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Javier E

Do Political Experts Know What They're Talking About? | Wired Science | Wired... - 1 views

  • I often joke that every cable news show should be forced to display a disclaimer, streaming in a loop at the bottom of the screen. The disclaimer would read: “These talking heads have been scientifically proven to not know what they are talking about. Their blather is for entertainment purposes only.” The viewer would then be referred to Tetlock’s most famous research project, which began in 1984.
  • He picked a few hundred political experts – people who made their living “commenting or offering advice on political and economic trends” – and began asking them to make predictions about future events. He had a long list of pertinent questions. Would George Bush be re-elected? Would there be a peaceful end to apartheid in South Africa? Would Quebec secede from Canada? Would the dot-com bubble burst? In each case, the pundits were asked to rate the probability of several possible outcomes. Tetlock then interrogated the pundits about their thought process, so that he could better understand how they made up their minds.
  • Most of Tetlock’s questions had three possible answers; the pundits, on average, selected the right answer less than 33 percent of the time. In other words, a dart-throwing chimp would have beaten the vast majority of professionals. These results are summarized in his excellent Expert Political Judgment.
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  • Some experts displayed a top-down style of reasoning: politics as a deductive art. They started with a big-idea premise about human nature, society, or economics and applied it to the specifics of the case. They tended to reach more confident conclusions about the future. And the positions they reached were easier to classify ideologically: that is the Keynesian prediction and that is the free-market fundamentalist prediction and that is the worst-case environmentalist prediction and that is the best case technology-driven growth prediction etc. Other experts displayed a bottom-up style of reasoning: politics as a much messier inductive art. They reached less confident conclusions and they are more likely to draw on a seemingly contradictory mix of ideas in reaching those conclusions (sometimes from the left, sometimes from the right). We called the big-idea experts “hedgehogs” (they know one big thing) and the more eclectic experts “foxes” (they know many, not so big things).
  • The most consistent predictor of consistently more accurate forecasts was “style of reasoning”: experts with the more eclectic, self-critical, and modest cognitive styles tended to outperform the big-idea people (foxes tended to outperform hedgehogs).
  • Lehrer: Can non-experts do anything to encourage a more effective punditocracy?
  • Tetlock: Yes, non-experts can encourage more accountability in the punditocracy. Pundits are remarkably skillful at appearing to go out on a limb in their claims about the future, without actually going out on one. For instance, they often “predict” continued instability and turmoil in the Middle East (predicting the present) but they virtually never get around to telling you exactly what would have to happen to disconfirm their expectations. They are essentially impossible to pin down. If pundits felt that their public credibility hinged on participating in level playing field forecasting exercises in which they must pit their wits against an extremely difficult-to-predict world, I suspect they would be learn, quite quickly, to be more flexible and foxlike in their policy pronouncements.
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anonymous

Businesses May Benefit From Sharing Covid Testing Resources, Study Suggests - The New Y... - 0 views

  • Why It Pays to Think Outside the Box on Coronavirus Tests
  • Universities and other institutions looking to protect themselves from Covid-19 may benefit from sharing their testing resources with the wider community, a new study suggests.
  • Last year, when the National Football League decided to stage its season in the midst of the coronavirus pandemic, it went all-in on testing
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  • Between Aug. 1 and the Super Bowl in early February, the N.F.L. administered almost one million tests to players and staff.
  • Many other organizations have sought safety in mass testing.
  • When the coronavirus closed down the country last spring, many colleges and universities sought her advice on how to safely reopen.
  • Now, a new analysis suggests that schools, businesses and other organizations that want to keep themselves safe should think beyond strictly themselves.
  • By dedicating a substantial proportion of their tests to people in the surrounding community, institutions could reduce the number of Covid-19 cases among their members by as much as 25 percent, researchers report in a new paper, which has not yet been published in a scientific journal.
  • “It’s natural in an outbreak for people to become self-serving, self-focused,”
  • “If you’ve been in enough outbreaks you just understand that testing in a box doesn’t makes sense. These things are communicable, and they’re coming in from the community.”
  • “really profound implications, especially if others can replicate it,” said David O’Connor
  • “We want to start using more sophisticated modeling and probably economic theory to inform what an optimal testing program would look like.”
  • Dr. Sabeti is an epidemic veteran, part of teams that responded to an Ebola outbreak in West Africa in 2014 and a mumps outbreak in the Boston area a few years later.
  • The University of Illinois is testing its students, faculty and staff twice a week and has conducted more than 1.6 million tests since July.
  • At a time when testing resources were in short supply, many of these institutions were proposing intensive, expensive testing regimens focused entirely on their own members
  • ‘You’re in a drought in a place with a lot of forest fires, and you have a shortage of fire alarms,’” she recalled. “‘And if you run out and buy every fire alarm and install it in your own house, you’ll be able to pick up a fire the moment it hits your house, but at that point it’s burning to the ground.’”
  • ‘You’re in a drought in a place with a lot of forest fires, and you have a shortage of fire alarms,’” she recalled. “‘And if you run out and buy every fire alarm and install it in your own house, you’ll be able to pick up a fire the moment it hits your house, but at that point it’s burning to the ground.’”
  • Using real-world data from C.M.U., the researchers created a baseline scenario in which 1 percent of people at the school, and 6 percent of those in the surrounding county, were infected by the coronavirus, and the university was testing 12 percent of its members every day.
  • Under these conditions, the researchers found, if the university used all of its tests on its own members, it would have roughly 200 Covid-19 cases after 40 days
  • The researchers then tweaked the model’s parameters in various ways: What if the virus were more prevalent? What if students and staff did not report all their contacts? What if they were better about mask-wearing and social distancing? What if the university deployed more tests, or fewer?
  • Unsurprisingly, the more testing the university did, and the more information it had about its members’ close contacts, the fewer Covid-19 cases there were
  • But in virtually every scenario, sharing at least some tests with the broader community led to fewer cases than hoarding them.
  • Some universities are beginning to adopt this outlook.
  • “A virus does not respect geographic boundaries,” Dr. Pollock said. “It is ludicrous to think that you can get control of an acute infectious respiratory disease like Covid-19, in a city like Davis that hosts a very large university, without coordinated public health measures that connect both the university and the community.”
  • There are barriers to the more altruistic approach, including internal political pressure to use testing resources in house and concerns about legal liability.
  • the researchers hope that their model convinces at least some institutions to rethink their strategy, not only during this epidemic but also in future ones.
  • “An outbreak is an opportunity to buy a lot of community good will, or to burn a lot of community good will,” Dr. Sabeti said. “We could have spent an entire year building up that relationship between organizations and institutions and their communities. And we would have done all that hard work together, as opposed to everybody turning inward.”
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    "'You're in a drought in a place with a lot of forest fires, and you have a shortage of fire alarms,'" she recalled. "'And if you run out and buy every fire alarm and install it in your own house, you'll be able to pick up a fire the moment it hits your house, but at that point it's burning to the ground.'"
ilanaprincilus06

