the streets, by which I mean not just physical blocks, nor simply the people packed into them, but the array of lethal puzzles and strange perils which seem to rise up from the asphalt itself. The streets transform every ordinary day into a series of trick questions, and every incorrect answer risks a beat-down, a shooting, or a pregnancy. No one survives unscathed
  • When I was your age, fully one-third of my brain was concerned with who I was walking to school with, our precise number, the manner of our walk, the number of times I smiled, who or what I smiled at, who offered a pound and who did not—all of which is to say that I practiced the culture of the streets, a culture concerned chiefly with securing the body.
  • Why were only our heroes nonviolent? Back then all I could do was measure these freedom-lovers by what I knew. Which is to say, I measured them against children pulling out in the 7-Eleven parking lot, against parents wielding extension cords, and the threatening intonations of armed black gangs saying, “Yeah, nigger, what’s up now?” I judged them against the country I knew, which had acquired the land through murder and tamed it under slavery, against the country whose armies fanned out across the world to extend their dominion. The world, the real one, was civilization secured and ruled by savage means. How could the schools valorize men and women whose values society actively scorned? How could they send us out into the streets of Baltimore, knowing all that they were, and then speak of nonviolence?
  • the beauty of the black body was never celebrated in movies, in television, or in the textbooks I’d seen as a child. Everyone of any import, from Jesus to George Washington, was white. This was why your grandparents banned Tarzan and the Lone Ranger and toys with white faces from the house. They were rebelling against the history books that spoke of black people only as sentimental “firsts”—first black four-star general, first black congressman, first black mayor—always presented in the bemused manner of a category of Trivial Pursuit.
  • erious history was the West, and the West was white. This was all distilled for me in a quote I once read, from the novelist Saul Bellow. I can’t remember where I read it, or when—only that I was already at Howard. “Who is the Tolstoy of the Zulus?,” Bellow quipped
  • this view of things was connected to the fear that passed through the generations, to the sense of dispossession. We were black, beyond the visible spectrum, beyond civilization. Our history was inferior because we were inferior, which is to say our bodies were inferior. And our inferior bodies could not possibly be accorded the same respect as those that built the West. Would it not be better, then, if our bodies were civilized, improved, and put to some legitimate Christian use?
  • now I looked back on my need for a trophy case, on the desire to live by the standards of Saul Bellow, and I felt that this need was not an escape but fear again—fear that “they,” the alleged authors and heirs of the universe, were right. And this fear ran so deep that we accepted their standards of civilization and humanity.
  • “Tolstoy is the Tolstoy of the Zulus,” wrote Wiley. “Unless you find a profit in fencing off universal properties of mankind into exclusive tribal ownership.” And there it was. I had accepted Bellow’s premise. In fact, Bellow was no closer to Tolstoy than I was to Nzinga. And if I were closer it would be because I chose to be, not because of destiny written in DNA. My great error was not that I had accepted someone else’s dream but that I had accepted the fact of dreams, the need for escape, and the invention of racecraft.
  • still and all I knew that we were something, that we were a tribe—on one hand, invented, and on the other, no less real. The reality was out there on the Yard, on the first warm day of spring when it seemed that every sector, borough, affiliation, county, and corner of the broad diaspora had sent a delegate to the great world party
  • I could see now that that world was more than a photonegative of that of the people who believe they are white. “White America” is a syndicate arrayed to protect its exclusive power to dominate and control our bodies. Sometimes this power is direct (lynching), and sometimes it is insidious (redlining). But however it appears, the power of domination and exclusion is central to the belief in being white, and without it, “white people” would cease to exist for want of reasons
  • There is nothing uniquely evil in these destroyers or even in this moment. The destroyers are merely men enforcing the whims of our country, correctly interpreting its heritage and legacy. This legacy aspires to the shackling of black bodies
  • Think of all the embraces, all the private jokes, customs, greetings, names, dreams, all the shared knowledge and capacity of a black family injected into that vessel of flesh and bone. And think of how that vessel was taken, shattered on the concrete, and all its holy contents, all that had gone into each of them, was sent flowing back to the earth. It is terrible to truly see our particular beauty, Samori, because then you see the scope of the loss. But you must push even further. You must see that this loss is mandated by the history of your country, by the Dream of living white.
