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dicindioha

The Neuroscience of Illusion - Scientific American - 0 views

www.scientificamerican.com/...the-neuroscience-of-illusion

shared by dicindioha on 15 Jan 17 - No Cached
  • It is a fact of neuroscience that everything we experience is a figment of our imagination. Although our sensations feel accurate and truthful, they do not necessarily reproduce the physical reality of the outside world.
    • dicindioha
      dicindioha on 15 Jan 17
       
      I find it interesting that a part of science, that studies the brain, says it is a fact that reality is not what we perceive. This is a science of showing humans that the way we see the world comes from our own brains. Learning these things through neuroscience probably made other scientists want to move our progress of biology and other sciences even more forward to try and gain a better look at the world. Perception seems to be another problem on top of never being able to come to a proof of science.
  • In other words, the real and the imagined share a physical source in the brain. So take a lesson from Socrates: “All I know is that I know nothing.”
    • dicindioha
      dicindioha on 15 Jan 17
       
      This is a humorous quote, and although maybe a bit extreme, it reflects somewhat of the way I felt after our recent discussions about how what we know in science is just a theory that has not been disproved yet.
  • One of the most important tools used by neuroscientists to understand how the brain creates its sense of reality is the visual illusion. Historically, artists as well as researchers have used illusions to gain insights into the inner workings of the visual system.
    • dicindioha
      dicindioha on 15 Jan 17
       
      A way of studying the brain is tricking it.
  • ...1 more annotation...
  • Because of this disconnect between perception and reality, visual illusions demonstrate the ways in which the brain can fail to re-create the physical world.
    • dicindioha
      dicindioha on 15 Jan 17
       
      I like that the concepts we talk about in TOK, or what I think of as a course about theories and knowledge, come up in areas of science. Then this translates to how I feel as if I trust science very much, and how this is okay, but I must remember that what is shown to the public is affected by the scientific community
Javier E

The decline effect and the scientific method : The New Yorker - 3 views

www.newyorker.com/...101213fa_fact_lehrer

science empiricism philosophy scientific method decline research statistics method bias truth

shared by Javier E on 17 Jun 12 - Cached
  • The test of replicability, as it’s known, is the foundation of modern research. Replicability is how the community enforces itself. It’s a safeguard for the creep of subjectivity. Most of the time, scientists know what results they want, and that can influence the results they get. The premise of replicability is that the scientific community can correct for these flaws.
  • But now all sorts of well-established, multiply confirmed findings have started to look increasingly uncertain. It’s as if our facts were losing their truth: claims that have been enshrined in textbooks are suddenly unprovable.
  • This phenomenon doesn’t yet have an official name, but it’s occurring across a wide range of fields, from psychology to ecology.
  • ...39 more annotations...
  • If replication is what separates the rigor of science from the squishiness of pseudoscience, where do we put all these rigorously validated findings that can no longer be proved? Which results should we believe?
  • Schooler demonstrated that subjects shown a face and asked to describe it were much less likely to recognize the face when shown it later than those who had simply looked at it. Schooler called the phenomenon “verbal overshadowing.”
  • The most likely explanation for the decline is an obvious one: regression to the mean. As the experiment is repeated, that is, an early statistical fluke gets cancelled out. The extrasensory powers of Schooler’s subjects didn’t decline—they were simply an illusion that vanished over time.
  • yet Schooler has noticed that many of the data sets that end up declining seem statistically solid—that is, they contain enough data that any regression to the mean shouldn’t be dramatic. “These are the results that pass all the tests,” he says. “The odds of them being random are typically quite remote, like one in a million. This means that the decline effect should almost never happen. But it happens all the time!
  • this is why Schooler believes that the decline effect deserves more attention: its ubiquity seems to violate the laws of statistics
  • In 2001, Michael Jennions, a biologist at the Australian National University, set out to analyze “temporal trends” across a wide range of subjects in ecology and evolutionary biology. He looked at hundreds of papers and forty-four meta-analyses (that is, statistical syntheses of related studies), and discovered a consistent decline effect over time, as many of the theories seemed to fade into irrelevance.
  • Jennions admits that his findings are troubling, but expresses a reluctance to talk about them
  • publicly. “This is a very sensitive issue for scientists,” he says. “You know, we’re supposed to be dealing with hard facts, the stuff that’s supposed to stand the test of time. But when you see these trends you become a little more skeptical of things.”
  • Sterling saw that if ninety-seven per cent of psychology studies were proving their hypotheses, either psychologists were extraordinarily lucky or they published only the outcomes of successful experiments.
  • Jennions, similarly, argues that the decline effect is largely a product of publication bias, or the tendency of scientists and scientific journals to prefer positive data over null results, which is what happens when no effect is found. The bias was first identified by the statistician Theodore Sterling, in 1959, after he noticed that ninety-seven per cent of all published psychological studies with statistically significant data found the effect they were looking for
  • While publication bias almost certainly plays a role in the decline effect, it remains an incomplete explanation. For one thing, it fails to account for the initial prevalence of positive results among studies that never even get submitted to journals. It also fails to explain the experience of people like Schooler, who have been unable to replicate their initial data despite their best efforts.
  • One of his most cited papers has a deliberately provocative title: “Why Most Published Research Findings Are False.”
  • suspects that an equally significant issue is the selective reporting of results—the data that scientists choose to document in the first place. Palmer’s most convincing evidence relies on a statistical tool known as a funnel graph. When a large number of studies have been done on a single subject, the data should follow a pattern: studies with a large sample size should all cluster around a common value—the true result—whereas those with a smaller sample size should exhibit a random scattering, since they’re subject to greater sampling error. This pattern gives the graph its name, since the distribution resembles a funnel.
  • after Palmer plotted every study of fluctuating asymmetry, he noticed that the distribution of results with smaller sample sizes wasn’t random at all but instead skewed heavily toward positive results. Palmer has since documented a similar problem in several other contested subject areas. “Once I realized that selective reporting is everywhere in science, I got quite depressed,” Palmer told me. “As a researcher, you’re always aware that there might be some nonrandom patterns, but I had no idea how widespread it is.”
  • Palmer summarized the impact of selective reporting on his field: “We cannot escape the troubling conclusion that some—perhaps many—cherished generalities are at best exaggerated in their biological significance and at worst a collective illusion nurtured by strong a-priori beliefs often repeated.”
  • Palmer emphasizes that selective reporting is not the same as scientific fraud. Rather, the problem seems to be one of subtle omissions and unconscious misperceptions, as researchers struggle to make sense of their results. Stephen Jay Gould referred to this as the “sho
  • horning” process.
  • “A lot of scientific measurement is really hard,” Simmons told me. “If you’re talking about fluctuating asymmetry, then it’s a matter of minuscule differences between the right and left sides of an animal. It’s millimetres of a tail feather. And so maybe a researcher knows that he’s measuring a good male”—an animal that has successfully mated—“and he knows that it’s supposed to be symmetrical. Well, that act of measurement is going to be vulnerable to all sorts of perception biases. That’s not a cynical statement. That’s just the way human beings work.”
  • One of the classic examples of selective reporting concerns the testing of acupuncture in different countries. While acupuncture is widely accepted as a medical treatment in various Asian countries, its use is much more contested in the West. These cultural differences have profoundly influenced the results of clinical trials.
  • John Ioannidis, an epidemiologist at Stanford University, argues that such distortions are a serious issue in biomedical research. “These exaggerations are why the decline has become so common,” he says. “It’d be really great if the initial studies gave us an accurate summary of things. But they don’t. And so what happens is we waste a lot of money treating millions of patients and doing lots of follow-up studies on other themes based on results that are misleading.”
  • In 2005, Ioannidis published an article in the Journal of the American Medical Association that looked at the forty-nine most cited clinical-research studies in three major medical journals.
  • the data Ioannidis found were disturbing: of the thirty-four claims that had been subject to replication, forty-one per cent had either been directly contradicted or had their effect sizes significantly downgraded.
  • the most troubling fact emerged when he looked at the test of replication: out of four hundred and thirty-two claims, only a single one was consistently replicable. “This doesn’t mean that none of these claims will turn out to be true,” he says. “But, given that most of them were done badly, I wouldn’t hold my breath.”
  • According to Ioannidis, the main problem is that too many researchers engage in what he calls “significance chasing,” or finding ways to interpret the data so that it passes the statistical test of significance—the ninety-five-per-cent boundary invented by Ronald Fisher.
  • For Simmons, the steep rise and slow fall of fluctuating asymmetry is a clear example of a scientific paradigm, one of those intellectual fads that both guide and constrain research: after a new paradigm is proposed, the peer-review process is tilted toward positive results. But then, after a few years, the academic incentives shift—the paradigm has become entrenched—so that the most notable results are now those that disprove the theory.
  • The problem of selective reporting is rooted in a fundamental cognitive flaw, which is that we like proving ourselves right and hate being wrong.
  • “It feels good to validate a hypothesis,” Ioannidis said. “It feels even better when you’ve got a financial interest in the idea or your career depends upon it. And that’s why, even after a claim has been systematically disproven”—he cites, for instance, the early work on hormone replacement therapy, or claims involving various vitamins—“you still see some stubborn researchers citing the first few studies
  • That’s why Schooler argues that scientists need to become more rigorous about data collection before they publish. “We’re wasting too much time chasing after bad studies and underpowered experiments,”
  • The current “obsession” with replicability distracts from the real problem, which is faulty design.
  • “Every researcher should have to spell out, in advance, how many subjects they’re going to use, and what exactly they’re testing, and what constitutes a sufficient level of proof. We have the tools to be much more transparent about our experiments.”
  • Schooler recommends the establishment of an open-source database, in which researchers are required to outline their planned investigations and document all their results. “I think this would provide a huge increase in access to scientific work and give us a much better way to judge the quality of an experiment,”
  • scientific research will always be shadowed by a force that can’t be curbed, only contained: sheer randomness. Although little research has been done on the experimental dangers of chance and happenstance, the research that exists isn’t encouraging.
  • The disturbing implication of the Crabbe study is that a lot of extraordinary scientific data are nothing but noise. The hyperactivity of those coked-up Edmonton mice wasn’t an interesting new fact—it was a meaningless outlier, a by-product of invisible variables we don’t understand.
  • The problem, of course, is that such dramatic findings are also the most likely to get published in prestigious journals, since the data are both statistically significant and entirely unexpected
  • This suggests that the decline effect is actually a decline of illusion. While Karl Popper imagined falsification occurring with a single, definitive experiment—Galileo refuted Aristotelian mechanics in an afternoon—the process turns out to be much messier than that.
  • Many scientific theories continue to be considered true even after failing numerous experimental tests.
  • Even the law of gravity hasn’t always been perfect at predicting real-world phenomena. (In one test, physicists measuring gravity by means of deep boreholes in the Nevada desert found a two-and-a-half-per-cent discrepancy between the theoretical predictions and the actual data.)
  • Such anomalies demonstrate the slipperiness of empiricism. Although many scientific ideas generate conflicting results and suffer from falling effect sizes, they continue to get cited in the textbooks and drive standard medical practice. Why? Because these ideas seem true. Because they make sense. Because we can’t bear to let them go. And this is why the decline effect is so troubling. Not because it reveals the human fallibility of science, in which data are tweaked and beliefs shape perceptions. (Such shortcomings aren’t surprising, at least for scientists.) And not because it reveals that many of our most exciting theories are fleeting fads and will soon be rejected. (That idea has been around since Thomas Kuhn.)
  • The decline effect is troubling because it reminds us how difficult it is to prove anything. We like to pretend that our experiments define the truth for us. But that’s often not the case. Just because an idea is true doesn’t mean it can be proved. And just because an idea can be proved doesn’t mean it’s true. When the experiments are done, we still have to choose what to believe. ♦
kushnerha