A Single Fire Killed At Least 10% Of The World's Giant Sequoias, Study Says : NPR - 2 views

  • At least a tenth of the world's mature giant sequoia trees were destroyed by a single California wildfire that tore through the southern Sierra Nevada last year,
  • a copy of the report that describes catastrophic destruction from the Castle Fire, which charred 273 square miles (707 square km) of timber in Sequoia National Park.
  • Researchers used satellite imagery and modeling from previous fires to determine that between 7,500 and 10,000 of the towering species perished in the fire. That equates to 10% to 14% of the world's mature giant sequoia population, the newspaper said.
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  • These trees have lived for thousands of years. They've survived dozens of wildfires already,"
  • The consequences of losing large numbers of giant sequoias could be felt for decades, forest managers said.
  • Redwood and sequoia forests are among the world's most efficient at removing and storing carbon dioxide in the atmosphere.
  • "I have a vain hope that once we get out on the ground the situation won't be as bad, but that's hope — that's not science," she said.
  • The newspaper said the extent of the damage to one of the world's most treasured trees is noteworthy because the sequoias themselves are incredibly well adapted to fire.
  • The old-growth trees — some of which are more than 2,000 years old and 250 feet (76 meters) tall — require fire to burst their pine cones and reproduce.
  • Brigham estimates that the park will need to burn around 30 times that number to get the forest back to a healthy state.
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    Wildfires destroy forests all the time, what surprised me the most about this article was the fact that between 7,500 and 10,000 of the towering species perished in the fire that is just mind-blowing to me.
tongoscar

Australia fires: 8 things everyone should know about the bushfire disaster - Vox - 0 views

  • Since September, at least 24 million acres of Australia have burned in one of the country’s worst fire seasons on record.
  • The severity of the widespread fires is a symptom of global warming, and the blazes may even contribute to it — at least in the short term. Australia’s bushfires have released 400 megatons of carbon dioxide into the atmosphere, according to the European Union’s Copernicus Atmosphere Monitoring Service.
  • Before the fires ignited, Australia was already enduring its hottest and driest year on record. It’s summertime in the southern hemisphere, and the heat keeps rising.
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  • This summer’s high temperatures and subsequent fires are linked to climate change, which drives long-term warming trends and makes these kinds of events more severe.
  • Australia is one of the great biodiversity hotspots in the world. The island continent was isolated from the rest of the world for millions of years, allowing evolution to take strange new paths, and until fairly recently, with little human influence.Around 244 species of mammals are found only in Australia. Before the fires, its great diversity of life was already threatened due to invasive species, habitat destruction, and climate change, according to Australia’s science research agency, CSIRO. Now, ecologists are fearing severe ecological consequences from so much land being burnt at once.
katherineharron

Australia fires: Smoke will make 'full circuit' around the world, NASA scientists warn ... - 0 views

  • Smoke from fires in Australia is expected to make at least one "full circuit" around the globe and return to the skies over the country, scientists from NASA have warned.
  • Studying smoke plumes from late December, the space agency said that the smoke had traveled "halfway across Earth" and affected air quality in other countries. Australia is being ravaged by the worst wildfires seen in decades, with large swaths of the country devastated since the fire season began in late July.
  • At least 28 people have died nationwide, and in the state of New South Wales (NSW) alone, more than 3,000 homes have been destroyed or damaged. State and federal authorities are struggling to contain the massive blazes.
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  • By January 8, the smoke had traveled "halfway around Earth," NASA said, crossing South America to cause hazy skies and creating colorful sunrises and sunsets.
Javier E

