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Let's consider a case in which Ulfelder argues there is insufficient data to render a prediction -- North Korea. There is no official data on North Korean GDP, so what can we do? It turns out that the same data science approaches that were used to aggregate polls have other uses as well. One is the imputation of missing data. Yes, even when it is all missing. The basic idea is to use the general correlations among data that you do have to provide an aggregate way of estimating information that we don't have.

As it turned out, in this month's election public opinion polls were considerably more precise than the fundamentals. The fundamentals were not always providing bad predictions, but better is better.

In 2012 there were two types of models: one type based on fundamentals such as economic growth and unemployment and another based on public opinion surveys

There is a tradition in world politics to go either back until the Congress of Vienna (when there were fewer than two dozen independent countries) or to the early 1950s after the end of the Second World War. But in reality, there is no need to do this for most studies.

Ulfelder tells us that "when it comes to predicting major political crises like wars, coups, and popular uprisings, there are many plausible predictors for which we don't have any data at all, and much of what we do have is too sparse or too noisy to incorporate into carefully designed forecasting models." But this is true only for the old style of models based on annual data for countries. If we are willing to face data that are collected in rhythm with the phenomena we are studying, this is not the case

“As women we are so hard on ourselves physically and emotionally,” Ms. Olive said. “It gets you to stop and think about how we think of ourselves.”

Ms. Brice took issue with the tag line for the ad, “You’re More Beautiful Than You Think.” “I think it makes people much more susceptible to absorbing the subconscious messages,” Ms. Brice said, “that at the heart of it all is that beauty is still what defines women. It is a little hypocritical.”

“What if I did look like that woman on the left?” she said, referring to the less flattering sketches of the women. “There are people that look like that.”

“As women we are so hard on ourselves physically and emotionally,” Ms. Olive said. “It gets you to stop and think about how we think of ourselves.”

After watching the video a few times she wrote a post on her Tumblr site, which has become the dissident voice toward the campaign on social media. In a telephone interview, Ms. Brice took issue with the tag line for the ad, “You’re More Beautiful Than You Think.” “I think it makes people much more susceptible to absorbing the subconscious messages,” Ms. Brice said, “that at the heart of it all is that beauty is still what defines women. It is a little hypocritical.”

In this past weekend’s Styles section of the New York Times, Siegel uses “The Lonely Crowd” to analyze the putative “Yelpification” of contemporary life: according to Siegel, Riesman’s view was that “people went from being ‘inner-directed’ to ‘outer-directed,’ from heeding their own instincts and judgment to depending on the judgments and opinions of tastemakers and trendsetters.” The “conformist power of the crowd” and its delighted ability to write online reviews led Siegel down a sad path to a lackluster expensive dinner.

What Riesman actually suggested was that we think of social organization in terms of a series of “ideal types” along a spectrum of increasingly loose authority

On one end of the spectrum is a “tradition-directed” community, where we all understand that what we’re supposed to do is what we’re supposed to do because it’s just the thing that one does; authority is unequivocal, and there’s neither the room nor the desire for autonomous action

In the middle of the spectrum, as one moves toward a freer distribution of, and response to, authority, is “inner-direction.” The inner-directed character is concerned not with “what one does” but with “what people like us do.” Which is to say that she looks to her own internalizations of past authorities to get a sense for how to conduct her affairs.

Contemporary society, Riesman thought, was best understood as chiefly “other-directed,” where the inculcated authority of the vertical (one’s lineage) gives way to the muddled authority of the horizontal (one’s peers).

The inner-directed person orients herself by an internal “gyroscope,” while the other-directed person orients herself by “radar.”

It’s not that the inner-directed person consults some deep, subjective, romantically sui generis oracle. It’s that the inner-directed person consults the internalized voices of a mostly dead lineage, while her other-directed counterpart heeds the external voices of her living contemporaries.

“the gyroscopic mechanism allows the inner-directed person to appear far more independent than he really is: he is no less a conformist to others than the other-directed person, but the voices to which he listens are more distant, of an older generation, their cues internalized in his childhood.” The inner-directed person is, simply, “somewhat less concerned than the other-directed person with continuously obtaining from contemporaries (or their stand-ins: the mass media) a flow of guidance, expectation, and approbation.

Riesman drew no moral from the transition from a community of primarily inner-directed people to a community of the other-directed. Instead, he saw that each ideal type had different advantages and faced different problems

As Riesman understood it, the primary disciplining emotion under tradition direction is shame, the threat of ostracism and exile that enforces traditional action. Inner-directed people experience not shame but guilt, or the fear that one’s behavior won’t be commensurate with the imago within. And, finally, other-directed folks experience not guilt but a “contagious, highly diffuse” anxiety—the possibility that, now that authority itself is diffuse and ambiguous, we might be doing the wrong thing all the time.

