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huffem4

Academics Are Really Worried About Cancel Culture - The Atlantic - 1 views

  • Our national reckoning on race has brought to the fore a loose but committed assemblage of people given to the idea that social justice must be pursued via attempts to banish from the public sphere, as much as possible, all opinions that they interpret as insufficiently opposed to power differentials.
  • Valid intellectual and artistic endeavor must hold the battle against white supremacy front and center, white people are to identify and expunge their complicity in this white supremacy with the assumption that this task can never be completed, and statements questioning this program constitute a form of “violence” that merits shaming and expulsion.
  • Another defense of sorts has been to claim that even this cancel-culture lite is not dangerous, because it has no real effect. When, for instance, 153 intellectuals signed an open letter in Harper’s arguing for the value of free speech (I was one of them), we were told that we were comfortable bigwigs chafing at mere criticism, as if all that has been happening is certain people being taken to task, as opposed to being shamed and stripped of honors.
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  • more than half the respondents consider expressing views beyond a certain consensus in an academic setting quite dangerous to their career trajectory.
  • various people insisted that I was, essentially, lying; they simply do not believe that anyone remotely reasonable has anything to worry about.
  • in July I tweeted that I (as well as my Bloggingheads sparring partner Glenn Loury) have been receiving missives since May almost daily from professors living in constant fear for their career because their opinions are incompatible with the current woke playbook.
  • This episode represents a pattern in the letters, wherein it is white students who are “woker” than their Black classmates, neatly demonstrating the degree to which this new religion is more about virtue signaling than social justice
  • A statistics professor says: I routinely discuss the fallacy of assuming that disparity implies discrimination, which is just a specific way of confusing correlation for causality. Frankly, I'm now somewhat afraid to broach these topics … since according to the new faith, disparity actually is conclusive evidence of discrimination.
  • The new mood has even reached medieval studies; an assistant professor reports having recently just survived an attack by a cadre of scholars who are “unspeakably mean and disingenuous once they have you in their sights,” regularly “mounting PR campaigns to get academics and grad students fired, removed from programs, expelled from scholarly groups, or simply to cease speaking.”
  • Being nonwhite leaves one protected in this environment only to the extent that one toes the ideological line. An assistant professor of color who cannot quite get with the program writes, “At the moment, I’m more anxious about this problem than anything else in my career,” noting that “the truth is that over the last few years, this new norm of intolerance and cult of social justice has marginalized me more than all racism I have ever faced in my life.”
  • The charges levied against many of these professors are rooted in a fanatical worldview, one devoted to spraying for any utterances possibly interpretable as “supremacist,” although the accusers sincerely think they have access to higher wisdom. A white professor read a passage from an interview with a well-known Black public intellectual who mentions the rap group NWA, and because few of the students knew of the group’s work at this late date, the professor parenthetically noted what the initials stand for. None of the Black students batted an eye, according to my correspondent, but a few white students demanded a humiliating public apology.
  • Overall I found it alarming how many of the letters sound as if they were written from Stalinist Russia or Maoist China.
  • let’s face it: Half a dozen reports of teachers grading Black students more harshly than white students would be accepted by many as demonstrating a stain on our entire national fabric. These 150 missives stand as an articulate demonstration of something general—and deeply disturbing—as well.
  • A history professor reports that at his school, the administration is seriously considering setting up an anonymous reporting system for students and professors to report “bias” that they have perceived.
  • One professor committed the sin of “privileging the white male perspective” in giving a lecture on the philosophy of one of the Founding Fathers, even though Frederick Douglass sang that Founder’s praises. The administration tried to make him sit in a “listening circle,” in which his job was to stay silent while students explained how he had hurt them—in other words, a 21st-century-American version of a struggle session straight out of the Cultural Revolution.
  • The result is academics living out loud only in whispers
  • A creative-writing instructor:
  • The majority of my fellow instructors and staff constantly self-censor themselves in fear of being fired for expressing the “wrong opinions.” It’s gotten to the point where many are too terrified to even like or retweet a tweet, lest it lead to some kind of disciplinary measure … They are supporters of free speech, scientific data, and healthy debate, but they are too fearful today to publicly declare such support. However, they’ll tell it to a sympathetic ear in the back corner booth of a quiet bar after two or three pints. These ideas have been reduced to lurking in the shadows now.
  • Some will process this as a kind of whining, supposing that all we should really be concerned about is whether people are outright dismissed. However, elsewhere a hostile work environment is considered a breach of civil rights, and as one correspondent wrote
  • “It isn’t just fear of firing that motivates professors and grad students to be quiet. It is a desire to have friends, to be part of a community. This is a fundamental part of human psychology. Indeed, experiments examining the effects of ostracism highlight what a powerful existential threat it is to be ignored, excluded, or rejected. This has been documented at the neurological level. Ostracism is a form of social death. It is a very potent threat.”
  • Especially sad is the extent to which this new Maoism can dilute the richness of a curriculum and discourage people from becoming professors at all
  • Very few of the people who wrote to me are of conservative political orientation. Rather, a main thread in the missives is people left-of-center wondering why, suddenly, to be anything but radical is to be treated as a retrograde heretic
  • It is now no longer “Why aren’t you on the left?” but “How dare you not be as left as we are.”
  • So no one should feign surprise or disbelief that academics write to me with great frequency to share their anxieties. In a three-week period early this summer, I counted some 150 of these messages. And what they reveal is a very rational culture of fear among those who dissent, even slightly, with the tenets of the woke left.
  • The goal, they suggest, is less to eliminate all signs of a person’s existence—which tends to be impractical anyway— than to supplement critique with punishment of some kind.
  • One professor notes, “Even with tenure and authority, I worry that students could file spurious Title IX complaints … or that students could boycott me or remove me as Chair.”
  • From the same well is this same professor finding that the gay men in his class had no problem with his assigning a book with a gay slur in its title, a layered, ironic title for a book taking issue with traditional concepts of masculinity—but that a group of straight white women did, and reported him to his superiors.
  • degree of sheer worry among the people
    • huffem4
       
