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Javier E

Wine-tasting: it's junk science | Life and style | The Observer - 0 views

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  • Hodgson approached the organisers of the California State Fair wine competition, the oldest contest of its kind in North America, and proposed an experiment for their annual June tasting sessions.Each panel of four judges would be presented with their usual "flight" of samples to sniff, sip and slurp. But some wines would be presented to the panel three times, poured from the same bottle each time. The results would be compiled and analysed to see whether wine testing really is scientific.
  • Results from the first four years of the experiment, published in the Journal of Wine Economics, showed a typical judge's scores varied by plus or minus four points over the three blind tastings. A wine deemed to be a good 90 would be rated as an acceptable 86 by the same judge minutes later and then an excellent 94.
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  • Hodgson's findings have stunned the wine industry. Over the years he has shown again and again that even trained, professional palates are terrible at judging wine."The results are disturbing," says Hodgson from the Fieldbrook Winery in Humboldt County, described by its owner as a rural paradise. "Only about 10% of judges are consistent and those judges who were consistent one year were ordinary the next year."Chance has a great deal to do with the awards that wines win."
  • French academic Frédéric Brochet tested the effect of labels in 2001. He presented the same Bordeaux superior wine to 57 volunteers a week apart and in two different bottles – one for a table wine, the other for a grand cru.The tasters were fooled.When tasting a supposedly superior wine, their language was more positive – describing it as complex, balanced, long and woody. When the same wine was presented as plonk, the critics were more likely to use negatives such as weak, light and flat.
  • In 2011 Professor Richard Wiseman, a psychologist (and former professional magician) at Hertfordshire University invited 578 people to comment on a range of red and white wines, varying from £3.49 for a claret to £30 for champagne, and tasted blind.People could tell the difference between wines under £5 and those above £10 only 53% of the time for whites and only 47% of the time for reds. Overall they would have been just as a successful flipping a coin to guess.
  • why are ordinary drinkers and the experts so poor at tasting blind? Part of the answer lies in the sheer complexity of wine.For a drink made by fermenting fruit juice, wine is a remarkably sophisticated chemical cocktail. Dr Bryce Rankine, an Australian wine scientist, identified 27 distinct organic acids in wine, 23 varieties of alcohol in addition to the common ethanol, more than 80 esters and aldehydes, 16 sugars, plus a long list of assorted vitamins and minerals that wouldn't look out of place on the ingredients list of a cereal pack. There are even harmless traces of lead and arsenic that come from the soil.
  • "People underestimate how clever the olfactory system is at detecting aromas and our brain is at interpreting them," says Hutchinson."The olfactory system has the complexity in terms of its protein receptors to detect all the different aromas, but the brain response isn't always up to it. But I'm a believer that everyone has the same equipment and it comes down to learning how to interpret it." Within eight tastings, most people can learn to detect and name a reasonable range of aromas in wine
  • People struggle with assessing wine because the brain's interpretation of aroma and bouquet is based on far more than the chemicals found in the drink. Temperature plays a big part. Volatiles in wine are more active when wine is warmer. Serve a New World chardonnay too cold and you'll only taste the overpowering oak. Serve a red too warm and the heady boozy qualities will be overpowering.
  • Colour affects our perceptions too. In 2001 Frédérick Brochet of the University of Bordeaux asked 54 wine experts to test two glasses of wine – one red, one white. Using the typical language of tasters, the panel described the red as "jammy' and commented on its crushed red fruit.The critics failed to spot that both wines were from the same bottle. The only difference was that one had been coloured red with a flavourless dye
  • Other environmental factors play a role. A judge's palate is affected by what she or he had earlier, the time of day, their tiredness, their health – even the weather.
  • Robert Hodgson is determined to improve the quality of judging. He has developed a test that will determine whether a judge's assessment of a blind-tasted glass in a medal competition is better than chance. The research will be presented at a conference in Cape Town this year. But the early findings are not promising."So far I've yet to find someone who passes," he says.
Javier E

Beyond Billboards - The Daily Dish | By Andrew Sullivan - 0 views

  • The Atlantic Home todaysDate();Sunday, December 12, 2010Sunday, December 12, 2010 Go Follow the Atlantic » atlanticPrintlayoutnavigation()Politics Presented ByBack to the Gold Standard? Joshua GreenSenate Dems Lose Vote on 'Don't Ask' RepealMegan Scully & Dan FriedmanA Primary Challenge to Obama? Marc Ambinder Business Presented byif (typeof window.dartOrd == 'undefined') {window.dartOrd = ('000000000' + Math.ceil(Math.random()*1000000000).toString()).slice(-9);}jsProperties = 'TheAtlanticOnline/channel_business;pos=navlogo;sz=88x31,215x64;tile=1';document.write('');if( $(".adNavlogo").html().search("grey.gif") != -1 ){$(".adNavlogo").hide();}Will the Economy Get Jobs for Christmas?Daniel Indiviglio27 Key Facts About US ExportsDerek ThompsonThe Last StimulusDerek Thompson Culture Presented ByThe 10 Biggest Sports Stories of 2010Eleanor Barkhorn and Kevin Fallon al
  • at the force behind all that exists actually intervened in the consciousness of humankind in the form of a man so saturated in godliness that merely being near him healed people of the weight of the world's sins.
Javier E

How To Look Smart, Ctd - The Daily Dish | By Andrew Sullivan - 0 views

  • The Atlantic Home todaysDate();Tuesday, February 8, 2011Tuesday, February 8, 2011 Go Follow the Atlantic » Politics Presented by When Ronald Reagan Endorsed Ron Paul Joshua Green Epitaph for the DLC Marc Ambinder A Hard Time Raising Concerns About Egypt Chris Good Business Presented by Could a Hybrid Mortgage System Work? Daniel Indiviglio Fighting Bias in Academia Megan McArdle The Tech Revolution For Seniors Derek Thompson Culture Presented By 'Tiger Mother' Creates a New World Order James Fallows Justin Bieber: Daydream Believer James Parker <!-- /li
  • these questions tend to overlook the way IQ tests are designed. As a neuropsychologist who has administered hundreds of these measures, I can tell you that their structures reflect a deeply embedded bias toward intelligence as a function of reading skills
tongoscar