  • I don’t know if you remember how the film we saw at the Petersburg Battlefield ended as though the fall of the Confederacy were the onset of a tragedy, not jubilee. I doubt you remember the man on our tour dressed in the gray wool of the Confederacy, or how every visitor seemed most interested in flanking maneuvers, hardtack, smoothbore rifles, grapeshot, and ironclads, but virtually no one was interested in what all of this engineering, invention, and design had been marshaled to achieve. You were only 10 years old. But even then I knew that I must trouble you, and this meant taking you into rooms where people would insult your intelligence, where thieves would try to enlist you in your own robbery and disguise their burning and looting as Christian charity. But robbery is what this is, what it always was.
  • American reunion was built on a comfortable narrative that made enslavement into benevolence, white knights of body snatchers, and the mass slaughter of the war into a kind of sport in which one could conclude that both sides conducted their affairs with courage, honor, and élan. This lie of the Civil War is the lie of innocence, is the Dream.
  • I, like every kid I knew, loved The Dukes of Hazzard. But I would have done well to think more about why two outlaws, driving a car named the General Lee, must necessarily be portrayed as “just some good ole boys, never meanin’ no harm”—a mantra for the Dreamers if there ever was one. But what one “means” is neither important nor relevant. It is not necessary that you believe that the officer who choked Eric Garner set out that day to destroy a body. All you need to understand is that the officer carries with him the power of the American state and the weight of an American legacy, and they necessitate that of the bodies destroyed every year, some wild and disproportionate number of them will be black.
  • Here is what I would like for you to know: In America, it is traditional to destroy the black body—it is heritage. Enslavement was not merely the antiseptic borrowing of labor—it is not so easy to get a human being to commit their body against its own elemental interest. And so enslavement must be casual wrath and random manglings, the gashing of heads and brains blown out over the river as the body seeks to escape. It must be rape so regular as to be industrial. There is no uplifting way to say this.
  • It had to be blood. It had to be the thrashing of kitchen hands for the crime of churning butter at a leisurely clip. It had to be some woman “chear’d ... with thirty lashes a Saturday last and as many more a Tuesday again.” It could only be the employment of carriage whips, tongs, iron pokers, handsaws, stones, paperweights, or whatever might be handy to break the black body, the black family, the black community, the black nation. The bodies were pulverized into stock and marked with insurance. And the bodies were an aspiration, lucrative as Indian land, a veranda, a beautiful wife, or a summer home in the mountains. For the men who needed to believe themselves white, the bodies were the key to a social club, and the right to break the bodies was the mark of civilization.
  • “The two great divisions of society are not the rich and poor, but white and black,” said the great South Carolina senator John C. Calhoun. “And all the former, the poor as well as the rich, belong to the upper class, and are respected and treated as equals.” And there it is—the right to break the black body as the meaning of their sacred equality. And that right has always given them meaning, has always meant that there was someone down in the valley because a mountain is not a mountain if there is nothing below.
  • There is no them without you, and without the right to break you they must necessarily fall from the mountain, lose their divinity, and tumble out of the Dream. And then they would have to determine how to build their suburbs on something other than human bones, how to angle their jails toward something other than a human stockyard, how to erect a democracy independent of cannibalism. I would like to tell you that such a day approaches when the people who believe themselves to be white renounce this demon religion and begin to think of themselves as human. But I can see no real promise of such a day. We are captured, brother, surrounded by the majoritarian bandits of America. And this has happened here, in our only home, and the terrible truth is that we cannot will ourselves to an escape on our own.
  • I think now of the old rule that held that should a boy be set upon in someone else’s chancy hood, his friends must stand with him, and they must all take their beating together. I now know that within this edict lay the key to all living. None of us were promised to end the fight on our feet, fists raised to the sky. We could not control our enemies’ number, strength, or weaponry. Sometimes you just caught a bad one. But whether you fought or ran, you did it together, because that is the part that was in our control. What we must never do is willingly hand over our own bodies or the bodies of our friends. That was the wisdom: We knew we did not lay down the direction of the street, but despite that, we could—and must—fashion the way of our walk. And that is the deeper meaning of your name—that the struggle, in and of itself, has meaning.
