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kortanekev

Your Color Red Really Could Be My Blue | Color Perception - 0 views

  • Anyone with normal color vision agrees that blood is roughly the same color as strawberries, cardinals and the planet Mars. That is, they're all red. But could it be that what you call "red" is someone else's "blue"?
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    An example of personal knowledge vs. shared knowledge-- e.g. is my green someone else's yellow? (Evie Kortanek 9/21/16)
Javier E

What We Are Hearing About Clinton and Trump - The New York Times - 0 views

  • With a few exceptions, namely Mr. Trump’s views on immigration, Americans have little recall of reading, hearing or seeing information about the policies of the presidential candidates or their positions on issues. Our research shows instead that in the case of Mr. Trump, Americans monitor his statements, his accusations, his travel and his events, and in the case of Mrs. Clinton they report mainly hearing about her past behavior, her character and, most recently, her health.
  • The continuing research, conducted by Gallup in conjunction with University of Michigan and Georgetown, found that since early July more than seven in 10 Americans read, saw or heard something about at least one of the presidential candidates in the days before the daily interviews. On some days that number rises to over 80 percent and has never, even on weekends, fallen below 60 percen
  • Since July we have asked more than 30,000 Americans to say exactly what it was they read, saw or heard about the two major party candidates over the past several days. The type of information getting through to Americans varies significantly depending on whether the candidate in question is Mr. Trump or Mrs. Clinton
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  • If Mr. Trump talks about Muslim parents and their son who was killed in action, that’s what the public remembers. If he goes to Mexico or Louisiana, that’s what they recall reading or hearing about him. If Mr. Trump calls President Obama the founder of the Islamic State, “ISIS” moves to the top of the list of what Americans tell us they are hearing about the Republican candidate.
  • it may not matter exactly why Americans are so likely to recall reading about Mrs. Clinton’s email situation week after week. Its looming prominence in the public’s mind has become a reality, and it has the effect of superseding public awareness of her policy speeches and statements about issues.
  • we can assume he wants his statements and actions to be seen and heard, to attract attention. The evidence is clear that they are. The public may be getting no more than a superficial understanding of Mr. Trump’s positions on key issues or how he would implement them as laws if he is elected, but the public clearly is repeating back to us what he intends for it to hear.
  • By contrast, it’s clear that Mrs. Clinton and her campaign team have not wanted her handling of emails to dominate what Americans have been taking away from her campaign over the past two months
  • What Americans recall hearing about Mrs. Clinton is significantly less varied. Specifically — and to an extraordinary degree — Americans have consistently told us that they are reading and hearing about her handling of emails
  • the public may be learning about the candidates’ temperament, character, personality and health issues, but from what they tell us, Americans aren’t getting much in the way of real substance.
  • The moderators of the coming series of debates will most likely focus directly on the candidates’ positions on issues. This may shift what Americans tell us they are learning about the candidates, and if so, it could signal a significant upgrade in the way the process is working. But that also means that a lot still depends on the candidates themselves and how they end up shaping the contours of the debates
sissij

The Wave (2008 film) - Wikipedia, the free encyclopedia - 1 views

  • Ron Jones's "Third Wave" experiment, which took place at a Californian school in 1967. Because his students did not understand how something like national socialism could even happen, he founded a totalitarian, strictly-organized "movement" with harsh punishments that was led by him autocratically. The intricate sense of community led to a wave of enthusiasm not only from his own students, but also from students from other classes who joined the program later. Jones later admitted to having enjoyed having his students as followers. To eliminate the upcoming momentum, Jones aborted the project on the fifth day and showed the students the parallels towards the Nazi youth movements.[3][4]
  • “Therein lies the great danger. It is an interesting fact that we always believe that what happens to others would never happen to us. We blame others, for example the less educated or the East Germans etc. However, in the Third Reich the house caretaker was just as fascinated by the movement as was the intellectual.”[10]
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    I think this experiment is very interesting because it shows a flaw in human thinking that we are always progressing. However, just like the quote says: "Barbarism is not the inheritance of our pre-history. It is the companion that dogs our every step." The film "Die Welle", based on this experiment, is also very interesting and worth-watching. --Sissi (Sept 17, 2016)
Javier E