Live Updates: Economic Fallout From Coronavirus Grows - The New York Times - 0 views

  • Reports from manufacturing, banking and other sectors showed the worsening impact of the epidemic, which has brought much of China’s economy to a standstill.
  • Right NowJapan plans to release about 500 cruise ships passengers on Wednesday.
  • Economic fallout from the new coronavirus epidemic continued to spread on Tuesday, with new evidence emerging in manufacturing, financial markets, commodities, banking and other sectors.
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  • U.S. stocks declined on Tuesday, a day after Apple warned that it would miss its sales forecasts due to disruption in China, as concerns about the impact of the outbreak weighed on the outlook for the global economy.
  • Half of China’s population is facing new travel restrictions.Image
  • At least 150 million people in China — over 10 percent of the country’s population — are living under government restrictions on how often they can leave their homes, The New York Times found in examining dozens of local government announcements and reports from state-run news outlets.
  • Japan says 500 people will be released from cruise ship after more cases confirmed.
  • Australia plans to repatriate about 200 of its citizens aboard the ship on Wednesday, and other countries have similar plans, but Japanese officials did not say whether any of those people were among the 500 who would be allowed to disembark.
  • Britain prepares to evacuate citizens from cruise ship.
  • The new virus is deadlier than the one that causes the flu, Chinese figures suggest.Image
  • The director of a hospital in Wuhan has died from the virus.
  • Stigma surrounding virus impacts communities in Europe.
  • Domestic workers from the Philippines will be permitted to return to Hong Kong.Image
  • South Korea’s leader warns of a dire impact on economy.
  • Cruise ship passengers blocked from leaving Cambodia.
tongoscar

Coronavirus Live Updates: China Is Tracking Travelers From Hubei - The New York Times - 0 views

  • To combat the spread of the coronavirus, Chinese officials are using a combination of technology and policing to track movements of citizens who may have visited Hubei Province.
  • Mobile phone owners in China get their service from one of three state-run telecommunications firms, which this week introduced a feature for subscribers to send text messages to a hotline that generates a list of provinces they have recently visited. That has created a new way for the authorities to see where citizens have traveled.At a high-speed rail station in the eastern city of Yiwu on Tuesday, officials in hazmat suits demanded that passengers send the text messages and then show their location information to the authorities before being permitted to leave the station. Those who had passed through Hubei were unlikely to be allowed entry.
  • Top officials in Beijing on Thursday expanded their mass roundup of sick or possibly infected people beyond Wuhan, the city at the center of the outbreak, to include other cities in Hubei Province that have been hit hard by the crisis, according to the state-run CCTV broadcaster.
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  • Chinese officials reported Friday that a surge in new infections was continuing, though not as markedly as the day before, when the number of people confirmed to have the virus in Hubei Province skyrocketed by 14,840 cases.
  • Japan has confirmed its first death from the virus.
  • For a moment on Thursday, it seemed as if there might be some good news from the Diamond Princess, the cruise ship being held in the port of Yokohama in Japan, when the authorities said they would release some passengers to shore to finish their quarantine.Instead, Japanese health officials announced the first death from the virus in the country, of a woman in her 80s. It was third death from the virus outside mainland China. The woman had no record of travel there.
  • The Centers for Disease Control said Thursday that a person under quarantine at a military base in San Antonio had tested positive for the virus, bringing the number of confirmed coronavirus patients in the United States to 15.
  • For the first time in a decade, global oil demand is expected to fall.
  • The arts world, too, is feeling the squeeze.Image
  • Movie releases have been canceled in China and symphony tours suspended. A major art fair in Hong Kong was called off. And spring art auctions half a world away in New York have been postponed because well-heeled Chinese buyers may find it difficult to travel to them.
  • The U.S. reported its 15th case after a person under quarantine tested positive.
  • The travel industry in Asia has been upended.Image
  • China ousted a provincial leader at the center of the outbreak.
  • China’s leader, Xi Jinping, on Thursday summarily fired two top Communist Party officials from Hubei Province, exacting political punishment for the regional government’s handling of the crisis.
  • A second citizen-journalist in Wuhan has disappeared.
  • A video blogger in the city of Wuhan who had been documenting conditions at overcrowded hospitals at the heart of the outbreak has disappeared, raising concerns among his supporters that he may have been detained by the authorities.The blogger, Fang Bin, is the second citizen journalist in the city to have gone missing in a week after criticizing the government’s response to the coronavirus epidemic.Mr. Fang began posting videos from hospitals in Wuhan on YouTube last month, including one that showed a pile of body bags in a minibus. In early February, Mr. Fang said he had been briefly detained and questioned. A few days later, he filmed an exchange he had with strangers who showed up at his apartment claiming to bring him food.Mr. Fang’s last video, posted on Sunday, was a message written on a piece of paper: “All citizens resist, hand power back to the people.”Last week, Chen Qiushi, a citizen-journalist and lawyer in Wuhan who recorded the plight of patients and the shortage of hospital supplies, vanished, according to his friends.
  • South Korea quarantined hundreds of soldiers who visited China.
pier-paolo

Computers Already Learn From Us. But Can They Teach Themselves? - The New York Times - 0 views