      everyone has to watch what you say in fear of being "cancelled." Instead of teaching or helping the person to learn from their mistakes, their careers and futures are ruined.
pier-paolo

The Importance of Intuition, Time-And Speaking Last - The New York Times - 0 views

  • What makes the difference between a good and a great leader? A. Time. I do believe there are people in the world that have a natural ability at leadership, but I also believe you can teach, coach and build great leaders,
  • you need to get things finished and done, follow through on your commitments to your employees, leaders, consumers. Clarity and consistency of communication are also important. I often think that although great leaders can overcommunicate they keep it simple
  • I think it’s much more useful to me and to the team if I speak last. So I work very hard to create an environment to encourage everybody else to speak up before I weigh in.
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  • It’s a long list. For me, if you’re not making mistakes, you’re not growing. It’s O.K. to try and not achieve, it’s not O.K. not to try
  • As your company has grown through acquisitions, you’ve had to integrate a lot of different teams. How do you tackle this integration of different cultures? A. Time. You can fundamentally approach acquisitions two ways. The company that acquires says, “This is the way we do it around here, so you will change and adopt our processes. Bang!”
ilanaprincilus06

How Elastic Is Your Brain? - The New York Times - 0 views

  • you are not merely your brain — your body and the broader circumstances of your life also make you who you are.
  • you are not merely your brain — your body and the broader circumstances of your life also make you who you are.
    • ilanaprincilus06
       
      The brain carries all of the information that determines who we are and also makes the decisions that determine who we are. Despite this, there are so many other organs, etc that make us our unique selves.
  • we mythologize brains, creating false boundaries that divorce them from bodies and the outside world, blinding us to the biological nature of the mind.
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  • These divisions, Jasanoff contends, are why neuroscience has failed to make a real difference in anyone’s life.
    • ilanaprincilus06
       
      We believe that our brain doesn't have many limitations, so we indulge in the false truth that we can do anything as a result.
  • our bodies and the world around us affect our thoughts, feelings and actions, but not how body and world become biologically embedded to constitute a mind.
  • a discussion of how the workings of your body necessarily and irrevocably shape your brain’s structure and function, and vice versa.
  • the experiences we have from infancy onward impact the brain’s wiring. For example, childhood poverty and adversity fundamentally alter brain development, leaving an indelible mark that increases people’s risk of illness in adulthood.
  • she tries to reduce her anxiety, expand her creativity, improve her math ability, calibrate her inner GPS and take control over her perception of the passing of time, using various brain-hacking techniques. Each chapter is a mini-redemption story, with Williams starting out skeptical and ending victorious.
  • treat their discomfort not as a damper but as a signal to press on. This is what Mlodinow calls “elastic thinking”
ilanaprincilus06

Bringing genetics into trans identity is a terrifying path | Fury | Opinion | The Guardian - 0 views

  • This study was looking at the relationship between these genes and the possibility that they are a factor in what causes gender dysphoria.
  • By examining a link between genetics and gender dysphoria, this study is investigating a potential biological cause for the existence of transgender people.
  • “This is nothing new. These arguments have happened before with research into the ‘gay gene’ in the late 1980s and early 90s.”
    • ilanaprincilus06
       
      Have we found evidence of a "straight gene"? It is sad that the presumed assumption of everyone being born straight is still an ongoing argument.
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  • “In their study, they found that some of these gene variants were significantly more associated with being trans women, and not just being male. That doesn’t establish causality, and it is just an association. And in fact, its a weak association,”
  • genetic markers are not assumed to be the only factor in what shapes something like gender.
  • When publishing material that supports the idea that there is a biological element to gender identity, scientists, policy makers and the general public are less inclined to listen to trans activists.
  • Trans activists seek to educate people on their fundamental human right to experiment with dress, movement, identity and presentation.
  • “The way that science, technology and science is progressing can be incredibly dangerous in regards to things like eugenics.”
  • Until 2013, trans people in Sweden were required to undergo sterilization before they could access gender-affirming treatment.
  • Given the rising accessibility of gene testing, this sort of research can easily be weaponised as justification for sterilisation, persecution or the abortion of fetuses with these genes.
  • It also further troubles the tenuous relationship that the scientific and medical community have with the trans community.
  • Fostering the notion of a genetic factor to gender dysphoria threatens to further complicate trans people’s access to appropriate care.
  • it takes away their right to self determination and the right to bodily autonomy in regards to gender expression and creativity.”
  • raises questions about the repeated and unchecked power discrepancies between science, medicine and the trans and gender diverse community.
pier-paolo

