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A major part of managing Big Data projects, he says, is asking the right questions: How do you define the problem? What data do you need? Where does it come from? What are the assumptions behind the model that the data is fed into? How is the model different from reality?

Society might be well served if the model makers pondered the ethical dimensions of their work as well as studying the math, according to Rachel Schutt, a senior statistician at Google Research. “Models do not just predict, but they can make things happen,” says Ms. Schutt, who taught a data science course this year at Columbia. “That’s not discussed generally in our field.”

the increasing use of software that microscopically tracks and monitors online behavior has raised privacy worries. Will Big Data usher in a digital surveillance state, mainly serving corporate interests?

my bigger concern is that the algorithms that are shaping my digital world are too simple-minded, rather than too smart. That was a theme of a book by Eli Pariser, titled “The Filter Bubble: What the Internet Is Hiding From You.”

The economics community just hasn't spent much time over the past couple of decades focusing on the effect that machine intelligence is likely to have on the labor marke

The Digital Revolution is different because computers can perform cognitive tasks too, and that means machines will eventually be able to run themselves. When that happens, they won't just put individuals out of work temporarily. Entire classes of workers will be out of work permanently. In other words, the Luddites weren't wrong. They were just 200 years too early

Slowly but steadily, labor's share of total national income has gone down, while the share going to capital owners has gone up. The most obvious effect of this is the skyrocketing wealth of the top 1 percent, due mostly to huge increases in capital gains and investment income.

Robotic pets are growing so popular that Sherry Turkle, an MIT professor who studies the way we interact with technology, is uneasy about it: "The idea of some kind of artificial companionship," she says, "is already becoming the new normal."

robots will take over more and more jobs. And guess who will own all these robots? People with money, of course. As this happens, capital will become ever more powerful and labor will become ever more worthless. Those without money—most of us—will live on whatever crumbs the owners of capital allow us.

Economist Paul Krugman recently remarked that our long-standing belief in skills and education as the keys to financial success may well be outdated. In a blog post titled "Rise of the Robots," he reviewed some recent economic data and predicted that we're entering an era where the prime cause of income inequality will be something else entirely: capital vs. labor.

while it's easy to believe that some jobs can never be done by machines—do the elderly really want to be tended by robots?—that may not be true.

In the economics literature, the increase in the share of income going to capital owners is known as capital-biased technological change

The question we want to answer is simple: If CBTC is already happening—not a lot, but just a little bit—what trends would we expect to see? What are the signs of a computer-driven economy?

if automation were displacing labor, we'd expect to see a steady decline in the share of the population that's employed.

Second, we'd expect to see fewer job openings than in the past.

Third, as more people compete for fewer jobs, we'd expect to see middle-class incomes flatten in a race to the bottom.

Fourth, with consumption stagnant, we'd expect to see corporations stockpile more cash and, fearing weaker sales, invest less in new products and new factories

Fifth, as a result of all this, we'd expect to see labor's share of national income decline and capital's share rise.

We're already seeing them, and not just because of the crash of 2008. They started showing up in the statistics more than a decade ago. For a while, though, they were masked by the dot-com and housing bubbles, so when the financial crisis hit, years' worth of decline was compressed into 24 months. The trend lines dropped off the cliff.

The modern economy is complex, and most of these trends have multiple causes.

in another sense, we should be very alarmed. It's one thing to suggest that robots are going to cause mass unemployment starting in 2030 or so. We'd have some time to come to grips with that. But the evidence suggests that—slowly, haltingly—it's happening already, and we're simply not prepared for it.

the first jobs to go will be middle-skill jobs. Despite impressive advances, robots still don't have the dexterity to perform many common kinds of manual labor that are simple for humans—digging ditches, changing bedpans. Nor are they any good at jobs that require a lot of cognitive skill—teaching classes, writing magazine articles

in the middle you have jobs that are both fairly routine and require no manual dexterity. So that may be where the hollowing out starts: with desk jobs in places like accounting or customer support.

In fact, there's even a digital sports writer. It's true that a human being wrote this story—ask my mother if you're not sure—but in a decade or two I might be out of a job too

Doctors should probably be worried as well. Remember Watson, the Jeopardy!-playing computer? It's now being fed millions of pages of medical information so that it can help physicians do a better job of diagnosing diseases. In another decade, there's a good chance that Watson will be able to do this without any human help at all.

Take driverless cars.

The next step might be passenger vehicles on fixed routes, like airport shuttles. Then long-haul trucks. Then buses and taxis. There are 2.5 million workers who drive trucks, buses, and taxis for a living, and there's a good chance that, one by one, all of them will be displaced

There will be no place to go but the unemployment lin

we'll need to let go of some familiar convictions. Left-leaning observers may continue to think that stagnating incomes can be improved with better education and equality of opportunity. Conservatives will continue to insist that people without jobs are lazy bums who shouldn't be coddled. They'll both be wrong.

Corporate executives should worry too. For a while, everything will seem great for them: Falling labor costs will produce heftier profits and bigger bonuses. But then it will all come crashing down. After all, robots might be able to produce goods and services, but they can't consume them

we'll probably have only a few options open to us. The simplest, because it's relatively familiar, is to tax capital at high rates and use the money to support displaced workers. In other words, as The Economist's Ryan Avent puts it, "redistribution, and a lot of it."

would we be happy in a society that offers real work to a dwindling few and bread and circuses for the rest?

Most likely, owners of capital would strongly resist higher taxes, as they always have, while workers would be unhappy with their enforced idleness. Still, the ancient Romans managed to get used to it—with slave labor playing the role of robots—and we might have to, as well.

 economist Noah Smith suggests that we might have to fundamentally change the way we think about how we share economic growth. Right now, he points out, everyone is born with an endowment of labor by virtue of having a body and a brain that can be traded for income. But what to do when that endowment is worth a fraction of what it is today? Smith's suggestion: "Why not also an endowment of capital? What if, when each citizen turns 18, the government bought him or her a diversified portfolio of equity?"

In simple terms, if owners of capital are capturing an increasing fraction of national income, then that capital needs to be shared more widely if we want to maintain a middle-class society.

it's time to start thinking about our automated future in earnest. The history of mass economic displacement isn't encouraging—fascists in the '20s, Nazis in the '30s—and recent high levels of unemployment in Greece and Italy have already produced rioting in the streets and larger followings for right-wing populist parties. And that's after only a few years of misery.

When the robot revolution finally starts to happen, it's going to happen fast, and it's going to turn our world upside down. It's easy to joke about our future robot overlords—R2-D2 or the Terminator?—but the challenge that machine intelligence presents really isn't science fiction anymore. Like Lake Michigan with an inch of water in it, it's happening around us right now even if it's hard to see

A robotic paradise of leisure and contemplation eventually awaits us, but we have a long and dimly lit tunnel to navigate before we get there.

it’s impossible to know for sure, but, according to one publisher’s estimate, book sales in the U.S. now make up no more than seven per cent of the company’s roughly seventy-five billion dollars in annual revenue.