  • We teach computers to see patterns, much as we teach children to read. But the future of A.I. depends on computer systems that learn on their own, without supervision, researchers say.
  • When a mother points to a dog and tells her baby, “Look at the doggy,” the child learns what to call the furry four-legged friends. That is supervised learning. But when that baby stands and stumbles, again and again, until she can walk, that is something else.Computers are the same.
  • ven if a supervised learning system read all the books in the world, he noted, it would still lack human-level intelligence because so much of our knowledge is never written down.
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  • upervised learning depends on annotated data: images, audio or text that is painstakingly labeled by hordes of workers. They circle people or outline bicycles on pictures of street traffic. The labeled data is fed to computer algorithms, teaching the algorithms what to look for. After ingesting millions of labeled images, the algorithms become expert at recognizing what they have been taught to see.
  • There is also reinforcement learning, with very limited supervision that does not rely on training data. Reinforcement learning in computer science,
  • is modeled after reward-driven learning in the brain: Think of a rat learning to push a lever to receive a pellet of food. The strategy has been developed to teach computer systems to take actions.
  • My money is on self-supervised learning,” he said, referring to computer systems that ingest huge amounts of unlabeled data and make sense of it all without supervision or reward. He is working on models that learn by observation, accumulating enough background knowledge that some sort of common sense can emerge.
  • redict outcomes and choose a course of action. “Everybody agrees we need predictive learning, but we disagree about how to get there,”
  • A more inclusive term for the future of A.I., he said, is “predictive learning,” meaning systems that not only recognize patterns but also p
  • A huge fraction of what we do in our day-to-day jobs is constantly refining our mental models of the world and then using those mental models to solve problems,” he said. “That encapsulates an awful lot of what we’d like A.I. to do.”Image
  • Currently, robots can operate only in well-defined environments with little variation.
  • “Our working assumption is that if we build sufficiently general algorithms, then all we really have to do, once that’s done, is to put them in robots that are out there in the real world doing real things,”
Javier E

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

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

Reality Is Broken. We Have AI Photos to Blame. - WSJ - 0 views

  • AI headshots aren’t yet perfect, but they’re so close I expect we’ll start seeing them on LinkedIn, Tinder and other social profiles. Heck, we may already see them. How would we know?
  • Welcome to our new reality, where nothing is real. We now have photos initially captured with cameras that AI changes into something that never was
  • Or, like the headshot above, there are convincingly photographic images AI generates out of thin air.
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  • Adobe ADBE 7.19%increase; green up pointing triangle, maker of the Photoshop, released a new tool in Firefly, its generative-AI image suite, that lets you change and add in parts of a photo with AI imagery. Earlier this month, Google showed off a new Magic Editor, initially for Pixel phones, that allows you to easily manipulate a scene. And people are all over TikTok posting the results of AI headshot services like Try It On.
  • After testing a mix of AI editing and generating tools, I just have one question for all of you armchair philosophers: What even is a photo anymore?
  • I have always wondered what I’d look like as a naval officer. Now I don’t have to. I snapped a selfie and uploaded it to Adobe Firefly’s generative-fill tool. One click of the Background button and my cluttered office was wiped out. I typed “American flag” and in it went. Then I selected the Add tool, erased my torso and typed in “naval uniform.” Boom! Adobe even found me worthy of numerous awards and decorations.
  • Astronaut, fighter pilot, pediatrician. I turned myself into all of them in under a minute each. The AI-generated images did have noticeable issues: The uniforms were strange and had odd lettering, the stethoscope seemed to be cut in half and the backgrounds were warped and blurry. Yet the final images are fun, and the quality will only get better.&nbsp;
  • In FaceApp, for iOS and Android, I was able to change my frown to a smile—with the right amount of teeth! I was also able to add glasses and change my hair color. Some said it looked completely real, others who know me well figured something was up. “Your teeth look too perfect.”
  • The real reality-bending happens in Midjourney, which can turn text prompts into hyper-realistic images and blend existing images in new ways. The image quality of generated images exceeds OpenAI’s Dall-E and Adobe’s Firefly.
  • it’s more complicated to use, since it runs through the chat app Discord. Sign up for service, access the Midjourney bot through your Discord account (via web or app), then start typing in prompts. My video producer Kenny Wassus started working with a more advanced Midjourney plugin called Insight Face Swap-Bot, which allows you to sub in a face to a scene you’ve already made. He’s become a master—making me a Game of Thrones warrior and a Star Wars rebel, among other things.
  • We’re headed for a time when we won’t be able to tell how manipulated a photo is, what parts are real or fake.
  • when influential messages are conveyed through images—be they news or misinformation—people have reason to know a photo’s origin and what’s been done to it.
  • Firefly adds a “content credential,” digital information baked into the file, that says the image was manipulated with AI. Adobe is pushing to get news, tech and social-media platforms to use this open-source standard so we can all understand where the images we see came from.
  • So, yeah, our ability to spot true photos might depend on the cooperation of the entire internet. And by “true photo,” I mean one that captures a real moment—where you’re wearing your own boring clothes and your hair is just so-so, but you have the exact right number of teeth in your head.
runlai_jiang

A New Antidote for Noisy Airports: Slower Planes - WSJ - 0 views

  • Urban airports like Boston’s Logan thought they had silenced noise issues with quieter planes. Now complaints pour in from suburbs 10 to 15 miles away because new navigation routes have created relentless noise for some homeowners. Photo: Alamy By Scott McCartney Scott McCartney The Wall Street Journal BiographyScott McCartney @MiddleSeat Scott.McCartney@wsj.com March 7, 2018 8:39 a.m. ET 146 COMMENTS saveSB107507240220
  • It turns out engines aren’t the major culprit anymore. New airplanes are much quieter. It’s the “whoosh” that big airplanes make racing through the air.
  • Computer models suggest slowing departures by 30 knots—about 35 miles an hour—would reduce noise on the ground significantly.
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  • The FAA says it’s impressed and is moving forward with recommendations Boston has made.
  • . A working group is forming to evaluate the main recommendation to slow departing jets to a speed limit of 220 knots during the climb to 10,000 feet, down from 250 knots.
  • New routes put planes over quiet communities. Complaints soared. Phoenix neighborhoods sued the FAA; Chicago neighborhoods are pushing for rotating runway use. Neighborhoods from California to Washington, D.C., are fighting the new procedures that airlines and the FAA insist are vital to future travel.
  • “It’s a concentration problem. It’s a frequency problem. It’s not really a noise problem.”
  • “The flights wake you up. We get a lot of complaints from young families with children,” says Mr. Wright, a data analyst who works from home for a major health-care company.
  • In Boston, an analysis suggested only 54% of the complaints Massport received resulted from noise louder than 45 decibels—about the level of background noise. When it’s relentless, you notice it more.
  • With a 30-knot reduction, noise directly under the flight track would decrease by between 1.5 and 5 decibels and the footprint on the ground would get a lot skinnier, sharply reducing the number of people affected, Mr. Hansman says.
  • The industry trade association Airlines for America has offered cautious support of the Boston recommendations. In a statement, the group said the changes must be safe, work with a variety of aircraft and not reduce the airport’s capacity for takeoffs and landings.
  • Air-traffic controllers will need to delay a departure a bit to put more room between a slower plane and a faster one, or modify its course slightly.
manhefnawi

