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Javier E

Predicting the Future Is Easier Than It Looks - By Michael D. Ward and Nils Metternich ... - 0 views

  • The same statistical revolution that changed baseball has now entered American politics, and no one has been more successful in popularizing a statistical approach to political analysis than New York Times blogger Nate Silver, who of course cut his teeth as a young sabermetrician. And on Nov. 6, after having faced a torrent of criticism from old-school political pundits -- Washington's rough equivalent of statistically illiterate tobacco chewing baseball scouts -- the results of the presidential election vindicated Silver's approach, which correctly predicted the electoral outcome in all 50 states.
  • Today, there are several dozen ongoing, public projects that aim to in one way or another forecast the kinds of things foreign policymakers desperately want to be able to predict: various forms of state failure, famines, mass atrocities, coups d'état, interstate and civil war, and ethnic and religious conflict. So while U.S. elections might occupy the front page of the New York Times, the ability to predict instances of extreme violence and upheaval represent the holy grail of statistical forecasting -- and researchers are now getting close to doing just that.
  • In 2010 scholars from the Political Instability Task Force published a report that demonstrated the ability to correctly predict onsets of instability two years in advance in 18 of 21 instances (about 85%)
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  • Let's consider a case in which Ulfelder argues there is insufficient data to render a prediction -- North Korea. There is no official data on North Korean GDP, so what can we do? It turns out that the same data science approaches that were used to aggregate polls have other uses as well. One is the imputation of missing data. Yes, even when it is all missing. The basic idea is to use the general correlations among data that you do have to provide an aggregate way of estimating information that we don't have.
  • In 2012 there were two types of models: one type based on fundamentals such as economic growth and unemployment and another based on public opinion surveys
  • As it turned out, in this month's election public opinion polls were considerably more precise than the fundamentals. The fundamentals were not always providing bad predictions, but better is better.
  • There is a tradition in world politics to go either back until the Congress of Vienna (when there were fewer than two dozen independent countries) or to the early 1950s after the end of the Second World War. But in reality, there is no need to do this for most studies.
  • Ulfelder tells us that "when it comes to predicting major political crises like wars, coups, and popular uprisings, there are many plausible predictors for which we don't have any data at all, and much of what we do have is too sparse or too noisy to incorporate into carefully designed forecasting models." But this is true only for the old style of models based on annual data for countries. If we are willing to face data that are collected in rhythm with the phenomena we are studying, this is not the case
Grace Carey

Buddhist Meditation - 0 views

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    Much of this makes me think of TOK issues, especially the parts discussing all of life being an illusion or hallucination. "Physics, by showing that the realm of phenomena we know through these channels of cognition (sense perception) does not really correspond to the physical world known to science, has confirmed this Buddhist truth. "
Javier E

Is Confidence in Science as a Source of Progress Based on Faith or Fact? - NYTimes.com - 3 views

  • There’s been a range of interesting reactions to my piece on Pete Seeger’s question about whether confidence in science as a source of human progress is underpinned by fact or faith.
  • the discussion was not about confidence in science as an enterprise, but confidence that benefits would always accrue to society from applications of scientific knowledge
  • Theologically speaking, science constantly reminds us of the sense in which we are nearly – but clearly not quite – gods. Perhaps the trickiest value issues surrounding science are hidden behind the seemingly innocent metaphors of ‘getting into the mind of God’ (physics) and ‘playing God’ (biomedicine). Notwithstanding scientists’ own disclaimers, as a matter of fact science has done as well as it has because scientists have adopted a ‘godlike’ attitude toward nature. We have allowed ourselves to imagine and intervene in things at very high levels of abstraction and in ways that can only be justified in terms of the power unleashed by the resulting systematic view of things. The costs incurred have included devaluing our most immediate experiences of nature and subjecting things to quite artificial conditions in order to extract knowledge.
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  • For Francis Bacon and the other early Scientific Revolutionaries, this was a fair price to pay for doing divine work – God, after all, was thought to be himself transcendent and perhaps even alienated from nature. But without this theistic assumption, it becomes difficult to justify the unfettered pursuit of science, once both the costs and benefits are each given their due. Of course, we could simply say that science is what turns humans into gods. For all its hubris, this response would at least possess the virtues of candor and consistency. As it stands, scientists shy away from any such strong self-understandings, preferring to hide behind more passive accounts of their activities – e.g. they ‘describe’ rather than generate phenomena, they ‘explain’ rather than justify nature, etc. Lost in this secular translation of an originally sacred mission is the scientist’s sense of personal responsibility qua scientist.
  • Rather than thinking of science as a “force for good”, we should think of it as an inherent human activity, like com
  • merce.
carolinewren

The Reality of Quantum Weirdness - NYTimes.com - 2 views

  • Is there a true story, or is our belief in a definite, objective, observer-independent reality an illusion?
  • Is there a fixed reality apart from our various observations of it? Or is reality nothing more than a kaleidoscope of infinite possibilities?
  • So an electron is a wave, not a particle?
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  • each electron somehow acts like a wave interfering with itself, as if it is simultaneously passing through both slits at once.
  • the electrons go back to their wavelike behavior, and the interference pattern miraculously reappears.
  • Instead, we see two lumps on the screen, as if the electrons, suddenly aware of being observed, decided to act like little pellets.
  • . For an individual particle like an electron, for example, the wave function provides information about the probabilities that the particle can be observed at particular locations, as well as the probabilities of the results of other measurements of the particle that you can make, such as measuring its momentum.
  • If the wave function is merely knowledge-based, then you can explain away odd quantum phenomena by saying that things appear to us this way only because our knowledge of the real state of affairs is insufficient.
  • If there is an objective reality at all, the paper demonstrates, then the wave function is in fact reality-based.
  • We should be careful to recognize that the weirdness of the quantum world does not directly imply the same kind of weirdness in the world of everyday experience. That’s because the nebulous quantum essence of individual elementary particles is known to quickly dissipate in large ensembles of particles (a phenomenon often referred to as “decoherence”).
Javier E