Paradoxical Truth - The New York Times - 0 views

  • Paradoxes are apparently good arguments that lead to conclusions that are beyond belief (Greek: “para” = beyond, “doxa” = belief)
  • One is to accept that the conclusion, implausible as it may seem, is actually true; the other is to reject the conclusion, and explain what has gone wrong in the argument.
  • Fundamental to it was accepting that there are indeed exactly as many even numbers as whole numbers. It is the very nature of infinite totalities that you can throw away some of their members, and have as many as you started with.
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  • Dichotomy. Suppose a car is moving from to A to B . Let’s measure the distance between A and B by a scale according to which A is at point 0 and B is at point 1. Then before the car gets to point 1, it has to get half way there, point 1/2; and once it has got there, it has to get to a point half way between 1/2 and 1, 3/4; and so on… In other words, it has to get to every one of the infinite number of points 1/2, 3/4, 7/8
  • But you can’t do an infinite number of things in a finite time. So the car never get to point B.
  • At any rate, even after two and a half thousand years of trying to come up with an explanation of what is wrong with the argument in the Liar Paradox, there is still no consensus on the matter.
  • Interestingly, virtually everything else that Aristotle ever defended has been overthrown — or at least seriously challenged. The principle of noncontradiction is, it would seem, the last bastion!
  • A common suggestion of what it is for B to follow logically from A is that you can’t have A without having B. Given the principle of noncontradiction, if A is a contradiction, you can’t have it. And if you can’t have A, you certainly can’t have A and B. That is, everything follows from a contradiction.
anonymous

Why Childhood Memories Disappear - The Atlantic - 0 views

  • Most adults can’t remember much of what happened to them before age 3 or so. What happens to the memories formed in those earliest years?
  • When I talk about my first memory, what I really mean is my first retained memory. Carole Peterson, a professor of psychology at Memorial University Newfoundland, studies children’s memories. Her research has found that small children can recall events from when they were as young as 20 months old, but these memories typically fade by the time they’re between 4 and 7 years old.
  • “People used to think that the reason that we didn’t have early memories was because children didn’t have a memory system or they were unable to remember things, but it turns out that’s not the case,” Peterson said. “Children have a very good memory system. But whether or not something hangs around long-term depends on on several other factors.”
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  • Two of the most important factors, Peterson explained, are whether the memory “has emotion infused in it,” and whether the memory is coherent: Does the story our memory tells us actually hang together and make sense when we recall it later?
  • A professor at the University of North Carolina-Chapel Hill, Reznick explained that shortly after birth, infants can start forming impressions of faces and react when they see those faces again; this is recognition memory. The ability to understand words and learn language relies on working memory, which kicks in at around six months old. More sophisticated forms of memory develop in the child’s second year, as semantic memory allows children to retain understanding of concepts and general knowledge about the world.
  • I formed earlier memories using more rudimentary, pre-verbal means, and that made those memories unreachable as the acquisition of language reshaped how my mind works, as it does for everyone.
  • False memories do exist, but their construction appears to begin much later in life
  • A study by Peterson presented young children with fictitious events to see if they could be misled into remembering these non-existent events, yet the children almost universally avoided the bait. As for why older children and adults begin to fill in gaps in their memories with invented details, she pointed out that memory is a fundamentally constructive activity: We use it to build understanding of the world, and that sometimes requires more complete narratives than our memories can recall by themselves.
  • as people get older, it becomes easier to conflate actual memories with other stimuli.
  • He explained that recognition memory is our most pervasive system, and that associations with my hometown I formed as an infant could well have endured more than 20 years later, however vaguely.
  • give me enough time, and I’m sure that detail will be added to my memory. It’s just too perfect a story.
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    Alasdair Wilkins talks about her childhood memories, false memory and how children remember moments of their early years.
kaylynfreeman