Atul Gawande: Failure and Rescue : The New Yorker - 0 views

  • the critical skills of the best surgeons I saw involved the ability to handle complexity and uncertainty. They had developed judgment, mastery of teamwork, and willingness to accept responsibility for the consequences of their choices. In this respect, I realized, surgery turns out to be no different than a life in teaching, public service, business, or almost anything you may decide to pursue. We all face complexity and uncertainty no matter where our path takes us. That means we all face the risk of failure. So along the way, we all are forced to develop these critical capacities—of judgment, teamwork, and acceptance of responsibility.
  • people admonish us: take risks; be willing to fail. But this has always puzzled me. Do you want a surgeon whose motto is “I like taking risks”? We do in fact want people to take risks, to strive for difficult goals even when the possibility of failure looms. Progress cannot happen otherwise. But how they do it is what seems to matter. The key to reducing death after surgery was the introduction of ways to reduce the risk of things going wrong—through specialization, better planning, and technology.
  • there continue to be huge differences between hospitals in the outcomes of their care. Some places still have far higher death rates than others. And an interesting line of research has opened up asking why.
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  • I thought that the best places simply did a better job at controlling and minimizing risks—that they did a better job of preventing things from going wrong. But, to my surprise, they didn’t. Their complication rates after surgery were almost the same as others. Instead, what they proved to be really great at was rescuing people when they had a complication, preventing failures from becoming a catastrophe.
  • this is what distinguished the great from the mediocre. They didn’t fail less. They rescued more.
  • This may in fact be the real story of human and societal improvement. We talk a lot about “risk management”—a nice hygienic phrase. But in the end, risk is necessary. Things can and will go wrong. Yet some have a better capacity to prepare for the possibility, to limit the damage, and to sometimes even retrieve success from failure.
  • When things go wrong, there seem to be three main pitfalls to avoid, three ways to fail to rescue. You could choose a wrong plan, an inadequate plan, or no plan at all. Say you’re cooking and you inadvertently set a grease pan on fire. Throwing gasoline on the fire would be a completely wrong plan. Trying to blow the fire out would be inadequate. And ignoring it—“Fire? What fire?”—would be no plan at all.
  • All policies court failure—our war in Iraq, for instance, or the effort to stimulate our struggling economy. But when you refuse to even acknowledge that things aren’t going as expected, failure can become a humanitarian disaster. The sooner you’re able to see clearly that your best hopes and intentions have gone awry, the better. You have more room to pivot and adjust. You have more of a chance to rescue.
  • But recognizing that your expectations are proving wrong—accepting that you need a new plan—is commonly the hardest thing to do. We have this problem called confidence. To take a risk, you must have confidence in yourself
  • Yet you cannot blind yourself to failure, either. Indeed, you must prepare for it. For, strangely enough, only then is success possible.
  • So you will take risks, and you will have failures. But it’s what happens afterward that is defining. A failure often does not have to be a failure at all. However, you have to be ready for it—will you admit when things go wrong? Will you take steps to set them right?—because the difference between triumph and defeat, you’ll find, isn’t about willingness to take risks. It’s about mastery of rescue.
runlai_jiang

Las Vegas shooting: NRA urges new rules for gun 'bump-stocks' - BBC News - 0 views

  • The National Rifle Association has called for "additional regulations" on bump-stocks, a rapid fire device used by the Las Vegas massacre gunman.
  • They criticised politicians who are calling for gun control, writing that "banning guns from law-abiding Americans based on the criminal act of a madman will do nothing to prevent future attacks".
  • Republican congressional leadership may try to clamp down on the proceedings, but there's a chance other proposals -like limits on magazine capacity, military-style rifle features and new background check requirements - could come up for consideration.
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  • A bill to ban bump-stocks was submitted to the US Senate on Wednesday by California Democrat Dianne Feinstein.
  • He said there was growing bipartisan consensus and that his office had been "flooded" with calls from other lawmakers interested in the bill.
  • "I think we are on the verge of a breakthrough when it comes to sensible gun policy," he told reporters.
  • Bump-fire stocks, also called bump-stocks and slide-fire adapters, allow semi-automatic rifles to fire at a high rate, similar to a machine gun.But they can be obtained without the extensive background checks required of automatic weapons.
  • she added that she did not understand why anyone needed to own an assault rifle.
  • There is some support among survivors for banning bump-stocks but there is also a realisation that doing so does not amount to serious gun control.And all the while the killing continues. Fifty-nine people died here on Sunday.By Thursday afternoon at least 87 more people had been shot and killed across the US, according to the Gun Violence Archive. That's a Las Vegas massacre every three days.
  • Bump-stocks typically cost less than $200 (£150) and allow nearly 100 high-velocity bullets to be fired in just seven seconds, according to one company advert.
markfrankel18

Who's Responsibile for Worker Safety Abroad? - Room for Debate - NYTimes.com - 0 views

  • Recent factory fires in Pakistan and Bangladesh have killed more than 400 people. Yet, the stricken garment manufacturers had apparently passed inspection — despite bars on windows and locked exits — and been deemed safe. These factories supply clothing to — and are in business because of — American companies like Wal-Mart and Sears. So where does the responsibility lie in improving worker safety, and what can be done about it?
anonymous