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

  • 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.
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  • 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.”
  • 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.
  • 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
  • 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.
  • 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.”
  • 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.
  • 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.
  • 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.
  • 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. ♦
dicindioha

BBC - Future - The strange case of the phantom Pokemon - 0 views

  • Her terrifying hallucination reveals the mysterious 'twilight zone' between waking and sleep — a strange state of consciousness that may also lie behind various phenomena, from the Salem Witch Trials to alien abductions.
  • But my first thought, as an experimental psychologist with a particular focus in anomalous perceptual experiences was, “Well, that could have happened to anybody.” Although it’s impossible to definitively explain this woman’s experience, I nevertheless felt quite confident that this late-night Pokemon assault fit neatly into our existing understanding of sleep.
  • The short, seemingly paradoxical, explanation is that she could have been awake and she could have been dreaming.
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  • The technical term that might apply here is ‘sleep paralysis,’ a subtype of parasomnia, or sleep disturbance. Beyond the inability to move, these periods of wakeful paralysis are often accompanied with vivid multisensory hallucinations.
  • Effectively, imagery from your dreams can actually intrude into your waking reality.
  • Records of incidents attributable to sleep paralysis can actually be found throughout history and across cultures with records dating back at least as far as 400 BC.
  • For comparison’s sake, consider this account by Jon Loudner, who gave ‘evidence’ during the infamous Salem Witch Trials in 1692:
  • Witchcraft is a less popular explanation for contemporary sufferers, but even today, the precise physiological mechanisms that result in sleep paralysis are still not entirely understood.
  • a circuit breaker; it effectively blocks your brain’s motor planning signals from becoming motor action signals
  • However, our brains are highly complex systems, and, as such, are prone to the occasional glitch.
  • Researchers have shown that sleep paralysis experiences can be induced in laboratory participants when they are repeatedly woken from deep sleep.
  • Given their highly subjective nature, dreams are notoriously difficult to study scientifically.
  • In fact, the connection between video games and dreams is one of the better documented areas of research on the subjective experiences of dreamers. 
  • This evidence has been used to support the idea that sleeping might serve to ‘consolidate’ memories from our waking life - consolidation is term that refers to the process of reinforcing and strengthening newly created memories.
  • Various experiments have demonstrated that people who are given memory-based tasks will perform better if they’re given the opportunity to sleep after learning
  • In both rats and humans, the hippocampus is the part of the brain, which among other functions, is strongly associated with the way we form memories of physical spaces.
  • As the rats slept, the cells in the hippocampus would light up with activity. And not just any activity – the patterns of activations that occurred while the rats slept corresponded with the pattern associated with the correct maze runs
  • One caveat is that none of this work proves a direct causal link between dreaming and memories: dreaming itself might not cause the memories to be reinforced, but could simply be a kind of side-effect of the consolidation process. 
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    Our experiences in daily life can translate to our dreams, and having dreams that relate to something that recently occurred to someone might support the idea that sleeping functions to process and reinforce new memories.
Javier E