Why Lack of Human Touch Can Be Difficult Amid Coronavirus | Time - 1 views

  • With people around the world practicing social distancing and self-isolation to curb the further spread of coronavirus, some are starting to feel the effects of a lack of human touch.
  • “Touch is the fundamental language of connection,” says Keltner. “When you think about a parent-child bond or two friends or romantic partners, a lot of the ways in which we connect and trust and collaborate are founded in touch.”
  • It’s not just about how we feel emotionally. Keltner adds that “touch deprivation” can impact people on a psychological and even physical level
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  • “Big parts of our brains are devoted to making sense of touch and our skin has billions of cells that process information about it,”
  • “The right type of friendly touch—like hugging your partner or linking arms with a dear friend—calms your stress response down. [Positive] touch activates a big bundle of nerves in your body that improves your immune system, regulates digestion and helps you sleep well. It also activates parts of your brain that help you empathize.”
  • Psychologist Sheldon Cohen and other researchers at Carnegie Mellon University cited hugging specifically as a form of touch that can strengthen the immune system in a 2014 study investigating whether receiving hugs—and more broadly, social support that gives the perception that one is cared for—could make people less susceptible to one of the viruses that causes the common cold.
  • Broadly speaking, the participants who had reported having more social support were less likely to get sick—and those who got more hugs were far more likely to report feeling socially supported.
  • Everybody should be open to people being a little more socially distant and not touching as much. Some of it will return and some of it won’t.”
  • Although there’s no exact substitute for human touch, if you’re struggling with this aspect of self-isolating in particular, there are a few alternatives that can offer similar health benefits for people who are social distancing
  • “In-person interactions have a big effect on the brain releasing oxytocin, but interacting via video is actually not that [different],” he explains. “It’s maybe 80% as effective. Video conferencing is a great way to see and be seen.”
  • Keltner adds that dancing, singing or doing yoga with others via an online platform can also be highly effective substitutes for physical contact
  • “Not only would it be good to prevent coronavirus disease; it probably would decrease instances of influenza dramatically in this country,”
  • Zak says U.S. customs like shaking hands and hugging may be changed forever and suggests that non-tactile greetings like a nod, bow or wave may come to replace them. However, he says it will still be important to find ways to reintroduce the humanity of positive touch into in-person interactions without putting anyone’s physical or mental health in jeopardy.
  • “When we’re touched [in a positive way], a cascade of events happens in the brain and one of the important ones is the release of a neurochemical called oxytocin,”
  • But for those who are quarantining alone or with people with whom they don’t have physical contact, loneliness and social isolation are growing health concerns.
  • this process reduces stress and improves immunity. “That’s super valuable in a time of pandemic.”
  • If you’re using a video chat service for work or school, Zak recommends that you take five minutes at the beginning of the call to focus on interpersonal connection.
  • to illustrate how dance parties like Daybreaker can be beneficial for people’s physical and mental health. “When you create a dance experience driven by music, community and participation, that’s how you’re able to release all four happy brain chemicals,” Agrawal says.
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    Touch has a great impact on our brains and our reactions amid coronavirus separation. There are a few substitutes for human touch, like yoga and facetime, that we can all try.
huffem4

How to Use Critical Thinking to Separate Fact From Fiction Online | by Simon Spichak | ... - 2 views