Creator of 'All Rise' on CBS Is Fired After Writers' Complaints - The New York Times - 0 views

  • Creator of ‘All Rise’ on CBS Is Fired After Writers’ Complaints
  • Greg Spottiswood had faced numerous complaints over the way issues of race and gender were addressed on the show, a rare prime-time CBS drama with a Black woman as a protagonist.
  • Warner Bros. Television has fired the showrunner and creator of the CBS show “All Rise,” Greg Spottiswood, after a second investigation into allegations regarding how he dealt with the show’s writers, including in conversations involving race.
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  • “We remain committed, at all times, to providing a safe and inclusive working environment on our productions and for all employees.”
  • Mr. Spottiswood had previously been investigated for his treatment of the writing staff during the first season of the CBS procedural
  • “All Rise” has been celebrated by CBS after its prime-time lineup had been criticized for its lack of diversity
  • Five of the original seven members of the “All Rise” writing staff left the show because of his treatment of them and the way the show, under his direction, depicted race and gender,
  • “We had to do so much behind the scenes to keep these scripts from being racist and offensive,”
  • Mr. Spottiswood said he was aware of the problems with his leadership and pledged to do better.
  • The studio kept Mr. Spottiswood, who is white, in charge of the show, and provided him a corporate coach to advise him.
  • claiming he was interested only in having Mr. Nayar appear at public events with the title of executive producer but did not give him the duties to match that position.
  • The most recent investigation was again focused on statements Mr. Spottiswood was said to have made in the writers’ room.
Javier E

Whistleblower: Twitter misled investors, FTC and underplayed spam issues - Washington Post - 0 views