Eric A. Posner Reviews Jim Manzi's "Uncontrolled" | The New Republic - 0 views

  • Most urgent questions of public policy turn on empirical imponderables, and so policymakers fall back on ideological predispositions or muddle through. Is there a better way?
  • The gold standard for empirical research is the randomized field trial (RFT).
  • The RFT works better than most other types of empirical investigation. Most of us use anecdotes or common sense empiricism to make inferences about the future, but psychological biases interfere with the reliability of these methods
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  • Serious empiricists frequently use regression analysis.
  • Regression analysis is inferior to RFT because of the difficulty of ruling out confounding factors (for example, that a gene jointly causes baldness and a preference for tight hats) and of establishing causation
  • RFT has its limitations as well. It is enormously expensive because you must (usually) pay a large number of people to participate in an experiment, though one can obtain a discount if one uses prisoners, especially those in a developing country. In addition, one cannot always generalize from RFTs.
  • academic research proceeds in fits and starts, using RFT when it can, but otherwise relying on regression analysis and similar tools, including qualitative case studies,
  • businesses also use RFT whenever they can. A business such as Wal-Mart, with thousands of stores, might try out some innovation like a new display in a random selection of stores, using the remaining stores as a control group
  • Manzi argues that the RFT—or more precisely, the overall approach to empirical investigation that the RFT exemplifies—provides a way of thinking about public policy. Thi
  • the universe is shaky even where, as in the case of physics, “hard science” plays the dominant role. The scientific method cannot establish truths; it can only falsify hypotheses. The hypotheses come from our daily experience, so even when science prunes away intuitions that fail the experimental method, we can never be sure that the theories that remain standing reflect the truth or just haven’t been subject to the right experiment. And even within its domain, the experimental method is not foolproof. When an experiment contradicts received wisdom, it is an open question whether the wisdom is wrong or the experiment was improperly performed.
  • The book is less interested in the RFT than in the limits of empirical knowledge. Given these limits, what attitude should we take toward government?
  • Much of scientific knowledge turns out to depend on norms of scientific behavior, good faith, convention, and other phenomena that in other contexts tend to provide an unreliable basis for knowledge.
  • Under this view of the world, one might be attracted to the cautious conservatism associated with Edmund Burke, the view that we should seek knowledge in traditional norms and customs, which have stood the test of time and presumably some sort of Darwinian competition—a human being is foolish, the species is wise. There are hints of this worldview in Manzi’s book, though he does not explicitly endorse it. He argues, for example, that we should approach social problems with a bias for the status quo; those who seek to change it carry the burden of persuasion. Once a problem is identified, we should try out our ideas on a small scale before implementing them across society
  • Pursuing the theme of federalism, Manzi argues that the federal government should institutionalize policy waivers, so states can opt out from national programs and pursue their own initiatives. A state should be allowed to opt out of federal penalties for drug crimes, for example.
  • It is one thing to say, as he does, that federalism is useful because we can learn as states experiment with different policies. But Manzi takes away much of the force of this observation when he observes, as he must, that the scale of many of our most urgent problems—security, the economy—is at the national level, so policymaking in response to these problems cannot be left to the states. He also worries about social cohesion, which must be maintained at a national level even while states busily experiment. Presumably, this implies national policy of some sort
  • Manzi’s commitment to federalism and his technocratic approach to policy, which relies so heavily on RFT, sit uneasily together. The RFT is a form of planning: the experimenter must design the RFT and then execute it by recruiting subjects, paying them, and measuring and controlling their behavior. By contrast, experimentation by states is not controlled: the critical element of the RFT—randomization—is absent.
  • The right way to go would be for the national government to conduct experiments by implementing policies in different states (or counties or other local units) by randomizing—that is, by ordering some states to be “treatment” states and other states to be “control” states,
  • Manzi’s reasoning reflects the top-down approach to social policy that he is otherwise skeptical of—although, to be sure, he is willing to subject his proposals to RFTs.
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

The politics and philosophy of racism: Grand Racist Party? | The Economist - 0 views

  • At best, Republicans on the whole are slightly more likely to have opinions commonly believed to be racist, and that is far from undeniable.
  • In my experience, the real crux of the left-right divide on policies with fraught racial dimensions, such as welfare or affirmative action, is the question of structural coercion.
  • I used to think that if negative rights to non-interference were strictly observed, liberty was guaranteed, but I don't now. Here's how I had thought about the matter. One racist acting in a private capacity on his or her racist beliefs can't violate anyone's legitimate, negative rights. (No one is entitled to another's good opinion!) Two racists acting as private citizens on their racist beliefs can't violate anyone's rights. Therefore, I inferred, thousands or millions of racists acting non-coercively on their racist beliefs can't coercively violate anyone's rights. I now think this is quite wrongheaded.
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  • Eventually I realised that actions that are individually non-coercive can add up to stable patterns of behaviour that are systematically or structurally coercive, depriving some individuals of their rightful liberty. In fact, rights-violating structures or patterns of behaviour are excellent examples of Hayekian spontaneous orders—of phenomena that are the product of human action, but not of human design. This shift has led me to see racism and sexism themselves as threats to liberty. Racism and sexism have come to matter more to me in that I have come to see them in terms of the political value that matters most to me: liberty. And so I have become much more sympathetic to policies that would limit individual liberty in order to suppress patterns or norms of behaviour that might pose an even greater threat to freedom. So I've become fairly friendly toward federal anti-discrimination law, affirmative action, Title 9, the works. I have found that this sympathy, together with my belief in the theoretical possibility and historical reality of structural coercion, releases me almost entirely from the liberal suspicion that I'm soft on racism (even if I do wish to voucherise Medicare).
  • this shift in conviction has almost nothing at all to do with a shift in attitude toward any group of people. I say "almost" because it has required that I come to see victims of structural coercion as real victims, really wronged, and thus to see the demand for reform and redress as both legitimate and urgently necessary. And this makes no small difference in one's relationship to those who see it the same way.
Javier E

