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But after seeing ads from Coca-Cola, Procter & Gamble and Wal-Mart appear next to racist, anti-Semitic or terrorist videos, its engineers realized their computer models had a blind spot: They did not understand context.

Now teaching computers to understand what humans can readily grasp may be the key to calming fears among big-spending advertisers that their ads have been appearing alongside videos from extremist groups and other offensive messages.

But the recent problems opened Google to criticism that it was not doing enough to look out for advertisers. It is a significant problem for a multibillion-dollar company that still gets most of its revenue through advertising.

Kahan ran the exact same test with the exact same data, except this time the question was about gun bans and crime levels. Half of the time, he presented data suggesting that a gun ban increased crime, while the other half of the time the data suggested that a gun ban decreased crime. And guess what? Among the subset of test subjects who were very good at math, they suddenly got really stupid if they didn't like the answer they got.

But in another sense, it really doesn't matter at all. These days, even relatively simple public policy issues can only be properly analyzed using statistical techniques that are beyond the understanding of virtually all of us. So the fact that ideology destroys our personal ability to do math hardly matters. In practice, nearly all of us have to rely on the word of experts when it comes to this kind of stuff, and there's never any shortage of experts to crunch the numbers and produce whatever results our respective tribes demand.

How big a deal is this? In one sense, it's even worse than it looks. Aside from being able to tell that one number is bigger than another, this is literally about the easiest possible data analysis problem you can pose. If ideologues actively turn off their minds even for something this simple, there's really no chance of changing their minds with anything even modestly more sophisticated. This is something that most of us pretty much knew already, but it's a little chilling to see it so glaringly confirmed.

You might think that if you simply started adding the natural numbers, 1 plus 2 plus 3 and so on all the way to infinity, you would get a pretty big number. At least I always did.So it came as a shock to a lot of people when, in a recent video, a pair of physicists purported to prove that this infinite series actually adds up to ...minus 1/12.

actor Peter Mullan has criticised the BBC for “horrendous bias” in its reporting of the Scottish independence referendum.

said he is “a massive supporter of public broadcasting and the licence fee”.

“Panorama made me want to go to libraries and find out about the world. I mean it when I say I owe everything to the BBC.

THIS is a strange moment for sex in America. We’ve detached it from pregnancy, matrimony and, in some circles, romance. At least, we no longer assume that intercourse signals the start of a relationship.

But the more casual sex becomes, the more we demand that our institutions and government police the line between what’s consensual and what isn’t. And we wonder how to define rape. Is it a violent assault or a violation of personal autonomy? Is a person guilty of sexual misconduct if he fails to get a clear “yes” through every step of seduction and consummation?

According to the doctrine of affirmative consent — the “yes means yes” rule — the answer is, well, yes, he is.

It’s the default prescription for any tense situation: a blind date, a speech, a job interview, the first dinner with the potential in-laws. Relax. Act natural. Just be yourself. But when you’re nervous, how can you be yourself?

Edward Slingerland. He has developed, quite deliberately, a theory of spontaneity based on millenniums of Asian philosophy and decades of research by psychologists and neuroscientists.

He calls it the paradox of wu wei, the Chinese term for “effortless action.”

before the financial crisis, many economists — even, to some extent, yours truly — believed that there was a fairly broad professional consensus on some important issues.

class interests also operate through a cruder, more direct channel. Quite simply, easy-money policies, while they may help the economy as a whole, are directly detrimental to people who get a lot of their income from bonds and other interest-paying assets — and this mainly means the very wealthy, in particular the top 0.01 percent.

The really big losers from low interest rates are the truly wealthy — not even the 1 percent, but the 0.1 percent or even the 0.01 percent. Back in 2007, before the slump, the average member of the 0.01 percent received $3 million (in 2012 dollars) in interest. By 2011, that had fallen to $1.3 million — a loss equivalent to almost 9 percent of the group’s 2007 income.

For all our talk about separation of church and state, religious language has been written into our political culture in countless ways. It is inscribed in our pledge of patriotism, marked on our money, carved into the walls of our courts and our Capitol. Perhaps because it is everywhere, we assume it has been from the beginning.

the founding fathers didn’t create the ceremonies and slogans that come to mind when we consider whether this is a Christian nation. Our grandfathers did.