  • Critical thinking helps us frame everyday problems, teaches us to ask the correct questions, and points us towards intelligent solutions.
  • Critical thinking is a continuing practice that involves an open mind and methods for synthesizing and evaluating the quality of knowledge and evidence, as well as an understanding of human errors.
  • Step 1. What We Believe Depends on How We Feel
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  • One of the first things I ask myself when I read a headline or find a claim about a product is if the phrase is emotionally neutral. Some headlines generate outrage or fear, indicating that there is a clear bias. When we read something that exploits are emotions, we must be careful.
  • misinformation tends to play on our emotions a lot better than factual reporting or news.
  • When I’m trying to figure out whether a claim is factual, there are a few questions I always ask myself.Does the headline, article, or information evoke fear, anger, or other strong negative emotions?Where did you hear about the information? Does it cite any direct evidence?What is the expert consensus on this information?
  • Step 2. Evidence Synthesis and EvaluationSometimes I’m still feeling uncertain if there’s any truth to a claim. Even after taking into account the emotions it evokes, I need to find the evidence of a claim and evaluate its quality
  • Often, the information that I want to check is either political or scientific. There are different questions I ask myself, depending on the nature of these claims.
  • Political claims
  • Looking at multiple different outlets, each with its own unique biases, helps us get a picture of the issue.
  • I use multiple websites specializing in fact-checking. They provide primary sources of evidence for different types of claims. Here is a list of websites where I do my fact-checking:
  • SnopesPolitifactFactCheckMedia Bias/Fact Check (a bias assessor for fact-checking websites)Simply type in some keywords from the claim to find out if it’s verified with primary sources, misleading, false, or unproven.
  • Science claims
  • Often we tout science as the process by which we uncover absolute truths about the universe. Once many scientists agree on something, it gets disseminated in the news. Confusion arises once this science changes or evolves, as is what happened throughout the coronavirus pandemic. In addition to fear and misinformation, we have to address a fundamental misunderstanding of the way science works when practicing critical thinking.
  • It is confusing to hear about certain drugs found to cure the coronavirus one moment, followed by many other scientists and researchers saying that they don’t. How do we collect and assess these scientific claims when there are discrepancies?
  • A big part of these scientific findings is difficult to access for the public
  • Sometimes the distinction between scientific coverage and scientific articles isn’t clear. When this difference is clear, we might still find findings in different academic journals that disagree with each other. Sometimes, research that isn’t peer-reviewed receives plenty of coverage in the media
  • Correlation and causation: Sometimes a claim might present two factors that appear correlated. Consider recent misinformation about 5G Towers and the spread of coronavirus. While there might appear to be associations, it doesn’t necessarily mean that there is a causative relationship
  • When you’re still unsure, follow the consensus of the experts within the field. Scientists pointed out flaws within this pre-print article leading to its retraction. The pre-print was removed from the server because it did not hold up to proper scientific standards or scrutiny.
  • The next examples I want to bring up refer to retracted articles from peer-reviewed journals. Since science is a self-correcting process, rather than a decree of absolutes, mistakes and fraud are corrected.
  • Briefly, I will show you exactly how to tell if the resource you are reading is an actual, peer-reviewed scientific article.
  • How does science go from experiments to the news?
  • researchers outline exactly how they conducted their experiments so other researchers can replicate them, build upon them, or provide quality assurance for them. This scientific report does not go straight to the nearest science journalist. Websites and news outlets like Scientific American or The Atlantic do not publish scientific articles.
  • Here is a quick checklist that will help you figure out if you’re viewing a scientific paper.
  • Once it’s written up, researchers send this manuscript to a journal. Other experts in the field then provide comments, feedback, and critiques. These peer reviewers ask researchers for clarification or even more experiments to strengthen their results. Peer review often takes months or sometimes years.
  • Some peer-reviewed scientific journals are Science and Nature; other scientific articles are searchable through the PubMed database. If you’re curious about a topic, search for scientific papers.
  • Peer-review is crucial! If you’re assessing the quality of evidence for claims, peer-reviewed research is a strong indicator
  • Finally, there are platforms for scientists to review research even after publication in a peer-reviewed journal. Although most scientists conduct experiments and interpret their data objectively, they may still make errors. Many scientists use Twitter and PubPeer to perform a post-publication review
  • Step 3. Are You Practicing Objectivity?
  • To finish off, I want to discuss common cognitive errors that we tend to make. Finally, there are some framing questions to ask at the end of our research to help us with assessing any information that we find.
  • Dunning-Kruger effect: Why do we rely on experts? In 1999, David Dunning and Justin Kruger published “Unskilled and unaware of it: how difficulties in recognizing one’s own incompetence lead to inflated self-assessments.” They found that the less a person understands about a topic, the more confident of their abilities or knowledge they will be
  • How does this relate to critical thinking? If you’re reading a claim sourced or written by somebody who lacks expertise in a field, they are underestimating its complexity. Whenever possible, look for an authoritative source when synthesizing and evaluating evidence for a claim.
  • Survivorship bias: Ever heard someone argue that we don’t need vaccines or seatbelts? After all, they grew up without either of them and are still alive and healthy!These arguments are appealing at first, but they don’t account for any cases of failures. They are attributing a misplaced sense of optimism and safety by ignoring the deaths that occurred resultant from a lack of vaccinations and seatbelts
  • To practice critical thinking with these kinds of claims, we must ask the following questions:Does this claim emerge from a peer-reviewed scientific article? Has this paper been retracted?Does this article appear in a reputable journal?What is the expert consensus on this article?
  • Now with all the evidence we’ve gathered, we ask ourselves some final questions. There are plenty more questions you will come up with yourself, case-by-case.Who is making the original claim?Who supports these claims? What are their qualifications?What is the evidence used for these claims?Where is this evidence published?How was the evidence gathered?Why is it important?
  • “even if some data is supporting a claim, does it make sense?” Some claims are deceptively true but fall apart when accounting for this bias.
knudsenlu

Mishearings - The New York Times - 1 views

  • Lack of clear enunciation, unusual accents or poor electronic transmission can all serve to mislead one’s own perceptions. Most mishearings substitute one real word for another, however absurd or out of context, but sometimes the brain comes up with a neologism.
  • If a mishearing seems plausible, one may not think that one has misheard; it is only if the mishearing is sufficiently implausible, or entirely out of context, that one thinks, “This can’t be right,” and (perhaps with some embarrassment) asks the speaker to repeat himself, as I often do, or even to spell out the misheard words or phrases.
  • While mishearings may seem to be of little special interest, they can cast an unexpected light on the nature of perception — the perception of speech, in particular. What is extraordinary, first, is that they present themselves as clearly articulated words or phrases, not as jumbles of sound. One mishears rather than just fails to hear.
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  • Mishearings are not hallucinations, but like hallucinations they utilize the usual pathways of perception and pose as reality — it does not occur to one to question them. But since all of our perceptions must be constructed by the brain, from often meager and ambiguous sensory data, the possibility of error or deception is always present.
  • Was Freud entirely wrong then about slips and mishearings? Of course not. He advanced fundamental considerations about wishes, fears, motives and conflicts not present in consciousness, or thrust out of consciousness, which could color slips of the tongue, mishearings or misreadings. But he was, perhaps, too insistent that misperceptions are wholly a result of unconscious motivation
knudsenlu

String Theory: The Best Explanation for Everything in the Universe - The Atlantic - 0 views