New Statesman - All machine and no ghost? - 0 views

  • More subtly, there are many who insist that consciousness just reduces to brain states - a pang of regret, say, is just a surge of chemicals across a synapse. They are collapsers rather than deniers. Though not avowedly eliminative, this kind of view is tacitly a rejection of the very existence of consciousness
  • it occurred to me that the problem might lie not in nature but in ourselves: we just don't have the faculties of comprehension that would enable us to remove the sense of mystery. Ontologically, matter and consciousness are woven intelligibly together but epistemologically we are precluded from seeing how. I used Noam Chomsky's notion of "mysteries of nature" to describe the situation as I saw it. Soon, I was being labelled (by Owen Flanagan) a "mysterian"
  • Dualism makes the mind too separate, thereby precluding intelligible interaction and dependence.
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  • At this point the idealist swooshes in: ladies and gentlemen, there is nothing but mind! There is no problem of interaction with matter because matter is mere illusion
  • idealism has its charms but taking it seriously requires an antipathy to matter bordering on the maniacal. Are we to suppose that material reality is just a dream, a baseless fantasy, and that the Big Bang was nothing but the cosmic spirit having a mental sneezing fit?
  • pan­psychism: even the lowliest of material things has a streak of sentience running through it, like veins in marble. Not just parcels of organic matter, such as lizards and worms, but also plants and bacteria and water molecules and even electrons. Everything has its primitive feelings and minute allotment of sensation.
  • The trouble with panpsychism is that there just isn't any evidence of the universal distribution of consciousness in the material world.
  • The dualist, by contrast, freely admits that consciousness exists, as well as matter, holding that reality falls into two giant spheres. There is the physical brain, on the one hand, and the conscious mind, on the other: the twain may meet at some point but they remain distinct entities.
  • The more we know of the brain, the less it looks like a device for creating consciousness: it's just a big collection of biological cells and a blur of electrical activity - all machine and no ghost.
  • mystery is quite pervasive, even in the hardest of sciences. Physics is a hotbed of mystery: space, time, matter and motion - none of it is free of mysterious elements. The puzzles of quantum theory are just a symptom of this widespread lack of understanding
  • The human intellect grasps the natural world obliquely and glancingly, using mathematics to construct abstract representations of concrete phenomena, but what the ultimate nature of things really is remains obscure and hidden. How everything fits together is particularly elusive, perhaps reflecting the disparate cognitive faculties we bring to bear on the world (the senses, introspection, mathematical description). We are far from obtaining a unified theory of all being and there is no guarantee that such a theory is accessible by finite human intelligence.
  • real naturalism begins with a proper perspective on our specifically human intelligence. Palaeoanthropologists have taught us that the human brain gradually evolved from ancestral brains, particularly in concert with practical toolmaking, centring on the anatomy of the human hand. This history shaped and constrained the form of intelligence now housed in our skulls (as the lifestyle of other species form their set of cognitive skills). What chance is there that an intelligence geared to making stone tools and grounded in the contingent peculiarities of the human hand can aspire to uncover all the mysteries of the universe? Can omniscience spring from an opposable thumb? It seems unlikely, so why presume that the mysteries of consciousness will be revealed to a thumb-shaped brain like ours?
  • The "mysterianism" I advocate is really nothing more than the acknowledgment that human intelligence is a local, contingent, temporal, practical and expendable feature of life on earth - an incremental adaptation based on earlier forms of intelligence that no one would reg
  • rd as faintly omniscient. The current state of the philosophy of mind, from my point of view, is just a reflection of one evolutionary time-slice of a particular bipedal species on a particular humid planet at this fleeting moment in cosmic history - as is everything else about the human animal. There is more ignorance in it than knowledge.
Javier E

Let's Shake Up the Social Sciences - NYTimes.com - 1 views

  • everyone knows that monopoly power is bad for markets, that people are racially biased and that illness is unequally distributed by social class. There are diminishing returns from the continuing study of many such topics. And repeatedly observing these phenomena does not help us fix them.
  • social scientists should devote a small palace guard to settled subjects and redeploy most of their forces to new fields like social neuroscience, behavioral economics, evolutionary psychology and social epigenetics, most of which, not coincidentally, lie at the intersection of the natural and social science
  • It is time to create new social science departments that reflect the breadth and complexity of the problems we face as well as the novelty of 21st-century science. These would include departments of biosocial science, network science, neuroeconomics, behavioral genetics and computational social science.
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  • Nicholas A. Christakis, a physician and sociologist at Yale University, is a co-director of the Yale Institute for Network Science.
Javier E

Why Are Hundreds of Harvard Students Studying Ancient Chinese Philosophy? - Christine G... - 0 views