New Ways Into the Brain's 'Music Room' - The New York Times - 5 views

www.nytimes.com/...nto-the-brains-music-room.html

new york times music brain science research language

shared by kushnerha on 08 Feb 16 - No Cached
  • Every culture ever studied has been found to make music, and among the oldest artistic objects known are slender flutes carved from mammoth bone some 43,000 years ago — 24,000 years before the cave paintings of Lascaux.
  • , many researchers had long assumed that the human brain must be equipped with some sort of music room, a distinctive piece of cortical architecture dedicated to detecting and interpreting the dulcet signals of song. Yet for years, scientists failed to find any clear evidence of a music-specific domain through conventional brain-scanning technology
  • devised a radical new approach to brain imaging that reveals what past studies had missed. By mathematically analyzing scans of the auditory cortex and grouping clusters of brain cells with similar activation patterns, the scientists have identified neural pathways that react almost exclusively to the sound of music — any music. It may be Bach, bluegrass, hip-hop, big band, sitar or Julie Andrews. A listener may relish the sampled genre or revile it. No matter. When a musical passage is played, a distinct set of neurons tucked inside a furrow of a listener’s auditory cortex will fire in response.Other sounds, by contrast — a dog barking, a car skidding, a toilet flushing — leave the musical circuits unmoved.
  • ...11 more annotations...
  • “Why do we have music?” Dr. Kanwisher said in an interview. “Why do we enjoy it so much and want to dance when we hear it? How early in development can we see this sensitivity to music, and is it tunable with experience? These are the really cool first-order questions we can begin to address.”
  • Dr. McDermott said the new method could be used to computationally dissect any scans from a functional magnetic resonance imaging device, or F.M.R.I. — the trendy workhorse of contemporary neuroscience — and so may end up divulging other hidden gems of cortical specialization. As proof of principle, the researchers showed that their analytical protocol had detected a second neural pathway in the brain for which scientists already had evidence — this one tuned to the sounds of human speech.
  • Importantly, the M.I.T. team demonstrated that the speech and music circuits are in different parts of the brain’s sprawling auditory cortex, where all sound signals are interpreted, and that each is largely deaf to the other’s sonic cues, although there is some overlap when it comes to responding to songs with lyrics.
  • In fact, Dr. Rauschecker said, music sensitivity may be more fundamental to the human brain than is speech perception. “There are theories that music is older than speech or language,” he said. “Some even argue that speech evolved from music.”
  • And though the survival value that music held for our ancestors may not be as immediately obvious as the power to recognize words, Dr. Rauschecker added, “music works as a group cohesive. Music-making with other people in your tribe is a very ancient, human thing to do.”
  • when previous neuroscientists failed to find any anatomically distinct music center in the brain, they came up with any number of rationales to explain the results.“The story was, oh, what’s special about music perception is how it recruits areas from all over the brain, how it draws on the motor system, speech circuitry, social understanding, and brings it all together,” she said. Some researchers dismissed music as “auditory cheesecake,” a pastime that co-opted other essential communicative urges. “This paper says, no, when you peer below the cruder level seen with some methodologies, you find very specific circuitry that responds to music over speech.”
  • The researchers wondered if the auditory system might be similarly organized to make sense of the soundscape through a categorical screen. If so, what would the salient categories be? What are the aural equivalents of a human face or a human leg — sounds or sound elements so essential the brain assigns a bit of gray matter to the task of detecting them?
  • Focusing on the brain’s auditory region — located, appropriately enough, in the temporal lobes right above the ears — the scientists analyzed voxels, or three-dimensional pixels, of the images mathematically to detect similar patterns of neuronal excitement or quietude.“The strength of our method is that it’s hypothesis-neutral,” Dr. McDermott said. “We just present a bunch of sounds and let the data do the talking.”
  • Matching sound clips to activation patterns, the researchers determined that four of the patterns were linked to general physical properties of sound, like pitch and frequency. The fifth traced the brain’s perception of speech, and for the sixth the data turned operatic, disclosing a neuronal hot spot in the major crevice, or sulcus, of the auditory cortex that attended to every music clip the researchers had played.
  • “The sound of a solo drummer, whistling, pop songs, rap, almost everything that has a musical quality to it, melodic or rhythmic, would activate it,” Dr. Norman-Haignere said. “That’s one reason the result surprised us. The signals of speech are so much more homogeneous.”
  • The researchers have yet to determine exactly which acoustic features of music stimulate its dedicated pathway. The relative constancy of a musical note’s pitch? Its harmonic overlays? Even saying what music is can be tricky.
dicindioha