  • Somehow, space-time curvature emerges as the collective effect of quantized units of gravitational energy—particles known as gravitons. But naïve attempts to calculate how gravitons interact result in nonsensical infinities, indicating the need for a deeper understanding of gravity.
  • String theory (or, more technically, M-theory) is often described as the leading candidate for the theory of everything in our universe. But there’s no empirical evidence for it, or for any alternative ideas about how gravity might unify with the rest of the fundamental forces. Why, then, is string/M-theory given the edge over the others?
  • For such imaginary worlds, physicists can describe processes at all energies, including, in principle, black-hole formation and evaporation. The 16,000 papers that have cited Maldacena’s over the past 20 years mostly aim at carrying out these calculations in order to gain a better understanding of AdS/CFT and quantum gravity.
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  • his basic sequence of events has led most experts to consider M-theory the leading TOE candidate, even as its exact definition in a universe like ours remains unknown.
  • ) One philosopher has even argued that string theory’s status as the only known consistent theory counts as evidence that the theory is correct.
knudsenlu

Will the Quantum Nature of Gravity Finally Be Measured? - The Atlantic - 0 views

  • In 1935, when both quantum mechanics and Albert Einstein’s general theory of relativity were young, a little-known Soviet physicist named Matvei Bronstein, just 28 himself, made the first detailed study of the problem of reconciling the two in a quantum theory of gravity. This “possible theory of the world as a whole,” as Bronstein called it, would supplant Einstein’s classical description of gravity, which casts it as curves in the space-time continuum, and rewrite it in the same quantum language as the rest of physics.
  • His words were prophetic. Eighty-three years later, physicists are still trying to understand how space-time curvature emerges on macroscopic scales from a more fundamental, presumably quantum picture of gravity; it’s arguably the deepest question in physics.
  • The search for the full theory of quantum gravity has been stymied by the fact that gravity’s quantum properties never seem to manifest in actual experience. Physicists never get to see how Einstein’s description of the smooth space-time continuum, or Bronstein’s quantum approximation of it when it’s weakly curved, goes wrong.
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  • Not only that, but the universe appears to be governed by a kind of cosmic censorship: Regions of extreme gravity—where space-time curves so sharply that Einstein’s equations malfunction and the true, quantum nature of gravity and space-time must be revealed—always hide behind the horizons of black holes.
  • Dyson, who helped develop quantum electrodynamics (the theory of interactions between matter and light) and is professor emeritus at the Institute for Advanced Study in Princeton, New Jersey, where he overlapped with Einstein, disagrees with the argument that quantum gravity is needed to describe the unreachable interiors of black holes. And he wonders whether detecting the hypothetical graviton might be impossible, even in principle. In that case, he argues, quantum gravity is metaphysical, rather than physics.
  • The ability to detect the “grin” of quantum gravity would seem to refute Dyson’s argument. It would also kill the gravitational decoherence theory, by showing that gravity and space-time do maintain quantum superpositions.
  • If gravity is a quantum interaction, then the answer is: It depends. Each component of the blue diamond’s superposition will experience a stronger or weaker gravitational attraction to the red diamond, depending on whether the latter is in the branch of its superposition that’s closer or farther away. And the gravity felt by each component of the red diamond’s superposition similarly depends on where the blue diamond is.
johnsonel7

In traditional language, there is no word for disability | Damian Griffis for Indigenou... - 0 views

  • At FPDN we say we are the thought leaders on inclusion. We know this because in traditional language there was and is no word for disability. This is a wonderful thing in our communities – we have always been “come as you are”
  • This is compelling evidence that shows we have always known that disability is part of the human experience. However, we are continuing to butt up against a system that requires people with disability to accept labels that we say are fundamentally about deficit.
johnsonel7

