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Javier E

How Reliable Are the Social Sciences? - NYTimes.com - 3 views

  • media reports often seem to assume that any result presented as “scientific” has a claim to our serious attention. But this is hardly a reasonable view.  There is considerable distance between, say, the confidence we should place in astronomers’ calculations of eclipses and a small marketing study suggesting that consumers prefer laundry soap in blue boxes
  • A rational assessment of a scientific result must first take account of the broader context of the particular science involved.  Where does the result lie on the continuum from preliminary studies, designed to suggest further directions of research, to maximally supported conclusions of the science?
  • Second, and even more important, there is our overall assessment of work in a given science in comparison with other sciences.
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  • The core natural sciences (e.g., physics, chemistry, biology) are so well established that we readily accept their best-supported conclusions as definitive.
  • Even the best-developed social sciences like economics have nothing like this status.
  • when it comes to generating reliable scientific knowledge, there is nothing more important than frequent and detailed predictions of future events.  We may have a theory that explains all the known data, but that may be just the result of our having fitted the theory to that data.  The strongest support for a theory comes from its ability to correctly predict data that it was not designed to explain.
  • The case for a negative answer lies in the predictive power of the core natural sciences compared with even the most highly developed social sciences
  • Is there any work on the effectiveness of teaching that is solidly enough established to support major policy decisions?
  • While the physical sciences produce many detailed and precise predictions, the social sciences do not. 
  • most social science research falls far short of the natural sciences’ standard of controlled experiments.
  • Without a strong track record of experiments leading to successful predictions, there is seldom a basis for taking social scientific results as definitive.
  • Because of the many interrelated causes at work in social systems, many questions are simply “impervious to experimentation.”
  • even when we can get reliable experimental results, the causal complexity restricts us to “extremely conditional, statistical statements,” which severely limit the range of cases to which the results apply.
  • above all, we need to develop a much better sense of the severely limited reliability of social scientific results.   Media reports of research should pay far more attention to these limitations, and scientists reporting the results need to emphasize what they don’t show as much as what they do.
  • Given the limited predictive success and the lack of consensus in social sciences, their conclusions can seldom be primary guides to setting policy.  At best, they can supplement the general knowledge, practical experience, good sense and critical intelligence that we can only hope our political leaders will have.
Javier E

New Statesman - The limits of science: Martin Rees - 1 views

  • Einstein averred that “the most incomprehensible thing about the universe is that it is comprehensible”. He was right to be astonished. It seems sur­prising that our minds, which evolved to cope with life on the African savannah and haven’t changed much in 10,000 years, can make sense of phenomena far from our everyday intuitions: the microworld of atoms and the vastness of the cosmos. But our comprehension could one day “hit the buffers”. A monkey is unaware that atoms exist. Likewise, our brainpower may not stretch to the deepest aspects of reality.
  • Everything, however complicated – breaking waves, migrating birds, or tropical forests – is made up of atoms and obeys the equations of quantum physics. That, at least, is what most scientists believe, and there is no reason to doubt it. Yet there are inherent limits to science’s predictive power. Some things, like the orbits of the planets, can be calculated far into the future. But that’s atypical. In most contexts, there is a limit. Even the most fine-grained compu­tation can only forecast British weather a few days ahead.
  • even if we could build a computer with hugely superhuman processing power, which could offer an accurate simulation, that doesn’t mean that we will have the insight to understand it. Some of the “aha” insights that scientists strive for may have to await the emergence of post-human intellects.
Javier E

Truth, Lies, Politics, and the Press, in Three Acts - James Fallows - The Atlantic - 1 views

  • Both explain why the realities of modern "post-truth" politics will sooner or later force the press out of its preferred, comfortable pose of "balance," if it is to come close to doing its fundamental job of describing reality. When some people in public life are willing to lie, and to keep on lying even when the bald falseness is exposed, the press should take on an affirmative responsibility to remind readers what the "truth" is.
  • Some of the "savviest" and best-connected political journalists say that their duty is merely to recount the claims one side makes about the other, and whether or not they "work" in swinging votes. But, Rosen argues, a growing segment has concluded that "post-truth" politics requires reporters to do more than call play-by-play.
  • As a conservative myself politically, it annoys me no end to see deliberate lying and misinformation coming out where they will trash an outstanding American product and do damage to American employment just to get at Obama. That's just plain unethical.
Annie Procacini