Breitbart's James Delingpole says reef bleaching is 'fake news', hits peak denial | Graham Readfearn | Environment | The Guardian - 0 views

www.theguardian.com/...-is-fake-news-hits-peak-denial

climate change

shared by dicindioha on 24 Mar 17 - No Cached
  • It takes a very special person to label the photographed, documented, filmed and studied phenomenon of mass coral bleaching on the Great Barrier Reef “fake news”.
  • It also helps if you can hide inside the bubble of the hyper-partisan Breitbart media outlet, whose former boss is the US president’s chief strategist.
  • So our special person is the British journalist James Delingpole who, when he’s not denying the impacts of coral bleaching, is denying the science of human-caused climate change, which he says is “the biggest scam in the history of the world”.
    • dicindioha
      dicindioha on 24 Mar 17
       
      oh dear...
  • ...8 more annotations...
  • When we talk about the reef dying, what we are talking about are the corals that form the reef’s structure – the things that when in a good state of health can be splendorous enough to support about 69,000 jobs in Queensland and add about $6bn to Australia’s economy every year.
  • The Great Barrier Reef has suffered mass coral bleaching three times – in 1998, 2002 and 2016 – with a fourth episode now unfolding. The cause is increasing ocean temperatures.
  • So it seems we are now at a stage where absolutely nothing is real unless you have seen it for yourself,
  • Senator Pauline Hanson and her One Nation climate science-denying colleagues tried to pull a similar stunt last year by taking a dive on a part of the reef that had escaped bleaching and then claiming this as proof that everything was OK everywhere else.
  • Corals bleach when they are exposed to abnormally high ocean temperatures for too long. Under stress, the corals expel the algae that give them their colour and more of their nutrients.
  • After the 2016 bleaching, a quarter of all corals on the reef, mostly located in the once “pristine” northern section, died before there was a chance for recovery.
  • Essentially, the study found the only measure that would give corals on the reef a fighting chance was to rapidly reduce greenhouse gas emissions.
  • Some commentators have suggested a key cause of the 2016 bleaching was the El Niño weather pattern that tends to deliver warmer global temperatures. But Hughes says that before 1998, the Great Barrier Reef went through countless El Niños without suffering the extensive mass bleaching episodes that are being seen, photographed, filmed and documented now.
  • dicindioha on 24 Mar 17
     
    This frustrates me enormously. When there is evidence of bleaching of the coral and the impact of global warming on this coral, I don't understand how people can say this is fake news. It seems the US, at least, will not be helping fix this problem, but the whole world is at fault for this, and we should be a part of fixing it.
Javier E

Clouds' Effect on Climate Change Is Last Bastion for Dissenters - NYTimes.com - 0 views

www.nytimes.com/...st-bastion-for-dissenters.html

global warming science methods research clouds

shared by Javier E on 02 May 12 - Cached
  • For decades, a small group of scientific dissenters has been trying to shoot holes in the prevailing science of climate change, offering one reason after another why the outlook simply must be wrong. Enlarge This Image Josh Haner/The New York Times A technician at a Department of Energy site in Oklahoma launching a weather balloon to help scientists analyze clouds. More Photos » Temperature Rising Enigma in the Sky This series focuses on the central arguments in the climate debate and examining the evidence for global warming and its consequences. More From the Series » if (typeof NYTDVideoManager != "undefined") { NYTDVideoManager.setAllowMultiPlayback(false); } function displayCompanionBanners(banners, tracking) { tmDisplayBanner(banners, "videoAdContent", 300, 250, null, tracking); } Multimedia Interactive Graphic Clouds and Climate Slide Show Understanding the Atmosphere Related Green Blog: Climate Change and the Body Politic (May 1, 2012) An Underground Fossil Forest Offers Clues on Climate Change (May 1, 2012) A blog about energy and the environment. Go to Blog » Readers’ Comments "There is always some possibility that the scientific consensus may be wrong and Dr. Lindzen may be right, or that both may be wrong. But the worst possible place to resolve such issues is the political arena." Alexander Flax, Potomac, MD Read Full Comment » Post a Comment » Over time, nearly every one of their arguments has been knocked down by accumulating evidence, and polls say 97 percent of working climate scientists now see global warming as a serious risk.
  • They acknowledge that the human release of greenhouse gases will cause the planet to warm. But they assert that clouds — which can either warm or cool the earth, depending on the type and location — will shift in such a way as to counter much of the expected temperature rise and preserve the equable climate on which civilization depends.
  • At gatherings of climate change skeptics on both sides of the Atlantic, Dr. Lindzen has been treated as a star. During a debate in Australia over carbon taxes, his work was cited repeatedly. When he appears at conferences of the Heartland Institute, the primary American organization pushing climate change skepticism, he is greeted by thunderous applause.
  • ...13 more annotations...
  • His idea has drawn withering criticism from other scientists, who cite errors in his papers and say proof is lacking. Enough evidence is already in hand, they say, to rule out the powerful cooling effect from clouds that would be needed to offset the increase of greenhouse gases.
  • “If you listen to the credible climate skeptics, they’ve really pushed all their chips onto clouds.”
  • Dr. Lindzen is “feeding upon an audience that wants to hear a certain message, and wants to hear it put forth by people with enough scientific reputation that it can be sustained for a while, even if it’s wrong science,” said Christopher S. Bretherton, an atmospheric researcher at the University of Washington. “I don’t think it’s intellectually honest at all.”
  • With climate policy nearly paralyzed in the United States, many other governments have also declined to take action, and worldwide emissions of greenhouse gases are soaring.
  • The most elaborate computer programs have agreed on a broad conclusion: clouds are not likely to change enough to offset the bulk of the human-caused warming. Some of the analyses predict that clouds could actually amplify the warming trend sharply through several mechanisms, including a reduction of some of the low clouds that reflect a lot of sunlight back to space. Other computer analyses foresee a largely neutral effect. The result is a big spread in forecasts of future temperature, one that scientists have not been able to narrow much in 30 years of effort.
  • The earth’s surface has already warmed about 1.4 degrees Fahrenheit since the Industrial Revolution, most of that in the last 40 years. Modest as it sounds, it is an average for the whole planet, representing an enormous addition of heat. An even larger amount is being absorbed by the oceans. The increase has caused some of the world’s land ice to melt and the oceans to rise.
  • Even in the low projection, many scientists say, the damage could be substantial. In the high projection, some polar regions could heat up by 20 or 25 degrees Fahrenheit — more than enough, over centuries or longer, to melt the Greenland ice sheet, raising sea level by a catastrophic 20 feet or more. Vast changes in  rainfall, heat waves and other weather patterns would most likely accompany such a large warming. “The big damages come if the climate sensitivity to greenhouse gases turns out to be high,” said Raymond T. Pierrehumbert, a climate scientist at the University of Chicago. “Then it’s not a bullet headed at us, but a thermonuclear warhead.”
  • But the problem of how clouds will behave in a future climate is not yet solved — making the unheralded field of cloud research one of the most important pursuits of modern science.
  • for more than a decade, Dr. Lindzen has said that when surface temperature increases, the columns of moist air rising in the tropics will rain out more of their moisture, leaving less available to be thrown off as ice, which forms the thin, high clouds known as cirrus. Just like greenhouse gases, these cirrus clouds act to reduce the cooling of the earth, and a decrease of them would counteract the increase of greenhouse gases. Dr. Lindzen calls his mechanism the iris effect, after the iris of the eye, which opens at night to let in more light. In this case, the earth’s “iris” of high clouds would be opening to let more heat escape.
  • Dr. Lindzen acknowledged that the 2009 paper contained “some stupid mistakes” in his handling of the satellite data. “It was just embarrassing,” he said in an interview. “The technical details of satellite measurements are really sort of grotesque.” Last year, he tried offering more evidence for his case, but after reviewers for a prestigious American journal criticized the paper, Dr. Lindzen published it in a little-known Korean journal. Dr. Lindzen blames groupthink among climate scientists for his publication difficulties, saying the majority is determined to suppress any dissenting views. They, in turn, contend that he routinely misrepresents the work of other researchers.
  • Ultimately, as the climate continues warming and more data accumulate, it will become obvious how clouds are reacting. But that could take decades, scientists say, and if the answer turns out to be that catastrophe looms, it would most likely be too late. By then, they say, the atmosphere would contain so much carbon dioxide as to make a substantial warming inevitable, and the gas would not return to a normal level for thousands of years.
  • In his Congressional appearances, speeches and popular writings, Dr. Lindzen offers little hint of how thin the published science supporting his position is. Instead, starting from his disputed iris mechanism, he makes what many of his colleagues see as an unwarranted leap of logic, professing near-certainty that climate change is not a problem society needs to worry about.
  • “Even if there were no political implications, it just seems deeply unprofessional and irresponsible to look at this and say, ‘We’re sure it’s not a problem,’ ” said Kerry A. Emanuel, another M.I.T. scientist. “It’s a special kind of risk, because it’s a risk to the collective civilization.”
Javier E