A monopoly is dangerous because it concentrates so much economic power, but in the book business the prospect of a single owner of both the means of production and the modes of distribution is especially worrisome: it would give Amazon more control over the exchange of ideas than any company in U.S. history.

“The key to understanding Amazon is the hiring process,” one former employee said. “You’re not hired to do a particular job—you’re hired to be an Amazonian. Lots of managers had to take the Myers-Briggs personality tests. Eighty per cent of them came in two or three similar categories, and Bezos is the same: introverted, detail-oriented, engineer-type personality. Not musicians, designers, salesmen. The vast majority fall within the same personality type—people who graduate at the top of their class at M.I.T. and have no idea what to say to a woman in a bar.”

According to Marcus, Amazon executives considered publishing people “antediluvian losers with rotary phones and inventory systems designed in 1968 and warehouses full of crap.” Publishers kept no data on customers, making their bets on books a matter of instinct rather than metrics. They were full of inefficiences, starting with overpriced Manhattan offices.

For a smaller house, Amazon’s total discount can go as high as sixty per cent, which cuts deeply into already slim profit margins. Because Amazon manages its inventory so well, it often buys books from small publishers with the understanding that it can’t return them, for an even deeper discount

According to one insider, around 2008—when the company was selling far more than books, and was making twenty billion dollars a year in revenue, more than the combined sales of all other American bookstores—Amazon began thinking of content as central to its business. Authors started to be considered among the company’s most important customers. By then, Amazon had lost much of the market in selling music and videos to Apple and Netflix, and its relations with publishers were deteriorating

In its drive for profitability, Amazon did not raise retail prices; it simply squeezed its suppliers harder, much as Walmart had done with manufacturers. Amazon demanded ever-larger co-op fees and better shipping terms; publishers knew that they would stop being favored by the site’s recommendation algorithms if they didn’t comply. Eventually, they all did.

Brad Stone describes one campaign to pressure the most vulnerable publishers for better terms: internally, it was known as the Gazelle Project, after Bezos suggested “that Amazon should approach these small publishers the way a cheetah would pursue a sickly gazelle.”

ithout dropping co-op fees entirely, Amazon simplified its system: publishers were asked to hand over a percentage of their previous year’s sales on the site, as “marketing development funds.”

The figure keeps rising, though less for the giant pachyderms than for the sickly gazelles. According to the marketing executive, the larger houses, which used to pay two or three per cent of their net sales through Amazon, now relinquish five to seven per cent of gross sales, pushing Amazon’s percentage discount on books into the mid-fifties. Random House currently gives Amazon an effective discount of around fifty-three per cent.

In December, 1999, at the height of the dot-com mania, Time named Bezos its Person of the Year. “Amazon isn’t about technology or even commerce,” the breathless cover article announced. “Amazon is, like every other site on the Web, a content play.” Yet this was the moment, Marcus said, when “content” people were “on the way out.”

In 2004, he set up a lab in Silicon Valley that would build Amazon’s first piece of consumer hardware: a device for reading digital books. According to Stone’s book, Bezos told the executive running the project, “Proceed as if your goal is to put everyone selling physical books out of a job.”

By 2010, Amazon controlled ninety per cent of the market in digital books—a dominance that almost no company, in any industry, could claim. Its prohibitively low prices warded off competition

Lately, digital titles have levelled off at about thirty per cent of book sales.

The literary agent Andrew Wylie (whose firm represents me) says, “What Bezos wants is to drag the retail price down as low as he can get it—a dollar-ninety-nine, even ninety-nine cents. That’s the Apple play—‘What we want is traffic through our device, and we’ll do anything to get there.’ ” If customers grew used to paying just a few dollars for an e-book, how long before publishers would have to slash the cover price of all their titles?

As Apple and the publishers see it, the ruling ignored the context of the case: when the key events occurred, Amazon effectively had a monopoly in digital books and was selling them so cheaply that it resembled predatory pricing—a barrier to entry for potential competitors. Since then, Amazon’s share of the e-book market has dropped, levelling off at about sixty-five per cent, with the rest going largely to Apple and to Barnes & Noble, which sells the Nook e-reader. In other words, before the feds stepped in, the agency model introduced competition to the market

But the court’s decision reflected a trend in legal thinking among liberals and conservatives alike, going back to the seventies, that looks at antitrust cases from the perspective of consumers, not producers: what matters is lowering prices, even if that goal comes at the expense of competition. Barry Lynn, a market-policy expert at the New America Foundation, said, “It’s one of the main factors that’s led to massive consolidation.”

The combination of ceaseless innovation and low-wage drudgery makes Amazon the epitome of a successful New Economy company. It’s hiring as fast as it can—nearly thirty thousand employees last year.

brick-and-mortar retailers employ forty-seven people for every ten million dollars in revenue earned; Amazon employs fourteen.

Since the arrival of the Kindle, the tension between Amazon and the publishers has become an open battle. The conflict reflects not only business antagonism amid technological change but a division between the two coasts, with different cultural styles and a philosophical disagreement about what techies call “disruption.”

Bezos told Charlie Rose, “Amazon is not happening to bookselling. The future is happening to bookselling.”

n Grandinetti’s view, the Kindle “has helped the book business make a more orderly transition to a mixed print and digital world than perhaps any other medium.” Compared with people who work in music, movies, and newspapers, he said, authors are well positioned to thrive. The old print world of scarcity—with a limited number of publishers and editors selecting which manuscripts to publish, and a limited number of bookstores selecting which titles to carry—is yielding to a world of digital abundance. Grandinetti told me that, in these new circumstances, a publisher’s job “is to build a megaphone.”

it offers an extremely popular self-publishing platform. Authors become Amazon partners, earning up to seventy per cent in royalties, as opposed to the fifteen per cent that authors typically make on hardcovers. Bezos touts the biggest successes, such as Theresa Ragan, whose self-published thrillers and romances have been downloaded hundreds of thousands of times. But one survey found that half of all self-published authors make less than five hundred dollars a year.

The business term for all this clear-cutting is “disintermediation”: the elimination of the “gatekeepers,” as Bezos calls the professionals who get in the customer’s way. There’s a populist inflection to Amazon’s propaganda, an argument against élitist institutions and for “the democratization of the means of production”—a common line of thought in the West Coast tech world

“Book publishing is a very human business, and Amazon is driven by algorithms and scale,” Sargent told me. When a house gets behind a new book, “well over two hundred people are pushing your book all over the place, handing it to people, talking about it. A mass of humans, all in one place, generating tremendous energy—that’s the magic potion of publishing. . . . That’s pretty hard to replicate in Amazon’s publishing world, where they have hundreds of thousands of titles.”