  • Twitter executives deceived federal regulators and the company’s own board of directors about “extreme, egregious deficiencies” in its defenses against hackers, as well as its meager efforts to fight spam, according to an explosive whistleblower complaint from its former security chief.
  • The complaint from former head of security Peiter Zatko, a widely admired hacker known as “Mudge,” depicts Twitter as a chaotic and rudderless company beset by infighting, unable to properly protect its 238 million daily users including government agencies, heads of state and other influential public figures.
  • Among the most serious accusations in the complaint, a copy of which was obtained by The Washington Post, is that Twitter violated the terms of an 11-year-old settlement with the Federal Trade Commission by falsely claiming that it had a solid security plan. Zatko’s complaint alleges he had warned colleagues that half the company’s servers were running out-of-date and vulnerable software and that executives withheld dire facts about the number of breaches and lack of protection for user data, instead presenting directors with rosy charts measuring unimportant changes.
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  • The complaint — filed last month with the Securities and Exchange Commission and the Department of Justice, as well as the FTC — says thousands of employees still had wide-ranging and poorly tracked internal access to core company software, a situation that for years had led to embarrassing hacks, including the commandeering of accounts held by such high-profile users as Elon Musk and former presidents Barack Obama and Donald Trump.
  • the whistleblower document alleges the company prioritized user growth over reducing spam, though unwanted content made the user experience worse. Executives stood to win individual bonuses of as much as $10 million tied to increases in daily users, the complaint asserts, and nothing explicitly for cutting spam.
  • Chief executive Parag Agrawal was “lying” when he tweeted in May that the company was “strongly incentivized to detect and remove as much spam as we possibly can,” the complaint alleges.
  • Zatko described his decision to go public as an extension of his previous work exposing flaws in specific pieces of software and broader systemic failings in cybersecurity. He was hired at Twitter by former CEO Jack Dorsey in late 2020 after a major hack of the company’s systems.
  • “I felt ethically bound. This is not a light step to take,” said Zatko, who was fired by Agrawal in January. He declined to discuss what happened at Twitter, except to stand by the formal complaint. Under SEC whistleblower rules, he is entitled to legal protection against retaliation, as well as potential monetary rewards.
  • “Security and privacy have long been top companywide priorities at Twitter,” said Twitter spokeswoman Rebecca Hahn. She said that Zatko’s allegations appeared to be “riddled with inaccuracies” and that Zatko “now appears to be opportunistically seeking to inflict harm on Twitter, its customers, and its shareholders.” Hahn said that Twitter fired Zatko after 15 months “for poor performance and leadership.” Attorneys for Zatko confirmed he was fired but denied it was for performance or leadership.
  • A person familiar with Zatko’s tenure said the company investigated Zatko’s security claims during his time there and concluded they were sensationalistic and without merit. Four people familiar with Twitter’s efforts to fight spam said the company deploys extensive manual and automated tools to both measure the extent of spam across the service and reduce it.
  • Overall, Zatko wrote in a February analysis for the company attached as an exhibit to the SEC complaint, “Twitter is grossly negligent in several areas of information security. If these problems are not corrected, regulators, media and users of the platform will be shocked when they inevitably learn about Twitter’s severe lack of security basics.”
  • Zatko’s complaint says strong security should have been much more important to Twitter, which holds vast amounts of sensitive personal data about users. Twitter has the email addresses and phone numbers of many public figures, as well as dissidents who communicate over the service at great personal risk.
  • This month, an ex-Twitter employee was convicted of using his position at the company to spy on Saudi dissidents and government critics, passing their information to a close aide of Crown Prince Mohammed bin Salman in exchange for cash and gifts.
  • Zatko’s complaint says he believed the Indian government had forced Twitter to put one of its agents on the payroll, with access to user data at a time of intense protests in the country. The complaint said supporting information for that claim has gone to the National Security Division of the Justice Department and the Senate Select Committee on Intelligence. Another person familiar with the matter agreed that the employee was probably an agent.
  • “Take a tech platform that collects massive amounts of user data, combine it with what appears to be an incredibly weak security infrastructure and infuse it with foreign state actors with an agenda, and you’ve got a recipe for disaster,” Charles E. Grassley (R-Iowa), the top Republican on the Senate Judiciary Committee,
  • Many government leaders and other trusted voices use Twitter to spread important messages quickly, so a hijacked account could drive panic or violence. In 2013, a captured Associated Press handle falsely tweeted about explosions at the White House, sending the Dow Jones industrial average briefly plunging more than 140 points.
  • After a teenager managed to hijack the verified accounts of Obama, then-candidate Joe Biden, Musk and others in 2020, Twitter’s chief executive at the time, Jack Dorsey, asked Zatko to join him, saying that he could help the world by fixing Twitter’s security and improving the public conversation, Zatko asserts in the complaint.
  • In 1998, Zatko had testified to Congress that the internet was so fragile that he and others could take it down with a half-hour of concentrated effort. He later served as the head of cyber grants at the Defense Advanced Research Projects Agency, the Pentagon innovation unit that had backed the internet’s invention.
  • But at Twitter Zatko encountered problems more widespread than he realized and leadership that didn’t act on his concerns, according to the complaint.
  • Twitter’s difficulties with weak security stretches back more than a decade before Zatko’s arrival at the company in November 2020. In a pair of 2009 incidents, hackers gained administrative control of the social network, allowing them to reset passwords and access user data. In the first, beginning around January of that year, hackers sent tweets from the accounts of high-profile users, including Fox News and Obama.
  • Several months later, a hacker was able to guess an employee’s administrative password after gaining access to similar passwords in their personal email account. That hacker was able to reset at least one user’s password and obtain private information about any Twitter user.
  • Twitter continued to suffer high-profile hacks and security violations, including in 2017, when a contract worker briefly took over Trump’s account, and in the 2020 hack, in which a Florida teen tricked Twitter employees and won access to verified accounts. Twitter then said it put additional safeguards in place.
  • This year, the Justice Department accused Twitter of asking users for their phone numbers in the name of increased security, then using the numbers for marketing. Twitter agreed to pay a $150 million fine for allegedly breaking the 2011 order, which barred the company from making misrepresentations about the security of personal data.
  • After Zatko joined the company, he found it had made little progress since the 2011 settlement, the complaint says. The complaint alleges that he was able to reduce the backlog of safety cases, including harassment and threats, from 1 million to 200,000, add staff and push to measure results.
  • But Zatko saw major gaps in what the company was doing to satisfy its obligations to the FTC, according to the complaint. In Zatko’s interpretation, according to the complaint, the 2011 order required Twitter to implement a Software Development Life Cycle program, a standard process for making sure new code is free of dangerous bugs. The complaint alleges that other employees had been telling the board and the FTC that they were making progress in rolling out that program to Twitter’s systems. But Zatko alleges that he discovered that it had been sent to only a tenth of the company’s projects, and even then treated as optional.
  • “If all of that is true, I don’t think there’s any doubt that there are order violations,” Vladeck, who is now a Georgetown Law professor, said in an interview. “It is possible that the kinds of problems that Twitter faced eleven years ago are still running through the company.”