  • I have raised you to respect every human being as singular, and you must extend that same respect into the past. Slavery is not an indefinable mass of flesh. It is a particular, specific enslaved woman, whose mind is as active as your own, whose range of feeling is as vast as your own; who prefers the way the light falls in one particular spot in the woods, who enjoys fishing where the water eddies in a nearby stream, who loves her mother in her own complicated way, thinks her sister talks too loud, has a favorite cousin, a favorite season, who excels at dressmaking and knows, inside herself, that she is as intelligent and capable as anyone. “Slavery” is this same woman born in a world that loudly proclaims its love of freedom and inscribes this love in its essential texts, a world in which these same professors hold this woman a slave, hold her mother a slave, her father a slave, her daughter a slave, and when this woman peers back into the generations all she sees is the enslaved. She can hope for more. She can imagine some future for her grandchildren. But when she dies, the world—which is really the only world she can ever know—ends. For this woman, enslavement is not a parable. It is damnation. It is the never-ending night. And the length of that night is most of our history. Never forget that we were enslaved in this country longer than we have been free. Never forget that for 250 years black people were born into chains—whole generations followed by more generations who knew nothing but chains.
  • You must resist the common urge toward the comforting narrative of divine law, toward fairy tales that imply some irrepressible justice. The enslaved were not bricks in your road, and their lives were not chapters in your redemptive history. They were people turned to fuel for the American machine. Enslavement was not destined to end, and it is wrong to claim our present circumstance—no matter how improved—as the redemption for the lives of people who never asked for the posthumous, untouchable glory of dying for their children. Our triumphs can never redeem this. Perhaps our triumphs are not even the point. Perhaps struggle is all we have
  • I am not a cynic. I love you, and I love the world, and I love it more with every new inch I discover. But you are a black boy, and you must be responsible for your body in a way that other boys cannot know. Indeed, you must be responsible for the worst actions of other black bodies, which, somehow, will always be assigned to you. And you must be responsible for the bodies of the powerful—the policeman who cracks you with a nightstick will quickly find his excuse in your furtive movements. You have to make your peace with the chaos, but you cannot lie.
  • “I could have you arrested,” he said. Which is to say: “One of your son’s earliest memories will be watching the men who sodomized Abner Louima and choked Anthony Baez cuff, club, tase, and break you.” I had forgotten the rules, an error as dangerous on the Upper West Side of Manhattan as on the West Side of Baltimore. One must be without error out here. Walk in single file. Work quietly. Pack an extra No. 2 pencil. Make no mistakes.
  • the price of error is higher for you than it is for your countrymen, and so that America might justify itself, the story of a black body’s destruction must always begin with his or her error, real or imagined—with Eric Garner’s anger, with Trayvon Martin’s mythical words (“You are gonna die tonight”), with Sean Bell’s mistake of running with the wrong crowd, with me standing too close to the small-eyed boy pulling out.
  • You are called to struggle, not because it assures you victory but because it assures you an honorable and sane life
  • I am sorry that I cannot save you—but not that sorry. Part of me thinks that your very vulnerability brings you closer to the meaning of life, just as for others, the quest to believe oneself white divides them from it. The fact is that despite their dreams, their lives are also not inviolable. When their own vulnerability becomes real—when the police decide that tactics intended for the ghetto should enjoy wider usage, when their armed society shoots down their children, when nature sends hurricanes against their cities—they are shocked by the rages of logic and the natural world in a way that those of us who were born and bred to understand cause and effect can never be.
  • I would not have you live like them. You have been cast into a race in which the wind is always at your face and the hounds are always at your heels. And to varying degrees this is true of all life. The difference is that you do not have the privilege of living in ignorance of this essential fact.
  • I never wanted you to be twice as good as them, so much as I have always wanted you to attack every day of your brief bright life determined to struggle. The people who must believe they are white can never be your measuring stick. I would not have you descend into your own dream. I would have you be a conscious citizen of this terrible and beautiful world.
Javier E