Concern Over Colin Powell's Hacked Emails Becomes a Fear of Being Next - The New York T... - 0 views

  • The latest hack could well spur a new rash of email deletions across the country as millions of people scan their sent mail for anything compromising, humiliating or career-destroying. It adds to the sense that everyone is vulnerable.
  • “I think more and more people are realizing that there isn’t a thing you can say in an email that isn’t likely to be hackable or discoverable at some later point,”
  • Washington may be behind other big cities in learning that lesson. Bankers on Wall Street have favored very brief emails since their conversations were splashed across front pages because of lawsuits filed after the financial crisis. In 2010, Goldman Sachs executives used the acronym “LDL,” for “let’s discuss live,” when a conversation turned at all sensitive.
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  • Similar precautions have been common in Silicon Valley since a 2009 Chinese state cyberattack on servers at Google and other tech companies.
  • Hank Paulson, a former Goldman Sachs chief executive, refuses to use email. Ben S. Bernanke, a former chairman of the Federal Reserve, once set up an email account under the pseudonym Edward Quince in the hopes of greater privacy.
  • In Hollywood, a breach at Sony Pictures in 2014 spilled out gossipy secrets and persuaded film crews, actors and executives alike to adopt security measures they once considered paranoid. Studios have turned to a new class of companies with names like WatchDox that wrap screenplays with encryption, passwords and monitoring systems that can track who has access to confidential files.
fischerry

Belief versus Knowledge - 2 views

  • Knowledge has been defined as "A clear perception of a truth or fact, erudition; skill from practice." Also "to know, viz.; To perceive with certainty, to understand clearly, to have experience of." On the other hand, Belief is an "Assent to anything proposed or declared, and its acceptance as fact by reason of the authority from whence it proceeds, apart from personal knowledge; faith; the whole body of tenets held by any faith; a creed; a conviction."
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    This is an interesting article because sometimes I have trouble wrapping my head around the difference, especially when I think of personal knowledge vs. belief. - Ryan (9/14/16)
kortanekev

Allegory of the Cave - 1 views

  • Such prisoners would mistake appearance for reality. They would think the things they see on the wall (the shadows) were real; they would know nothing of the real causes of the shadows
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    Human perception vs. reality as shown in Plato's allegory of the cave.  (the ability to make knowledge claims of the "shadows," but what's casting them?)  - Evie (9/12/16)
Javier E

Robert Reich: A single-payer health care system is inevitable - Salon.com - 1 views

  • In a nutshell, the more sick people and the fewer healthy people a private for-profit insurer attracts, the less competitive that insurer becomes relative to other insurers that don’t attract as high a percentage of the sick but a higher percentage of the healthy.
  • If insurers had no idea who’d be sick and who’d be healthy when they sign up for insurance (and keep them insured at the same price even after they become sick), this wouldn’t be a problem. But they do know — and they’re developing more and more sophisticated ways of finding out.
  • Health insurers spend lots of time, effort and money trying to attract people who have high odds of staying healthy (the young and the fit) while doing whatever they can to fend off those who have high odds of getting sick (the older, infirm and the unfit).
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  • As a result we end up with the most bizarre health-insurance system imaginable: One ever better designed to avoid sick people.
  • America’s giant health insurers are now busily consolidating into ever-larger behemoths.
  • In reality, they’re becoming huge to get more bargaining leverage over everyone they do business with — hospitals, doctors, employers, the government and consumers. That way they make even bigger profits.
  • researchers found, for example, that after Aetna merged with Prudential HealthCare in 1999, premiums rose 7 percent higher than had the merger not occurred.
  • The real choice in the future is either a hugely expensive for-profit oligopoly with the market power to charge high prices even to healthy people and stop insuring sick people.
  • Or else a government-run single payer system — such as is in place in almost every other advanced economy — dedicated to lower premiums and better care for everyone.
Javier E