  • Puett's course Classical Chinese Ethical and Political Theory has become the third most popular course at the university. The only classes with higher enrollment are Intro to Economics and Intro to Computer Science.
  • the class fulfills one of Harvard's more challenging core requirements, Ethical Reasoning. It's clear, though, that students are also lured in by Puett's bold promise: “This course will change your life.”
  • Puett uses Chinese philosophy as a way to give undergraduates concrete, counter-intuitive, and even revolutionary ideas, which teach them how to live a better life. 
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  • Puett puts a fresh spin on the questions that Chinese scholars grappled with centuries ago. He requires his students to closely read original texts (in translation) such as Confucius’s Analects, the Mencius, and the Daodejing and then actively put the teachings into practice in their daily lives. His lectures use Chinese thought in the context of contemporary American life to help 18- and 19-year-olds who are struggling to find their place in the world figure out how to be good human beings; how to create a good society; how to have a flourishing life. 
  • Puett began offering his course to introduce his students not just to a completely different cultural worldview but also to a different set of tools. He told me he is seeing more students who are “feeling pushed onto a very specific path towards very concrete career goals”
  • Puett tells his students that being calculating and rationally deciding on plans is precisely the wrong way to make any sort of important life decision. The Chinese philosophers they are reading would say that this strategy makes it harder to remain open to other possibilities that don’t fit into that plan.
  • Students who do this “are not paying enough attention to the daily things that actually invigorate and inspire them, out of which could come a really fulfilling, exciting life,” he explains. If what excites a student is not the same as what he has decided is best for him, he becomes trapped on a misguided path, slated to begin an unfulfilling career.
  • He teaches them that:   The smallest actions have the most profound ramifications. 
  • From a Chinese philosophical point of view, these small daily experiences provide us endless opportunities to understand ourselves. When we notice and understand what makes us tick, react, feel joyful or angry, we develop a better sense of who we are that helps us when approaching new situations. Mencius, a late Confucian thinker (4th century B.C.E.), taught that if you cultivate your better nature in these small ways, you can become an extraordinary person with an incredible influence
  • Decisions are made from the heart. Americans tend to believe that humans are rational creatures who make decisions logically, using our brains. But in Chinese, the word for “mind” and “heart” are the same.
  • If the body leads, the mind will follow. Behaving kindly (even when you are not feeling kindly), or smiling at someone (even if you aren’t feeling particularly friendly at the moment) can cause actual differences in how you end up feeling and behaving, even ultimately changing the outcome of a situation.
  • In the same way that one deliberately practices the piano in order to eventually play it effortlessly, through our everyday activities we train ourselves to become more open to experiences and phenomena so that eventually the right responses and decisions come spontaneously, without angst, from the heart-mind.
  • Whenever we make decisions, from the prosaic to the profound (what to make for dinner; which courses to take next semester; what career path to follow; whom to marry), we will make better ones when we intuit how to integrate heart and mind and let our rational and emotional sides blend into one. 
  • Aristotle said, “We are what we repeatedly do,” a view shared by thinkers such as Confucius, who taught that the importance of rituals lies in how they inculcate a certain sensibility in a person.
  • “The Chinese philosophers we read taught that the way to really change lives for the better is from a very mundane level, changing the way people experience and respond to the world, so what I try to do is to hit them at that level. I’m not trying to give my students really big advice about what to do with their lives. I just want to give them a sense of what they can do daily to transform how they live.”
  • Their assignments are small ones: to first observe how they feel when they smile at a stranger, hold open a door for someone, engage in a hobby. He asks them to take note of what happens next: how every action, gesture, or word dramatically affects how others respond to them. Then Puett asks them to pursue more of the activities that they notice arouse positive, excited feelings.
  • Once they’ve understood themselves better and discovered what they love to do they can then work to become adept at those activities through ample practice and self-cultivation. Self-cultivation is related to another classical Chinese concept: that effort is what counts the most, more than talent or aptitude. We aren’t limited to our innate talents; we all have enormous potential to expand our abilities if we cultivate them
  • To be interconnected, focus on mundane, everyday practices, and understand that great things begin with the very smallest of acts are radical ideas for young people living in a society that pressures them to think big and achieve individual excellence.
  • One of Puett’s former students, Adam Mitchell, was a math and science whiz who went to Harvard intending to major in economics. At Harvard specifically and in society in general, he told me, “we’re expected to think of our future in this rational way: to add up the pros and cons and then make a decision. That leads you down the road of ‘Stick with what you’re good at’”—a road with little risk but little reward.
  • after his introduction to Chinese philosophy during his sophomore year, he realized this wasn’t the only way to think about the future. Instead, he tried courses he was drawn to but wasn’t naturally adroit at because he had learned how much value lies in working hard to become better at what you love. He became more aware of the way he was affected by those around him, and how they were affected by his own actions in turn. Mitchell threw himself into foreign language learning, feels his relationships have deepened, and is today working towards a master’s degree in regional studies.
  • “I can happily say that Professor Puett lived up to his promise, that the course did in fact change my life.”
grayton downing

The Art of Science | The Scientist Magazine® - 0 views

  • According to the exhibition’s organizers, art and science both “involve the pursuit of those moments of discovery when what is perceived suddenly becomes more than the sum of its parts.”
  • the natural beauty of C. elegans suddenly sent a scientist in search of a camera—in this case the camera in her phone
  • “I held it right up to the microscope eyepiece and took a photo,” she says. “A quick Instagram filter later, and I had my image.” After sharing the image with the world, some of Wright’s non-biologist friends, many of whom had never heard of C. elegans, told her they wanted to know more about the model organism. 
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  • “[Science] requires technical skill and it is a process of creating something new where you cannot always predict the outcome.”
  • Many scientists work under the principle that beauty and simplicity often underlie phenomena in nature,” says biophysicist Joshua Shaevitz. His work, “The history of gliding,”
  • is a dazzling array of colorful filaments made by tracking the paths of hundreds of thousands of the social bacterium Myxococcus xanthus. “The process of scientific research often seems dull from the outside, but on the inside there are stunningly beautiful elements to all aspects of nature,” says Shaevitz.
Javier E