Philosophy Is Not a Science - NYTimes.com - 0 views

opinionator.blogs.nytimes.com/...philosophy-is-not-a-science

science philosophy knowledge experiment analysis

shared by Javier E on 07 Apr 12 - Cached
  • what objective knowledge can philosophy bring that is not already determinable by science?
  • numerous philosophers have come to believe, in concert with the prejudices of our age, that only science holds the potential to solve persistent philosophical mysteries as the nature of truth, life, mind, meaning, justice, the good and the beautiful.
  • myriad contemporary philosophers are perfectly willing to offer themselves up as intellectual servants or ushers of scientific progress. Their research largely functions as a spearhead for scientific exploration and as a balm for making those pursuits more palpable and palatable to the wider population.
  • ...13 more annotations...
  • While science and philosophy do at times overlap, they are fundamentally different approaches to understanding. So philosophers should not add to the conceptual confusion that subsumes all knowledge into science.
  • various disciplines we ordinarily treat as science are at least as — if not more —philosophical than scientific. Take for example mathematics, theoretical physics, psychology and economics. These are predominately rational conceptual disciplines. That is, they are not chiefly reliant on empirical observation. For unlike science, they may be conducted while sitting in an armchair with eyes closed.
  • unlike empirical observations, which may be mistaken or incomplete, philosophical findings depend primarily on rational and logical principles. As such, whereas science tends to alter and update its findings day to day through trial and error, logical deductions are timeless.
  • while mathematics is empirically testable at such rudimentary levels, it stops being so in its purest forms, like analysis and number theory. Proofs in these areas are conducted entirely conceptually
  • Logically fallacious arguments can be rather sophisticated and persuasive. But they are nevertheless invalid and always will be. Exposing such errors is part of philosophy’s stock and trade.
  • Wittgenstein showed that an ordinary word such as “game” is used consistently in myriad contrasting ways without possessing any essential unifying definition. Though this may seem impossible, the meaning of such terms is actually determined by their contextual usage
  • Ultimately as a result of Wittgenstein’s philosophy, we know that natural language is a public phenomenon that cannot logically be invented in isolation.
  • These are essentially conceptual clarifications. And as such, they are relatively timeless philosophical truths.
  • This is also why jurisprudence qualifies as an objective body of knowledge
  • Supreme Court justices are not so much scientific as philosophical experts on the nature of justice. And that is not to say their expertise does not count as genuine knowledge. In the best cases, it rises to the loftier level of wisdom
  • Though philosophy does sometimes employ thought experiments, these aren’t actually scientific, for they are conducted entirely in the imagination.
  • in ethics, science cannot necessarily tell us what to value
  • evidence of how most people happen to be does not necessarily tell us everything about how we should aspire to be. For how we should aspire to be is a conceptual question, namely, of how we ought to act, as opposed to an empirical question of how we do act.
Javier E

Stern-Mackenzie One-Round War - NYTimes.com - 0 views

wordplay.blogs.nytimes.com/...war

math proof games

shared by Javier E on 14 Jan 14 - No Cached
  • a special note to math lovers everywhere: Dana Mackenzie’s “The Universe in Zero Words: The Story of Mathematics as Told through Equations,” which Nature calls “a celebration of the succinct and the singular in human expression,” is now available in paperback.
Javier E

A Multitasking Video Game Makes Old Brains Act Younger - NYTimes.com - 0 views

www.nytimes.com/...es-old-brains-act-younger.html

brain science video games attention psychology multitasking

shared by Javier E on 05 Sep 13 - No Cached
  • The research “shows you can take older people who aren’t functioning well and make them cognitively younger through this training,” said Earl K. Miller, a neuroscientist at the Massachusetts Institute of Technology, who was not affiliated with the research. “It’s a very big deal.”
  • Neuroscientists there, led by Dr. Adam Gazzaley, worked with developers to create NeuroRacer, a relatively simple video game in which players drive and try to identify specific road signs that pop up on the screen, while ignoring other signs deemed irrelevant.
  • One of the main early findings of the study reinforced just how challenging it is to multitask successfully, particularly as people age.
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  • People in their 20s experienced a 26 percent drop in performance when they were asked to try to drive and identify signs at the same time (rather than just identify the signs without driving). For people in their 60s to 80s, the performance drop was 64 percent.
  • But after the older adults trained at the game, they became more proficient than untrained people in their 20s. The performance levels were sustained for six months, even without additional training. Also, the older adults performed better at memory and attention tests outside the game.
  • The researchers created a second layer of proof by monitoring the brain waves of participants using electroencephalography. What they found was that in older participants, in their 60s to 80s, there were increases in a brain wave called theta, a low-level frequency associated with attention.
Javier E

Valley of the Blahs: How Justin Bieber's Troubles Exposed Twitter's Achilles' Heel - NYTimes.com - 0 views

bits.blogs.nytimes.com/...exposed-twitters-achilles-heel

twitter social media

shared by Javier E on 26 Jan 14 - No Cached
  • I think the number of followers you have is often irrelevant. What does matter, however, is how many people notice you, either through retweets, favorites or the holy grail, a retweet by someone extremely well known, like a celebrity. That validation that your contribution is important, interesting or worthy is enough social proof to encourage repetition. Many times, that results in one-upmanship, straining to be the loudest or the most retweeted and referred to as the person who captured the splashiest event of the day in the pithiest way.
  • It feels as if we’re all trying to be a cheeky guest on a late-night show, a reality show contestant or a toddler with a tiara on Twitter — delivering the performance of a lifetime, via a hot, rapid-fire string of commentary, GIFs or responses that help us stand out from the crowd. We’re sold on the idea that if we’re good enough, it could be our ticket to success
  • more often than not, it translates to standing on a collective soapbox, elbowing each other for room, in the hopes of being credited with delivering the cleverest one-liner or reaction
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  • Increasingly, I’ve found myself retreating to smaller groups, where the stakes are lower and people are more honest and less determined to prove a point, freer to joke and experiment, more trusting in one other and open to real conversation.
  • Twitter is starting to feel calcified, slowed down by the weight of its own users, cumbersome, less exciting than exhausting. It may be why less public forms of communication — messaging applications like Snapchat, GroupMe, Instagram Direct and even old-fashioned e-mail threads and Google groups — are playing a bigger and bigger role in the most meaningful interactions during my day online.
  • even if the company were to snap to attention and give its community something other than Twitter lists and block or unfollow buttons to help users tailor their feeds, it most likely wouldn’t be enough. We, the users, the producers, the consumers — all our manic energy, yearning to be noticed, recognized for an important contribution to the conversation — are the problem. It is fueled by our own increasing need for attention, validation, through likes, favorites, responses, interactions. It is a feedback loop that can’t be closed, at least not for now.
Javier E

The Smart Set: I Have My Reasons - May 24, 2011 - 0 views

www.thesmartset.com/...article05241102.aspx

religion magic irrationality rationality

shared by Javier E on 09 Aug 13 - No Cached
  • Wasn’t the Enlightenment supposed to wash the world of its sins of superstition and religion? And yet humanity keeps clinging to its belief systems, its religious leaders, and its prayer. More than that, we’re dipping back into the magical realms — one would think that if superstition were to be eradicated through the power of reason and rationality, magic would be the first to go. It turns out our hunger for the irrational and the intuitive is more insatiable than previously assumed. We have our Kabbalah, our Chaos Magick, our Druids. We have our mystics and tarot card readers and our astrologers on morning news shows explaining why Kate and William are a match made by the gods. Wicca is a fast growing religion in the United States, and my German health insurance covers homeopathy and Reiki massage, both of which have always felt more like magic than science to me.
  • And yet the atheists keep on, telling us that we don’t have to believe in God. It maybe never occurred to them that perhaps we want to.
  • Magical belief, whether that entails an omnipotent God who watches over us or the conviction that we can communicate with “the other side,” fills a need in us. Some of us, I should say, as atheists would be quick to counter. How seriously we take that belief, and what we do with it varies from person to person. As the debates between the godless and the faithful continue — and these are so prevalent in our culture now, the religious figure versus the atheist, sponsored by every university and cultural center, that I read such a debate in a novel I had picked up — that perhaps these two kinds of people simply have a different set of needs. It’s like a new mother arguing with a woman who has never felt maternal a day in her life. Neither side will ever truly understand the longings of the other, and the fact that they can’t stop arguing and trying to convince is proof of that.
Emily Freilich

Rights group's report offers compelling evidence of Syria chemical attack - CBS News - 0 views

www.cbsnews.com/...dence-of-syria-chemical-attack

evidence syria report

shared by Emily Freilich on 13 Sep 13 - No Cached
  • On Tuesday, the group Human Rights Watch issued a report that said evidence strongly implies that Syrian government troops' firing of rockets containing a nerve agent into a Damascus suburb on August 21 that the U.S. said killed over 1,400 people.
  • While the report doesn't furnish conclusive proof that the Syrian government carried out the attack with chemical weapons, it does present the most coherent circumstantial evidence I've seen so far to support the case.
  • The report does not rely on ambiguous intercepted phone calls. It cites no shadowy intelligence gathering
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  • HRW's experts take a close look at witness statements and photographs and video of the victims and -- above all -- the remains of the weapons that appear to have been used.
  • The report provides another map that shows that there were several military bases around Zamalka and Moadimiyeh on August 21st, that were within the correct firing distanc
grayton downing