By producing its own original work, Amazon can sell more devices and sign up more Prime members—a major source of revenue. While the company was building the

Like the publishing venture, Amazon Studios set out to make the old “gatekeepers”—in this case, Hollywood agents and executives—obsolete. “We let the data drive what to put in front of customers,” Carr told the Wall Street Journal. “We don’t have tastemakers deciding what our customers should read, listen to, and watch.”

book publishers have been consolidating for several decades, under the ownership of media conglomerates like News Corporation, which squeeze them for profits, or holding companies such as Rivergroup, which strip them to service debt. The effect of all this corporatization, as with the replacement of independent booksellers by superstores, has been to privilege the blockbuster.

Publishers sometimes pass on this cost to authors, by redefining royalties as a percentage of the publisher’s receipts, not of the book’s list price. Recently, publishers say, Amazon began demanding an additional payment, amounting to approximately one per cent of net sales

the long-term outlook is discouraging. This is partly because Americans don’t read as many books as they used to—they are too busy doing other things with their devices—but also because of the relentless downward pressure on prices that Amazon enforces.

he digital market is awash with millions of barely edited titles, most of it dreck, while r

Amazon believes that its approach encourages ever more people to tell their stories to ever more people, and turns writers into entrepreneurs; the price per unit might be cheap, but the higher number of units sold, and the accompanying royalties, will make authors wealthier

In Friedman’s view, selling digital books at low prices will democratize reading: “What do you want as an author—to sell books to as few people as possible for as much as possible, or for as little as possible to as many readers as possible?”

The real talent, the people who are writers because they happen to be really good at writing—they aren’t going to be able to afford to do it.”

Seven-figure bidding wars still break out over potential blockbusters, even though these battles often turn out to be follies. The quest for publishing profits in an economy of scarcity drives the money toward a few big books. So does the gradual disappearance of book reviewers and knowledgeable booksellers, whose enthusiasm might have rescued a book from drowning in obscurity. When consumers are overwhelmed with choices, some experts argue, they all tend to buy the same well-known thing.

These trends point toward what the literary agent called “the rich getting richer, the poor getting poorer.” A few brand names at the top, a mass of unwashed titles down below, the middle hollowed out: the book business in the age of Amazon mirrors the widening inequality of the broader economy.

“If they did, in my opinion they would save the industry. They’d lose thirty per cent of their sales, but they would have an additional thirty per cent for every copy they sold, because they’d be selling directly to consumers. The industry thinks of itself as Procter & Gamble*. What gave publishers the idea that this was some big goddam business? It’s not—it’s a tiny little business, selling to a bunch of odd people who read.”

Bezos is right: gatekeepers are inherently élitist, and some of them have been weakened, in no small part, because of their complacency and short-term thinking. But gatekeepers are also barriers against the complete commercialization of ideas, allowing new talent the time to develop and learn to tell difficult truths. When the last gatekeeper but one is gone, will Amazon care whether a book is any good? ♦

At M.I.T., however, Keynes never went away. To be sure, stagflation showed that there were limits to what policy can do. But students continued to learn about the imperfections of markets and the role that monetary and fiscal policy can play in boosting a depressed economy.

And the M.I.T. students of the 1970s enlarged on those insights in their later work. Mr. Blanchard, for example, showed how small deviations from perfect rationality can have large economic consequences; Mr. Obstfeld showed that currency markets can sometimes experience self-fulfilling panic.

This open-minded, pragmatic approach was overwhelmingly vindicated after crisis struck in 2008. Chicago-school types warned incessantly that responding to the crisis by printing money and running deficits would lead to 70s-type stagflation, with soaring inflation and interest rates. But M.I.T. types predicted, correctly, that inflation and interest rates would stay low in a depressed economy, and that attempts to slash deficits too soon would deepen the slump.

The truth, although nobody will believe it, is that the economic analysis some of us learned at M.I.T. way back when has worked very, very well for the past seven years.

But has the intellectual success of M.I.T. economics led to comparable policy success? Unfortunately, the answer is no.

True, there have been some important monetary successes. The Fed, led by Mr. Bernanke, ignored right-wing pressure and threats — Rick Perry, as governor of Texas, went so far as to accuse him of treason — and pursued an aggressively expansionary policy that helped limit the damage from the financial crisis. In Europe, Mr. Draghi’s activism has been crucial to calming financial markets, probably saving the euro from collapse. Continue reading the main story 215 Comments

On other fronts, however, the M.I.T. gang’s good advice has been ignored. The I.M.F.’s research department, under Mr. Blanchard’s leadership, has done authoritative work on the effects of fiscal policy, demonstrating beyond any reasonable doubt that slashing spending in a depressed economy is a terrible mistake, and that attempts to reduce high levels of debt via austerity are self-defeating. But European politicians have slashed spending and demanded crippling austerity from debtors anyway.

Meanwhile, in the United States, Republicans have responded to the utter failure of free-market orthodoxy and the remarkably successful predictions of much-hated Keynesians by digging in even deeper, determined to learn nothing from experience.

being right isn’t necessarily enough to change the world. But it’s still better to be right than to be wrong, and M.I.T.-style economics, with its pragmatic openness to evidence, has been very right indeed

That doesn't even include non-hedge-fund and private-equity moves. Peter Orszag, who led President Obama's Office of Management and Budget, took a job with Citigroup when he left. The Obama administration had been closely involved with Citi in the aftermath of the financial collapse, and the bank received nearly $500 billion in bailouts. Orszag is not allowed to deal with the federal government directly, but as The Times noted, perhaps wryly, "Mr. Orszag’s actual duties are murky at best. He is expected to draw on his deep knowledge of public sector financial issues and his experience overseeing the federal budget to counsel Citi’s clients on various policy actions."

Perhaps what makes Bernanke's case so worrisome is that he has an almost universal reputation for probity. If the revolving-door system is so powerful that it can make even him look suspect, is it beyond redemption?

This is, of course, how systemic problems work—few individual cases are obviously unacceptable, but the whole is horrifying. In this case, it's the "revolving door" of movement between government positions and the financial sector—that is to say, from modestly paying positions in the public sector, overseeing financial firms, to higher-paying jobs in the private sector.

There's nothing metaphorical about "gut feelings," for what happens in the gut really does influence what we feel. Nor is it just the gastrointestinal tract that alters our minds. Mr. Damasio has shown that neurological patients who are unable to detect changes in their own bodies, like an increased heart rate or sweaty palms, are also unable to make effective decisions

This research shows that the immateriality of mind is a deep illusion. Although we feel like a disembodied soul, many feelings and choices are actually shaped by the microbes in our gut and the palpitations of our heart.