Christopher Hitchens explains why "Religion Poisons Everything" - 1 views

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    ***Credit to Sophie Mester who showed me this
Emily Horwitz

Religion, Science And Magic Fairy Cellphones : 13.7: Cosmos And Culture : NPR - 2 views

  • Heaven and Hell. God and the Devil. For many folks these polar opposites are what religion is all about. And for many folks in science who consider themselves atheists, this is what makes religion so impossible to bear. How can the nature of the world be seen in such simplistic terms? How can such beliefs co-exist with the technologies on which we've built our everyday lives?
  • What is remarkable about the fundamentalist perspective, however, is an unwillingness to see spiritual life in the same light. Instead of seeing subtlety and complication that require a lifetime of intense dedicated effort — a genuine personal investigation of the world — to understand, everything is reduced to magic-marker outlines with unwavering, absolute answers.
  • Acknowledging that truth, in both science and religion, could be one way to raise the discussion to a plane where we might all learn something.
Dunia Tonob

Our lives are not our own. - 1 views

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    The chemicals in our brain that produce emotions.
Dunia Tonob

TED Blog | 21 untranslatable words worth spreading - 2 views

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    How does the language we speak affect the way we describe the world?
Javier E

Acupuncture, Real or Fake, Eases Pain - Well Blog - NYTimes.com - 1 views

  • Fake acupuncture appears to work just as well for pain relief as the real thing, according to a new study of patients with knee arthritis. The findings, published in the September issue of the journal Arthritis Care and Research, are the latest to suggest that a powerful but little understood placebo effect may be at work when patients report benefits from acupuncture treatment
  • The results don’t mean acupuncture doesn’t work, but they do suggest that the benefits of both real and fake acupuncture may have something to do with the way the body transmits or processes pain signals. Other studies have suggested that the prick of a needle around the area of injury or pain could create a “super-placebo” effect that alters the way the brain perceives and responds to pain.
Javier E

OUPblog » Blog Archive » While You Are/n't Sleeping - 1 views

  • In sleep the unconscious selects new experiences to save in memory, particularly new experiences that have an emotional charge.
  • If you worked hard to learn something new you will remember it better after a period of sleep than if you stay awake before you need to remember that new learning.
  • Nightmares are defined as a vivid dream with strongly negative emotion that wakes the sleeper abruptly, with a clear memory of the dream. The awakening aborts the natural process of down-regulation of negative emotion. Therefore the dream is not completed and the process will repeat until some other experience allows the downloading of the negative emotion to take place. That is why small children have more nightmares than grown-ups. To children many experiences are frightening until we develop more coping skills
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  • Is there a treatment for nightmares that keep repeating? Yes. There is a new medication that works well especially when paired with a psychotherapy that trains the person to identify what the negative emotion is in response to. What is the fear? Or the anger? Or humiliation? Once identified, the person must name the opposite emotion, and develop an image to represent that alternative. If the nightmare is one of fear of being attacked, the dreamer is instructed to create an image of the opposite emotion: for example, relief over an escape. So, to overcome a nightmare it is important that the dreamer: 1) Identifies why the nightmare was so strong that it woke them, 2) Name the opposite feeling, 3) Create an opposite image to represent that good emotion, 4) Practice that new image several times a day until it is easy to experience it at will. This image rehearsal is very successful with nightmares once the person feels “in charge”.
Javier E

Op-Ed Columnist - A Case of Mental Courage - NYTimes.com - 0 views

  • Burney’s struggle reminds one that character is not only moral, it is also mental. Heroism exists not only on the battlefield or in public but also inside the head, in the ability to face unpleasant thoughts. She lived at a time when people were more conscious of the fallen nature of men and women. People were held to be inherently sinful, and to be a decent person one had to struggle against one’s weakness.
  • much of the media, and even the academy, is more geared toward pleasuring consumers, not putting them on some arduous character-building regime.
  • Charlie Munger of Berkshire Hathaway once gave a speech called “The Psychology of Human Misjudgment.” He and others list our natural weaknesses: We have confirmation bias; we pick out evidence that supports our views. We are cognitive misers; we try to think as little as possible. We are herd thinkers and conform our perceptions to fit in with the group. But, in general, the culture places less emphasis on the need to struggle against one’s own mental feebleness. Today’s culture is better in most ways, but in this way it is worse.
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  • there’s a metacognition deficit. Very few in public life habitually step back and think about the weakness in their own thinking and what they should do to compensate.
  • Of the problems that afflict the country, this is the underlying one.
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    Today's culture abets mental feebleness.
Javier E