Biofuel Mimicry | The Scientist Magazine® - 0 views

www.the-scientist.com/?articles.view/articleNo/37587/title/Biofuel-Mimicry/

biofuel scientist mimicry research

shared by grayton downing on 29 Oct 13 - No Cached
  • ants create the largest colonies of any ant, with some comprising 8 million individuals. To sustain themselves, they march across the forest carrying vast quantities of leaves, piece by piece, in great green convoys, back to the nest. The ants use the leaves as fertilizer to cultivate gardens sown with bacteria and Leucoagaricus gongylophorous, a fungus that produces fruiting bodies packed with nutrients for the ants to feast on.
  • could also provide a model for the more efficient production of renewable biofuels.
  • confirmed that 145 lignocellulases were actually present. “That’s pretty definitive proof that the fungus is the primary driver of biomass breakdown,
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  • offers new insights into the contributions made by the fungus to plant degradation
  • identification of enzymes capable of degrading lignocelluloses could also be a boon for the biofuels industry. Biofuel companies already use enzyme blends to break down starches from plant biomass, most commonly corn, into sugars to be fermented into ethanol. But the enzymes currently available can’t break down tough-to-degrade molecules such as lignocelluloses on an industrial scale.
  • idea is that the genes coding for these enzymes in the fungus gardens of leafcutter ants can be mass-produced in the lab by inserting them into E. coli or yeast, then used to break down feedstocks that require less land, fewer resources, and that don’t compete with food crops. “This is a highly evolved system, so the hypothesis is that the enzymes would be highly tuned to break down plant biomass,”
  • researchers will also need to take into account the role of bacteria. “It could be that bacteria are producing some enzymes that enhance the efficacy of the fungal enzymes,” says Aylward. “Integrating the bacterial component is likely to be important, because the synergism we see with leafcutter gardens is on the level of the entire symbiosis.”
Javier E

Untier Of Knots « The Dish - 0 views

dish.andrewsullivan.com/...untier-of-knots

Pope Francis Christianity St Francis religion faith skepticism

shared by Javier E on 18 Dec 13 - No Cached
  • Benedict XVI and John Paul II focused on restoring dogmatic certainty as the counterpart to papal authority. Francis is arguing that both, if taken too far, can be sirens leading us away from God, not ensuring our orthodoxy but sealing us off in calcified positions and rituals that can come to mean nothing outside themselves
  • In this quest to seek and find God in all things there is still an area of uncertainty. There must be. If a person says that he met God with total certainty and is not touched by a margin of uncertainty, then this is not good. For me, this is an important key. If one has the answers to all the questions – that is the proof that God is not with him. It means that he is a false prophet using religion for himself. The great leaders of the people of God, like Moses, have always left room for doubt. You must leave room for the Lord, not for our certainties; we must be humble.
  • If the Christian is a restorationist, a legalist, if he wants everything clear and safe, then he will find nothing. Tradition and memory of the past must help us to have the courage to open up new areas to God.
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  • Ratzinger’s Augustinian notion of divine revelation: it is always a radical gift; it must always be accepted without question; it comes from above to those utterly unworthy below; and we are too flawed, too sinful, too human to question it in even the slightest respect. And if we ever compromise an iota on that absolute, authentic, top-down truth, then we can know nothing as true. We are, in fact, lost for ever.
  • we can say what God is not, we can speak of his attributes, but we cannot say what He is. That apophatic dimension, which reveals how I speak about God, is critical to our theology
  • I would also classify as arrogant those theologies that not only attempted to define with certainty and exactness God’s attributes, but also had the pretense of saying who He was.
  • It is only in living that we achieve hints and guesses – and only hints and guesses – of what the Divine truly is. And because the Divine is found and lost by humans in time and history, there is no reachable truth for humans outside that time and history.
  • We are part of an unfolding drama in which the Christian, far from clinging to some distant, pristine Truth he cannot fully understand, will seek to understand and discern the “signs of the times” as one clue as to how to live now, in the footsteps of Jesus. Or in the words of T.S. Eliot, There is only the fight to recover what has been lost And found and lost again and again: and now, under conditions That seem unpropitious. But perhaps neither gain nor loss. For us, there is only the trying. The rest is not our business.
  • In the end, you realize your only real option – against almost every fiber in your irate being – is to take each knot in turn, patiently and gently undo it, loosen a little, see what happens, and move on to the next. You will never know exactly when all the knots will resolve themselves – it can happen quite quickly after a while or seemingly never. But you do know that patience, and concern with the here and now, is the only way to “solve” the “problem.” You don’t look forward with a plan; you look down with a practice.
  • A Christian life is about patience, about the present and about trust that God is there for us. It does not seek certainty or finality to life’s endless ordeals and puzzles. It seeks through prayer and action in the world to listen to God’s plan and follow its always-unfolding intimations. It requires waiting. It requires diligence
  • We may never know why exactly Benedict resigned as he did. But I suspect mere exhaustion of the body and mind was not the whole of it. He had to see, because his remains such a first-rate mind, that his project had failed, that the levers he continued to pull – more and more insistent doctrinal orthodoxy, more political conflict with almost every aspect of the modern world, more fastidious control of liturgy – simply had no impact any more.
  • The Pope must accompany those challenging existing ways of doing things! Others may know better than he does. Or, to feminize away the patriarchy: I dream of a church that is a mother and shepherdess. The church’s ministers must be merciful, take responsibility for the people, and accompany them like the good Samaritan, who washes, cleans, and raises up his neighbor. This is pure Gospel.
  • the key to Francis’ expression of faith is an openness to the future, a firm place in the present, and a willingness to entertain doubt, to discern new truths and directions, and to grow. Think of Benedict’s insistence on submission of intellect and will to the only authentic truth (the Pope’s), and then read this: Within the Church countless issues are being studied and reflected upon with great freedom. Differing currents of thought in philosophy, theology, and pastoral practice, if open to being reconciled by the Spirit in respect and love, can enable the Church to grow, since all of them help to express more clearly the immense riches of God’s word. For those who long for a monolithic body of doctrine guarded by all and leaving no room for nuance, this might appear as undesirable and leading to confusion. But in fact such variety serves to bring out and develop different facets of the inexhaustible riches of the Gospel.
  • Underlying all this is a profound shift away from an idea of religion as doctrine and toward an idea of religion as a way of life. Faith is a constantly growing garden, not a permanently finished masterpiece
  • faith is, for Francis, a way of life, not a set of propositions. It is a way of life in community with others, lived in the present yet always, deeply, insistently aware of eternity.
  • Father Howard Gray S.J. has put it simply enough: Ultimately, Ignatian spirituality trusts the world as a place where God dwells and labors and gathers all to himself in an act of forgiveness where that is needed, and in an act of blessing where that is prayed for.
  • Francis, like Jesus, has had such an impact in such a short period of time simply because of the way he seems to be. His being does not rely on any claims to inherited, ecclesiastical authority; his very way of life is the only moral authority he wants to claim.
  • “Preach the Gospel always. If necessary, with words.”
  • these actions – of humility, of kindness, of compassion, and of service – are integral to Francis’ resuscitation of Christian moral authority. He is telling us that Christianity, before it is anything else, is a way of life, an orientation toward the whole, a living commitment to God through others. And he is telling us that nothing – nothing – is more powerful than this.
  • I would not speak about, not even for those who believe, an “absolute” truth, in the sense that absolute is something detached, something lacking any relationship. Now, the truth is a relationship! This is so true that each of us sees the truth and expresses it, starting from oneself: from one’s history and culture, from the situation in which one lives, etc. This does not mean that the truth is variable and subjective. It means that it is given to us only as a way and a life. Was it not Jesus himself who said: “I am the way, the truth, the life”? In other words, the truth is one with love, it requires humbleness and the willingness to be sought, listened to and expressed.
  • “proselytism is solemn nonsense.” That phrase – deployed by the Pope in dialogue with the Italian atheist Eugenio Scalfari (as reported by Scalfari) – may seem shocking at first. But it is not about denying the revelation of Jesus. It is about how that revelation is expressed and lived. Evangelism, for Francis, is emphatically not about informing others about the superiority of your own worldview and converting them to it. That kind of proselytism rests on a form of disrespect for another human being. Something else is needed:
  • nstead of seeming to impose new obligations, Christians should appear as people who wish to share their joy, who point to a horizon of beauty and who invite others to a delicious banquet. It is not by proselytizing that the Church grows, but “by attraction.”
  • what you see in the life of Saint Francis is a turn from extreme violence to extreme poverty, as if only the latter could fully compensate for the reality of the former. This was not merely an injunction to serve the poor. It is the belief that it is only by being poor or becoming poor that we can come close to God
  • Pope Francis insists – and has insisted throughout his long career in the church – that poverty is a key to salvation. And in choosing the name Francis, he explained last March in Assisi, this was the central reason why:
  • Saint Francis. His conversion came after he had gone off to war in defense of his hometown, and, after witnessing horrifying carnage, became a prisoner of war. After his release from captivity, his strange, mystical journey began.
  • the priority of practice over theory, of life over dogma. Evangelization is about sitting down with anyone anywhere and listening and sharing and being together. A Christian need not be afraid of this encounter. Neither should an atheist. We are in this together, in the same journey of life, with the same ultimate mystery beyond us. When we start from that place – of radical humility and radical epistemological doubt – proselytism does indeed seem like nonsense, a form of arrogance and detachment, reaching for power, not freedom. And evangelization is not about getting others to submit their intellect and will to some new set of truths; it is about an infectious joy for a new way of living in the world. All it requires – apart from joy and faith – is patience.
  • Some have suggested that much of what Francis did is compatible with PTSD. He disowned his father and family business, and he chose to live homeless, and close to naked, in the neighboring countryside, among the sick and the animals. From being the dashing man of society he had once been, he became a homeless person with what many of us today would call, at first blush, obvious mental illness.
  • But there is little sense that a political or economic system can somehow end the problem of poverty in Francis’ worldview. And there is the discomfiting idea that poverty itself is not an unmitigated evil. There is, indeed, a deep and mysterious view, enunciated by Jesus, and held most tenaciously by Saint Francis, that all wealth, all comfort, and all material goods are suspect and that poverty itself is a kind of holy state to which we should all aspire.
  • Not only was Saint Francis to become homeless and give up his patrimony, he was to travel on foot, wearing nothing but a rough tunic held together with rope. Whatever else it is, this is not progressivism. It sees no structural, human-devised system as a permanent improver of our material lot. It does not envision a world without poverty, but instead a church of the poor and for the poor. The only material thing it asks of the world, or of God, is daily bread – and only for today, never for tomorrow.
  • From this perspective, the idea that a society should be judged by the amount of things it can distribute to as many people as possible is anathema. The idea that there is a serious social and political crisis if we cannot keep our wealth growing every year above a certain rate is an absurdity.
  • this is a 21st-century heresy. Which means, I think, that this Pope is already emerging and will likely only further emerge as the most potent critic of the newly empowered global capitalist project.
  • Now, the only dominant ideology in the world is the ideology of material gain – either through the relatively free markets of the West or the state-controlled markets of the East. And so the church’s message is now harder to obscure. It stands squarely against the entire dominant ethos of our age. It is the final resistance.
  • For Francis, history has not come to an end, and capitalism, in as much as it is a global ideology that reduces all of human activity to the cold currency of wealth, is simply another “ism” to be toppled in humankind’s unfolding journey toward salvation on earth.
  • Francis will grow as the church reacts to him; it will be a dynamic, not a dogma; and it will be marked less by the revelation of new things than by the new recognition of old things, in a new language. It will be, if its propitious beginnings are any sign, a patient untying of our collective, life-denying knots.
Emily Freilich