President George W. Bush’s tax cuts had similar effects between 2001 and 2007: real growth in the absence of new investment.

over the course of the last century, net business investment atrophied while G.D.P. per capita increased spectacularly. And the source of that growth? Increased consumer spending, coupled with and amplified by government outlays.

Between 1900 and 2000, real gross domestic product per capita (the output of goods and services per person) grew more than 600 percent. Meanwhile, net business investment declined 70 percent as a share of G.D.P. What’s more, in 1900 almost all investment came from the private sector — from companies, not from government — whereas in 2000, most investment was either from government spending (out of tax revenues) or “residential investment,” which means consumer spending on housing, rather than business expenditure on plants, equipment and labor.

According to the Organization for Economic Cooperation and Development, retained corporate earnings that remain uninvested are now close to 8 percent of G.D.P., a staggering sum in view of the unemployment crisis we face.

So corporate profits do not drive economic growth — they’re just restless sums of surplus capital, ready to flood speculative markets at home and abroad. In the 1920s, they inflated the stock market bubble, and then caused the Great Crash. Since the Reagan revolution, these superfluous profits have fed corporate mergers and takeovers, driven the dot-com craze, financed the “shadow banking” system of hedge funds and securitized investment vehicles, fueled monetary meltdowns in every hemisphere and inflated the housing bubble.

we doubt the moral worth of consumer culture. Like the abstemious ant who scolds the feckless grasshopper as winter approaches, we think that saving is the right thing to do. Even as we shop with abandon, we feel that if only we could contain our unruly desires, we’d be committing ourselves to a better future. But we’re wrong.

Consumer spending is not only the key to economic recovery in the short term; it’s also necessary for balanced growth in the long term. If our goal is to repair our damaged economy, we should bank on consumer culture — and that entails a redistribution of income away from profits toward wages, enabled by tax policy and enforced by government spending.

“You see a woman like this and you say, ‘Wow, I want to look like her,’ ” said Reina Parada, as she sanded a mannequin torso in the workshop. Although she cannot afford it, she said, she would like to get implant surgery someday. “It gives you better self-esteem.”

Cosmetic procedures are so fashionable here that a woman with implants is often casually referred to as “an operated woman.” Women freely talk about their surgeries, and mannequin makers jokingly refer to the creations as being “operated” as well.

The embrace of plastic surgery clashes with the government’s socialist ideology and frequent talk of creating a society free of the taint of commercialism.

the world’s largest estimated petroleum reserves — has long fed a culture of easy money and consumerism here, along with a penchant for the quick fix and instant gratification.

“Venezuela is known for its oil, and it’s known for its beauty,”

Beauty took on a particularly important role in the late 1970s and ’80s when the country’s beauty queens, already a national obsession, were crowned Miss Universe three times.

And the beauty queens’ fame helped fuel a fascination with cosmetic surgery and procedures like breast implants, tummy tucks, nose jobs and injections to firm the buttocks.

For Mr. Sousa, beauty really is skin deep: “I say that inner beauty doesn’t exist. That’s something that unpretty women invented to justify themselves.”

To counter the weak employment market, Summers called for major growth in government expenditures to fill needs that the private sector is not addressing:In our society, whether it is taking care of the young or taking care of the old, or repairing a lot that needs to be repaired, there is a huge amount of very valuable work that needs to be done. It’s much less clear, to use a modern phrase, that there’s a viable business model for getting it done. And I guess the reason why I think there is going to need to be a lot of reflection on the role of government going forward is that, if I’m right, that there’s vitally important work to be done for which there is no standard capital business model that will get it done. That suggests important roles for public policy.

the report calls for tax and regulatory policies to encourage employee ownership, the strengthening of collective bargaining rights, regulations requiring corporations to provide fringe benefits to employees working for subcontractors, a substantial increase in the minimum wage, sharper overtime pay enforcement, and a huge increase in infrastructure appropriations – for roads, bridges, ports, schools – to spur job creation and tighten the labor market.

Summers also calls for significant increases in the progressivity of the United States tax system.

He advocates aggressive steps to eliminate “rents” — profits that result from monopoly or other forms of government protection from competition. Summers favors attacking rents in the form of “exclusionary zoning practices” that bid up the price of housing, “excessively long copyright” protections, and financial regulations “providing implicit subsidies to a fortunate minority.”

Signaling that he now finds himself on common ground with stalwarts of the Democratic left like Elizabeth Warren and Joe Stiglitz, Summers adds, “Government needs to try to make sure everyone can get access to financial markets on an equal basis.”

Summers supports looking past income inequality to the distribution of wealth. During our conversation, he pointed out that “a large fraction of capital gains escapes taxation entirely” through “the stepped up basis at death.”

The idea that an economy could suffer from a persistent shortage of demand is an enormous switch for Summers or anyone who had been adhering to the economic orthodoxy in the three decades prior to the crisisin 2008. Baker goes on to argue that Summers “now recognizes that the financial system needs serious regulation.”

Many of the policies outlined by Summers — especially on trade, taxation, financial regulation and worker empowerment — are the very policies that divide the Wall-Street-corporate wing from the working-to-middle-class wing of the Democratic Party. Put another way, these policies divide the money wing from the voting wing.

Summers has forced out in the open a set of choices that Hillary Clinton has so far avoided, choices that even if she attempts to elide them will amount to a signal of where her loyalties lie.

“The core problem,” according to Summers, is thatthere aren’t enough jobs, and if you help some people, you can help them get the jobs, but then someone else won’t get the jobs. And unless you’re doing things that are affecting the demand for jobs, you’re helping people win a race to get a finite number of jobs, and there are only so many of them.

he is “all for” more schooling and job training, but as an answer to the problems of the job marketplace, “it is fundamentally an evasion.”

Summers’s analysis of current economic conditions suggests that free market capitalism, as now structured, is producing major distortions. These distortions, in his view, have resulted in gains of $1 trillion annually to those at the top of the pyramid, and losses of $1 trillion every year to those in the bottom 80 percent.

Summers’s ascendance is a reflection of the abandonment by much of the party establishment of neo-liberal thinking, premised on the belief that unregulated markets and global trade would produce growth beneficial to worker and C.E.O. alike.

Larry Summers, who withdrew his candidacy for the chairmanship of the Federal Reserve under pressure from the liberal wing of the Democratic Party in 2013, has emerged as the party’s dominant economic policy strategist. The former Treasury secretary’s evolving message has won over many of his former critics.

the number of advanced-placement classes that local students feel compelled to take and the number of hospitalizations for depression rise in tandem.