  • The complaint also alleges that Zatko warned the board early in his tenure that overlapping outages in the company’s data centers could leave it unable to correctly restart its servers. That could have left the service down for months, or even have caused all of its data to be lost. That came close to happening in 2021, when an “impending catastrophic” crisis threatened the platform’s survival before engineers were able to save the day, the complaint says, without providing further details.
  • One current and one former employee recalled that incident, when failures at two Twitter data centers drove concerns that the service could have collapsed for an extended period. “I wondered if the company would exist in a few days,” one of them said.
  • The current and former employees also agreed with the complaint’s assertion that past reports to various privacy regulators were “misleading at best.”
  • For example, they said the company implied that it had destroyed all data on users who asked, but the material had spread so widely inside Twitter’s networks, it was impossible to know for sure
  • As the head of security, Zatko says he also was in charge of a division that investigated users’ complaints about accounts, which meant that he oversaw the removal of some bots, according to the complaint. Spam bots — computer programs that tweet automatically — have long vexed Twitter. Unlike its social media counterparts, Twitter allows users to program bots to be used on its service: For example, the Twitter account @big_ben_clock is programmed to tweet “Bong Bong Bong” every hour in time with Big Ben in London. Twitter also allows people to create accounts without using their real identities, making it harder for the company to distinguish between authentic, duplicate and automated accounts.
  • In the complaint, Zatko alleges he could not get a straight answer when he sought what he viewed as an important data point: the prevalence of spam and bots across all of Twitter, not just among monetizable users.
  • Zatko cites a “sensitive source” who said Twitter was afraid to determine that number because it “would harm the image and valuation of the company.” He says the company’s tools for detecting spam are far less robust than implied in various statements.
  • “Agrawal’s Tweets and Twitter’s previous blog posts misleadingly imply that Twitter employs proactive, sophisticated systems to measure and block spam bots,” the complaint says. “The reality: mostly outdated, unmonitored, simple scripts plus overworked, inefficient, understaffed, and reactive human teams.”
  • The four people familiar with Twitter’s spam and bot efforts said the engineering and integrity teams run software that samples thousands of tweets per day, and 100 accounts are sampled manually.
  • Some employees charged with executing the fight agreed that they had been short of staff. One said top executives showed “apathy” toward the issue.
  • Zatko’s complaint likewise depicts leadership dysfunction, starting with the CEO. Dorsey was largely absent during the pandemic, which made it hard for Zatko to get rulings on who should be in charge of what in areas of overlap and easier for rival executives to avoid collaborating, three current and former employees said.
  • For example, Zatko would encounter disinformation as part of his mandate to handle complaints, according to the complaint. To that end, he commissioned an outside report that found one of the disinformation teams had unfilled positions, yawning language deficiencies, and a lack of technical tools or the engineers to craft them. The authors said Twitter had no effective means of dealing with consistent spreaders of falsehoods.
  • Dorsey made little effort to integrate Zatko at the company, according to the three employees as well as two others familiar with the process who spoke on the condition of anonymity to describe sensitive dynamics. In 12 months, Zatko could manage only six one-on-one calls, all less than 30 minutes, with his direct boss Dorsey, who also served as CEO of payments company Square, now known as Block, according to the complaint. Zatko allegedly did almost all of the talking, and Dorsey said perhaps 50 words in the entire year to him. “A couple dozen text messages” rounded out their electronic communication, the complaint alleges.
  • Faced with such inertia, Zatko asserts that he was unable to solve some of the most serious issues, according to the complaint.
  • Some 30 percent of company laptops blocked automatic software updates carrying security fixes, and thousands of laptops had complete copies of Twitter’s source code, making them a rich target for hackers, it alleges.
  • A successful hacker takeover of one of those machines would have been able to sabotage the product with relative ease, because the engineers pushed out changes without being forced to test them first in a simulated environment, current and former employees said.
  • “It’s near-incredible that for something of that scale there would not be a development test environment separate from production and there would not be a more controlled source-code management process,” said Tony Sager, former chief operating officer at the cyberdefense wing of the National Security Agency, the Information Assurance divisio
  • Sager is currently senior vice president at the nonprofit Center for Internet Security, where he leads a consensus effort to establish best security practices.
  • Zatko stopped the material from being presented at the Dec. 9, 2021 meeting, the complaint said. But over his continued objections, Agrawal let it go to the board’s smaller Risk Committee a week later.
  • “A best practice is that you should only be authorized to see and access what you need to do your job, and nothing else,” said former U.S. chief information security officer Gregory Touhill. “If half the company has access to and can make configuration changes to the production environment, that exposes the company and its customers to significant risk.”
  • The complaint says Dorsey never encouraged anyone to mislead the board about the shortcomings, but that others deliberately left out bad news.
  • The complaint says that about half of Twitter’s roughly 7,000 full-time employees had wide access to the company’s internal software and that access was not closely monitored, giving them the ability to tap into sensitive data and alter how the service worked. Three current and former employees agreed that these were issues.
  • An unnamed executive had prepared a presentation for the new CEO’s first full board meeting, according to the complaint. Zatko’s complaint calls the presentation deeply misleading.
  • The presentation showed that 92 percent of employee computers had security software installed — without mentioning that those installations determined that a third of the machines were insecure, according to the complaint.
  • Another graphic implied a downward trend in the number of people with overly broad access, based on the small subset of people who had access to the highest administrative powers, known internally as “God mode.” That number was in the hundreds. But the number of people with broad access to core systems, which Zatko had called out as a big problem after joining, had actually grown slightly and remained in the thousands.
  • The presentation included only a subset of serious intrusions or other security incidents, from a total Zatko estimated as one per week, and it said that the uncontrolled internal access to core systems was responsible for just 7 percent of incidents, when Zatko calculated the real proportion as 60 percent.
  • When Dorsey left in November 2021, a difficult situation worsened under Agrawal, who had been responsible for security decisions as chief technology officer before Zatko’s hiring, the complaint says.
  • Agrawal didn’t respond to requests for comment. In an email to employees after publication of this article, obtained by The Post, he said that privacy and security continues to be a top priority for the company, and he added that the narrative is “riddled with inconsistences” and “presented without important context.”
  • On Jan. 4, Zatko reported internally that the Risk Committee meeting might have been fraudulent, which triggered an Audit Committee investigation.
  • Agarwal fired him two weeks later. But Zatko complied with the company’s request to spell out his concerns in writing, even without access to his work email and documents, according to the complaint.
  • Since Zatko’s departure, Twitter has plunged further into chaos with Musk’s takeover, which the two parties agreed to in May. The stock price has fallen, many employees have quit, and Agrawal has dismissed executives and frozen big projects.
  • Zatko said he hoped that by bringing new scrutiny and accountability, he could improve the company from the outside.
  • “I still believe that this is a tremendous platform, and there is huge value and huge risk, and I hope that looking back at this, the world will be a better place, in part because of this.”
nataliedepaulo1