Integrating Design Theory & the Scientific Process - Blog - Mills-Scofield LLC - Innovanomics, strategic alignment for innovation - 0 views

mills-scofield.com/...ry-the-scientific-process.html

design theory scientific method interdisciplinary

shared by Emily Freilich on 21 Oct 13 - No Cached
  • I am sitting across the table from my thesis advisor. We stare at one another in silence, our faces reflecting equal levels of frustration. After a 15-minute debate on the differences between a parameter and a constraint, it has become apparent my advisor is an engineer, and I am not. My advisor and I meet weekly to discuss my research. Each week we inevitably hit a wall; expressing the same words, but interpreting them in entirely different ways. With a background in biology and design, my definition of details often do not align with an engineer’s. However, we both know the objectives of my thesis, and both want to work towards that goal (and diploma)  So why are we having such a difficult time communicating?
  • ealization that our different disciplines do not speak the same language.
  • There was never room for another subject like art, no space for speaking two languages fluently. My educational system created silos between the different disciplines. Once I chose one path, essentially my language, other subjects became foreign.
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  • Connections are missing between these disciplines, and in particular between the arts and sciences. On almost every project I have worked on thus far, my analytical and creative teammates have struggled to connect.
  • it would be extremely naïve to think that type of interdisciplinary education can be implemented everywhere - and nor should it be. We still need the classically trained “quant jocks” as well as the “edgy creatives”. Without them, a melting pot of full-fledged hybrids such as myself would lose any sort of concrete base for reference.
  • So where do we go from here? I believe each individual, no matter how much of a purist they may be in their respective field, should be responsible for entertaining interdisciplinary ideas.
  • n an era where buzzwords like “collaboration” and “innovation” land you a job, its time to actually start flexing both sides of our brains. At the end of this journey, behind our various languages, it is surprising how similar my analytical and creative peers are.
  • The proof can be found just looking at the scientific process alongside design theory.
  • Although one approach may rely more on quantifiable data and the other on a more “human” means of communication, step by step the two share striking similarities. Combining these two theories helps me personally make sense of my own analytical and creative brain. When they come together as one scientific and artistic critical thinking tool, the result is a deeper understanding of defining problems and finding solutions.
grayton downing

In Syria, Doctors Risk Life and Juggle Ethics - NYTimes.com - 1 views

www.nytimes.com/...sk-life-and-juggle-ethics.html

syria doctors life ethics science research social media

shared by grayton downing on 22 Oct 13 - No Cached
  • Majid, who gave only his first name to protect his safety, collected hair and urine samples, clothing, tree leaves, soil and even a dead bird. He shared it with the Syrian American Medical Society, a humanitarian group that had been delivering such samples to American intelligence officials, as proof of possible chemical attacks.
  • United Nations inspectors have taken the first steps to destroy Syria’s chemical stockpile.
  • Many Syrian doctors have fled; those who remain describe dire conditions where even the most basic care is not available.
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  • Mothers are desperate to have their children vaccinated; patients with chronic conditions like heart disease and diabetes struggle to get medicine; and there is “huge anxiety in the population,”
  • On Aug. 21, the group got word from some of its “silent partner” hospitals of a flood of patients with “neurotoxic symptoms” — roughly 3,600 in a period of three hours, including 355 who died.
  • The debate over whether doctors should expose human rights abuses has long been “one of these inside baseball arguments within the humanitarian community,” said Len Rubenstein, an expert on human rights and medical ethics at Johns Hopkins University. While Doctors Without Borders has a culture of “bearing witness,” he said, not all humanitarian organizations do.
  • The International Committee of the Red Cross, for instance, adheres to a strict code of political neutrality;
Javier E

How to Invent a Person Online - Curtis Wallen - The Atlantic - 2 views

www.theatlantic.com/...374837

surveillance internet privacy cybersecurity

shared by Javier E on 24 Jul 14 - No Cached
  • Social networks and data brokers use algorithms and probabilities to reconstruct our identities, and then try to influence the way we think and feel and make decisions.
  • t’s not an exaggeration to say everything you do online is being followed. And the more precisely a company can tailor your online experience, the more money it can make from advertisers.
  • After Edward Snowden’s leaks about NSA surveillance, Tucker and Marthews found, the frequency of these sensitive search terms declined—suggesting that Internet users have become less likely to explore "search terms that they [believe] might get them in trouble with the U.S. government." The study also found that people have become less likely to search "embarrassing" topics
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  • In other words, people are doing their best to blend in with the crowd.
  • The challenge of achieving true anonymity, though, is that evading surveillance makes your behavior anomalous—and anomalies stick out. As the Japanese proverb says, "A nail that sticks out gets hammered down." Glenn Greenwald explained recently that simply using encryption can make you a target. For me, this was all the more motivation to disappear.
  • The U.S. Department of Defense has also figured out how influential Facebook and Twitter can be. In 2011, it announced a new “Social Media in Strategic Communication” (SMISC) program to detect and counter information the U.S. government deemed dangerous. “Since everyone is potentially an influencer on social media and is capable of spreading information,” one researcher involved in a SMISC study told The Guardian, “our work aims to identify and engage the right people at the right time on social media to help propagate information when needed.”
  • For those of us who feel confident that we have nothing to hide, the future of Internet security might not seem like a major concern. But we underestimate the many ways in which our online identities can be manipulated.
  • Private companies are also using personal information in hidden ways. They don’t simply learn our tastes and habits, offering us more of what want and less of what we don’t. As Michael Fertik wrote in a 2013 Scientific American article titled “The Rich See a Different Internet Than the Poor,” credit lenders have the ability to hide their offers from people who may need loans the most. And Google now has a patent to change its prices based on who’s buying. 
  • It is essentially impossible to achieve anonymity online. It requires a complete operational posture that extends from the digital to the physical. Downloading a secure messaging app and using Tor won’t all of a sudden make you “NSA-proof.” And doing it right is really, really hard.
  • Weighing these trade-offs in my day-to-day life led to a few behavioral changes, but I have a mostly normal relationship with the Internet—I deleted my Facebook account, I encrypt my emails whenever I can, and I use a handful of privacy minded browser extensions. But even those are steps many people are unwilling, or unable, to take.
Javier E