They reflect a status consciousness that bedevils Americans at all income levels, and they underscore an economic trepidation that is sadly widespread and is seemingly intensified by the gaping divide between the haves and have-nots.

According to a 2013 survey by the C.D.C., 17 percent of American high school students had considered suicide in the previous year. Eight percent said they’d attempted it.

“The suicides are tragic, but they are at the pointy head of the pyramid, the tippy top,” she said. “Beneath them is a larger number of kids who are really struggling and beneath them is an even larger number of kids who feel an amount of stress and pressure that they shouldn’t be made to and that’s untenable.”

It reflects on the shortfalls of some modern parenting, which, in her view, can be not only overprotective but overbearing, micromanaging the lives of children, pointing them toward specific mile markers of achievement and denying them any time to flail or room to fail. They wind up simultaneously frazzled and fragile

“There’s something about childhood itself in Palo Alto and in communities like Palo Alto that undermines the mental health and wellness of our children,

while many Palo Alto parents are “wealthy and secure beyond imagining,” they’re consumed by fear of losing that perch or failing to bequeath it to their kids. “Maintaining and advancing insidiously high educational standards in our children is a way to soothe this anxiety,” he said

He recommended lightening children’s schedules, limiting the number of times that they take the SAT, lessening the message that it’s Stanford or bust.

“I will never be neutral on this issue,” he wrote. “The ‘Koala Dad’ is the far better parent than the ‘Tiger Mom.’ ”

“Want the best for your child, not for your child to be the best.”

But over the past decade, I can recall conversations with some of these individuals in which they refused to accept that there was any problem within the Republican Party, attributing such criticism to media bias.

We still see this denial, with the truly bizarre claim by some in the media that the rise of Trump is really all the fault of . . . Obama. The logic is varied.

Here is a much simpler explanation for Donald Trump: Republicans have fed the country ideas about decline, betrayal and treason. They have encouraged the forces of anti-intellectualism, obstructionism and populism. They have flirted with bigotry and racism. Trump merely chose to unashamedly embrace all of it, saying plainly what they were hinting at for years. In doing so, he hit a jackpot.

The problem is not that Republican leaders should have begun to condemn Trump last year. It is that they should have condemned the ideas and tactics that led to his rise when they began to flourish 20 years ago.

Chapian didn’t believe everything she read online, but she was also distrustful of mainstream fact-checkers and reported news. It sometimes felt to her like real facts had become indiscernible — that the truth was often somewhere in between. What she trusted most was her own ability to think critically and discern the truth, and increasingly her instincts aligned with the online community where she spent most of her time.

Her number of likes and shares on Facebook increased each year until she was sometimes awakening to check her news feed in the middle of the night, liking and commenting on dozens of posts each day. She felt as if she was being let in on a series of dark revelations about the United States, and it was her responsibility to see and to share them.

It’s one in which notionally private companies cooperate with the government to track dissidents and radicals and censor speech

ne in which your fellow citizens act as enforcers of the ideological consensus, making an example of you for comments you intended only for your friends

one in which even the wealth and power of your overlords can't buy privacy.

The second regime is the one they’re building in the People’s Republic of China.

Beijing has treated the darkest episodes of “Black Mirror” as a how-to guide for social control and subjugation

Unlike China’s system, our emerging post-privacy order is not (for now) totalitarian; its impositions are more decentralized and haphazard, more circumscribed and civilized, less designed and more evolved, more random in the punishments inflicted and the rules enforced.

our system cannot help recreating features of the Chinese order, because the way that we live on the internet leaves us naked before power in a radical new way.

the Western order in the internet age might be usefully described as a “liberalism with some police-state characteristics.” Those characteristics are shaped and limited by our political heritage of rights and individualism. But there is still plainly an authoritarian edge, a gentle “pink police state” aspect, to the new world that online life creates.

apart from the high-minded and the paranoid, privacy per se is not a major issue in our politics

for those who object inherently to our new nakedness, regard the earthquakes as too high a price for Amazon’s low prices, or fear what an Augustus or a Robespierre might someday do with all this architecture, the best hope for a partial restoration of privacy has to involve more than just an anxiety about privacy alone.

It requires a more general turn against the virtual, in which fears of digital nakedness are just one motivator among many — the political piece of a cause that’s also psychological, intellectual, aesthetic and religious.

This is the hard truth suggested by our online experience so far: That a movement to restore privacy must be, at some level, a movement against the internet

Not a pure Luddism, but a movement for limits, for internet-free spaces, for zones of enforced pre-virtual reality (childhood and education above all), for social conventions that discourage career-destroying tweets and crotch shots by encouraging us to put away our iPhones.

Sartre listened to his problem and said simply, ‘You are free, therefore choose — that is to say, invent.’ No signs are vouchsafed in this world, he said. None of the old authorities can relieve you of the burden of freedom. You can weigh up moral or practical considerations as carefully as you like, but ultimately you must take the plunge and do something, and it’s up to you what that something is.

Even if the situation is unbearable — perhaps you are facing execution, or sitting in a Gestapo prison, or about to fall off a cliff — you are still free to decide what to make of it in mind and deed. Starting from where you are now, you choose. And in choosing, you also choose who you will be.

The war had made people realise that they and their fellow humans were capable of departing entirely from civilised norms; no wonder the idea of a fixed human nature seemed questionable.

If this sounds difficult and unnerving, it’s because it is. Sartre does not deny that the need to keep making decisions brings constant anxiety. He heightens this anxiety by pointing out that what you do really matters. You should make your choices as though you were choosing on behalf of the whole of humanity, taking the entire burden of responsibility for how the human race behaves. If you avoid this responsibility by fooling yourself that you are the victim of circumstance or of someone else’s bad advice, you are failing to meet the demands of human life and choosing a fake existence, cut off from your own ‘authenticity’.

Along with the terrifying side of this comes a great promise: Sartre’s existentialism implies that it is possible to be authentic and free, as long as you keep up the effort.

almost all agreed that it was, as an article in Les nouvelles littéraires phrased it, a ‘sickening mixture of philosophic pretentiousness, equivocal dreams, physiological technicalities, morbid tastes and hesitant eroticism … an introspective embryo that one would take distinct pleasure in crushing’.

he offered a philosophy designed for a species that had just scared the hell out of itself, but that finally felt ready to grow up and take responsibility.

In this rebellious world, just as with the Parisian bohemians and Dadaists in earlier generations, everything that was dangerous and provocative was good, and everything that was nice or bourgeois was bad.