Siegel is right to make the inference, if wayward in his conclusions. It makes sense to associate the anxiety of how to relate to livingly diffuse authorities with the Internet, which presents the greatest signal-to-noise-ratio problem in human history.

The problem with Yelp is not the role it plays, for Siegel, in the proliferation of monoculture; most people of my generation have learned to ignore Yelp entirely. It’s the fact that, after about a year of usefulness, Yelp very quickly became a terrible source of information.

There are several reasons for this. The first is the nature of an algorithmic response to the world. As Jaron Lanier points out in “Who Owns the Future?,” the hubris behind each new algorithm is the idea that its predictive and evaluatory structure is game-proof; but the minute any given algorithm gains real currency, all the smart and devious people devote themselves to gaming it. On Yelp, the obvious case would be garnering positive reviews by any means necessary.

A second problem with Yelp’s algorithmic ranking is in the very idea of using online reviews; as anybody with a book on Amazon knows, they tend to draw more contributions from people who feel very strongly about something, positively or negatively. This undermines the statistical relevance of their recommendations.

the biggest problem with Yelp is not that it’s a popularity contest. It’s not even that it’s an exploitable popularity contest.

it’s the fact that Yelp makes money by selling ads and prime placements to the very businesses it lists under ostensibly neutral third-party review

But Yelp’s valuations are always possibly in bad faith, even if its authority is dressed up as the distilled algorithmic wisdom of a crowd. For Riesman, that’s the worst of all possible worlds: a manipulated consumer certainty that only shores up the authority of an unchosen, hidden source. In that world, cold monkfish is the least of our problems.

"The classic finding — I would say it is the most replicated finding in psychology — is that people who are good at one type of mental task tend to be good at them all,"

G-factor is real in the sense it can predict outcomes in our lives — how much money you'll make, how productive of a worker you might be, and, most chillingly, how likely you are to die an earlier death.

According to the research, people with high IQs tend to be healthier and live longer than the rest of us

One is the fact that people with higher IQs tend to make more money than people with lower scores. Money is helpful in maintaining weight, nutrition, and accessing good health care.

IQ often beats personality when it comes to predicting life outcomes: Personality traits, a recent study found, can explain about 4 percent of the variance in test scores for students under age 16. IQ can explain 25 percent, or an even higher proportion, depending on the study.

Many of these correlations are less than .5, which means there's plenty of room for individual differences. So, yes, very smart people who are awful at their jobs exist. You're just less likely to come across them.

The correlation between IQ and happiness is usually positive, but also usually smaller than one might expect (and sometimes not statistically significant)," Ritchie says.

It could also be that people with higher IQs are smart enough to avoid accidents and mishaps. There's actually some evidence to support this: Higher-IQ people are less likely to die in traffic accidents.

Even though intelligence generally declines with age, those who had high IQs as children were most likely to retain their smarts as very old people.

"If we know the genes related to intelligence — and we know these genes are related to cognitive decline as well — then we can start to a predict who is going to have the worst cognitive decline, and devote health care medical resources to them," he says.

Studies comparing identical and fraternal twins find about half of IQ can be explained by genetics.

genetics seems to become more predictive of IQ with age.

The idea is as we age, we grow more in control of our environments. Those environments we create can then "amplify" the potential of our genes.

About half the variability in IQ is attributed to the environment. Access to nutrition, education, and health care appear to play a big role.

People’s lives are really messy, and the environments they are in are messy. There’s a possibility that a lot of the environmental effect on a person’s intelligence is random."

Hurray! Mean IQ scores appear to be increasing between 2 and 3 points per decade.

This phenomenon is know as the Flynn effect, and it is likely the result of increasing quality of childhood nutrition, health care, and education.

Inevitably, some of those initial steps will have been influenced by seemingly trivial random events. So it is reasonable to conclude that virtually all successful careers entail at least a modicum of luck.

One’s date of birth can matter enormously, for example. According to a 2008 study, most children born in the summer tend to be among the youngest members of their class at school, which appears to explain why they are significantly less likely to hold leadership positions during high school and thus, another study indicates, less likely to land premium jobs later in life. Similarly, according to research published in the journal Economics Letters in 2012, the number of American chief executives who were born in June and July is almost one-third lower than would be expected on the basis of chance alone.

To acknowledge the importance of random events is not to suggest that success is independent of talent and effort. In highly competitive arenas, those who do well are almost always extremely talented and hard-working.

Such expertise comes not from luck but from thousands of hours of assiduous effort.

Being born in a good environment is one of the few dimensions of luck we can control — that is, at least we can decide how lucky our children will be.

The unlucky population is growing, and its luck is getting worse.