Haiku Economics by Stephen T. Ziliak : Poetry Magazine [article/magazine] - 0 views

  • a model is a metaphor. Not every economist understands that. Poetry can fill the gap between reason and emotion, adding feelings to economics.
  • “Generally speaking, a people’s metaphors and figures of speech will come out of their basic economy,” Knight continues: If somebody lives near the ocean and they fish, their language will be full of those metaphors. If people are farmers, they will use that kind of figure of speech. Metaphors are alive. When they come into being, they are informed by the politics and the sociology and the economy of now. That’s how language is.
Javier E

How Social Status Affects Your Health - NYTimes.com - 0 views

  • If you want to see how status affects health, you have to isolate status from material wealth. How to do that? The easiest way is to observe a society in which there is minimal material wealth to contest and where there are limited avenues for status competition.
  • For several years, we studied the Tsimane forager-horticulturalists of Amazonian Bolivia, a small, preindustrial, politically egalitarian society in which status confers no formal privileges (such as coercive authority).
  • we found that even among the Tsimane, higher status was associated with lower levels of stress and better health.
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  • Along the banks of the Maniqui River and in adjacent forests, the Tsimane people hunt, fish and plant plantains, rice and sweet manioc. They live in villages that range in size from 30 to 700 people. During village meetings, decision making is consensus-based. No individual has the right to coerce anyone else.
  • that doesn’t mean there are no status distinctions. When you attend a Tsimane village meeting, you soon notice that the opinions of certain men are more influential during the consensus-building process. These same men are often solicited to mediate disputes or to represent villagers’ interests with outsiders.
  • My colleagues and I measured the social status of all the men from four Tsimane villages (nearly 200 men between the ages of 18 and 83), by asking them to evaluate one another on their informal political influence. The men also provided urine samples and received medical examinations from physicians
  • We found that Tsimane men with less political influence had higher levels of the stress hormone cortisol, which has many important physiological functions. This result persisted after controlling for other factors that might affect stress levels, including age, body size and personality.
  • In addition, we found that the less influential Tsimane men had a higher risk of respiratory infection, the most common cause of sickness and death in their society. Stress may contribute to this disparity in infection risk; when chronic, stress can dampen immune function.
  • Studying the same individuals over a four-year period, we also found that for men whose influence declined over time, greater declines were correlated with higher levels of cortisol and respiratory illness. Downward mobility is harmful, it seems, even in an egalitarian society.
  • Why might low status cause such stress for the Tsimane? One possibility is that status offers a greater sense of control.
  • Another is that status acts as a form of social insurance. Influential Tsimane men have more allies and food-production partners, who can be helpful in mitigating conflict, sickness and food shortage. The relative lack of such support may cause psychosocial stress.
  • It is interesting that even in industrialized societies, the status comparisons most consequential for psychosocial stress are often among individuals who live near one another or occupy the same social network, not individuals at opposite ends of the socioeconomic spectrum.
  • Those living just above the poverty line may resent welfare for those living just below it, and a millionaire may envy a multimillionaire more than he envies a billionaire.
  • The importance of relative status perceptions may have its roots in the small-scale societies of our ancestors, which were similar to that of the Tsimane. In such societies, both our political competitors and our cooperative partners were likely individuals with whom we interacted regularly.
  • As our society debates the effects of wealth inequality, the Tsimane help us understand why we care so deeply about relative social position — and why our health depends on it.
anonymous

A Bad Review Is Forever: How to Counter Online Complaints - The New York Times - 0 views

  • One of his new Slapfish restaurants, serving sustainable seafood, was hit this year with dozens of bad reviews that complained about its prices (too high) and portions (too small).
  • “You can get buried by bad reviews,” said Mr. Gruel, whose fast-casual restaurants serve food like fish tacos and lobster burgers. “So it’s a race to stop the bleeding.”
  • “Star ratings persist forever,”
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  • “Meanwhile, actual reviews can fall off the first pages of review sites. And consumers rarely read reviews older than three months.”
  • Your customers are already talking about you,” Mr. Campbell said. “So you can’t just ignore them. Anyway, businesses that engage with their customers are growing.”
  • He fears using “canned responses that aren’t personal.”
  • “The minute you see a bad review, look for a shard of truth,”
  • “I want people to know my true heart,” said Ms. Piercy, who doesn’t want to outsource her review scans either. “And I’m thankful for their feedback.”
  • “I look at the quality of the review,” she said.
kushnerha

There may be flowing water on Mars. But is there intelligent life on Earth? - 0 views