Ask Ethan: Where Is The Line Between Mathematics And Physics? - 0 views

  • What, then, are you supposed to do when the mathematics gets more abstract? What do you do when you get to General Relativity, or Quantum Field Theory, or even more far afield into the speculative realms of cosmic inflation, extra dimensions, grand unified theories, or string theory? The mathematical structures that you build to describe these possibilities simply are what they are; on their own, they won't offer you any physical insights. But if you can pull out either observable quantities, or connections to physically observable quantities, that's when you start crossing over into something that you can test and observe.
  • Now, string theory (or, more accurately, string theories) have their own constraints governing them, as do the forces in our Universe, so it isn't provably clear that there's a one-to-one correspondence between our four-dimensional Universe with gravity, electromagnetism, and the nuclear forces and any version of string theory. It's an interesting conjecture, and it has found some applications to the real world: in the study of quark-gluon plasmas. In that sense, it's more than mathematics: it's physics. But where it strays from physics into pure mathematics is not yet fully determined.
  • If you describe the Universe precisely, and you can make quantitative predictions about it, you're physics. If those predictions turn out to be accurate and reflective of reality, then you're physics that's correct and useful. If those predictions are demonstrably wrong, you're physics that doesn't describe our Universe: you're a failed attempt at a physical theory. But if your equations have no connection at all to the physical Universe, and cannot be related to anything you can ever hope to someday observe or measure, you're firmly in the realm of mathematics; the divorce from physics will then be final. Mathematics is the language we use to describe physics, but not everything mathematical is physically meaningful. The connection, and where it breaks down, can only be determined by looking at the Universe itself.
kushnerha

Aphantasia: A life without mental images - BBC News - 0 views

  • Most people can readily conjure images inside their head - known as their mind's eye. But this year scientists have described a condition, aphantasia, in which some people are unable to visualise mental images.
  • Our memories are often tied up in images, think back to a wedding or first day at school. As a result, Niel admits, some aspects of his memory are "terrible", but he is very good at remembering facts. And, like others with aphantasia, he struggles to recognise faces.Yet he does not see aphantasia as a disability, but simply a different way of experiencing life.
  • "When I think about my fiancee there is no image, but I am definitely thinking about her, I know today she has her hair up at the back, she's brunette."But I'm not describing an image I am looking at, I'm remembering features about her, that's the strangest thing and maybe that is a source of some regret."The response from his mates is a very sympathetic: "You're weird."
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  • One person who took part in a study into aphantasia said he had started to feel "isolated" and "alone" after discovering that other people could see images in their heads. Being unable to reminisce about his mother years after her death led to him being "extremely distraught".
  • Adam Zeman, a professor of cognitive and behavioural neurology, wants to compare the lives and experiences of people with aphantasia and its polar-opposite hyperphantasia.His team, based at the University of Exeter, coined the term aphantasia this year
  • How we imagine is clearly very subjective - one person's vivid scene could be another's grainy picture.But Prof Zeman is certain that aphantasia is real. People often report being able to dream in pictures, and there have been reported cases of people losing the ability to think in images after a brain injury. He is adamant that aphantasia is "not a disorder" and says it may affect up to one in 50 people.
anonymous

U.S. Disaster Costs Doubled in 2020, Reflecting Costs of Climate Change - The New York ... - 0 views

  • Hurricanes, wildfires and other disasters across the United States caused $95 billion in damage last year, according to new data, almost double the amount in 2019 and the third-highest losses since 2010.
  • Those losses occurred during a year that was one of the warmest on record
  • “Climate change plays a role in this upward trend of losses,”
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  • continued building in high-risk areas had also contributed to the growing losses.Image
  • Topping the list was Hurricane Laura, which caused $13 billion in damage when it struck Southwestern Louisiana in late August.
  • The storms caused $43 billion in losses, almost half the total for all U.S. disasters last year.
  • In addition to the number of storms, the 2020 hurricane season was unusually devastating because climate change is making storms more likely to stall once they hit land
  • The next costliest category of natural disasters was convective storms, which includes thunderstorms, tornadoes, hailstorms and derechos, and caused $40 billion in losses last year.
  • Wildfires caused another $16 billion in losses. Last year’s wildfires stood out not just because of the numbers of acres burned or houses destroyed
  • Homeowners and governments around the United States need to do a better job of making buildings and communities more resilient to natural disasters
  • “We can’t, as an industry, continue to just collect more and more money, and rebuild and rebuild and rebuild in the same way,” Mr. Griffin said in an interview. “We’ve got to place an emphasis on preventing and reducing loss.”
  • The single costliest disaster of 2020 was a series of floods that hit China last summer, which according to Munich Re caused $17 billion worth of damage.
  • Of the $67 billion in losses from natural disasters across Asia last year, only $3 billion, or 4.5 percent, was covered by insurance.
fischerry