Such interweaving of ideas and life had a long pedigree, although the existentialists gave it a new twist. Stoic and Epicurean thinkers in the classical world had practised philosophy as a means of living well, rather than of seeking knowledge or wisdom for their own sake. By reflecting on life’s vagaries in philosophical ways, they believed they could become more resilient, more able to rise above circumstances, and better equipped to manage grief, fear, anger, disappointment or anxiety.

In the tradition they passed on, philosophy is neither a pure intellectual pursuit nor a collection of cheap self-help tricks, but a discipline for flourishing and living a fully human, responsible life.

For Kierkegaard, Descartes had things back to front. In his own view, human existence comes first: it is the starting point for everything we do, not the result of a logical deduction. My existence is active: I live it and choose it, and this precedes any statement I can make about myself.

Studying our own moral genealogy cannot help us to escape or transcend ourselves. But it can enable us to see our illusions more clearly and lead a more vital, assertive existence.

What was needed, he felt, was not high moral or theological ideals, but a deeply critical form of cultural history or ‘genealogy’ that would uncover the reasons why we humans are as we are, and how we came to be that way. For him, all philosophy could even be redefined as a form of psychology, or history.

For those oppressed on grounds of race or class, or for those fighting against colonialism, existentialism offered a change of perspective — literally, as Sartre proposed that all situations be judged according to how they appeared in the eyes of those most oppressed, or those whose suffering was greatest.

She observed that we need not expect moral philosophers to ‘live by’ their ideas in a simplistic way, as if they were following a set of rules. But we can expect them to show how their ideas are lived in. We should be able to look in through the windows of a philosophy, as it were, and see how people occupy it, how they move about and how they conduct themselves.

the existentialists inhabited their historical and personal world, as they inhabited their ideas. This notion of ‘inhabited philosophy’ is one I’ve borrowed from the English philosopher and novelist Iris Murdoch, who wrote the first full-length book on Sartre and was an early adopter of existentialism

What is existentialism anyway?

An existentialist who is also phenomenological provides no easy rules for dealing with this condition, but instead concentrates on describing lived experience as it presents itself. — By describing experience well, he or she hopes to understand this existence and awaken us to ways of living more authentic lives.

Existentialists concern themselves with individual, concrete human existence. — They consider human existence different from the kind of being other things have. Other entities are what they are, but as a human I am whatever I choose to make of myself at every moment. I am free — — and therefore I’m responsible for everything I do, a dizzying fact which causes — an anxiety inseparable from human existence itself.

On the other hand, I am only free within situations, which can include factors in my own biology and psychology as well as physical, historical and social variables of the world into which I have been thrown. — Despite the limitations, I always want more: I am passionately involved in personal projects of all kinds. — Human existence is thus ambiguous: at once boxed in by borders and yet transcendent and exhilarating. —

The first part of this is straightforward: a phenomenologist’s job is to describe. This is the activity that Husserl kept reminding his students to do. It meant stripping away distractions, habits, clichés of thought, presumptions and received ideas, in order to return our attention to what he called the ‘things themselves’. We must fix our beady gaze on them and capture them exactly as they appear, rather than as we think they are supposed to be.

Husserl therefore says that, to phenomenologically describe a cup of coffee, I should set aside both the abstract suppositions and any intrusive emotional associations. Then I can concentrate on the dark, fragrant, rich phenomenon in front of me now. This ‘setting aside’ or ‘bracketing out’ of speculative add-ons Husserl called epoché — a term borrowed from the ancient Sceptics,

The point about rigour is crucial; it brings us back to the first half of the command to describe phenomena. A phenomenologist cannot get away with listening to a piece of music and saying, ‘How lovely!’ He or she must ask: is it plaintive? is it dignified? is it colossal and sublime? The point is to keep coming back to the ‘things themselves’ — phenomena stripped of their conceptual baggage — so as to bail out weak or extraneous material and get to the heart of the experience.

Husserlian ‘bracketing out’ or epoché allows the phenomenologist to temporarily ignore the question ‘But is it real?’, in order to ask how a person experiences his or her world. Phenomenology gives a formal mode of access to human experience. It lets philosophers talk about life more or less as non-philosophers do, while still being able to tell themselves they are being methodical and rigorous.

Besides claiming to transform the way we think about reality, phenomenologists promised to change how we think about ourselves. They believed that we should not try to find out what the human mind is, as if it were some kind of substance. Instead, we should consider what it does, and how it grasps its experiences.

For Brentano, this reaching towards objects is what our minds do all the time. Our thoughts are invariably of or about something, he wrote: in love, something is loved, in hatred, something is hated, in judgement, something is affirmed or denied. Even when I imagine an object that isn’t there, my mental structure is still one of ‘about-ness’ or ‘of-ness’.

Except in deepest sleep, my mind is always engaged in this aboutness: it has ‘intentionality’. Having taken the germ of this from Brentano, Husserl made it central to his whole philosophy.

Husserl saw in the idea of intentionality a way to sidestep two great unsolved puzzles of philosophical history: the question of what objects ‘really’ are, and the question of what the mind ‘really’ is. By doing the epoché and bracketing out all consideration of reality from both topics, one is freed to concentrate on the relationship in the middle. One can apply one’s descriptive energies to the endless dance of intentionality that takes place in our lives: the whirl of our minds as they seize their intended phenomena one after the other and whisk them around the floor,

Understood in this way, the mind hardly is anything at all: it is its aboutness. This makes the human mind (and possibly some animal minds) different from any other naturally occurring entity. Nothing else can be as thoroughly about or of things as the mind is:

Some Eastern meditation techniques aim to still this scurrying creature, but the extreme difficulty of this shows how unnatural it is to be mentally inert. Left to itself, the mind reaches out in all directions as long as it is awake — and even carries on doing it in the dreaming phase of its sleep.

a mind that is experiencing nothing, imagining nothing, or speculating about nothing can hardly be said to be a mind at all.

Three simple ideas — description, phenomenon, intentionality — provided enough inspiration to keep roomfuls of Husserlian assistants busy in Freiburg for decades. With all of human existence awaiting their attention, how could they ever run out of things to do?

For Sartre, this gives the mind an immense freedom. If we are nothing but what we think about, then no predefined ‘inner nature’ can hold us back. We are protean.

way of this interpretation. Real, not real; inside, outside; what difference did it make? Reflecting on this, Husserl began turning his phenomenology into a branch of ‘idealism’ — the philosophical tradition which denied external reality and defined everything as a kind of private hallucination.

For Sartre, if we try to shut ourselves up inside our own minds, ‘in a nice warm room with the shutters closed’, we cease to exist. We have no cosy home: being out on the dusty road is the very definition of what we are.