  • We may be captivated by the thought of organisms on another planet, but we seem to have lost interest in our own. The Oxford Junior Dictionary has been excising the waymarks of the living world. Adders, blackberries, bluebells, conkers, holly, magpies, minnows, otters, primroses, thrushes, weasels and wrens are now surplus to requirements.
  • past four decades, the world has lost 50% of its vertebrate wildlife. But across the latter half of this period, there has been a steep decline in media coverage
  • as many news stories broadcast by the BBC and ITV about Madeleine McCann (who went missing in 2007) as there were about the entire range of environmental issues.
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  • salty water, of the kind that so enthrals us when apparently detected on Mars, on Earth we express our appreciation with a frenzy of destruction
  • domestic demand is such that the upper reaches of many rivers disappear during the summer. Yet still we install clunky old toilets and showers that gush like waterfalls.
  • Think of what would change if we valued terrestrial water as much as we value the possibility of water on Mars. Only 3% of the water on this planet is fresh; and of that, two-thirds is frozen. Yet we lay waste to the accessible portion.
  • Coral reefs are under such pressure that most could be gone by 2050. And in our own deep space, our desire for exotic fish rips through a world scarcely better known to us than the red planet’s surface.
  • Human ingenuity is on abundant display at Nasa, which released those astounding images. But not when it comes to policy.
  • this is the way in which governments seek to resolve planetary destruction. Leave it to the conscience of consumers, while that conscience is muted and confused by advertising and corporate lies.
  • All this drilling and digging and trawling and dumping and poisoning – what is it for, anyway? Does it enrich human experience, or stifle it? A couple of weeks ago I launched the hashtag #extremecivilisation, and invited suggestions
  • Every year, clever new ways of wasting stuff are devised, and every year we become more inured to the pointless consumption of the world’s precious resources. With each subtle intensification, the baseline of normality shifts. It should not be surprising to discover that the richer a country becomes, the less its people care about their impacts on the living planet.
Javier E

New Guidelines Call for Changes in Science Education - NYTimes.com - 1 views

  • Educators unveiled new guidelines on Tuesday that call for sweeping changes in the way science is taught in the United States
  • The guidelines, known as the Next Generation Science Standards, are the first broad national recommendations for science instruction since 1996. They were developed by a consortium of 26 state governments and several groups representing scientists and teachers.
  • The focus would be helping students become more intelligent science consumers by learning how scientific work is done: how ideas are developed and tested, what counts as strong or weak evidence, and how insights from many disciplines fit together into a coherent picture of the world.
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  • Leaders of the effort said that teachers may well wind up covering fewer subjects, but digging more deeply into the ones they do cover. In some cases, traditional classes like biology and chemistry may disappear entirely from high schools, replaced by courses that use a case-study method to teach science in a more holistic way.
  • the standards are meant to do for science what a separate set of guidelines known as the Common Core is supposed to do for English and mathematics: impose and raise standards, with a focus on critical thinking and primary investigation.
  • “This is a huge deal,” said David L. Evans, the executive director of the National Science Teachers Association. “We depend on science in so many aspects of our lives. There’s a strong feeling that we need to help people understand the nature of science itself, as an intellectual pursuit.”
  • a group called Citizens for Objective Public Education, which lists officers in Florida and Kansas, distributed a nine-page letter attacking them. It warned that the standards ignored evidence against evolution, promoted “secular humanism,” and threatened to “take away the right of parents to direct the religious education of their children.”
  • In many states, extensive scientific instruction does not begin until high school. The guidelines call for injecting far more science into the middle grades, with climate change being one among many topics. In high school, students would learn in more detail about the human role in generating emissions that are altering the planetary climate.
  • While thousands of schools in the United States already teach climate change to some degree, they are usually doing it voluntarily, and often in environmental studies classes. In many more schools, the subject does not come up because students are not offered those specialized courses, and state guidelines typically do not require that the issue be raised in traditional biology or chemistry classes.
  • Outlining how the standards might change science classrooms, educators said they foresaw more use of real-world examples, like taking students to a farm or fish hatchery — perhaps repeatedly, over the course of years — to help them learn principles from biology, chemistry and physics.
Javier E

The Boston Rally and the Left's Intolerance of Free Speech - 2 views

  • I wanted to see the ways in which my internet-mediated intellectual life was dominated by assumptions that did not recognize themselves as assumptions, to understand how the perspective that did not understand itself to be a perspective had distorted my vision of the world. I wanted to better see the water in which my school of fish swims.” So he tried to find a new perspective, but still failed. He realized what I once saw. You cannot edit this stream. It edits you in the end. This is self-knowledge: “[T]he fact that so many people like me write the professional internet, the fact that the creators of the idioms and attitudes of our newsmedia and cultural industry almost universally come from a very thin slice of the American populace, is genuinely dangerous.”
  • It is — and getting more so. I just want to say this to my friend: You have checked yourself in not because you are insane, but because you tried to retain your sanity. It is America that is going nuts; and the internet is one reason why.
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