Why English and general knowledge are important | Free Malaysia Today - 0 views

  • &nbsp;64&nbsp;2&nbsp;1&nbsp;70 Why English and general knowledge are important
  • Proficiency in English is a normal requirement in the private sector, particularly in the tourism industry.
  • Instead of using our diversity as our strength, bigotry has turned it into a weakness. Instead of embracing English to reach out to the world, we have let it slip and are happy to be local champions.
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  • If feelings of superiority are prevalent, there will be no need to learn from others or strive to be better. It will also become much easier to pull others down.
  •  
    Language, and embracing english is important, especially in developing countries. Let's spread education.
caelengrubb

Why Is Memory So Good and So Bad? - Scientific American - 0 views

  • Memories of visual images (e.g., dinner plates) are stored in what is called visual memory.
  • Our minds use visual memory to perform even the simplest of computations; from remembering the face of someone we’ve just met, to remembering what time it was last we checked. Without visual memory, we wouldn’t be able to store—and later retrieve—anything we see.
  • ust as a computer’s memory capacity constrains its abilities, visual memory capacity has been correlated with a number of higher cognitive abilities, including academic success, fluid intelligence (the ability to solve novel problems), and general comprehension.
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  • For many reasons, then, it would be very useful to understand how visual memory facilitates these mental operations, as well as constrains our ability to perform them
  • Visual working memory is where visual images are temporarily stored while your mind works away at other tasks—like a whiteboard on which things are briefly written and then wiped away. We rely on visual working memory when remembering things over brief intervals, such as when copying lecture notes to a notebook.
  • Which is exactly what happened: Zhang &amp; Luck found that participants were either very precise, or they completely guessed; that is, they either remembered the square’s color with great accuracy, or forgot it completely
  • The participants had a simple task: to recall the color of one particular square, not knowing in advance which square they would be asked to recall. The psychologists assumed that measuring how visual working memory behaves over increasing demands (i.e., the increasing durations of 1,4 or 10 seconds) would reveal something about how the system works.
  • If short-term visual memories fade away—if they are gradually wiped away from the whiteboard—then after longer intervals participants’ accuracy in remembering the colors should still be high, deviating only slightly from the square’s original color. But if these memories are wiped out all at once—if the whiteboard is left untouched until, all at once, scrubbed clean—then participants should make very precise responses (corresponding to instances when the memories are still untouched) and then, after the interval grows too long, very random guesses.
  • UC Davis psychologists Weiwei Zhang and Steven Luck have shed some light on this problem. In their experiment, participants briefly saw three colored squares flashed on a computer screen, and were asked to remember the colors of each square. Then, after 1, 4 or 10 seconds the squares re-appeared, except this time their colors were missing, so that all that was visible were black squares outlined in white.
  • But this, it turns out, is not true of all memories
  • In a recent paper, Researchers at MIT and Harvard found that, if a memory can survive long enough to make it into what is called “visual long-term memory,” then it doesn’t have to be wiped out at all.
  • Talia Konkle and colleagues showed participants a stream of three thousand images of different scenes, such as ocean waves, golf courses or amusement parks. Then, participants were shown two hundred pairs of images—an old one they had seen in the first task, and a completely new one—and asked to indicate which was the old one.
  • Participants were remarkably accurate at spotting differences between the new and old images—96 percent
  • In a recent review, researchers at Harvard and MIT argue that the critical factor is how meaningful the remembered images are—whether the content of the images you see connects to pre-existing knowledge about them
  • This prior knowledge changes how these images are processed, allowing thousands of them to be transferred from the whiteboard of short-term memory into the bank vault of long-term memory, where they are stored with remarkable detail.
  • Together, these experiments suggest why memories are not eliminated equally— indeed, some don’t seem to be eliminated at all. This might also explain why we’re so hopeless at remembering some things, and yet so awesome at remembering others.
Javier E

Meet DALL-E, the A.I. That Draws Anything at Your Command - The New York Times - 0 views

  • A half decade ago, the world’s leading A.I. labs built systems that could identify objects in digital images and even generate images on their own, including flowers, dogs, cars and faces. A few years later, they built systems that could do much the same with written language, summarizing articles, answering questions, generating tweets and even writing blog posts.
  • DALL-E is a notable step forward because it juggles both language and images and, in some cases, grasps the relationship between the two
  • “We can now use multiple, intersecting streams of information to create better and better technology,”
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  • when Mr. Nichol tweaked his requests a little, adding or subtracting a few words here or there, it provided what he wanted. When he asked for “a piano in a living room filled with sand,” the image looked more like a beach in a living room.
  • DALL-E is what artificial intelligence researchers call a neural network, which is a mathematical system loosely modeled on the network of neurons in the brain.
  • the same technology that recognizes the commands spoken into smartphones and identifies the presence of pedestrians as self-driving cars navigate city streets.
  • A neural network learns skills by analyzing large amounts of data. By pinpointing patterns in thousands of avocado photos, for example, it can learn to recognize an avocado.
  • DALL-E looks for patterns as it analyzes millions of digital images as well as text captions that describe what each image depicts. In this way, it learns to recognize the links between the images and the words.
Javier E

Eric Kandel's Visions - The Chronicle Review - The Chronicle of Higher Education - 0 views