Back in the 1930s, business leaders found themselves on the defensive. Their public prestige had plummeted with the Great Crash; their private businesses were under attack by Franklin D. Roosevelt’s New Deal from above and labor from below. To regain the upper hand, corporate leaders fought back on all fronts. They waged a figurative war in statehouses and, occasionally, a literal one in the streets; their campaigns extended from courts of law to the court of public opinion.

newish is the rhetoric of unreality, the insistence, chiefly by Democrats, that some politicians are incapable of perceiving the truth because they have an epistemological deficit: they no longer believe in evidence, or even in objective reality.

the past of proof is strange and, on its uncertain future, much in public life turns. In the end, it comes down to this: the history of truth is cockamamie, and lately it’s been getting cockamamier.

. Michael P. Lynch is a philosopher of truth. His fascinating new book, “The Internet of Us: Knowing More and Understanding Less in the Age of Big Data,” begins with a thought experiment: “Imagine a society where smartphones are miniaturized and hooked directly into a person’s brain.” As thought experiments go, this one isn’t much of a stretch. (“Eventually, you’ll have an implant,” Google’s Larry Page has promised, “where if you think about a fact it will just tell you the answer.”) Now imagine that, after living with these implants for generations, people grow to rely on them, to know what they know and forget how people used to learn—by observation, inquiry, and reason. Then picture this: overnight, an environmental disaster destroys so much of the planet’s electronic-communications grid that everyone’s implant crashes. It would be, Lynch says, as if the whole world had suddenly gone blind. There would be no immediate basis on which to establish the truth of a fact. No one would really know anything anymore, because no one would know how to know. I Google, therefore I am not.

Some people can walk into a room and instantly put everyone at ease. Others seem to make teeth clench and eyes roll no matter what they do

A small body of psychology research supports the idea that the way a person tends to make others feel is a consistent and measurable part of his personality. Researchers call it “affective presence.”

10 years ago in a study by Noah Eisenkraft and Hillary Anger Elfenbein. They put business-school students into groups, had them enroll in all the same classes for a semester, and do every group project together

Minimal manning—and with it, the replacement of specialized workers with problem-solving generalists—isn’t a particularly nautical concept. Indeed, it will sound familiar to anyone in an organization who’s been asked to “do more with less”—which, these days, seems to be just about everyone.

Ten years from now, the Deloitte consultant Erica Volini projects, 70 to 90 percent of workers will be in so-called hybrid jobs or superjobs—that is, positions combining tasks once performed by people in two or more traditional roles.

If you ask Laszlo Bock, Google’s former culture chief and now the head of the HR start-up Humu, what he looks for in a new hire, he’ll tell you “mental agility.

What we know about Robert Aaron Long, the suspect in Atlanta spa shootings

State and federal investigators are scrambling to learn more about Robert Aaron Long, the suspect in a string of deadly shootings at three Atlanta-area Asian spas, and his alleged motive.

He is being held without bond in Cherokee County, where he faces four counts of murder and a charge of aggravated assault, according to the county sheriff's office. He also has been charged with more four counts of murder, Atlanta Police Department said.

The modern age of space exploration includes more than 70 countries with research institutes and space agencies. However, only a few of them have launch capability, the three largest being NASA in the United States, Roscosmos in the Russian Federation, and the European Space Agency. Back in the early days of the Space Age, there were only two space agencies, both vying for supremacy in space: the U.S. and the Soviet Union (predecessor to today's Russian Federation).

Disaster in Soviet SpaceDisaster struck the Soviet program and gave them their first big setback. It happened in 1967, when cosmonaut Vladimir Komarov was killed when the parachute that was supposed to settle his Soyuz 1 capsule gently on the ground failed to open. It was the first in-flight death of a man in space in history and a great embarrassment to the program. Problems continued to mount with the Soviet N1 rocket, which also set back planned lunar missions. Eventually, the U.S. beat the Soviet Union to the Moon, and the country turned its attention to sending unmanned probes to the Moon and Venus.