Evidence from the social sciences demonstrates that beyond a certain income threshold, people’s sense of well-being depends much more on their relative purchasing power than on how much they spend in absolute terms. If top tax rates were a little higher, all homes would be a little smaller, all cars a little less expensive, all diamonds a little more modest and all celebrations a little less costly. The standards that define “special” would adjust accordingly, leaving most successful people quite satisfied.

Merely prompting people to reflect on their good fortune tends to make them more willing to contribute to the common good, according to a 2010 study published in the journal Emotion.

If you enjoy being able to speak your mind publicly and practice (or abstain from practicing) the religion of your choice, please think of this Memorial Day as more than a beachside, grill-side day off from work. Attend a local ceremony; thank a veteran; reach out to the family of a deployed or wounded service member.

But both moms and dads directed their sons to face their fears, with instruction on how to complete the task on their own.

Misadventures meant that I should try again. With each triumph over fear and physical adversity, I gained confidence.

She said that her own mother had been very fearful, gasping at anything remotely rough-and-tumble. “I had been so discouraged from having adventures, and I wanted you to have a more exciting childhood,”

arents are “four times more likely to tell girls than boys to be more careful”

“Girls may be less likely than boys to try challenging physical activities, which are important for developing new skills.” This study points to an uncomfortable truth: We think our daughters are more fragile, both physically and emotionally, than our sons. Advertisement Continue reading the main story Advertisement Continue reading the main story

Nobody is saying that injuries are good, or that girls should be reckless. But risk taking is important

It follows that by cautioning girls away from these experiences, we are not protecting them. We are failing to prepare them for life.

When a girl learns that the chance of skinning her knee is an acceptable reason not to attempt the fire pole, she learns to avoid activities outside her comfort zone.

Fear becomes a go-to feminine trait, something girls are expected to feel and express at will.

By the time a girl reaches her tweens no one bats an eye when she screams at the sight of an insect.

When girls become women, this fear manifests as deference and timid decision making

We must chuck the insidious language of fear (Be careful! That’s too scary!) and instead use the same terms we offer boys, of bravery and resilience. We need to embolden girls to master skills that at first appear difficult, even dangerous. And it’s not cute when a 10-year-old girl screeches, “I’m too scared.”

I was often scared. Of course I was. So were the men.

He complained to me that golf publications never rank his courses high enough, because the people who do the rating hold a grudge against him, but he also said that he never allows raters to play his courses, because they would just get in the way of the members.

He wanted the number, and the fact that I hadn’t published the number proved that I was just like all the other biased reporters, who, because we’re all part of the anti-Trump media conspiracy, never give him as much credit as he deserves for being awesome.

In Trump’s own mind, I suspect, he really did shoot 71 that day, if not (by now) 69. Trump’s world is a parallel universe in which truth takes many forms, none of them necessarily based on reality.

There was no guarantee that the economy’s downward spiral wouldn’t continue, as frightened businesses and consumers curbed spending and, in the process, increased unemployment. The CEA presents a series of charts comparing the 2008-2009 slump with the Great Depression. In every instance, the 2008-2009 downturn was as bad as — or worse than — the first year of the Great Depression: employment loss, drop in global trade and change in households’ net worth.

The starkest of these was the fall in households’ net worth (people’s assets, such as homes and stock, minus their debts, such as mortgages and credit-card balances). It dropped by $13 trillion, about a fifth, from its high point in 2007 to its trough in 2009. This decline, the CEA notes, “was far larger than the reduction [adjusted for inflation] . . . at the onset of the Great Depression.”

What separates then from now is that, after 18 months or so, spending turned up in 2009 while it continued declining in the 1930s. This difference reflected, at least in part, the aggressive policies adopted to blunt the downturn. The Fed cut short-term interest rates to zero and provided other avenues of cheap credit; the Troubled Asset Relief Program (TARP), enacted in the final months of the Bush administration, poured money into major banks to reassure the public of their solvency.

Still, Obama’s role was crucial. Against opposition, he decided to rescue General Motors and Chrysler. Throwing them onto the tender mercies of the market would have been a huge blow to the industrial Midwest and to national psychology. He also championed a sizable budget “stimulus.” Advertised originally as $787 billion, it was actually $2.6 trillion over four years when the initial program was combined with later proposals and so-called “automatic stabilizers” are included, the CEA says

More generally, Obama projected reason and calm when much of the nation was fearful and frazzled. Of course, he didn’t single-handedly restore confidence, but he made a big contribution

the recovery from the Great Recession is mostly complete. This seems plausible. Since the low point, employment is up 15.6 million jobs. Rising home and stock prices have boosted inflation-adjusted household net worth by 16 percent. Gross domestic product — the economy — is nearly 12 percent higher than before the financial crisis

his impact is underestimated. Suppose we had had a second Great Depression with, say, peak unemployment of 15 percent. Almost all our problems — from poverty to political polarization — would have worsened. Obama’s influence must be considered in this context. When historians do, they may be more impressed.