A Reply To Jonathan Chait On Stimulus | The New Republic - 0 views

  • It is certainly true that a large majority of professional economists accept the view that “increasing spending or reducing taxes temporarily increases economic growth”—but that is very far from claiming that disputing it is largely a political campaign.
  • in a genuinely scientific field which has accepted a predictive rule as valid to the point that there is a true consensus—such that the only reason for refusal to accept it is crankery or, in Chait’s terms, “politics”—you don’t usually see: several full professors at the top two departments in the subject, when speaking directly in their area of research expertise, challenge it; 10 percent of all practitioners in the field refuse to accept it; and the two leading global general circulation publications in field running op-eds questioning it.
  • A great many leading economists may accept the proposition that enough stimulus spending will probably cause at least some increase in output for a short period of time in some circumstances, yet are still uncomfortable with the kind of stimulus spending strategy that is the actual subject of current political debate. In 2009, James Buchanan (1986 Nobel Laureate in Economics), Edward Prescott (2004 Nobel Laureate in Economics), and Vernon Smith (2002 Nobel Laureate in Economics) promulgated this statement: “Notwithstanding reports that all economists are now Keynesians and that we all support a big increase in the burden of government, we do not believe that more government spending is a way to improve economic performance.”
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  • It is nerdy-sounding, but I believe critical to this discussion, to distinguish between measurement and knowledge. I made a very strong claim about measurement, and a very specific claim about knowledge. I claim that we cannot usefully measure the effect of the stimulus program launched in 2009 at all.
  • All potentially useful predictions made about the output impact of the stimulus program are non-falsifiable. Failure of predictions can be simply justified by this sort of ad hoc explanation after the fact.
  • This argument will always degenerate back into endlessly dueling regressions, because there is no ability to adjudicate among them via experiment.
  • It simply means that we have no scientific knowledge about this topic. Macroeconomic assertions about the effect of a proposed stimulus policy are not valueless, but despite their complex mathematical justifications, do not have standing as knowledge that can trump common sense, historical reasoning, and so on in the same way that a predictive rule that has been verified through experimental testing can.
  • When using stimulus to ameliorate the economic crisis, we are like primitive tribesmen using herbs to treat an infection, and we should not allow ourselves to imagine that we are using antibiotics that have been proven through clinical trials. This should not imply merely a different feeling about the same actions, but should rationally lead us to greater circumspection.
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    An incisive analysis of knowledge claims in economics, and Keynesian approaches.
Javier E

Building a Nation of Know-Nothings - NYTimes.com - 1 views

  • It’s not just that 47 percent of Republicans believe the lie that Obama is a Muslim, or that 27 percent in the party doubt that the president of the United States is a citizen. But fully half of them believe falsely that the big bailout of banks and insurance companies under TARP was enacted by Obama, and not by President Bush.
  • Take a look at Tuesday night’s box score in the baseball game between New York and Toronto. The Yankees won, 11-5. Now look at the weather summary, showing a high of 71 for New York. The score and temperature are not subject to debate. Yet a president’s birthday or whether he was even in the White House on the day TARP was passed are apparently open questions. A growing segment of the party poised to take control of Congress has bought into denial of the basic truths of Barack Obama’s life. What’s more, this astonishing level of willful ignorance has come about largely by design, and has been aided by a press afraid to call out the primary architects of the lies.
  • It would be nice to dismiss the stupid things that Americans believe as harmless, the price of having such a large, messy democracy.
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  • So what if one-in-five believe the sun revolves around the earth, or aren’t sure from which country the United States gained its independence? But false belief in weapons of mass-destruction led the United States to a trillion-dollar war. And trust in rising home value as a truism as reliable as a sunrise was a major contributor to the catastrophic collapse of the economy. At its worst extreme, a culture of misinformation can produce something like Iran, which is run by a Holocaust denier.
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    A major part of the US population now accepts denies basic facts, influenced by a deliberate partisan misinformation campaign tolerated by the press.
Javier E