  • Judith, "barely clothed and fresh from the seduction and slaying of Holofernes, glows in her voluptuousness. Her hair is a dark sky between the golden branches of Assyrian trees, fertility symbols that represent her eroticism. This young, ecstatic, extravagantly made-up woman confronts the viewer through half-closed eyes in what appears to be a reverie of orgasmic rapture," writes Eric Kandel in his new book, The Age of Insight. Wait a minute. Writes who? Eric Kandel, the Nobel-winning neuroscientist who's spent most of his career fixated on the generously sized neurons of sea snails
  • Kandel goes on to speculate, in a bravura paragraph a few hundred pages later, on the exact neurochemical cognitive circuitry of the painting's viewer:
  • "At a base level, the aesthetics of the image's luminous gold surface, the soft rendering of the body, and the overall harmonious combination of colors could activate the pleasure circuits, triggering the release of dopamine. If Judith's smooth skin and exposed breast trigger the release of endorphins, oxytocin, and vasopressin, one might feel sexual excitement. The latent violence of Holofernes's decapitated head, as well as Judith's own sadistic gaze and upturned lip, could cause the release of norepinephrine, resulting in increased heart rate and blood pressure and triggering the fight-or-flight response. In contrast, the soft brushwork and repetitive, almost meditative, patterning may stimulate the release of serotonin. As the beholder takes in the image and its multifaceted emotional content, the release of acetylcholine to the hippocampus contributes to the storing of the image in the viewer's memory. What ultimately makes an image like Klimt's 'Judith' so irresistible and dynamic is its complexity, the way it activates a number of distinct and often conflicting emotional signals in the brain and combines them to produce a staggeringly complex and fascinating swirl of emotions."
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  • His key findings on the snail, for which he shared the 2000 Nobel Prize in Physiology or Medicine, showed that learning and memory change not the neuron's basic structure but rather the nature, strength, and number of its synaptic connections. Further, through focus on the molecular biology involved in a learned reflex like Aplysia's gill retraction, Kandel demonstrated that experience alters nerve cells' synapses by changing their pattern of gene expression. In other words, learning doesn't change what neurons are, but rather what they do.
  • In Search of Memory (Norton), Kandel offered what sounded at the time like a vague research agenda for future generations in the budding field of neuroaesthetics, saying that the science of memory storage lay "at the foothills of a great mountain range." Experts grasp the "cellular and molecular mechanisms," he wrote, but need to move to the level of neural circuits to answer the question, "How are internal representations of a face, a scene, a melody, or an experience encoded in the brain?
  • Since giving a talk on the matter in 2001, he has been piecing together his own thoughts in relation to his favorite European artists
  • The field of neuroaesthetics, says one of its founders, Semir Zeki, of University College London, is just 10 to 15 years old. Through brain imaging and other studies, scholars like Zeki have explored the cognitive responses to, say, color contrasts or ambiguities of line or perspective in works by Titian, Michelangelo, Cubists, and Abstract Expressionists. Researchers have also examined the brain's pleasure centers in response to appealing landscapes.
  • it is fundamental to an understanding of human cognition and motivation. Art isn't, as Kandel paraphrases a concept from the late philosopher of art Denis Dutton, "a byproduct of evolution, but rather an evolutionary adaptation—an instinctual trait—that helps us survive because it is crucial to our well-being." The arts encode information, stories, and perspectives that allow us to appraise courses of action and the feelings and motives of others in a palatable, low-risk way.
  • "as far as activity in the brain is concerned, there is a faculty of beauty that is not dependent on the modality through which it is conveyed but which can be activated by at least two sources—musical and visual—and probably by other sources as well." Specifically, in this "brain-based theory of beauty," the paper says, that faculty is associated with activity in the medial orbitofrontal cortex.
  • It also enables Kandel—building on the work of Gombrich and the psychoanalyst and art historian Ernst Kris, among others—to compare the painters' rendering of emotion, the unconscious, and the libido with contemporaneous psychological insights from Freud about latent aggression, pleasure and death instincts, and other primal drives.
  • Kandel views the Expressionists' art through the powerful multiple lenses of turn-of-the-century Vienna's cultural mores and psychological insights. But then he refracts them further, through later discoveries in cognitive science. He seeks to reassure those who fear that the empirical and chemical will diminish the paintings' poetic power. "In art, as in science," he writes, "reductionism does not trivialize our perception—of color, light, and perspective—but allows us to see each of these components in a new way. Indeed, artists, particularly modern artists, have intentionally limited the scope and vocabulary of their expression to convey, as Mark Rothko and Ad Reinhardt do, the most essential, even spiritual ideas of their art."
  • The author of a classic textbook on neuroscience, he seems here to have written a layman's cognition textbook wrapped within a work of art history.
  • "our initial response to the most salient features of the paintings of the Austrian Modernists, like our response to a dangerous animal, is automatic. ... The answer to James's question of how an object simply perceived turns into an object emotionally felt, then, is that the portraits are never objects simply perceived. They are more like the dangerous animal at a distance—both perceived and felt."
  • If imaging is key to gauging therapeutic practices, it will be key to neuroaesthetics as well, Kandel predicts—a broad, intense array of "imaging experiments to see what happens with exaggeration, distorted faces, in the human brain and the monkey brain," viewers' responses to "mixed eroticism and aggression," and the like.
  • while the visual-perception literature might be richer at the moment, there's no reason that neuroaesthetics should restrict its emphasis to the purely visual arts at the expense of music, dance, film, and theater.
  • although Kandel considers The Age of Insight to be more a work of intellectual history than of science, the book summarizes centuries of research on perception. And so you'll find, in those hundreds of pages between Kandel's introduction to Klimt's "Judith" and the neurochemical cadenza about the viewer's response to it, dossiers on vision as information processing; the brain's three-dimensional-space mapping and its interpretations of two-dimensional renderings; face recognition; the mirror neurons that enable us to empathize and physically reflect the affect and intentions we see in others; and many related topics. Kandel elsewhere describes the scientific evidence that creativity is nurtured by spells of relaxation, which foster a connection between conscious and unconscious cognition.
  • Zeki's message to art historians, aesthetic philosophers, and others who chafe at that idea is twofold. The more diplomatic pitch is that neuroaesthetics is different, complementary, and not oppositional to other forms of arts scholarship. But "the stick," as he puts it, is that if arts scholars "want to be taken seriously" by neurobiologists, they need to take advantage of the discoveries of the past half-century. If they don't, he says, "it's a bit like the guys who said to Galileo that we'd rather not look through your telescope."
  • Matthews, a co-author of The Bard on the Brain: Understanding the Mind Through the Art of Shakespeare and the Science of Brain Imaging (Dana Press, 2003), seems open to the elucidations that science and the humanities can cast on each other. The neural pathways of our aesthetic responses are "good explanations," he says. But "does one [type of] explanation supersede all the others? I would argue that they don't, because there's a fundamental disconnection still between ... explanations of neural correlates of conscious experience and conscious experience" itself.
  • There are, Matthews says, "certain kinds of problems that are fundamentally interesting to us as a species: What is love? What motivates us to anger?" Writers put their observations on such matters into idiosyncratic stories, psychologists conceive their observations in a more formalized framework, and neuroscientists like Zeki monitor them at the level of functional changes in the brain. All of those approaches to human experience "intersect," Matthews says, "but no one of them is the explanation."
  • "Conscious experience," he says, "is something we cannot even interrogate in ourselves adequately. What we're always trying to do in effect is capture the conscious experience of the last moment. ... As we think about it, we have no way of capturing more than one part of it."
  • Kandel sees art and art history as "parent disciplines" and psychology and brain science as "antidisciplines," to be drawn together in an E.O. Wilson-like synthesis toward "consilience as an attempt to open a discussion between restricted areas of knowledge." Kandel approvingly cites Stephen Jay Gould's wish for "the sciences and humanities to become the greatest of pals ... but to keep their ineluctably different aims and logics separate as they ply their joint projects and learn from each other."
Javier E