Complaining about political correctness is patriotically correct. The patriotically correct must use the non-word “illegals,” or “illegal immigrant” or “illegal alien” to describe foreigners who broke our immigration laws. Dissenters support “open borders” or “shamnesty” for 30 million illegal alien invaders. The punishment is deportation because “we’re a nation of laws” and they didn’t “get in line,” even though no such line actually exists. Just remember that they are never anti-immigration, only anti-illegal immigration, even when they want to cut legal immigration.

Black Lives Matter is racist because it implies that black lives are more important than other lives, but Blue Lives Matter doesn’t imply that cops’ lives are more important than the rest of ours. Banning Islam or Muslim immigration is a necessary security measure, but homosexuals should not be allowed to get married because it infringes on religious liberty. Transgender people could access women’s restrooms for perverted purposes, but Donald Trump walking in on nude underage girls in dressing rooms before a beauty pageant is just “media bias.”

Terrorism is an “existential threat,” even though the chance of being killed in a terrorist attack is about 1 in 3.2 million a year. Saying the words “radical Islam” when describing terrorism is an important incantation necessary to defeat that threat. When Chobani yogurt founder Hamdi Ulukaya decides to employ refugees in his factories, it’s because of his ties to “globalist corporate figures.” Waving a Mexican flag on U.S. soil means you hate America, but waving a Confederate flag just means you’re proud of your heritage.

Insufficient displays of patriotism among the patriotically correct can result in exclusion from public life and ruined careers. It also restricts honest criticism of failed public policies, diverting blame for things like the war in Iraq to those Americans who didn’t support the war effort enough.

Poor white Americans are the victims of economic dislocation and globalization beyond their control, while poor blacks and Hispanics are poor because of their failed cultures. The patriotically correct are triggered when they hear strangers speaking in a language other than English. Does that remind you of the PC duty to publicly shame those who use unacceptable language to describe race, gender or whatever other identity is the victim du jour?

The patriotically correct rightly ridicule PC “safe spaces” but promptly retreat to Breitbart or talk radio, where they can have mutually reinforcing homogeneous temper tantrums while complaining about the lack of intellectual diversity on the left.

There is no such thing as too much national security, but it’s liberals who want to coddle Americans with a “nanny state.”

Those who disagree with the patriotically correct are animated by anti-Americanism, are post-American, or deserve any other of a long list of clunky and vague labels that signal virtue to other members of the patriotic in-group.

Every group has implicit rules against certain opinions, actions and language as well as enforcement mechanisms — and the patriotically correct are no exception. But they are different because they are near-uniformly unaware of how they are hewing to a code of speech and conduct similar to the PC lefties they claim to oppose.

The modern form of political correctness on college campuses and the media is social tyranny with manners, while patriotic correctness is tyranny without the manners, and its adherents do not hesitate to use the law to advance their goals.

It’s more time than people spend reading (19 minutes); participating in sports or exercise (17 minutes); or social events (four minutes). It’s almost as much time as people spend eating and drinking (1.07 hours).

the average time people spend on Facebook has gone up — from around 40 minutes in 2014 — even as the number of monthly active users has surged. And that’s just the average. Some users must be spending many hours a day on the site,

time has become the holy grail of digital media.

Time is the best measure of engagement, and engagement correlates with advertising effectiveness. Time also increases the supply of impressions that Facebook can sell, which brings in more revenue (a 52 percent increase last quarter to $5.4 billion).

And time enables Facebook to learn more about its users — their habits and interests — and thus better target its ads. The result is a powerful network effect that competitors will be hard pressed to match.

the only one that comes close is Alphabet’s YouTube, where users spent an average of 17 minutes a day on the site. That’s less than half the 35 minutes a day users spent on Facebook

ComScore reported that television viewing (both live and recorded) dropped 2 percent last year, and it said younger viewers in particular are abandoning traditional live television. People ages 18-34 spent just 47 percent of their viewing time on television screens, and 40 percent on mobile devices.

People spending the most time on Facebook also tend to fall into the prized 18-to-34 demographic sought by advertisers.

“You hear a narrative that young people are fleeing Facebook. The data show that’s just not true. Younger users have a wider appetite for social media, and they spend a lot of time on multiple networks. But they spend more time on Facebook by a wide margin.”

What aren’t Facebook users doing during the 50 minutes they spend there? Is it possibly interfering with work (and productivity), or, in the case of young people, studying and reading?