The Benefits of 'Binocularity' - NYTimes.com - 0 views

  • Will advances in neuroscience move reasonable people to abandon the idea that criminals deserve to be punished?
  • if the idea of deserving punishment depends upon the idea that criminals freely choose their actions, and if neuroscience reveals that free choice is an illusion, then we can see that the idea of deserving punishment is nonsense
  • “new neuroscience will undermine people’s common sense, libertarian conception of free will and the retributivist thinking that depends on it, both of which have heretofore been shielded by the inaccessibility of sophisticated thinking about the mind and its neural basis.”
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  • when university students learn about “the neural basis of behavior” — quite simply, the brain activity underlying human actions —they become less supportive of the idea that criminals deserve to be punished.
  • To see what is right — and wrong — with the notion that neuroscience will transform our idea of just deserts, and, more generally, our idea of what it means to be human, it can help to step back and consider
  • British philosopher Jonathan Glover. He said that if we want to understand what sorts of beings we are in depth, we need to achieve a sort of intellectual “binocularity.”
  • Glover was saying that, just as we need two eyes that integrate slightly different information about one scene to achieve visual depth perception, being able see ourselves though two fundamentally different lenses, and integrate those two sources of information, can give us a greater depth of understanding of ourselves.
  • Through one lens we see that we are “subjects” (we act) who have minds and can have the experience of making free choices. Through the other we see that we are “objects” or bodies (we are acted upon), and that our experiences or movements are determined by an infinitely long chain of natural and social forces.
  • intellectual binocularity itself is not easy to achieve. While visual binocularity comes naturally, intellectual binocularity requires effort. In fact — and this is one source of the trouble we so often have when we try to talk about the sorts of beings we are — we can’t actually achieve perfect binocular understanding.
  • We can’t actually see ourselves as subjects and as objects at the same time any more than we can see Wittgenstein’s famous duck-rabbit figure as a duck and as a rabbit at once. Rather, we have to accept the necessity of oscillating between the lenses or ways of seeing, fully aware that, not only are we unable to use both at once, but that there is no algorithm for knowing when to use which.
  • When I said in the beginning that there’s something right about the reasoning of those researchers who reject the idea that our choices are “spontaneous” and not determined by prior events, I was referring to their rejection of the idea that our choices are rooted in some God-given, extra-natural, bodyless stuff.
  • My complaint is that they slip from making the reasonable claim that such extra-natural stuff is an illusion to speaking in ways that suggest that free will is an illusion, full stop. To suggest that our experience of choosing is wholly an illusion is as unhelpful as to suggest that, to explain the emergence of that experience, we need to appeal to extra-natural phenomena.
  • Using either lens alone can lead to pernicious mistakes. When we use only the subject lens, we are prone to a sort of inhumanity where we ignore the reality of the natural and social forces that bear down on all of us to make our choices.
  • When we use only the object lens, however, we are prone to a different, but equally noxious sort of inhumanity, where we fail to appreciate the reality of the experience of making choices freely and of knowing that we can deserve punishment — or praise.
Javier E

Psychology Is Not in Crisis - The New York Times - 0 views

  • Suppose you have two well-designed, carefully run studies, A and B, that investigate the same phenomenon. They perform what appear to be identical experiments, and yet they reach opposite conclusions. Study A produces the predicted phenomenon, whereas Study B does not. We have a failure to replicate
  • Does this mean that the phenomenon in question is necessarily illusory? Absolutely not. If the studies were well designed and executed, it is more likely that the phenomenon from Study A is true only under certain conditions. The scientist’s job now is to figure out what those conditions are, in order to form new and better hypotheses to test.
  • Much of science still assumes that phenomena can be explained with universal laws and therefore context should not matter. But this is not how the world works. Even a simple statement like “the sky is blue” is true only at particular times of day, depending on the mix of molecules in the air as they reflect and scatter light, and on the viewer’s experience of color. Continue reading the main story Write A Comment
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  • Science is not a body of facts that emerge, like an orderly string of light bulbs, to illuminate a linear path to universal truth. Rather, science (to paraphrase Henry Gee, an editor at Nature) is a method to quantify doubt about a hypothesis, and to find the contexts in which a phenomenon is likely. Failure to replicate is not a bug; it is a feature. It is what leads us along the path — the wonderfully twisty path — of scientific discovery.
Sophia C

Thomas Kuhn: Revolution Against Scientific Realism* - 1 views

  • as such a complex system that nobody believed that it corresponded to the physical reality of the universe. Although the Ptolemaic system accounted for observations-"saved the appearances"-its epicycles and deferents were never intended be anything more than a mathematical model to use in predicting the position of heavenly bodies. [3]
  • lileo that he was free to continue his work with Copernican theory if he agreed that the theory did not describe physical reality but was merely one of the many potential mathematical models. [10] Galileo continued to work, and while he "formally (23)claimed to prove nothing," [11] he passed his mathematical advances and his observational data to Newton, who would not only invent a new mathematics but would solve the remaining problems posed by Copernicus. [12]
  • Thus without pretending that his method could find the underlying causes of things such as gravity, Newton believed that his method produced theory, based upon empirical evidence, that was a close approximation of physical reality.
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  • Medieval science was guided by "logical consistency."
  • The logical empiricist's conception of scientific progress was thus a continuous one; more comprehensive theory replaced compatible, older theory
  • Hempel also believed that science evolved in a continuous manner. New theory did not contradict past theory: "theory does not simply refute the earlier empirical generalizations in its field; rather, it shows that within a certain limited range defined by qualifying conditions, the generalizations hold true in fairly close approximation." [21]
  • New theory is more comprehensive; the old theory can be derived from the newer one and is one special manifestation" [22] of the more comprehensive new theory.
  • movement combined induction, based on empiricism, and deduction in the form of logic
  • It was the truth, and the prediction and control that came with it, that was the goal of logical-empirical science.
  • Each successive theory's explanation was closer to the truth than the theory before.
  • e notion of scientific realism held by Newton led to the evolutionary view of the progress of science
  • he entities and processes of theory were believed to exist in nature, and science should discover those entities and processes
  • Particularly disturbing discoveries were made in the area of atomic physics. For instance, Heisenberg's indeterminacy (25)principle, according to historian of science Cecil Schneer, yielded the conclusion that "the world of nature is indeterminate.
  • "even the fundamental principle of causality fail[ed] ."
  • was not until the second half of the twentieth century that the preservers of the evolutionary idea of scientific progress, the logical empiricists, were seriously challenged
  • revolutionary model of scientific change and examined the role of the scientific community in preventing and then accepting change. Kuhn's conception of scientific change occurring through revolutions undermined the traditional scientific goal, finding "truth" in nature
  • Textbooks inform scientists-to-be about this common body of knowledge and understanding.
  • for the world is too huge and complex to be explored randomly.
  • a scientist knows what facts are relevant and can build on past research
  • Normal science, as defined by Kuhn, is cumulative. New knowledge fills a gap of ignorance
  • ne standard product of the scientific enterprise is missing. Normal science does not aim at novelties of fact or theory and, when successful, finds none."
  • ntain a mechanism that uncovers anomaly, inconsistencies within the paradigm.
  • eventually, details arise that are inconsistent with the current paradigm
  • hese inconsistencies are eventually resolved or are ignored.
  • y concern a topic of central importance, a crisis occurs and normal science comes to a hal
  • that the scientists re-examine the foundations of their science that they had been taking for granted
  • it resolves the crisis better than the others, it offers promise for future research, and it is more aesthetic than its competitors. The reasons for converting to a new paradigm are never completely rational.
  • Unlike evolutionary science, in which new knowledge fills a gap of ignorance, in Kuhn's model new knowledge replaces incompatible knowledge.
  • Thus science is not a continuous or cumulative endeavor: when a paradigm shift occurs there is a revolution similar to a political revolution, with fundamental and pervasive changes in method and understanding. Each successive vision about the nature of the universe makes the past vision obsolete; predictions, though more precise, remain similar to the predictions of the past paradigm in their general orientation, but the new explanations do not accommodate the old
  • In a sense, we have circled back to the ancient and medieval practice of separating scientific theory from physical reality; both medieval scientists and Kuhn would agree that no theory corresponds to reality and therefore any number of theories might equally well explain a natural phenomenon. [36] Neither twentieth-century atomic theorists nor medieval astronomers are able to claim that their theories accurately describe physical phenomena. The inability to return to scientific realism suggests a tripartite division of the history of science, with a period of scientific realism fitting between two periods in which there is no insistence that theory correspond to reality. Although both scientific realism and the evolutionary idea of scientific progress appeal to common sense, both existed for only a few hundred years.
Javier E