This Is Not a Market | Dissent Magazine - 0 views

  • Given how ordinary people use the term, it’s not surprising that academic economists are a little vague about it—but you’ll be glad to hear that they know they’re being vague. A generation of economists have criticized their colleagues’ inability to specify what a “market” actually is. George Stigler, back in 1967, thought it “a source of embarrassment that so little attention has been paid to the theory of markets.” Sociologists agree: according to Harrison White, there is no “neoclassical theory of the market—[only] a pure theory of exchange.” And Wayne Baker found that the idea of the market is “typically assumed—not studied” by most economists, who “implicitly characterize ‘market’ as a ‘featureless plane.’
  • When we say “market” now, we mean nothing particularly specific, and, at the same time, everything—the entire economy, of course, but also our lives in general. If you can name it, there’s a market in it: housing, education, the law, dating. Maybe even love is “just an economy based on resource scarcity.”
  • The use of markets to describe everything is odd, because talking about “markets” doesn’t even help us understand how the economy works—let alone the rest of our lives. Even though nobody seems to know what it means, we use the metaphor freely, even unthinkingly. Let the market decide. The markets are volatile. The markets responded poorly. Obvious facts—that the economy hasn’t rebounded after the recession—are hidden or ignored, because “the market” is booming, and what is the economy other than “the market”? Well, it’s lots of other things. We might see that if we talked about it a bit differently.
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  • For instance, we might choose a different metaphor—like, say, the traffic system. Sounds ridiculous? No more so than the market metaphor. After all, we already talk about one important aspect of economic life in terms of traffic: online activity. We could describe it in market terms (the market demands Trump memes!), but we use a different metaphor, because it’s just intuitively more suitable. That last Trump meme is generating a lot of traffic. Redirect your attention as required.
  • We don’t know much about markets, because we don’t deal with them very often. But most of us know plenty about traffic systems: drivers will know the frustration of trying to turn left onto a major road, of ceaseless, pointless lane-switching on a stalled rush-hour freeway, but also the joys of clear highways.
  • We know the traffic system because, whether we like it or not, we are always involved in it, from birth
  • As of birth, Jean is in the economy—even if s/he rarely goes to a market. You can’t not be an economic actor; you can’t not be part of the transport system.
  • Consider also the composition of the traffic system and the economy. A market, whatever else it is, is always essentially the same thing: a place where people can come together to buy and sell things. We could set up a market right now, with a few fences and a sign announcing that people could buy and sell. We don’t even really need the fences. A traffic system, however, is far more complex. To begin with, the system includes publicly and privately run elements: most cars are privately owned, as are most airlines
  • If we don’t evaluate traffic systems based on their size, or their growth, how do we evaluate them? Mostly, by how well they help people get where they want to go. The market metaphor encourages us to think that all economic activity is motivated by the search for profit, and pursued in the same fashion everywhere. In a market, everyone’s desires are perfectly interchangeable. But, while everybody engages in the transport system, we have no difficulty remembering that we all want to go to different places, in different ways, at different times, at different speeds, for different reasons
  • Deciding how to improve the traffic system, how to expand people’s opportunities, is obviously a question of resource allocation and prioritization on a scale that private individuals—even traders—cannot influence on their own. That’s why government have not historically trusted the “magic of the markets” to produce better opportunities for transport. We intuitively understand that these decisions are made at the level of mass society and public policy. And, whether you like it or not, this is true for decisions about the economy as well.
  • Thinking of the economy in terms of the market—a featureless plane, with no entry or exit costs, little need for regulation, and equal opportunity for all—obscures this basic insight. And this underlying misconception creates a lot of problems: we’ve fetishized economic growth, we’ve come to distrust government regulation, and we imagine that the inequalities in our country, and our world, are natural or justified. If we imagine the economy otherwise—as a traffic system, for example—we see more clearly how the economy actually works.
  • We see that our economic life looks a lot less like going to “market” for fun and profit than it does sitting in traffic on our morning commute, hoping against hope that we’ll get where we want to go, and on time.
Javier E