While the Bureau of Labor Statistics surveys nearly every conceivable time-occupying activity (even fencing and spelunking), it doesn’t specifically tally the time spent on social media, both because the activity may have multiple purposes — both work and leisure — and because people often do it at the same time they are ostensibly engaged in other activities

The closest category would be “computer use for leisure,” which has grown from eight minutes in 2006, when the bureau began collecting the data, to 14 minutes in 2014, the most recent survey. Or perhaps it would be “socializing and communicating with others,” which slipped from 40 minutes to 38 minutes.

But time spent on most leisure activities hasn’t changed much in those eight years of the bureau’s surveys. Time spent reading dropped from an average of 22 minutes to 19 minutes. Watching television and movies increased from 2.57 hours to 2.8. Average time spent working declined from 3.4 hours to 3.25. (Those hours seem low because much of the population, which includes both young people and the elderly, does not work.)

The bureau’s numbers, since they cover the entire population, may be too broad to capture important shifts among important demographic groups

Users spent an average of nine minutes on all of Yahoo’s sites, two minutes on LinkedIn and just one minute on Twitter

Among those 55 and older, 70 percent of their viewing time was on television, according to comScore. So among young people, much social media time may be coming at the expense of traditional television.

comScore’s data suggests that people are spending on average just six to seven minutes a day using social media on their work computers. “I don’t think Facebook is displacing other activity,” he said. “People use it during downtime during the course of their day, in the elevator, or while commuting, or waiting.

Facebook, naturally, is busy cooking up ways to get us to spend even more time on the platform

A crucial initiative is improving its News Feed, tailoring it more precisely to the needs and interests of its users, based on how long people spend reading particular posts. For people who demonstrate a preference for video, more video will appear near the top of their news feed. The more time people spend on Facebook, the more data they will generate about themselves, and the better the company will get at the task.

Through social media, “sharing with friends” is rationalized to the point of relentless efficiency. The current apex of such rationalization is frictionless sharing: we no longer need to perform the labor of telling our individual friends about what we read online, or of copy-pasting links and emailing them to “the list,” or of clicking a button for one-step posting of links on our Facebook walls. With frictionless sharing, all we have to do is look, or listen; what we’ve read or watched or listened to is then “shared” or “scrobbled” to our Facebook, Twitter, Tumblr, or whatever other online profiles. Whether we share content actively or passively, however, we feel as though we’ve done our half of the friendship-labor by ‘pushing’ the information to our walls, streams, and tumblelogs. It’s then up to our friends to perform their halves of the friendship-labor by ‘pulling’ the information we share from those platforms.

We’re busy people; we like the idea of making one announcement on Facebook and being done with it, rather than having to repeat the same story over and over again to different friends individually. We also like not always having to think about which friends might like which stories or songs; we like the idea of sharing with all of our friends at once, and then letting them sort out amongst themselves who is and isn’t interested. Though social media can create burdensome expectations to keep up with strong ties, weak ties, and everyone in between, social media platforms can also be very efficient. Using the same moment of friendship-labor to tend multiple friendships at once kills more birds with fewer stones.

sometimes we like the devolution of friendship. When we have to ‘pull’ friendship-content instead of receiving it in a ‘push’, we can pick and choose which content items to pull. We can ignore the baby pictures, or the pet pictures, or the sushi pictures—whatever it is our friends post that we only pretend to care about

I’ve been thinking since, however, on what it means to view our friends as “generalized others.” I may now feel like less of like “creepy stalker” when I click on a song in someone’s Spotify feed, but I don’t exactly feel ‘shared with’ either. Far as I know, I’ve never been SpotiVaguebooked (or SubSpotified?); I have no reason to think anyone is speaking to me personally as they listen to music, or as they choose not to disable scrobbling (if they make that choice consciously at all). I may have been granted the opportunity to view something, but it doesn’t follow that what I’m viewing has anything to do with me unless I choose to make it about me. Devolved friendship means it’s not up to us to interact with our friends personally; instead it’s now up to our friends to make our generalized broadcasts personal.

While I won’t go so far as to say they’re definitely ‘problems,’ there are two major things about devolved friendship that I think are worth noting. The first is the non-uniform rationalization of friendship-labor, and the second is the depersonalization of friendship-labor.

In short, “sharing” has become a lot easier and a lot more efficient, but “being shared with” has become much more time-consuming, demanding, and inefficient (especially if we don’t ignore most of our friends most of the time). Given this, expecting our friends to keep up with our social media content isn’t expecting them to meet us halfway; it’s asking them to take on the lion’s share of staying in touch with us. Our jobs (in this role) have gotten easier; our friends’ jobs have gotten harder.

The second thing worth noting is that devolved friendship is also depersonalized friendship.