The M.I.T. Gang - The New York Times - 0 views

www.nytimes.com/...paul-krugman-the-mit-gang.html

economics theory social science Keynes

shared by Javier E on 24 Jul 15 - No Cached
  • what distinguishes M.I.T. economics, and why does it matter? To answer that question, you need to go back to the 1970s, when all the people I’ve just named went to graduate school.
  • At the time, the big issue was the combination of high unemployment with high inflation. The coming of stagflation was a big win for Milton Friedman, who had predicted exactly that outcome if the government tried to keep unemployment too low for too long; it was widely seen, rightly or (mostly) wrongly, as proof that markets get it right and the government should just stay out of the way
  • Or to put it another way, many economists responded to stagflation by turning their backs on Keynesian economics and its call for government action to fight recessions.
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  • At M.I.T., however, Keynes never went away. To be sure, stagflation showed that there were limits to what policy can do. But students continued to learn about the imperfections of markets and the role that monetary and fiscal policy can play in boosting a depressed economy.
  • And the M.I.T. students of the 1970s enlarged on those insights in their later work. Mr. Blanchard, for example, showed how small deviations from perfect rationality can have large economic consequences; Mr. Obstfeld showed that currency markets can sometimes experience self-fulfilling panic.
  • This open-minded, pragmatic approach was overwhelmingly vindicated after crisis struck in 2008. Chicago-school types warned incessantly that responding to the crisis by printing money and running deficits would lead to 70s-type stagflation, with soaring inflation and interest rates. But M.I.T. types predicted, correctly, that inflation and interest rates would stay low in a depressed economy, and that attempts to slash deficits too soon would deepen the slump.
  • The truth, although nobody will believe it, is that the economic analysis some of us learned at M.I.T. way back when has worked very, very well for the past seven years.
  • But has the intellectual success of M.I.T. economics led to comparable policy success? Unfortunately, the answer is no.
  • True, there have been some important monetary successes. The Fed, led by Mr. Bernanke, ignored right-wing pressure and threats — Rick Perry, as governor of Texas, went so far as to accuse him of treason — and pursued an aggressively expansionary policy that helped limit the damage from the financial crisis. In Europe, Mr. Draghi’s activism has been crucial to calming financial markets, probably saving the euro from collapse. Continue reading the main story 215 Comments
  • On other fronts, however, the M.I.T. gang’s good advice has been ignored. The I.M.F.’s research department, under Mr. Blanchard’s leadership, has done authoritative work on the effects of fiscal policy, demonstrating beyond any reasonable doubt that slashing spending in a depressed economy is a terrible mistake, and that attempts to reduce high levels of debt via austerity are self-defeating. But European politicians have slashed spending and demanded crippling austerity from debtors anyway.
  • Meanwhile, in the United States, Republicans have responded to the utter failure of free-market orthodoxy and the remarkably successful predictions of much-hated Keynesians by digging in even deeper, determined to learn nothing from experience.
  • being right isn’t necessarily enough to change the world. But it’s still better to be right than to be wrong, and M.I.T.-style economics, with its pragmatic openness to evidence, has been very right indeed
Javier E

A Billionaire Mathematician's Life of Ferocious Curiosity - The New York Times - 0 views

www.nytimes.com/...fe-of-ferocious-curiosity.html

math creativity proof role model

shared by Javier E on 26 Jul 15 - No Cached
  • James H. Simons likes to play against type. He is a billionaire star of mathematics and private investment who often wins praise for his financial gifts to scientific research and programs to get children hooked on math.But in his Manhattan office, high atop a Fifth Avenue building in the Flatiron district, he’s quick to tell of his career failings.He was forgetful. He was demoted. He found out the hard way that he was terrible at programming computers. “I’d keep forgetting the notation,” Dr. Simons said. “I couldn’t write programs to save my life.”After that, he was fired.His message is clearly aimed at young people: If I can do it, so can you.
  • Down one floor from his office complex is Math for America, a foundation he set up to promote math teaching in public schools. Nearby, on Madison Square Park, is the National Museum of Mathematics, or MoMath, an educational center he helped finance. It opened in 2012 and has had a quarter million visitors.
  • Dr. Simons received his doctorate at 23; advanced code breaking for the National Security Agency at 26; led a university math department at 30; won geometry’s top prize at 37; founded Renaissance Technologies, one of the world’s most successful hedge funds, at 44; and began setting up charitable foundations at 56.
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  • With a fortune estimated at $12.5 billion, Dr. Simons now runs a tidy universe of science endeavors, financing not only math teachers but hundreds of the world’s best investigators, even as Washington has reduced its support for scientific research. His favorite topics include gene puzzles, the origins of life, the roots of autism, math and computer frontiers, basic physics and the structure of the early cosmos.
  • In time, his novel approach helped change how the investment world looks at financial markets. The man who “couldn’t write programs” hired a lot of programmers, as well as physicists, cryptographers, computational linguists, and, oh yes, mathematicians. Wall Street experience was frowned on. A flair for science was prized. The techies gathered financial data and used complex formulas to make predictions and trade in global markets.
  • Working closely with his wife, Marilyn, the president of the Simons Foundation and an economist credited with philanthropic savvy, Dr. Simons has pumped more than $1 billion into esoteric projects as well as retail offerings like the World Science Festival and a scientific lecture series at his Fifth Avenue building. Characteristically, it is open to the public.
  • On a wall in Dr. Simons’s office is one of his prides: a framed picture of equations known as Chern-Simons, after a paper he wrote with Shiing-Shen Chern, a prominent geometer. Four decades later, the equations define many esoteric aspects of modern physics, including advanced theories of how invisible fields like those of gravity interact with matter to produce everything from superstrings to black holes.
  • “He’s an individual of enormous talent and accomplishment, yet he’s completely unpretentious,” said Marc Tessier-Lavigne, a neuroscientist who is the president of Rockefeller University. “He manages to blend all these admirable qualities.”
  • Forbes magazine ranks him as the world’s 93rd richest person — ahead of Eric Schmidt of Google and Elon Musk of Tesla Motors, among others — and in 2010, he and his wife were among the first billionaires to sign the Giving Pledge, promising to devote “the great majority” of their wealth to philanthropy.
  • For all his self-deprecations, Dr. Simons does credit himself with a contemplative quality that seems to lie behind many of his accomplishments.“I wasn’t the fastest guy in the world,” Dr. Simons said of his youthful math enthusiasms. “I wouldn’t have done well in an Olympiad or a math contest. But I like to ponder. And pondering things, just sort of thinking about it and thinking about it, turns out to be a pretty good approach.”
Javier E

Naomi Oreskes, a Lightning Rod in a Changing Climate - The New York Times - 0 views