Surveying religious knowledge « The Immanent Frame - 0 views

  • Instead of concluding that Americans lack “religious knowledge” because they don’t know what social scientists think they should, we might want to ask what, if anything, the study reveals about lived religion. If, for example, 45 percent of U.S. Catholics “do not know that their church teaches that the bread and wine used in Communion do not merely symbolize but actually become the body and blood of Christ,” then perhaps it is a mistake simply to identify Catholicism with what Catholic bishops say it is. To conclude that Americans are “uninformed” about “their own traditions” betrays a subtle bias in favor of elites and begs the question of what constitutes one’s “own” religion: are we “illiterate,” or do we simply disagree about what belongs in the “canon”?
  • Is ‘having correct beliefs’ the main point of religion? There may be socially useful reasons to play that down in favor of encouraging shared values: compassion, service, and social justice.
  • People do not know who Maimonides was, I think, for the same reason they do not know the origin of “devil’s advocate.” Our culture has become more pluralistic, and people draw upon its elements in the way of the bricoleur to construct a web of meanings that is flexible, contextually activated, and what we would call “post-modern”
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  • Perhaps more fundamental, the rules that shape how the bricoleur selects the various elements have also changed. Religion is far less formative of our public discourse and culture in the deep, constitutive way that it was even as recently as the postwar period, due in large part to the rise of neo-liberalism.
  • if we ask Americans a range of questions about matters that extend beyond their immediate horizons, we would be somewhat amazed by the blind spots in our thinking. Ignorance about religion might very well extend to ignorance about geopolitical concerns or about other cultures generally. What is striking, and simultaneously disturbing, is the degree to which our comfort and certainty about ourselves as Americans and about the world we inhabit enable us to settle into a kind of willful ignorance. So I am not inclined to single out religion in this regard; something more fundamental has been revealed
  • To take seriously the results of the Pew quiz leads us to question the substance of our national commitment to religious tolerance and pluralism. If our knowledge of other religions (even our own) is shoddy, then what constitutes the substance of our toleration of others? Is it simply a procedural concern? And, more importantly, if we fail to know basic facts about others, do we make it easier to retreat into the comfort of insular spaces, deaf to the claims of others? Do we expect, at the end of the day, no matter our public announcements to the contrary, that all others should sound and believe as the majority of Americans do?
  • The Pew Forum’s Religious Knowledge Survey examines one type of religious knowledge: knowledge-that. Respondents were asked whether certain propositions about world religions were true. But it is an open question whether this really is the sort of knowledge that we have in mind when we are talking about religious knowledge. At least sometimes, it seems like we mean knowledge-how.
  • The unwritten premise of the survey is that belief ought to be individual, considered, and fully-informed. But that premise fits neither religious experience nor human subjectivity over the long term. Thus to ask these questions in this way is to presume a particular kind of religious subject that is largely nonexistent, then to take pleasure in clucking over its nonexistence.
  • what if religion is not primarily about knowledge? What if the defining core of religion is more like a way of life, a nexus of action? What if, as per Charles Taylor, a religious orientation is more akin to a “social imaginary,” which functions as an “understanding” on a register that is somewhat inarticulable? Indeed, I think Taylor’s corpus offers multiple resources for criticizing what he would describe as the “intellectualism” of such approaches to religion—methodologies that treat human persons as “thinking things,” and thus reduce religious phenomena to a set of ideas, beliefs, and propositions. Taylor’s account of social imaginaries reminds us of a kind of understanding that is “carried” in practices, implicit in rituals and routines, and can never be adequately articulated or made explicit. If we begin to think about religion more like a social imaginary than a set of propositions and beliefs, then the methodologies of surveys of religious “knowledge” are going to look problematic.
  • I’m reminded of an observation Wittgenstein makes in the Philosophical Investigations: One could be a master of a game without being able to articulate the rules.
  • belief, faith and knowledge, Pew Forum on Religion and Public Life, religion and science, religion in the U.S., religious literacy, surveys, U.S. Religious Knowledge Survey
Javier E