Our Cold Civil War Intensifies, Ctd « The Dish - 0 views

  • Taken alone, it would appear both sides share equal blame for the present political paralysis as each shifts to their ideological poles.
  • while both sides may be guilty of running to their respective corners, one is clearly more liable for putting the kibosh on negotiation deal-making.
  • one gets more&nbsp;liberal, the more he or she wants&nbsp;elected officials who compromise.
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  • only the Republicans are carrying out a primary purification to fit their no-compromise dispositions.
  • polarization per se is not the current critical crisis – it’s a refusal to compromise, to reach out from one’s ideological end of the spectrum to meet in the middle (where most of us already are), and demanding that one’s representatives refuse to negotiate to get things done and better the country.
  • A consistently liberal position is fine if you’re prepared to meet the other side halfway – and vice-versa of course. In fact, sometimes a strong position can help facilitate a real deal.
  • it’s the GOP that is the outlier, and long has been.
  • Liberals and conservatives&nbsp;are coming to rely on different worldviews motivated by different interpretations of what “reality” is. The Republican party has clearly decided that the only path open to them is to further embrace the resentment exhibited in rural, displaced white voters – people whose concerns have been unconscionably ignored but who have directed their anger at an entirely inappropriate target. They see Obama as the enemy but they vote for the people who are their real enemies.
  • If you think about it point by point, it becomes even less sensible. The debt? That was a result of Bush’s unfunded wars, irresponsible tax cuts and his corporatist Medicare expansion (which was itself just a subsidy for drug companies). The recession? A logical endpoint&nbsp;of a decades-long abandonment of responsible financial regulation. Immigration? There have been no significant changes to our immigration law since 1986, when Saint Reagan pushed through a bill that provided legal status to many who were undocumented – and the right conveniently proceeded to forget that. Ditto with gun control, since Reagan supported the Brady Bill publicly, and that clearly must be erased from the record.
  • The left, by contrast, did not throw Democrats out of office for supporting the Bush tax cuts. It did not throw Democrats out of office for opposing cap-and-trade legislation, immigration reform, or for stonewalling Obamacare until the very last minute when Scott Brown’s surprise election made inaction untenable. The left complained about these realities but never pretended that the reality was any different than what it was; we had the best we could get and that while Obama has let us down on specific issues, he has been a wholly underappreciated president – and history will very likely vindicate him
runlai_jiang

8 Infinity Facts That Will Blow Your Mind - 0 views

  • Infinity has its own special symbol: ∞. The symbol, sometimes called the lemniscate, was introduced by clergyman and mathematician John Wallis in 1655. The word "lemniscate" comes from the Latin word lemniscus, which means "ribbon," while the word "infinity" comes from the Latin word infinitas, which means "boundless."
  • Of all Zeno's paradoxes, the most famous is his paradox of the Tortoise and Achilles. In the paradox, a tortoise challenges the Greek hero Achilles to a race, providing the tortoise is given a small head start. The tortoise argues he will win the race because as Achilles catches up to him, the tortoise will have gone a bit further, adding to the distance.
  • Pi as an Example of Infinity Pi is a number consisting of an infinite number of digits. Jeffrey Coolidge / Getty Images Another good example of infinity is the number π or pi. Mathematicians use a symbol for pi because it's impossible to write the number down. Pi consists of an infinite number of digits. It's often rounded to 3.14 or even 3.14159, yet no matter how many digits you write, it's impossible to get to the end.
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  • Fractals and Infinity A fractal may be magnified over and over, to infinity, always revealing more detail. PhotoviewPlus / Getty Images A fractal is an abstract mathematical object, used in art and to simulate natural phenomena. Written as a mathematical equation, most fractals are nowhere differentiable. When viewing an image of a fractal, this means you could zoom in and see new detail. In other words, a fractal is infinitely magnifiable.The Koch snowflake is an interesting example of a fractal. The snowflake starts as an equilateral triangle. For each iteration of the fractal:Each line segment is divided into three equal segments.
  • Cosmology and Infinity Even if the universe is finite, it might be one of an infinite number of "bubbles.". Detlev van Ravenswaay / Getty Images Cosmologists study the universe and ponder infinity. Does space go on and on without end? This remains an open question. Even if the physical universe as we know it has a boundary, there is still the multiverse theory to consider. Our universe may be but one in an infinite number of them.
Javier E

GPT-4 has arrived. It will blow ChatGPT out of the water. - The Washington Post - 0 views