One might think that, if Heidegger had anything worth saying, he could have communicated it in ordinary language. The fact is that he does not want to be ordinary, and he may not even want to communicate in the usual sense. He wants to make the familiar obscure, and to vex us. George Steiner thought that Heidegger’s purpose was less to be understood than to be experienced through a ‘felt strangeness’.

He takes Dasein in its most ordinary moments, then talks about it in the most innovative way he can. For Heidegger, Dasein’s everyday Being is right here: it is Being-in-the-world, or In-der-Welt-sein. The main feature of Dasein’s everyday Being-in-the-world right here is that it is usually busy doing something.

Thus, for Heidegger, all Being-in-the-world is also a ‘Being-with’ or Mitsein. We cohabit with others in a ‘with-world’, or Mitwelt. The old philosophical problem of how we prove the existence of other minds has now vanished. Dasein swims in the with-world long before it wonders about other minds.

Sometimes the best-educated people were those least inclined to take the Nazis seriously, dismissing them as too absurd to last. Karl Jaspers was one of those who made this mistake, as he later recalled, and Beauvoir observed similar dismissive attitudes among the French students in Berlin.

In any case, most of those who disagreed with Hitler’s ideology soon learned to keep their view to themselves. If a Nazi parade passed on the street, they would either slip out of view or give the obligatory salute like everyone else, telling themselves that the gesture meant nothing if they did not believe in it. As the psychologist Bruno Bettelheim later wrote of this period, few people will risk their life for such a small thing as raising an arm — yet that is how one’s powers of resistance are eroded away, and eventually one’s responsibility and integrity go with them.

for Arendt, if you do not respond adequately when the times demand it, you show a lack of imagination and attention that is as dangerous as deliberately committing an abuse. It amounts to disobeying the one command she had absorbed from Heidegger in those Marburg days: Think!

‘Everything takes place under a kind of anaesthesia. Objectively dreadful events produce a thin, puny emotional response. Murders are committed like schoolboy pranks. Humiliation and moral decay are accepted like minor incidents.’ Haffner thought modernity itself was partly to blame: people had become yoked to their habits and to mass media, forgetting to stop and think, or to disrupt their routines long enough to question what was going on.

Heidegger’s former lover and student Hannah Arendt would argue, in her 1951 study The Origins of Totalitarianism, that totalitarian movements thrived at least partly because of this fragmentation in modern lives, which made people more vulnerable to being swept away by demagogues. Elsewhere, she coined the phrase ‘the banality of evil’ to describe the most extreme failures of personal moral awareness.

His communicative ideal fed into a whole theory of history: he traced all civilisation to an ‘Axial Period’ in the fifth century BC, during which philosophy and culture exploded simultaneously in Europe, the Middle East and Asia, as though a great bubble of minds had erupted from the earth’s surface. ‘True philosophy needs communion to come into existence,’ he wrote, and added, ‘Uncommunicativeness in a philosopher is virtually a criterion of the untruth of his thinking.’

The idea of being called to authenticity became a major theme in later existentialism, the call being interpreted as saying something like ‘Be yourself!’, as opposed to being phony. For Heidegger, the call is more fundamental than that. It is a call to take up a self that you didn’t know you had: to wake up to your Being. Moreover, it is a call to action. It requires you to do something: to take a decision of some sort.

Being and Time contained at least one big idea that should have been of use in resisting totalitarianism. Dasein, Heidegger wrote there, tends to fall under the sway of something called das Man or ‘the they’ — an impersonal entity that robs us of the freedom to think for ourselves. To live authentically requires resisting or outwitting this influence, but this is not easy because das Man is so nebulous. Man in German does not mean ‘man’ as in English (that’s der Mann), but a neutral abstraction, something like ‘one’ in the English phrase ‘one doesn’t do that’,

for Heidegger, das Man is me. It is everywhere and nowhere; it is nothing definite, but each of us is it. As with Being, it is so ubiquitous that it is difficult to see. If I am not careful, however, das Man takes over the important decisions that should be my own. It drains away my responsibility or ‘answerability’. As Arendt might put it, we slip into banality, failing to think.

Jaspers focused on what he called Grenzsituationen — border situations, or limit situations. These are the moments when one finds oneself constrained or boxed in by what is happening, but at the same time pushed by these events towards the limits or outer edge of normal experience. For example, you might have to make a life-or-death choice, or something might remind you suddenly of your mortality,

Jaspers’ interest in border situations probably had much to do with his own early confrontation with mortality. From childhood, he had suffered from a heart condition so severe that he always expected to die at any moment. He also had emphysema, which forced him to speak slowly, taking long pauses to catch his breath. Both illnesses meant that he had to budget his energies with care in order to get his work done without endangering his life.

If I am to resist das Man, I must become answerable to the call of my ‘voice of conscience’. This call does not come from God, as a traditional Christian definition of the voice of conscience might suppose. It comes from a truly existentialist source: my own authentic self. Alas, this voice is one I do not recognise and may not hear, because it is not the voice of my habitual ‘they-self’. It is an alien or uncanny version of my usual voice. I am familiar with my they-self, but not with my unalienated voice — so, in a weird twist, my real voice is the one that sounds strangest to me.

Marcel developed a strongly theological branch of existentialism. His faith distanced him from both Sartre and Heidegger, but he shared a sense of how history makes demands on individuals. In his essay ‘On the Ontological Mystery’, written in 1932 and published in the fateful year of 1933, Marcel wrote of the human tendency to become stuck in habits, received ideas, and a narrow-minded attachment to possessions and familiar scenes. Instead, he urged his readers to develop a capacity for remaining ‘available’ to situations as they arise. Similar ideas of disponibilité or availability had been explored by other writers,

Marcel made it his central existential imperative. He was aware of how rare and difficult it was. Most people fall into what he calls ‘crispation’: a tensed, encrusted shape in life — ‘as though each one of us secreted a kind of shell which gradually hardened and imprisoned him’.

Bettelheim later observed that, under Nazism, only a few people realised at once that life could not continue unaltered: these were the ones who got away quickly. Bettelheim himself was not among them. Caught in Austria when Hitler annexed it, he was sent first to Dachau and then to Buchenwald, but was then released in a mass amnesty to celebrate Hitler’s birthday in 1939 — an extraordinary reprieve, after which he left at once for America.

we are used to reading philosophy as offering a universal message for all times and places — or at least as aiming to do so. But Heidegger disliked the notion of universal truths or universal humanity, which he considered a fantasy. For him, Dasein is not defined by shared faculties of reason and understanding, as the Enlightenment philosophers thought. Still less is it defined by any kind of transcendent eternal soul, as in religious tradition. We do not exist on a higher, eternal plane at all. Dasein’s Being is local: it has a historical situation, and is constituted in time and place.