The Next Climate Battleground: Your Child's Science Classroom - 0 views

  • Florida Citizens’ Alliance, a conservative, 20,000-member organization based in Naples that spearheaded a successful grassroots effort last year to pass the nation’s first state bill allowing residents to demand a public hearing on local school textbooks. With its passage, parents of students — as well as anyone living in a given district — can challenge the books a school is using to teach their community’s children. It was a seemingly parochial piece of civic legislation, but it was one with potentially great implications for science education in the United States.
  • Prominent on the group’s expanded menu of concerns was climate change, and humanity’s presumed role in driving it. The Alliance’s members began line-reading school textbooks for violations of their beliefs, creating carefully detailed reports on how many times, and in what context, elementary and high school students were learning about rising seas, or melting ice in Antarctica.
  • Vernon said, echoing a prevailing concern among members of the Alliance and likeminded conservatives everywhere: the unchecked power and control over social institutions by perceived liberal elites. “We’re really concerned,” he added, “that our kids are not being educated, [but] simply indoctrinated in the philosophy of the academic aristocracy.”
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  • one that has conservative groups wrestling for control over how climate science will be taught to American students. The science classroom, after all, remains the dominant venue in which those students first encounter the topic, and it greatly informs how students eventually square-up to the veracity of climate change — either as something they believe to be happening and worth responding to politically, or as a phenomenon of nature, underserving of public funds and political action.
  • The outcome matters: Whoever wins over the minds of this upcoming cohort of American voters will, to a large extent, shape the nation’s policies on climate change for decades to come.
  • “Teachers are facing pressure to not only eliminate or de-emphasize climate change science, but also to introduce non-scientific ideas in science classrooms,” the statement said.
  • For advocates of inserting climate change skepticism into the classroom, the notion of “teaching both sides of the debate” is a familiar refrain, and it’s one used to mask the more fundamental motive: Fostering doubt in students that the scientific community conclusively agrees climate change is occurring.
  • For those science teachers who remain in the classroom, a comprehensive understanding of climate science itself is not a given. One recent report found that less than half of K-12 science teachers received formal climate science training during their own college education — a comprehension void that helps explain why political ideology has been shown to be the most consistent indicator of how a teacher presents climate science to their own students.
  • Trying to continue with lessons on climate science despite this intensifying atmosphere of hostility has forced some teachers to become savvier — or more secretive — about how they present the information to their students. In Texas, Nina Corley is careful to keep explicit mentions of climate change out of her lessons, for fear that her skeptical administrators might try to censor the science. “The administrators in a school can have total control, because they’re your boss, you have to remember that. It’s going to be how you word it,” she said. “I’m not going to say my lesson plan is on climate change today, I’ll just talk about how we’re investigating the effects of carbon dioxide.”
  • Recalling one student who was hostile to her lessons on climate change, Erin Stutzman realized the more personal ramifications catalyzed by the student changing his mind. “He was tightly engrossed in the skepticism, that belief was engrained in him. And his initial resistance wasn’t to the science, really, it was that someone was challenging his parents and his friend’s parents,”
tongoscar

Donald Trump is the moderate candidate in the 2020 presidential election - Washington T... - 0 views

  • Washington has a way of capturing presidents more than they conquer its bureaucracy — in current parlance, President Trump has become an alligator more than he has drained the swamp.
  • If one of the terribly serious six lands in the Oval Office, don’t look for that to change. With moderate revisions, Nancy Pelosi endorsed the U.S.-Mexico-Canada Agreement. None of the Democratic aspirants could end the festering confrontation with China without winning fundamental reforms in its socialist market economy, which the Chinese Communist Party simply won’t tolerate, or facing a revolt within their own party in Congress.
  • The economy entered 2020 in reasonably good shape, but thanks to Boeing’s problems and the coronavirus lockdown of China we will be lucky to get 2 GDP percent growth this year. A cooling economy means the improvements in wages and wealth of lower income Americans Mr. Trump bragged about in his State of the Union address will diminish.
sanderk

Book Review: Lee Smolin's 'Time Reborn' : 13.7: Cosmos And Culture : NPR - 0 views

  • Time, of course, seems real to us. We live in and through time. But to physicists, time's fundamental reality is an illusion.
  • Ever since Newton, physicists have been developing ever-more exact laws describing the behavior of the world. These laws live outside of time because they don't change. That means these laws are more real than time.
  • The idea of timeless laws works fine when it's applied to parts of the Universe, like jet planes and GPS satellites, but Smolin argues, "it falls apart when applied to the Universe as whole."
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  • Making time so real that nothing can escape it leads Smolin to what we might call his greatest heresy. The laws of physics, he says, evolve just like species in an ecosystem.
  • The laws must live within time like everything else and that means they must change.
anniina03