Personal interaction doesn’t just happen on Spotify, and since I was hoping Spotify would be the New Porch, I initially found Spotify to be somewhat lonely-making. It’s the mutual awareness of presence that gives companionate silence its warmth, whether in person or across distance. The silence within Spotify’s many sounds, on the other hand, felt more like being on the outside looking in. This isn’t to say that Spotify can’t be social in a more personal way; once I started sending tracks to my friends, a few of them started sending tracks in return. But it took a lot more work to get to that point, which gets back to the devolution of friendship (as I explain below).

Within devolved friendship interactions, it takes less effort to be polite while secretly waiting for someone to please just stop talking.

When we consider the lopsided rationalization of ‘sharing’ and ‘shared with,’ as well as the depersonalization of frictionless sharing and generalized broadcasting, what becomes clear is this: the social media deck is stacked in such a way as to make being ‘a self’ easier and more rewarding than being ‘a friend.’

It’s easy to share, to broadcast, to put our selves and our tastes and our identity performances out into the world for others to consume; what feedback and friendship we get in return comes in response to comparatively little effort and investment from us. It takes a lot more work, however, to do the consumption, to sift through everything all (or even just some) of our friends produce, to do the work of connecting to our friends’ generalized broadcasts so that we can convert their depersonalized shares into meaningful friendship-labor.

We may be prosumers of social media, but the reward structures of social media sites encourage us to place greater emphasis on our roles as share-producers—even though many of us probably spend more time consuming shared content than producing it. There’s a reason for this, of course; the content we produce (for free) is what fuels every last ‘Web 2.0’ machine, and its attendant self-centered sociality is the linchpin of the peculiarly Silicon Valley concept of “Social” (something Nathan Jurgenson and I discuss together in greater detail here). It’s not super-rewarding to be one of ten people who “like” your friend’s shared link, but it can feel rewarding to get 10 “likes” on something you’ve shared—even if you have hundreds or thousands of ‘friends.’ Sharing is easy; dealing with all that shared content is hard.

t I wonder sometimes if the shifts in expectation that accompany devolved friendship don’t migrate across platforms and contexts in ways we don’t always see or acknowledge. Social media affects how we see the world—and how we feel about being seen in the world—even when we’re not engaged directly with social media websites. It’s not a stretch, then, to imagine that the affordances of social media platforms might also affect how we see friendship and our obligations as friends most generally.

And in many cases, though not all, people living in areas threatened by severe natural hazards do so by choice. If a risk has not been imposed on us, we take it much less seriously. Though Schulz’s piece certainly made a splash online, it is hard to imagine a mass exodus of Portlanders and Seattleites in response. Hey, they like it there.

They don’t have much to compare the future earthquake to. After all, there hasn’t been an earthquake or tsunami like it there since roughly 1700. Schulz poeticizes this problem, calling out humans for their “ignorance of or an indifference to those planetary gears which turn more slowly than our own.” Once again, this confounds our emotional connection to the risk.

But our “temporal parochialism,” as Schulz calls it, also undoes our grasp on probability. “We think probability happens with some sort of regularity or pattern,” says Ropeik. “If an earthquake is projected to hit within 50 years, when there hasn’t been one for centuries, we don’t think it’s going to happen.” Illogical thinking works in reverse, too: “If a minor earthquake just happened in Seattle, we think we’re safe.”

The belief that an unlikely event won’t happen again for a while is called a gambler’s fallacy. Probability doesn’t work like that. The odds are the same with every roll of the dice.

For individuals and government alike, addressing every point of concern requires a cost-benefit analysis. When kids barely have pencils and paper in schools that already exist, how much is appropriate to invest in earthquake preparedness? Even when that earthquake will kill thousands, displace millions, and cripple a region’s economy for decades to come—as Cascadia is projected to—the answer is complicated. “You immediately run into competing issues,” says Slovic. “When you’re putting resources into earthquake protection that has to be taken away from current social needs—that is a very difficult sell.”​

There are things people can do to combat our innate irrationality. The first is obvious: education. California has a seismic safety commission whose job is to publicize the risks of earthquakes and advocate for preparedness at household and state policy levels.

Another idea is similar to food safety ratings in the windows of some cities’ restaurants. Schulz reports that some 75 percent of Oregon’s structures aren’t designed to hold up to a really big Cascadia quake. “These buildings could have their risk and safety score publicly posted,” says Slovic. “That would motivate people to retrofit or mitigate those risks, particularly if they are schools.”

science points to a hard truth. Humans are simply inclined to be more concerned about what’s immediately in front of us: Snakes, fast-moving cars, unfamiliar chemical compounds in our breakfast cereal and the like will always elicit a quicker response than an abstract, far-off hazard.