Does Your Language Shape How You Think? - NYTimes.com - 1 views

  • it turns out that the colors that our language routinely obliges us to treat as distinct can refine our purely visual sensitivity to certain color differences in reality, so that our brains are trained to exaggerate the distance between shades of color if these have different names in our language.
  • some languages, like Matses in Peru, oblige their speakers, like the finickiest of lawyers, to specify exactly how they came to know about the facts they are reporting. You cannot simply say, as in English, “An animal passed here.” You have to specify, using a different verbal form, whether this was directly experienced (you saw the animal passing), inferred (you saw footprints), conjectured (animals generally pass there that time of day), hearsay or such. If a statement is reported with the incorrect “evidentiality,” it is considered a lie.
  • For many years, our mother tongue was claimed to be a “prison house” that constrained our capacity to reason. Once it turned out that there was no evidence for such claims, this was taken as proof that people of all cultures think in fundamentally the same way. But surely it is a mistake to overestimate the importance of abstract reasoning in our lives. After all, how many daily decisions do we make on the basis of deductive logic compared with those guided by gut feeling, intuition, emotions, impulse or practical skills? The habits of mind that our culture has instilled in us from infancy shape our orientation to the world and our emotional responses to the objects we encounter, and their consequences probably go far beyond what has been experimentally demonstrated so far; they may also have a marked impact on our beliefs, values and ideologies.
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    Fascinating follow-up to Sapir-Whorf.
Javier E

We've Seen This Movie Before - NYTimes.com - 0 views

  • If the bad act is committed by a member of a group you wish to demonize, attribute it to a community or a religion and not to the individual. But if the bad act is committed by someone whose profile, interests and agendas are uncomfortably close to your own, detach the malefactor from everything that is going on or is in the air (he came from nowhere) and characterize him as a one-off, non-generalizable, sui generis phenomenon.
  • The only thing more breathtaking than the effrontery of the move is the ease with which so many fall in with it. I guess it’s because both those who perform it and those who eagerly consume it save themselves the trouble of serious thought.
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    Attribution bias at work.
Javier E

Scientists Square Off on Evolutionary Value of Helping Relatives - NYTimes.com - 0 views

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    How a scientific revolution happens.
Javier E

About My Job: The Mathematician - The Daily Dish | By Andrew Sullivan - 0 views

  • For many people, math seems like an impenetrable subject that only a chosen few are able to understand
  • Most people also don't have a very good idea of what exactly it is that a mathematician does
  • students are taught a collection of algorithms for solving problems, but are rarely given insights into how these algorithms developed, what problems they were originally used to solve, or how different techniques are related.
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  • when students become stuck on a problem, they are often too eager to throw up their hands in frustration, rather than buckle down and try to think creatively (in the words of Dan Meyer, students often lack patient problem solving skills).  Many students don't even think of mathematics as a subject that requires creativity
  • a website called Math Goes Pop!.
Javier E

Tell all the truth slant - Philosophy and Life - 1 views

  • “Tell all the truth, but tell it slant,” wrote the poet Emily Dickinson: “Success in circuit lies.” The advice is itself a truth, a commendation in the art of looking sideways.
  • Dickinson lived in an age when it was becoming impossible to find truth straightforwardly,
  • What is striking about Dickinson, though, is that she both experienced the darkness of that doubt, and found a way to transform it into an experience that produced meaning. It’s all about the pursuit of the circuitous.
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  • That her medium was poetry is no mere detail. It is almost the whole story. Poetry not only allows her to express herself – her desire for consolation, her anxiety about what’s disappearing. It is also the form of writing par excellence that can keep an eye open for what is peripheral. It can discern truths that words otherwise struggle to articulate. It glimpses, and hopes.
  • to know Socrates was to know someone who sought all the truth, and in so doing, realised it mostly lies out of sight.
  • Moses too does not see anything directly. He apparently doesn’t see anything at all. Instead, an oblique experience is granted to him. It is better described as a kind of unknowing, rather than knowing. He must leave behind what he has previously observed because this seeing consists in not seeing. That which is sought transcends all knowledge.
  • What she realises is that the truth which is beyond us, which is discerned only indirectly, is the only truth that is truly worth seeking. That which we can readily grasp and manipulate is too easy for us. It’s humdrum. It leaves life too small for us, the creature with an eye for the transcendent. But look further, and what you are offered is what she calls truth’s ‘superb surprise’. That’s why success lies in circuit. Our humanity is spoken to, from a direction – a source – that we had not expected. And our humanity expands as a result.
Javier E