Beating Alzheimer's With Brain Waves - The Atlantic - 0 views

  • These waves are classified by how frequently the neurons fire in a single second. If they fire one to four times, that’s a delta wave, which occurs during deep sleep. If they fire 12 to 30 times, that’s a beta wave, which is typical of normal wakefulness. And if they do so 30 to 90 times, that’s a gamma wave, which has been linked to higher mental abilities, like memory, attention, and perception. It’s no surprise, then, that scientists have seen disrupted gamma waves in many types of brain disorders, including injuries, schizophrenia, and Alzheimer’s disease
  • This is still preliminary work, but it heralds a completely new approach to dealing with Alzheimer’s—changing neural activity, rather than delivering drugs or chemicals. “It’s so different from what people have tried, but we are very excited about the possibility of bringing this to human testing,” says Li-Huei Tsai, an MIT researcher who led the study.
bennetttony

21 workers fired for taking part in 'Day Without Immigrants' protest - 0 views

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    LEXINGTON COUNTY, South Carolina - Twenty one people were fired from a South Carolina company after taking part in the Day Without Immigrants Protest. The movement closed restaurants and shops across the country to show the contributions immigrants have on the American workforce.
bennetttony

Senior Trump appointee fired after critical comments - 0 views

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    WASHINGTON -- A senior Trump administration official was fired following criticism in a private speech of President Donald Trump's policies and his inner circle of advisers. Craig Deare, whom Trump appointed a month ago to head the National Security Council's Western Hemisphere division, was on Friday escorted out of the Executive Office Building, where he worked in Washington.
dicindioha

Why coal-fired power handouts would be an attack on climate and common sense | Environm... - 0 views

  • The coal industry knows that to stop runaway climate change all coal-powered generators need to close Australia joined 174 countries and the European Union in 2015, signing the Paris agreement. In doing so, Australia agreed to do its part in keeping the global temperature rise “well below” 2C.
  • According to data from the Office of the Chief Economist, the demand for coal-generated electricity has dropped by more than 15% in the past eight years.
  • Coal is now the most expensive form of new power. According to Bloomberg New Energy Finance, the cost of energy from a new coal power plant would be $134-$203/MWh. That’s more expensive than wind, solar or highly efficient combined-cycle gas (costing $61-$118/MWh, $78-$140/MWh and $74-$90/MWh, respectively).
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  • The only people who still think we need the old-fashioned sort of “baseload power” that coal provides – power that is always running regardless of whether you need it – are those in the coal industry.
    • dicindioha
       
      This claim seems a bit extreme, saying that the only people still interested in coal are in the coal industry. It might be true, but I also feel as if some people do not think of where their power source comes from.
  • In the short term, that can be gas. But, in the longer term, to stop runaway climate change, that service will need to be supplied by renewable sources such as battery storage, hydro, solar thermal with storage or geothermal.
  • “As the world’s largest coal exporter, we have a vested interest in showing that we can provide both lower emissions and reliable baseload power with state-of-the-art, clean, coal-fired technology.”
  •  
    This article is really interesting because I think it goes to show that there is still some side of the global warming/climate change argument that is making progress. As we learned today, it is important to walk that middle line between over-skepticism and gullibility. Here people recognize that coal emissions are bad, and countries are taking a stand to try and lower that. It does make me wonder though what the future with coal holds, and if one day, we really will resort to renewable energy. It seems increasingly important. One more interesting thing I found was the use of the graphs to support the information, for graphs used to seem to me something people trust, but now I realize we have survival instincts associated even with data, and I wonder if some people would remark this as "fake news."
Javier E

Learning How Little We Know About the Brain - NYTimes.com - 0 views

  • So many large and small questions remain unanswered. How is information encoded and transferred from cell to cell or from network to network of cells?
  • Science found a genetic code but there is no brain-wide neural code; no electrical or chemical alphabet exists that can be recombined to say “red” or “fear” or “wink” or “run.” And no one knows whether information is encoded differently in various parts of the brain.
  • Single neurons, he said, are fairly well understood, as are small circuits of neurons.The question now on his mind, and that of many neuroscientists, is how larger groups, thousands of neurons, work together — whether to produce an action, like reaching for a cup, or to perceive something, like a flower.
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  • A decade ago, he moved from Brandeis to Columbia, which now has one of the biggest groups of theoretical neuroscientists in the world, he says, and which has a new university-wide focus on integrating brain science with other disciplines.
  • a “pioneer of computational neuroscience.” Mr. Abbott brought the mathematical skills of a physicist to the field, but he is able to plunge right into the difficulties of dealing with actual brain experiments
  • the goal is to discover the physiological mechanism in the data.
  • For example, he asks why does one pattern of neurons firing “make you jump off the couch and run out the door and others make you just sit there and do nothing?” It could be, Dr. Abbott says, that simultaneous firing of all the neurons causes you to take action. Or it could be that it is the number of neurons firing that prompts an action.
  • “We’ve looked at the nervous system from the two ends in,” Dr. Abbott said, meaning sensations that flow into the brain and actions that are initiated there. “Somewhere in the middle is really intelligence, right? That’s where the action is.”
  • In the brain, somehow, stored memories and desires like hunger or thirst are added to information about the world, and actions are the result. This is the case for all sorts of animals, not just humans. It is thinking, at the most basic level.
kaylynfreeman