A New Understanding of How Movement Decreases Stress - The Atlantic - 0 views

  • If stress is controlled by these few cortical areas—the part of the brain that deals in high-level executive functioning, our beliefs and existential understandings of ourselves—why would any sort of body movement play a part in decreasing stress?
  • Pittsburgh neuroscientists showed that they have discovered a discrete, elaborate network in the cerebral cortex that controls the adrenal medulla. It seems that the connections between the brain and the adrenal medulla are much more elaborate than previously understood. Complex networks throughout the primary sensory and motor cortices are tied directly to our stress responses.
  • “This is suggesting a much more decentralized process,” said Bruno of the findings. He was not involved in the study.“You have lots of different circuits built on top of one another, and they’re all feeding back to one of our most primitive and primordial response systems. They've really shown that stress is controlled by more than the traditional high-level cognitive areas. I think that’s a big deal.
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  • Rabies moves at a predictable rate, replicating every eight to 10 hours, moving rapidly through chains of neurons and revealing a network. The researchers could allow the virus to move up the nervous system and reach the brain but could sacrifice the monkey before it showed any symptoms of infection.
  • When the virus has had enough time to travel a predictable distance, the researchers anesthetize the animal, wash out its blood, perfuse the central nervous system with fixatives, and use antibodies to detect where the virus has spread. The kills were timed to various stages to create a map. By the time you’ve gone through several sets of synapses that mapping is an enormous task. There’s an exponential increase in the number of neurons.
  • the researchers were astounded at what they saw. The motor areas in the brain connect to the adrenal glands. In the primary motor cortex of the brain, there’s a map of the human body—areas that correspond to the face, arm, and leg area, as well as a region that controls the axial body muscles (known to many people now as “the core”).
  • “Something about axial control has an impact on stress responses,” Strick reasons. “There’s all this evidence that core strengthening has an impact on stress. And when you see somebody that's depressed or stressed out, you notice changes in their posture. When you stand up straight, it has an effect on how you project yourself and how you feel.  Well, lo and behold, core muscles have an impact on stress. And I suspect that if you activate core muscles inappropriately with poor posture, that’s going to have an impact on stress.”
  • “These neural pathways might explain our intuitive sense for why there are many different strategies for coping with stress,” said Bruno. “I like the examples they give in the paper—that maybe this is why yoga and pilates are so successful. But there are lots of other things where people talk about mental imagery and all sorts of other ways that people deal with stress. I think having so many neural pathways having direct lines to the stress control system, that’s really interesting.”
  • Bruno specializes more in sensory neuroscience, so he read a more into the findings in the primary somatosensory cortex. Some of these tactile areas in the brain seem to be providing as much input to the adrenal medulla as the cortical areas. “To me that's really new and interesting,” said Bruno. “It might explain why certain sensations we find very relaxing or stressful.”
  • “It's not clear to me—from our work, and from their work—that what we call motor cortex is really motor cortex,” he said. “Maybe the primary sensory cortex is doing something more than we thought. When I see results like these, I go, hm, maybe these areas aren’t so simple.”
  • With this come implications for what’s currently known as “psychosomatic illness”—how the mind has an impact over organ functions. The name tends to have a bad connotation. The notion that this mind-body connection isn’t really real; that psychosomatic illnesses are “all in your head.” Elaborate connections like this would explain that, yes, it is all in your head. The fact that cortical areas in the brain that have multi-synaptic connections that control organ function could strip the negative connotations
  • As he put it, “How we move, think, and feel have an impact on the stress response through real neural connections.”
Javier E