Stephen Hawking on God, Science and the Origins of the Universe - WSJ.com - 0 views

  • As recent advances in cosmology suggest, the laws of gravity and quantum theory allow universes to appear spontaneously from nothing. Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the universe going.Our universe seems to be one of many, each with different laws. That multiverse idea is not a notion invented to account for the miracle of fine tuning. It is a consequence predicted by many theories in modern cosmology. If it is true it reduces the strong anthropic principle to the weak one, putting the fine tunings of physical law on the same footing as the environmental factors, for it means that our cosmic habitat—now the entire observable universe—is just one of many. Each universe has many possible histories and many possible states. Only a very few would allow creatures like us to exist. Although we are puny and insignificant on the scale of the cosmos, this makes us in a sense the lords of creation.
Javier E

Burke's Corner: Science, philosophy and humility - Hawking rejects all three - 0 views

  • In his failure to exercise modesty in his pursuit of scientific knowledge, Hawking makes a particularly startling claim - that "philosophy is dead". From Plato and Aristotle to Maimonides and Aquinas to Kant and Hegel, Hawking dismisses how the human mind across cultures and millenia has reflected on transcendence and humanity's place in a vast universe. Hawking's lack of humility before this endeavour is staggering. In her Absence of Mind, Marilynne Robinson rightly states that this approach to science excludes "the whole enterprise of metaphysical thought", despite metaphysical reflection being a defining characteristic of the human experience.
  • mathematician Eric Priest compares Hawking's claims with the humility that should be at the core of the pursuit of scientific knowledge:As a scientist, you are continually questioning, rarely coming up with a definitive answer. The limitations of your own knowledge and expertise together with the beauty and mystery of life and the universe often fill you with a sense of profound humility. Thus, unequivocal assertions are not part of a genuine scientific quest.
Javier E

The Spoils of Happiness - NYTimes.com - 0 views

  • Happiness is more like knowledge than like belief. There are lots of things we believe but don’t know. Knowledge is not just up to you, it requires the cooperation of the world beyond you — you might be mistaken. Still, even if you’re mistaken, you believe what you believe. Pleasure is like belief that way. But happiness isn’t just up to you. It also requires the cooperation of the world beyond you. Happiness, like knowledge, and unlike belief and pleasure, is not a state of mind.
  • If happiness is not a state of mind, if happiness is a kind of tango between your feelings on one hand and events and things in the world around you on the other, then there’s the possibility of error about whether you’re happy. If you believe you’re experiencing pleasure or, perhaps especially, pain, then, presumably, you are. But the view of happiness here allows that “you may think you’re happy, but you’re not.”
  • One especially apt way of thinking about happiness — a way that’s found already in the thought of Aristotle — is in terms of “flourishing.” Take someone really flourishing in their new career, or really flourishing now that they’re off in college. The sense of the expression is not just that they feel good, but that they’re, for example, accomplishing some things and taking appropriate pleasure in those accomplishments. If they were simply sitting at home playing video games all day, even if this seemed to give them a great deal of pleasure, and even if they were not frustrated, we wouldn’t say they were flourishing. Such a life could not in the long term constitute a happy life. To live a happy life is to flourish.
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  • Happiness is harder to get. It’s enjoyed after you’ve worked for something, or in the presence of people you love, or upon experiencing a magnificent work of art or performance — the kind of state that requires us to engage in real activities of certain sorts, to confront real objects and respond to them.
  • viewing happiness as subject to external influence limits our control — not just in the sense that whether you get to live happily might depend on how things go, but also in the sense that what happiness is is partly a matter of how things beyond you are. We might do everything we can to live happily — and have everything it takes on our part to be happy, all the right thoughts and feelings — and yet fall short, even unbeknownst to us.
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