"Immune to Evidence": How Dangerous Coronavirus Conspiracies Spread - ProPublica - 0 views

  • Conspiratorial videos and websites about COVID-19 are going viral. Here’s how one of the authors of “The Conspiracy Theory Handbook” says you can fight back. One big takeaway: Focus your efforts on people who can hear evidence and think rationally.
  • Conspiracy theories related to the COVID-19 pandemic seem to be proliferating, and some may even be taking root. So I asked Lewandowsky to share how he identifies and understands them, and what we can do to sort through the confusion. The interview has been condensed for clarity and length.
  • A conspiracy theory, on the other hand, is discussed at length on the internet by people who are not bona fide journalists or government officials or whistleblowers in an organization or investigative committees of regulators. They’re completely independent sources, individuals who self-nominate and put themselves forward as being in possession of the truth. In principle, that could be true. But then if you look at the way these people think and talk and communicate, you discover their cognition is different from what I would call conventional cognition.
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  • Some people find comfort in resorting to a conspiracy theory whenever they have a sense of a loss of control or they’re confronted with a major adverse event that no one has control over. So every time there’s a mass shooting in the U.S., I can guarantee you ahead of time that there will be a conspiracy theory about it.
cvanderloo

NASA fires SLS moon rocket in major test, but engines shut down early - 0 views

  • the test in Mississippi was cut short after a malfunction caused an automatic abort.
  • "We did get an MCF on engine four," a control room member said less than a minute into the test fire, using an initialism that stands for "major component malfunction."
  • The test was meant to last eight minutes – the full duration needed for the booster during its Artemis program liftoff – but only ran less than two minutes.
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  • An exact plan moving forward, which could mean a second test and delay before transport to Florida, had not yet been released by Saturday evening.
  • NASA said the RS-25 engines have been upgraded and refurbished since their last missions and the agency has placed an order with Aerojet Rocketdyne, recently acquired by Northrop Grumman, for 24 brand new versions.
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.
  • Overall I found it alarming how many of the letters sound as if they were written from Stalinist Russia or Maoist China.
  • 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.
  • 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
  • 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.
  • 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 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.”
  • 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 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.
tongoscar

A Pattern Recognition Theory of Mind | Praxis - 0 views

  • the pace of improvement in technology would become a runaway phenomenon that would transform all aspects of human civilization.
  • the structure and functioning of the human brain is actually quite simple, a basic unit of cognition repeated millions of times. Therefore, creating an artificial brain will not require simulating the human brain at every level of detail. It will only require reverse engineering this basic repeating unit.
  • our memories are organized in discrete segments. If you try to start mid-segment, you’ll struggle for a bit until your sequential memory kicks in.
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  • your memories are sequential, like symbols on a ticker tape. They are designed to be read in a certain direction and in order.
  • your memories are nested. Every action and thought is made up of smaller actions and thoughts.
  • the cortical column, a basic structure that is repeated throughout the neocortex. Each of the approximately 500,000 cortical columns is about two millimeters high and a half millimeter wide, and contains about 60,000 neurons (for a total of about 30 billion neurons in the neocortex).
  • The human brain has evolved to recognize patterns, perhaps more than any other single function. Our brain is weak at processing logic, remembering facts, and making calculations, but pattern recognition is its deep core capability.
  • The neocortex is an elaborately folded sheath of tissue covering the whole top and front of the brain, making up nearly 80% of its weight.
  • The basic structure and functioning of the human brain is hierarchical. This may not seem intuitive at first. It sounds like how a computer works.
  • For our purposes, the most important thing to understand about the neocortex is that it has an extremely uniform structure.
  • Mountcastle also believed there must be smaller sub-units, but that couldn’t be confirmed until years later. These “mini-columns” are so tightly interwoven it is impossible to distinguish them, but they constitute the fundamental component of the neocortex. Thus, they constitute the fundamental component of human thought.
  • The basic structure of a PR has three parts: the input, the name, and the output.
  • The first part is the input – dendrites coming from other PRs that signal the presence of lower-level patterns
  • The third part is the output – axons emerging from the PR that signal the presence of its designated pattern.
  • When the inputs to a PR cross a certain threshold, it fires. That is, it emits a nerve impulse to the higher-level PRs it connects to. This is essentially the “A” PR shouting “Hey guys! I just saw the letter “A”!” When the PR for “Apple” hears such signals for a, p, p again, l, and e, it fires itself, shouting “Hey guys! I just saw “Apple!” And so on up the hierarchy.
  • “neurons that fire together, wire together,” which emphasizes the plasticity of individual neurons and is known as the Hebbian Theory, may be incorrect.
manhefnawi

How your brain links people and places | Science | AAAS - 0 views

  • Even after one exposure to the composites, neurons that had previously fired exclusively in response to one picture—like that of Eastwood—significantly increased their firing rate  when exposed to the image with which it had been combined—in one case, by 230%, Fried and colleagues report today in the journal Neuron. The fact that an individual neuron can adapt its firing rate so quickly could help explain how large, dynamic neuronal networks form complicated memories of past events, Fried says.
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