The Virtues of Reality - The New York Times - 1 views

  • SINCE the 1990s, we’ve seen two broad social changes that few observers would have expected to happen together.
  • First, youth culture has become less violent, less promiscuous and more responsible. American childhood is safer than ever before. Teenagers drink and smoke less than previous generations. The millennial generation has fewer sexual partners than its parents, and the teen birthrate has traced a two-decade decline. Violent crime — a young person’s temptation — fell for 25 years before the recent post-Ferguson homicide spike. Young people are half as likely to have been in a fight than a generation ago. Teen suicides, binge drinking, hard drug use — all are down.
  • But over the same period, adulthood has become less responsible, less obviously adult. For the first time in over a century, more 20-somethings live with their parents than in any other arrangement. The marriage rate is way down, and despite a high out-of-wedlock birthrate American fertility just hit an all-time low. More and more prime-age workers are dropping out of the work force — men especially, and younger men more so than older men, though female work force participation has dipped as well.
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  • I want to advance a technology-driven hypothesis: This mix of youthful safety and adult immaturity may be a feature of life in a society increasingly shaped by the internet’s virtual realities.
  • It is easy to see how online culture would make adolescent life less dangerous. Pornography to take the edge off teenage sexual appetite. Video games instead of fisticuffs or contact sports as an outlet for hormonal aggression. (Once it was feared that porn and violent media would encourage real-world aggression; instead they seem to be replacing it.) Sexting and selfie-enabled masturbation as a safer alternative to hooking up. Online hangouts instead of keggers in the field. More texting and driving, but less driving — one of the most dangerous teen activities — overall.
  • The question is whether this substitution is habit-forming and soul-shaping, and whether it extends beyond dangerous teen behavior to include things essential to long-term human flourishing — marriage, work, family, all that old-fashioned “meatspace” stuff.
  • It wasn’t so long ago that people worried about a digital divide, in which online access would be a luxury good that left the bottom half behind. But if anything, the virtual world looks more like an opiate for the masses
  • trends in the marketplace — ever-more-customized pornography, virtual realities that feel more and more immersive, devices and apps customized for addictive behavior — seem likely to overwhelm most attempts to enjoy the virtual only within limits.
  • Patricia Snow (yes, even columnists have mothers), in an essay for First Things earlier this year, suggested that any effective resistance to virtual reality’s encroachments would need to be moral and religious, not just pragmatic and managerial
Javier E

History News Network | Why Historians Need Imagination - 2 views

  • There are two types of imagination: Fantasy-directed imagination, and Reality-directed imagination.
  • Fantasy-directed imagination is aimed at depicting a scenario that goes beyond reality. An example of fantasy-directed imagination would be the creation of Mickey Mouse.
  • Reality-directed imagination, on the other hand, is aimed at depicting a scenario that reflectsreality, whether as it is known at present or as it is known to have existed in the past. An example of reality-directed imagination would be the study of Napoleon.
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  • Reality-directed imagination, for its part, endeavours to re-create, in the intellectual realm, actions and events that have existed or have taken place, which we may have plenty or partial information about.
  • Reality-directed imagination is thus a means to retain a solid sense of reality rather than to submerge into the everlasting landscape of fantasy. We imagine what was and try to afford it life.  
  • Without reality-directed imagination, on the other hand, the study of history would be well-nigh impossible.
  • By resorting to reality-directed imagination we are able intellectually to disconnect ourselves from the present; to visualize, like a landscape gradually making its appearance as we move backwards in time, the setting in which an event occurred or the personal features of an individual we follow. We are able emotionally to connect ourselves to the prevailing conditions or to a person's thoughts.
  • In the study of history we make use of reality-directed imagination as we depict in our minds the characters of individuals or the nature of events. We even try to fill the gaps by resorting to our imagination ever vigilant not to lose sight of reality as it was. In other words, we attempt to imagine the unknown by resorting to the known.
  • Without imagination as a study-device, the learning of history becomes well-nigh impossible, for the information furnished to us is rendered unintelligible. We are unable to relate to it in any meaningful manner. We assess it in a mechanical way, devoid of image, sound and feel. Our attempt to understand it leads to a dead-end for we cannot leap forward from the stale fact before us and relate it to other facts beyond it.
  • Without imagination we cannot compare, distinguish and separate; we cannot know the difference between the particular and the general. In order to study history we need to avoid the mechanical, on the one hand, and the fantastic, on the other. In other words, we ought to eschew both lack of imagination and fantasy-directed imagination; the first does not allow us to proceed forward while the latter leads us to the realm of the unreal.
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