Rationally Speaking: Razoring Ockham's razor - 0 views

  • Philosophers often refer to this as the principle of economy, while scientists tend to call it parsimony. Skeptics invoke it every time they wish to dismiss out of hand claims of unusual phenomena
  • The obvious question to ask about Ockham’s razor is: why? On what basis are we justified to think that, as a matter of general practice, the simplest hypothesis is the most likely one to be true? Setting aside the surprisingly difficult task of operationally defining “simpler” in the context of scientific hypotheses (it can be done, but only in certain domains, and it ain’t straightforward), there doesn’t seem to be any particular logical or metaphysical reason to believe that the universe is a simple as it could be.
  • Pierre Duhem suggested in 1908 that, as Sober puts it: “it is wrong to think that hypothesis H makes predictions about observation O; it is the conjunction of H&A [where A is a set of auxiliary hypotheses] that issues in testable consequences.”
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  • The history of science is replete with examples of simpler (“more elegant,” if you are aesthetically inclined) hypotheses that had to yield to more clumsy and complicated ones.
  • This is both why there is no such thing as a “crucial” experiment in science (you always need to repeat them under a variety of conditions), and why naive Popperian falsificationism is wrong (you can never falsify a hypothesis directly, only the H&A complex can be falsified).
  • The Duhem thesis explains why Sober is right, I think, in maintaining that the razor works (when it does) given certain background assumptions that are bound to be discipline- and problem-specific.
  • So, Ockham’s razor is a sharp but not universal tool, and needs to be wielded with the proper care due to the specific circumstances.
  • There is no shortcut for a serious investigation of the world, including the spelling out of our auxiliary, and often unexplored, hypotheses and assumptions.
Javier E

Why Disruptors Are Always White Guys -- NYMag - 0 views

  • There are three pernicious and interrelated phenomena at work here. First, founders are disproportionately white dudes. Second, white dudes are disproportionately encouraged to become founders. Third, white dudes are disproportionately recognized as founders.
  • Ultimately, this phenomenon can lead to the erasure of women and minorities in leadership roles from the picture
  • The research is broad and deep on the “glass walls” that keep women from becoming entrepreneurs, or the profound discrimination that many people of color face when starting their own businesses. Investors like a pitch coming from a man better than coming from a woman — even when the pitch is the same. Minority-owned firms get rejected for loans at twice the rate of white-owned firms, and often pay higher interest rates when they get them, too. 
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  • There’s a single discriminatory phenomenon underpinning all three of these issues, sometimes called “think manager, think male.”
  • . “Probably the single most important hurdle for women in management in all industrialized countries is the persistent stereotype that associates management with being male,” one study reads
  • Other studies find distinctly similar stereotypes related to people of color and leadership.
  • In today’s media economy, we’re facing the “think entrepreneur, think white dude” problem.
  • it need not be so. As a very preliminary step, if publications insisted on putting women and minorities on their stupid, arbitrary lists, it would elevate those entrepreneurs and founders. It might help break down the deep stereotypes that help to discourage women and minorities from becoming entrepreneurs in the first place.
Javier E

On Pi Day, Celebrate Math's Enigmas - NYTimes.com - 0 views

  • a better way to commemorate the day is by trying to grasp what pi truly is, and why it remains so significant.
  • Pi is irrational, meaning it cannot be expressed as the ratio of two whole numbers. There is no way to write it down exactly: Its decimals continue endlessly without ever settling into a repeating pattern
  • pi, being the ratio of a circle’s circumference to its diameter, is manifested all around us. For instance, the meandering length of a gently sloping river between source and mouth approaches, on average, pi times its straight-line distance. Pi reminds us that the universe is what it is, that it doesn’t subscribe to our ideas of mathematical convenience.
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  • pi’s infinite randomness can also be seen more as richness. What amazes, then, is the possibility that such profusion can come from a rule so simple: circumference divided by diameter. This is characteristic of mathematics, whereby elementary formulas can give rise to surprisingly varied phenomena. For instance, the humble quadratic can be used to model everything from the growth of bacterial populations to the manifestation of chaos. Pi makes us wonder if our universe’s complexity emerges from similarly simple mathematical building blocks.
  • Pi also opens a window into a more uncharted universe, the one consisting of transcendental numbers, which exclude such common irrationals as square and cube roots. Pi is one of the few transcendentals we ever encounter. One may suspect that such numbers would be quite rare, but actually, the opposite is true. Out of the totality of numbers, almost all are transcendental. Pi reveals how limited human knowledge is, how there exist teeming realms we might never explore.
  • But pi, on cue, reminds us that it is an abstraction, like all else in mathematics. The perfect flat circle is impossible to realize in practice. An area calculated using pi will never exactly match the same area measured physically. This is to be expected whenever we approximate reality using the idealizations of math.
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