www.nytimes.com/...rod-in-a-changing-climate.html

science scientific method denial climate change conservatism ideology research

shared by Javier E on 16 Jun 15 - No Cached
  • Dr. Oreskes is fast becoming one of the biggest names in climate science — not as a climatologist, but as a defender who uses the tools of historical scholarship to counter what she sees as ideologically motivated attacks on the field.
  • Formally, she is a historian of science
  • Dr. Oreskes’s approach has been to dig deeply into the history of climate change denial, documenting its links to other episodes in which critics challenged a developing scientific consensus.
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  • Her core discovery, made with a co-author, Erik M. Conway, was twofold. They reported that dubious tactics had been used over decades to cast doubt on scientific findings relating to subjects like acid rain, the ozone shield, tobacco smoke and climate change. And most surprisingly, in each case, the tactics were employed by the same group of people.
  • The central players were serious scientists who had major career triumphs during the Cold War, but in subsequent years apparently came to equate environmentalism with socialism, and government regulation with tyranny.
  • In a 2010 book, Dr. Oreskes and Dr. Conway called these men “Merchants of Doubt,” and this spring the book became a documentary film, by Robert Kenner. At the heart of both works is a description of methods that were honed by the tobacco industry in the 1960s and have since been employed to cast doubt on just about any science being cited to support new government regulations.
  • Dr. Oreskes, the more visible and vocal of the “Merchants” authors, has been threatened with lawsuits and vilified on conservative websites, and routinely gets hate mail calling her a communist or worse.
  • She established her career as a historian with a book-length study examining the role of dissent in the scientific method. As she put it a few months ago to an audience at Indiana University, she wanted to wrestle with this question: “How do you distinguish a maverick from a crank?”
  • Dr. Oreskes found that Wegener had been treated badly, particularly by American geologists. But he did not abandon his faith in the scientific method. He kept publishing until his death in 1930, trying to convince fellow scientists of his position, and was finally vindicated three decades later by oceanographic research conducted during the Cold War.
  • As she completed that study, Dr. Oreskes sought to understand how science was affected not only by the Cold War but by its end. In particular, she started wondering about climate science. Global warming had seemed to rise as an important issue around the time the Iron Curtain came down. Was this just a way for scientists to scare up research money that would no longer be coming their way through military channels?
  • the widespread public impression was that scientists were still divided over whether humans were primarily responsible for the warming of the planet. But how sharp was the split, she wondered?
  • She decided to do something no climate scientist had thought to do: count the published scientific papers. Pulling 928 of them, she was startled to find that not one dissented from the basic findings that warming was underway and human activity was the main reason.
  • She published that finding in a short paper in the journal Science in 2004, and the reaction was electric. Advocates of climate action seized on it as proof of a level of scientific consensus that most of them had not fully perceived. Just as suddenly, Dr. Oreskes found herself under political attack.
  • Some of the voices criticizing her — scientists like Dr. Singer and groups like the George C. Marshall Institute in Washington — were barely known to her at the time, Dr. Oreskes said in an interview. Just who were they?
  • It did not take them long to document that this group, which included prominent Cold War scientists, had been attacking environmental research for decades, challenging the science of the ozone layer and acid rain, even the finding that breathing secondhand tobacco smoke was harmful. Trying to undermine climate science was simply the latest project.
  • Dr. Oreskes and Dr. Conway came to believe that the attacks were patterned on the strategy employed by the tobacco industry when evidence of health risks first emerged. Documents pried loose by lawyers showed that the industry had paid certain scientists to contrive dubious research, had intimidated reputable scientists, and had cherry-picked evidence to present a misleading pictur
  • The tobacco industry had used these tactics in defense of profits. But Dr. Oreskes and Dr. Conway wrote that the so-called merchants of doubt had adopted them for a deep ideological reason: contempt for government regulation. The insight gave climate scientists a new way of understanding the politics that had engulfed their field.
  • Following Dr. Oreskes’s cue, researchers have in recent years developed a cottage industry of counting scientific papers and polling scientists. The results typically show that about 97 percent of working climate scientists accept that global warming is happening, that humans are largely responsible, and that the situation poses long-term risks, though the severity of those risks is not entirely clear. That wave of evidence has prompted many national news organizations to stop portraying the field as split evenly between scientists who are convinced and unconvinced.
  • Dr. Oreskes’s critics have taken delight in searching out errors in her books and other writings, prompting her to post several corrections. They have generally been minor, though, like describing a pH of six as neutral, when the correct number is seven. Dr. Oreskes described that as a typographical error.
  • In the leaked emails, Dr. Singer told a group of his fellow climate change denialists that he felt that Dr. Oreskes and Dr. Conway had libeled him. But in an interview, when pressed for specific errors in the book that might constitute libel, he listed none. Nor did he provide such a list in response to a follow-up email request.
  • However much she might be hated by climate change denialists, Dr. Oreskes is often welcomed on college campuses these days. She usually outlines the decades of research supporting the idea that human emissions pose serious risks.
  • “One of the things that should always be asked about scientific evidence is, how old is it?” Dr. Oreskes said. “It’s like wine. If the science about climate change were only a few years old, I’d be a skeptic, too.”
  • Dr. Oreskes and Dr. Conway keep looking for ways to reach new audiences. Last year, they published a short work of science fiction, written as a historical essay from the distant future. “The Collapse of Western Civilization: A View From the Future” argues that conservatives, by fighting sensible action to cope with the climate crisis, are essentially guaranteeing the long-term outcome they fear, a huge expansion of government.
Javier E

Regulating Sex - The New York Times - 0 views

www.nytimes.com/...-shulevitz-regulating-sex.html

sexual ethics law consent psychology rape

shared by Javier E on 29 Jun 15 - No Cached
  • THIS is a strange moment for sex in America. We’ve detached it from pregnancy, matrimony and, in some circles, romance. At least, we no longer assume that intercourse signals the start of a relationship.
  • But the more casual sex becomes, the more we demand that our institutions and government police the line between what’s consensual and what isn’t. And we wonder how to define rape. Is it a violent assault or a violation of personal autonomy? Is a person guilty of sexual misconduct if he fails to get a clear “yes” through every step of seduction and consummation?
  • According to the doctrine of affirmative consent — the “yes means yes” rule — the answer is, well, yes, he is.
  • ...22 more annotations...
  • if one person can think he’s hooking up while the other feels she’s being raped, it makes sense to have a law that eliminates the possibility of misunderstanding. “You shouldn’t be allowed to make the assumption that if you find someone lying on a bed, they’re free for sexual pleasure,”
  • About a quarter of all states, and the District of Columbia, now say sex isn’t legal without positive agreement,
  • And though most people think of “yes means yes” as strictly for college students, it is actually poised to become the law of the land.
  • Some new crimes outlined in the proposed code, for example, assume consent to be meaningless under conditions of unequal power. Consensual sex between professionals (therapists, lawyers and the like) and their patients and clients, for instance, would be a fourth-degree felony, punishable by significant time in prison.
  • Should we really put people in jail for not doing what most people aren’t doing? (Or at least, not yet?)
  • It’s one thing to teach college students to talk frankly about sex and not to have it without demonstrable pre-coital assent. Colleges are entitled to uphold their own standards of comportment, even if enforcement of that behavior is spotty or indifferent to the rights of the accused. It’s another thing to make sex a crime under conditions of poor communication.
  • Most people just aren’t very talkative during the delicate tango that precedes sex, and the re-education required to make them more forthcoming would be a very big project. Nor are people unerringly good at decoding sexual signals. If they were, we wouldn’t have romantic comedies.
  • “If there’s no social consensus about what the lines are,” says Nancy Gertner, a senior lecturer at Harvard Law School and a retired judge, then affirmative consent “has no business being in the criminal law.”
  • The example points to a trend evident both on campuses and in courts: the criminalization of what we think of as ordinary sex and of sex previously considered unsavory but not illegal.
  • But criminal law is a very powerful instrument for reshaping sexual mores.
  • most of these occupations already have codes of professional conduct, and victims also have recourse in the civil courts. Miscreants, she says, “should be drummed out of the profession or sued for malpractice.”
  • It’s important to remember that people convicted of sex crimes may not only go to jail, they can wind up on a sex-offender registry, with dire and lasting consequences.
  • We shouldn’t forget the harm done to American communities by the national passion for incarceration, either. In a letter to the American Law Institute, Ms. Smith listed several disturbing statistics: roughly one person in 100 behind bars, one in 31 under correctional supervision
  • the case for affirmative consent is “compelling,” he says. Mr. Schulhofer has argued that being raped is much worse than having to endure that awkward moment when one stops to confirm that one’s partner is happy to continue. Silence or inertia, often interpreted as agreement, may actually reflect confusion, drunkenness or “frozen fright,” a documented physiological response in which a person under sexual threat is paralyzed by terror
  • To critics who object that millions of people are having sex without getting unqualified assent and aren’t likely to change their ways, he’d reply that millions of people drive 65 miles per hour despite a 55-mile-per-hour speed limit, but the law still saves lives. As long as “people know what the rules of the road are,” he says, “the overwhelming majority will comply with them.”
  • He understands that the law will have to bring a light touch to the refashioning of sexual norms, which is why the current draft of the model code suggests classifying penetration without consent as a misdemeanor, a much lesser crime than a felony.
  • This may all sound reasonable, but even a misdemeanor conviction goes on the record as a sexual offense and can lead to registration
  • An affirmative consent standard also shifts the burden of proof from the accuser to the accused, which represents a real departure from the traditions of criminal law in the United States. Affirmative consent effectively means that the accused has to show that he got the go-ahead
  • if the law requires a “no,” then the jury will likely perceive any uncertainty about that “no” as a weakness in the prosecution’s case and not convict. But if the law requires a “yes,” then ambiguity will bolster the prosecutor’s argument: The guy didn’t get unequivocal consent, therefore he must be guilty of rape.
  • “It’s an unworkable standard,” says the Harvard law professor Jeannie C. Suk. “It’s only workable if we assume it’s not going to be enforced, by and large.” But that’s worrisome too. Selectively enforced laws have a nasty history of being used to harass people deemed to be undesirable, because of their politics, race or other reasons.
  • it’s probably just a matter of time before “yes means yes” becomes the law in most states. Ms. Suk told me that she and her colleagues have noticed a generational divide between them and their students. As undergraduates, they’re learning affirmative consent in their mandatory sexual-respect training sessions, and they come to “believe that this really is the best way to define consent, as positive agreement,” she says. When they graduate and enter the legal profession, they’ll probably reshape the law to reflect that belief.
  • Sex may become safer for some, but it will be a whole lot more anxiety-producing for others.
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