Speaking later on Saturday in the White House briefing room, Mr. Spicer amplified Mr. Trump’s false claims. “This was the largest audience to ever witness an inauguration — period — both in person and around the globe,” he said.There is no evidence to support this claim. Not only was Mr. Trump’s inauguration crowd far smaller than Mr. Obama’s in 2009, but he also drew fewer television viewers in the United States (30.6 million) than Mr. Obama did in 2009 (38 million) and Ronald Reagan did in 1981 (42 million), Nielsen reported. Figures for online viewership were not available.

Mr. Spicer said that Washington’s Metro system had greater ridership on Friday than it did for Mr. Obama’s 2013 inauguration. “We know that 420,000 people used the D.C. Metro public transit yesterday, which actually compares to 317,000 that used it for President Obama’s last inaugural,” Mr. Spicer said.Neither number is correct, according to the transit system, which reported 570,557 entries into the rail system on Friday, compared with 782,000 on Inauguration Day in 2013.

Substantial research has already been conducted in the realm of social trust, however, Freitag and Bauer contend that endemic methodological shortcomings have consistently yielded inconclusive data.

defined personality values using psychology's "Big Five" personality traits (agreeableness, openness to experience, extraversion, conscientiousness, and neuroticism-emotional stability)

The study results showed that people often trust total strangers more than they trust their friends.

Freitag and Bauer did highlight the limitations of their research. They expressly cautioned that the role of education, our networks, and our trust in institutions, matter and cannot be underestimated.

He contends in “Coming Apart” that there was far greater social cohesion across class lines 50 years ago because “the powerful norms of social and economic behavior in 1960 swept virtually everyone into their embrace,” adding in a Jan. 21 op-ed in the Wall Street Journal thatOver the past 50 years, that common civic culture has unraveled. We have developed a new upper class with advanced educations, often obtained at elite schools, sharing tastes and preferences that set them apart from mainstream America. At the same time, we have developed a new lower class, characterized not by poverty but by withdrawal from America’s core cultural institutions.According to Murray, higher education has now become a proxy for higher IQ, as elite colleges become sorting mechanisms for finding, training and introducing to each other the most intellectually gifted young people. Fifty years into the education revolution, members of this elite are likely to be themselves the offspring of cognitively gifted parents, and to ultimately bear cognitively gifted children.

“Industriousness: The norms for work and women were revolutionized after 1960, but the norm for men putatively has remained the same: Healthy men are supposed to work. In practice, though, that norm has eroded everywhere.”

Murray makes the case that cognitive ability is worth ever more in modern advanced, technologically complex hypercompetitive market economies. As an example, Murray quotes Bill Gates: “Software is an IQ business. Microsoft must win the IQ war or we won’t have a future.”

Murray alleges that those with higher IQs now exhibit personal and social behavioral choices in areas like marriage, industriousness, honesty and religiosity that allow them to enjoy secure and privileged lives. Whites in the lower social-economic strata are less cognitively able – in Murray’s view – and thus less well-equipped to resist the lure of the sexual revolution and doctrines of self-actualization so they succumb to higher rates of family dissolution, non-marital births, worklessness and criminality. This interaction between IQ and behavioral choice, in Murray’s framework, is what has led to the widening income and cultural gap.

Despised by the left, Murray has arguably done liberals a service by requiring them to deal with those whose values may seem alien, to examine the unintended consequences of their policies and to grapple with the political impact of assertions made by the right. He has also amassed substantial evidence to bolster his claims and at the same time elicited a formidable academic counter-attack.

To Murray, the overarching problem is that liberal elites, while themselves living lives of probity, have refused to proselytize for the bourgeois virtues to which they subscribe, thus leaving their less discerning fellow-citizens to flounder in the anti-bourgeois legacy of the counter-cultural 1960s.

“Great Civic Awakening” among the new upper class – an awakening that will lead to the kind of “moral rearmament” and paternalism characteristic of anti-poverty drives in the 19th century. To achieve this, Murray believes, the “new upper class must once again fall in love with what makes America different.”

The cognitive elites Murray cites are deeply committed to liberal norms of cultural tolerance and permissiveness. The antipathy to the moralism of the religious right has, in fact, been a major force driving these upscale, secular voters into the Democratic party.

changes in the world economy may be destructive in terms of the old social model, but they are profoundly liberating and benign in and of themselves. The family farm wasn’t dying because capitalism had failed or a Malthusian crisis was driving the world to starvation. The family farm died of abundance; it died of the rapidly rising productivity that meant that fewer and fewer people had to work to produce the food on which humanity depended.Mead continues:Revolutions in manufacturing and, above all, in communications and information technology create the potential for unprecedented abundance and a further liberation of humanity from meaningless and repetitive work. Our problem isn’t that the sources of prosperity have dried up in a long drought; our problem is that we don’t know how to swim. It is raining soup, and we are stuck holding a fork.The 21st century, Mead adds,must reinvent the American Dream. It must recast our economic, social, familial, educational and political systems for new challenges and new opportunities. Some hallowed practices and institutions will have to go under the bus. But in the end, the changes will make us richer, more free and more secure than we are now.Mead’s predictions may or may not prove prescient, but it his thinking, more than Murray’s, that reflects the underlying optimism that has sustained the United States for more than two centuries — a refusal to believe that anything about human nature is essentially “intractable.” Mead’s way of looking at things is not only more inviting than Murray’s, it is also more on target.