The Human Brain Evolved When Carbon Dioxide Was Lower - The Atlantic - 0 views

  • Kris Karnauskas, a professor of ocean sciences at the University of Colorado, has started walking around campus with a pocket-size carbon-dioxide detector. He’s not doing it to measure the amount of carbon pollution in the atmosphere. He’s interested in the amount of CO₂ in each room.
  • The indoor concentration of carbon dioxide concerns him—and not only for the usual reason. Karnauskas is worried that indoor CO₂ levels are getting so high that they are starting to impair human cognition.
  • Carbon dioxide, the same odorless and invisible gas that causes global warming, may be making us dumber.
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  • “This is a hidden impact of climate change … that could actually impact our ability to solve the problem itself,” he said.
  • The science is, at first glance, surprisingly fundamental. Researchers have long believed that carbon dioxide harms the brain at very high concentrations. Anyone who’s seen the film Apollo 13 (or knows the real-life story behind it) may remember a moment when the mission’s three astronauts watch a gauge monitoring their cabin start to report dangerous levels of a gas. That gauge was measuring carbon dioxide. As one of the film’s NASA engineers remarks, if CO₂ levels rise too high, “you get impaired judgement, blackouts, the beginning of brain asphyxia.”
  • The same general principle, he argues, could soon affect people here on Earth. Two centuries of rampant fossil-fuel use have already spiked the amount of CO₂ in the atmosphere from about 280 parts per million before the Industrial Revolution to about 410 parts per million today. For Earth as a whole, that pollution traps heat in the atmosphere and causes climate change. But more locally, it also sets a baseline for indoor levels of carbon dioxide: You cannot ventilate a room’s carbon-dioxide levels below the global average.
  • In fact, many rooms have a much higher CO₂ level than the atmosphere, since ventilation systems don’t work perfectly.
  • On top of that, some rooms—in places such as offices, hospitals, and schools—are filled with many breathing people, that is, many people who are themselves exhaling carbon dioxide.
  • As the amount of atmospheric CO₂ keeps rising, indoor CO₂ will climb as well.
  • in one 2016 study Danish scientists cranked up indoor carbon-dioxide levels to 3,000 parts per million—more than seven times outdoor levels today—and found that their 25 subjects suffered no cognitive impairment or health issues. Only when scientists infused that same air with other trace chemicals and organic compounds emitted by the human body did the subjects begin to struggle, reporting “headache, fatigue, sleepiness, and difficulty in thinking clearly.” The subjects also took longer to solve basic math problems. The same lab, in another study, found that indoor concentrations of pure CO₂ could get to 5,000 parts per million and still cause little difficulty, at least for college students.
  • But other research is not as optimistic. When scientists at NASA’s Johnson Space Center tested the effects of CO₂ on about two dozen “astronaut-like subjects,” they found that their advanced decision-making skills declined with CO₂ at 1,200 parts per million. But cognitive skills did not seem to worsen as CO₂ climbed past that mark, and the intensity of the effect seemed to vary from person to person.
  • There’s evidence that carbon-dioxide levels may impair only the most complex and challenging human cognitive tasks. And we still don’t know why.
  • No one has looked at the effects of indoor CO₂ on children, the elderly, or people with health problems. Likewise, studies have so far exposed people to very high carbon levels for only a few hours, leaving open the question of what days-long exposure could do.
  • Modern humans, as a species, are only about 300,000 years old, and the ambient CO₂ that we encountered for most of our evolutionary life—from the first breath of infants to the last rattle of a dying elder—was much lower than the ambient CO₂ today. I asked Gall: Has anyone looked to see if human cognition improves under lower carbon-dioxide levels? If you tested someone in a room that had only 250 parts per million of carbon dioxide—a level much closer to that of Earth’s atmosphere three centuries or three millennia ago—would their performance on tests improve? In other words, is it possible that human cognitive ability has already declined?
manhefnawi

Quantum math makes human irrationality more sensible | Science News - 0 views

  • People often say that quantum physics is weird because it doesn’t seem rational. But of course, if you think about it, quantum physics is actually perfectly rational, if you understand the math. It’s people who typically seem irrational.
  • In fact, some psychologists have spent their careers making fun of people for irrational choices when presented with artificial situations amenable to statistical analysis. Making allowances for sometimes shaky methodology, there really are cases where people make choices that don’t seem to make much sense.
  • In 1929, Bohr noted that quantum physics refuted the view that analyzing brain processes could “reveal a causal chain that formed a unique representation of the emotional mental experience.” But in quantum physics, Bohr emphasized, an observer inevitably interacted with whatever was being observed, so “any attempt to acquire a knowledge of such [mental] processes involves a fundamentally uncontrollable interference with their course.”
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  • “If we replace ‘human judgments’ with ‘physical measurements,’” Wang and colleagues write, “and replace ‘cognitive system’ with ‘physical system,’ then these are exactly the same reasons that led physicists to develop quantum theory in the first place.”
krystalxu

The Difference Between Philosophy and Psychology | Difference Between - 0 views

  • Psychology is an academic discipline and applied science, which seeks to understand the role of mental processes in human behaviour, whilst also exploring the physiological and biological functions that underpin cognitive processing and behaviour.
  • This involves hypothesis testing that result in logical conclusions, supported by both observations and physical data.
  • Philosophy is the study of general and fundamental problems that concern concrete matters such as values, existence, knowledge, reason, and language.
tongoscar

Coronavirus latest news: British passengers left in limbo over Diamond Princess evacuation - 0 views

  • British passengers on the coronavirus-hit cruise ship moored near Tokyo have criticised the "slow" response from the UK government, stating that they feel like they have been "left behind". 
  • Yesterday, some 500 passengers who tested negative were allowed to disembark, but the British Foreign Office (FCO) has urged UK nationals to stay on board until they can organise a flight home. 
  • People in China are turning to interesting methods to avoid human-to-human contact amid the coronavirus outbreak.
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  • The World Health Organization has said that the first person to be infected with the disease in Africa is now in recovery. 
  • China’s central bank said on Wednesday the impact of the coronavirus on the economy will be limited as the epidemic has not changed the country’s economic fundamentals, Reuters reported.
  • Egypt, Algeria and South Africa were at the highest risk of importing a COVID-19 case from China, but had moderate to high preparedness and low vulnerability. 
krystalxu

Similarities Between Eastern & Western Philosophy (Article) - Ancient History Encyclopedia - 0 views

  • The fundamental purpose of philosophy is to find meaning in one's life and purpose to one's path, and there is no major difference between eastern and western philosophy according to that understanding.
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