  • GPT-4, in contrast, is a state-of-the-art system capable of creating not just words but describing images in response to a person’s simple written commands.
  • When shown a photo of a boxing glove hanging over a wooden seesaw with a ball on one side, for instance, a person can ask what will happen if the glove drops, and GPT-4 will respond that it would hit the seesaw and cause the ball to fly up.
  • an AI program, known as a large language model, that early testers had claimed was remarkably advanced in its ability to reason and learn new things
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  • hose promises have also fueled anxiety over how people will be able to compete for jobs outsourced to eerily refined machines or trust the accuracy of what they see online.
  • Officials with the San Francisco lab said GPT-4’s “multimodal” training across text and images would allow it to escape the chat box and more fully emulate a world of color and imagery, surpassing ChatGPT in its “advanced reasoning capabilities.”
  • A person could upload an image and GPT-4 could caption it for them, describing the objects and scene.
  • AI language models often confidently offer wrong answers because they are designed to spit out cogent phrases, not actual facts. And because they have been trained on internet text and imagery, they have also learned to emulate human biases of race, gender, religion and class.
  • GPT-4 still makes many of the errors of previous versions, including “hallucinating” nonsense, perpetuating social biases and offering bad advice. It also lacks knowledge of events that happened after about September 2021, when its training data was finalized, and “does not learn from its experience,” limiting people’s ability to teach it new things.
  • Microsoft has invested billions of dollars in OpenAI in the hope its technology will become a secret weapon for its workplace software, search engine and other online ambitions. It has marketed the technology as a super-efficient companion that can handle mindless work and free people for creative pursuits, helping one software developer to do the work of an entire team or allowing a mom-and-pop shop to design a professional advertising campaign without outside help.
  • it could lead to business models and creative ventures no one can predict.
  • sparked criticism that the companies are rushing to exploit an untested, unregulated and unpredictable technology that could deceive people, undermine artists’ work and lead to real-world harm.
  • the company held back the feature to better understand potential risks. As one example, she said, the model might be able to look at an image of a big group of people and offer up known information about them, including their identities — a possible facial recognition use case that could be used for mass surveillance.
  • OpenAI researchers wrote, “As GPT-4 and AI systems like it are adopted more widely,” they “will have even greater potential to reinforce entire ideologies, worldviews, truths and untruths, and to cement them or lock them in.”
  • “We can agree as a society broadly on some harms that a model should not contribute to,” such as building a nuclear bomb or generating child sexual abuse material, she said. “But many harms are nuanced and primarily affect marginalized groups,” she added, and those harmful biases, especially across other languages, “cannot be a secondary consideration in performance.”
  • OpenAI said its new model would be able to handle more than 25,000 words of text, a leap forward that could facilitate longer conversations and allow for the searching and analysis of long documents.
  • OpenAI developers said GPT-4 was more likely to provide factual responses and less likely to refuse harmless requests
  • Duolingo, the language learning app, has already used GPT-4 to introduce new features, such as an AI conversation partner and a tool that tells users why an answer was incorrect.
  • The company did not share evaluations around bias that have become increasingly common after pressure from AI ethicists.
  • GPT-4 will have competition in the growing field of multisensory AI. DeepMind, an AI firm owned by Google’s parent company Alphabet, last year released a “generalist” model named Gato that can describe images and play video games. And Google this month released a multimodal system, PaLM-E, that folded AI vision and language expertise into a one-armed robot on wheels: If someone told it to go fetch some chips, for instance, it could comprehend the request, wheel over to a drawer and choose the right bag.
  • The systems, though — as critics and the AI researchers are quick to point out — are merely repeating patterns and associations found in their training data without a clear understanding of what it’s saying or when it’s wrong.
  • GPT-4, the fourth “generative pre-trained transformer” since OpenAI’s first release in 2018, relies on a breakthrough neural-network technique in 2017 known as the transformer that rapidly advanced how AI systems can analyze patterns in human speech and imagery.
  • The systems are “pre-trained” by analyzing trillions of words and images taken from across the internet: news articles, restaurant reviews and message-board arguments; memes, family photos and works of art.
  • Giant supercomputer clusters of graphics processing chips are mapped out their statistical patterns — learning which words tended to follow each other in phrases, for instance — so that the AI can mimic those patterns, automatically crafting long passages of text or detailed images, one word or pixel at a time.
  • In 2019, the company refused to publicly release GPT-2, saying it was so good they were concerned about the “malicious applications” of its use, from automated spam avalanches to mass impersonation and disinformation campaigns.
  • Altman has also marketed OpenAI’s vision with the aura of science fiction come to life. In a blog post last month, he said the company was planning for ways to ensure that “all of humanity” benefits from “artificial general intelligence,” or AGI — an industry term for the still-fantastical idea of an AI superintelligence that is generally as smart as, or smarter than, the humans themselves.
sissij

How Intelligent Are Psychopaths? Study Examines the "Hannibal Lecter Myth" | Big Think - 0 views

  • We tend to think of psychopaths as dangerous, antisocial, lacking in key human emotions like empathy or remorse.
  • finding that whatever qualities they might have, high intelligence is not one of them. In fact, psychopaths were found to be less intelligent than average people.
  • referred by psychologists as the “Hannibal Lecter myth”. But that kind of Hollywoodized psychopath did not sit well with observed facts.&nbsp;
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  • The researchers found that psychopaths scored lower on intelligence tests. A surprising result, according to Boutwell.&nbsp;
  • The researchers hope that their finding will contribute to our understanding psychopathy, currently an untreatable condition.&nbsp;
  • Further research might also change how psychopaths are treated by the criminal justice system.&nbsp;
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    We tends to give labels and stereotypes to a group of people, and the psychopaths is just another group of people that has been incorrectly depicted. The social media plays a big part in this case. The Hollywood creates psychopaths as highly intelligent evil genius to make the characters and storyline more interesting. However, it is far from the actual fact, but the viewers and the general public take this image as a reality. Since people tend to be lazy, they eager to receive information rather than find the information themselves. Due to the exposure effect, the image of psychopaths being evil but highly intelligent becomes the mainstream impression on psychopaths. Correcting the image of psychopaths in our head can help us better understand their behaviors without making unfair judgments. --Sissi (2/9/2017)
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