That view is apparent in the new study's findings, such as a steep decline in concern for the environment. The study found that three times more millennials than baby boomers said they made no personal effort at all to practice sustainability. Only 51 percent of millennials said they tried to save energy by cutting down on electricity, compared with 68 percent of baby boomers and 60 percent of Gen X'ers.

The study also found a decline in civic interest, such as political participation and trust in government, as well as in concern for others, including charity donations, and in the importance of having a job worthwhile to society.

"The aphorisms have shifted to 'believe in yourself' and 'you're special,'" she says. "It emphasizes individualism, and this gets reflected in personality traits and attitudes."

Even community service, the one aspect where millennials' engagement rose, does not seem to stem from genuine altruism. The study attributes that gain to high schools in recent years requiring volunteer hours to graduate. The number of public high schools with organized community-service programs jumped from 9 percent in 1984 to 46 percent in 1999, according to the study.

adolescents aren't reckless because they underestimate risks, but because they overestimate rewards—or, rather, find rewards more rewarding than adults do. The reward centers of the adolescent brain are much more active than those of either children or adults.

What teenagers want most of all are social rewards, especially the respect of their peers

Becoming an adult means leaving the world of your parents and starting to make your way toward the future that you will share with your peers. Puberty not only turns on the motivational and emotional system with new force, it also turns it away from the family and toward the world of equals.

The second crucial system in our brains has to do with control; it channels and harnesses all that seething energy. In particular, the prefrontal cortex reaches out to guide other parts of the brain, including the parts that govern motivation and emotion. This is the system that inhibits impulses and guides decision-making, that encourages long-term planning and delays gratification.

Today's adolescents develop an accelerator a long time before they can steer and brake.

Expertise comes with experience.

In gatherer-hunter and farming societies, childhood education involves formal and informal apprenticeship. Children have lots of chances to practice the skills that they need to accomplish their goals as adults, and so to become expert planners and actors.

In the past, to become a good gatherer or hunter, cook or caregiver, you would actually practice gathering, hunting, cooking and taking care of children all through middle childhood and early adolescence—tuning up just the prefrontal wiring you'd need as an adult. But you'd do all that under expert adult supervision and in the protected world of childhood

In contemporary life, the relationship between these two systems has changed dramatically. Puberty arrives earlier, and the motivational system kicks in earlier too. At the same time, contemporary children have very little experience with the kinds of tasks that they'll have to perform as grown-ups.

The experience of trying to achieve a real goal in real time in the real world is increasingly delayed, and the growth of the control system depends on just those experiences.

This control system depends much more on learning. It becomes increasingly effective throughout childhood and continues to develop during adolescence and adulthood, as we gain more experience.

An ever longer protected period of immaturity and dependence—a childhood that extends through college—means that young humans can learn more than ever before. There is strong evidence that IQ has increased dramatically as more children spend more time in school

children know more about more different subjects than they ever did in the days of apprenticeships.

Wide-ranging, flexible and broad learning, the kind we encourage in high-school and college, may actually be in tension with the ability to develop finely-honed, controlled, focused expertise in a particular skill, the kind of learning that once routinely took place in human societies.

this new explanation based on developmental timing elegantly accounts for the paradoxes of our particular crop of adolescents.

First, experience shapes the brain.

the brain is so powerful precisely because it is so sensitive to experience. It's as true to say that our experience of controlling our impulses make the prefrontal cortex develop as it is to say that prefrontal development makes us better at controlling our impulses

Second, development plays a crucial role in explaining human nature

there is more and more evidence that genes are just the first step in complex developmental sequences, cascades of interactions between organism and environment, and that those developmental processes shape the adult brain. Even small changes in developmental timing can lead to big changes in who we become.

Brain research is often taken to mean that adolescents are really just defective adults—grown-ups with a missing part.

But the new view of the adolescent brain isn't that the prefrontal lobes just fail to show up; it's that they aren't properly instructed and exercised

Instead of simply giving adolescents more and more school experiences—those extra hours of after-school classes and homework—we could try to arrange more opportunities for apprenticeship

Summer enrichment activities like camp and travel, now so common for children whose parents have means, might be usefully alternated with summer jobs, with real responsibilities.