The Mir YearsThe most successful space station built by the Soviet Union flew from 1986 through 2001. It was called Mir, and assembled on orbit (much as the later ISS was). It hosted a number of crew members from the Soviet Union and other countries in a show of space cooperation.

It may well be the case that some amount of community protection kicks in below 60 percent exposure, and possibly quite a bit below that threshold, and that those who exhibit a cross-reactive T-cell immune response, while still susceptible to infection, may also have some meaningful amount of protection against severe disease.

early returns suggest that while the maximalist interpretation of each hypothesis is not very credible — herd immunity has probably not been reached in many places, and cross-reactive T-cell response almost certainly does not functionally immunize those who have it — more modest interpretations appear quite plausible.

Friston suggested that the truly susceptible portion of the population was certainly not 100 percent, as most modelers and conventional wisdom had it, but a much smaller share — surely below 50 percent, he said, and likely closer to about 20 percent. The analysis was ongoing, he said, but, “I suspect, once this has been done, it will look like the effective non-susceptible portion of the population will be about 80 percent. I think that’s what’s going to happen.”

Social trust, the expectation that people will behave with good will and avoid harming others, is a concept that has long mystified both researchers and the general public alike.

evolution is about more than just rivalry, we need relationships.

What makes us inclined to give some people the benefit of the doubt, but occasionally cast a skeptical eye on others.

“What are the necessary social and psychological conditions that allow populists of Hitler’s ilk to gain a mass following and attain power?”

“There are certain traits you can recognize that Hitler and Trump have in common,” Ullrich says. “I would say the egomania, the total egocentricity of both men, and the inclination to mix lies and truth – that was very characteristic of Hitler.”

Like Trump, “Hitler exploited peoples’ feelings of resentment towards the ruling elite.” He also said he would make Germany great again. Ullrich also notes both men’s talent at playing the media, making use of new technology and their propensity for stage effects.

Instagram has become the latest social network to enable two-factor authentication, a valuable security feature that protects accounts from being compromised due to password reuse or phishing.

Instagram joins Facebook, Twitter, Google and many others in offering some form of two-factor verification.

Confusingly for users, all the methods are slightly different: Twitter requires logging in to be approved by opening the app on a trusted device, and Google uses an open standard to link up with its authenticator app, which generates new six-digit codes every 30 seconds.

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.

Amazon is a global superstore, like Walmart. It’s also a hardware manufacturer, like Apple, and a utility, like Con Edison, and a video distributor, like Netflix, and a book publisher, like Random House, and a production studio, like Paramount, and a literary magazine, like The Paris Review, and a grocery deliverer, like FreshDirect, and someday it might be a package service, like U.P.S. Its founder and chief executive, Jeff Bezos, also owns a major newspaper, the Washington Post. All these streams and tributaries make Amazon something radically new in the history of American business

Amazon is not just the “Everything Store,” to quote the title of Brad Stone’s rich chronicle of Bezos and his company; it’s more like the Everything. What remains constant is ambition, and the search for new things to be ambitious about.

It wasn’t a love of books that led him to start an online bookstore. “It was totally based on the property of books as a product,” Shel Kaphan, Bezos’s former deputy, says. Books are easy to ship and hard to break, and there was a major distribution warehouse in Oregon. Crucially, there are far too many books, in and out of print, to sell even a fraction of them at a physical store. The vast selection made possible by the Internet gave Amazon its initial advantage, and a wedge into selling everything else.

Two MIT professors have found a strong relationship between students' grades and how much sleep they're getting. What time students go to bed and the consistency of their sleep habits also make a big difference. And no, getting a good night's sleep just before a big test is not good enough -- it takes several nights in a row of good sleep to make a difference.

100 students in an MIT engineering class were given Fitbits, the popular wrist-worn devices that track a person's activity 24/7, in exchange for the researchers' access to a semester's worth of their activity data

One of the surprises was that individuals who went to bed after some particular threshold time -- for these students, that tended to be 2 a.m., but it varied from one person to another -- tended to perform less well on their tests no matter how much total sleep they ended up getting.