For Marcel, learning to stay open to reality in this way is the philosopher’s prime job. Everyone can do it, but the philosopher is the one who is called on above all to stay awake, so as to be the first to sound the alarm if something seems wrong.

Second, it also means understanding that we are historical beings, and grasping the demands our particular historical situation is making on us. In what Heidegger calls ‘anticipatory resoluteness’, Dasein discovers ‘that its uttermost possibility lies in giving itself up’. At that moment, through Being-towards-death and resoluteness in facing up to one’s time, one is freed from the they-self and attains one’s true, authentic self.

If we are temporal beings by our very nature, then authentic existence means accepting, first, that we are finite and mortal. We will die: this all-important realisation is what Heidegger calls authentic ‘Being-towards-Death’, and it is fundamental to his philosophy.

Hannah Arendt, instead, left early on: she had the benefit of a powerful warning. Just after the Nazi takeover, in spring 1933, she had been arrested while researching materials on anti-Semitism for the German Zionist Organisation at Berlin’s Prussian State Library. Her apartment was searched; both she and her mother were locked up briefly, then released. They fled, without stopping to arrange travel documents. They crossed to Czechoslovakia (then still safe) by a method that sounds almost too fabulous to be true: a sympathetic German family on the border had a house with its front door in Germany and its back door in Czechoslovakia. The family would invite people for dinner, then let them leave through the back door at night.

As Sartre argued in his 1943 review of The Stranger, basic phenomenological principles show that experience comes to us already charged with significance. A piano sonata is a melancholy evocation of longing. If I watch a soccer match, I see it as a soccer match, not as a meaningless scene in which a number of people run around taking turns to apply their lower limbs to a spherical object. If the latter is what I’m seeing, then I am not watching some more essential, truer version of soccer; I am failing to watch it properly as soccer at all.

Much as they liked Camus personally, neither Sartre nor Beauvoir accepted his vision of absurdity. For them, life is not absurd, even when viewed on a cosmic scale, and nothing can be gained by saying it is. Life for them is full of real meaning, although that meaning emerges differently for each of us.

For Sartre, we show bad faith whenever we portray ourselves as passive creations of our race, class, job, history, nation, family, heredity, childhood influences, events, or even hidden drives in our subconscious which we claim are out of our control. It is not that such factors are unimportant: class and race, in particular, he acknowledged as powerful forces in people’s lives, and Simone de Beauvoir would soon add gender to that list.

Sartre takes his argument to an extreme point by asserting that even war, imprisonment or the prospect of imminent death cannot take away my existential freedom. They form part of my ‘situation’, and this may be an extreme and intolerable situation, but it still provides only a context for whatever I choose to do next. If I am about to die, I can decide how to face that death. Sartre here resurrects the ancient Stoic idea that I may not choose what happens to me, but I can choose what to make of it, spiritually speaking.

But the Stoics cultivated indifference in the face of terrible events, whereas Sartre thought we should remain passionately, even furiously engaged with what happens to us and with what we can achieve. We should not expect freedom to be anything less than fiendishly difficult.

Freedom does not mean entirely unconstrained movement, and it certainly does not mean acting randomly. We often mistake the very things that enable us to be free — context, meaning, facticity, situation, a general direction in our lives — for things that define us and take away our freedom. It is only with all of these that we can be free in a real sense.

Nor did he mean that privileged groups have the right to pontificate to the poor and downtrodden about the need to ‘take responsibility’ for themselves. That would be a grotesque misreading of Sartre’s point, since his sympathy in any encounter always lay with the more oppressed side. But for each of us — for me — to be in good faith means not making excuses for myself.

Camus’ novel gives us a deliberately understated vision of heroism and decisive action compared to those of Sartre and Beauvoir. One can only do so much. It can look like defeatism, but it shows a more realistic perception of what it takes to actually accomplish difficult tasks like liberating one’s country.

Camus just kept returning to his core principle: no torture, no killing — at least not with state approval. Beauvoir and Sartre believed they were taking a more subtle and more realistic view. If asked why a couple of innocuous philosophers had suddenly become so harsh, they would have said it was because the war had changed them in profound ways. It had shown them that one’s duties to humanity could be more complicated than they seemed. ‘The war really divided my life in two,’ Sartre said later.

Poets and artists ‘let things be’, but they also let things come out and show themselves. They help to ease things into ‘unconcealment’ (Unverborgenheit), which is Heidegger’s rendition of the Greek term alētheia, usually translated as ‘truth’. This is a deeper kind of truth than the mere correspondence of a statement to reality, as when we say ‘The cat is on the mat’ and point to a mat with a cat on it. Long before we can do this, both cat and mat must ‘stand forth out of concealedness’. They must un-hide themselves.

Heidegger does not use the word ‘consciousness’ here because — as with his earlier work — he is trying to make us think in a radically different way about ourselves. We are not to think of the mind as an empty cavern, or as a container filled with representations of things. We are not even supposed to think of it as firing off arrows of intentional ‘aboutness’, as in the earlier phenomenology of Brentano. Instead, Heidegger draws us into the depths of his Schwarzwald, and asks us to imagine a gap with sunlight filtering in. We remain in the forest, but we provide a relatively open spot where other beings can bask for a moment. If we did not do this, everything would remain in the thickets, hidden even to itself.

The astronomer Carl Sagan began his 1980 television series Cosmos by saying that human beings, though made of the same stuff as the stars, are conscious and are therefore ‘a way for the cosmos to know itself’. Merleau-Ponty similarly quoted his favourite painter Cézanne as saying, ‘The landscape thinks itself in me, and I am its consciousness.’ This is something like what Heidegger thinks humanity contributes to the earth. We are not made of spiritual nothingness; we are part of Being, but we also bring something unique with us. It is not much: a little open space, perhaps with a path and a bench like the one the young Heidegger used to sit on to do his homework. But through us, the miracle occurs.

Beauty aside, Heidegger’s late writing can also be troubling, with its increasingly mystical notion of what it is to be human. If one speaks of a human being mainly as an open space or a clearing, or a means of ‘letting beings be’ and dwelling poetically on the earth, then one doesn’t seem to be talking about any recognisable person. The old Dasein has become less human than ever. It is now a forestry feature.

Even today, Jaspers, the dedicated communicator, is far less widely read than Heidegger, who has influenced architects, social theorists, critics, psychologists, artists, film-makers, environmental activists, and innumerable students and enthusiasts — including the later deconstructionist and post-structuralist schools, which took their starting point from his late thinking. Having spent the late 1940s as an outsider and then been rehabilitated, Heidegger became the overwhelming presence in university philosophy all over the European continent from then on.

As Levinas reflected on this experience, it helped to lead him to a philosophy that was essentially ethical, rather than ontological like Heidegger’s. He developed his ideas from the work of Jewish theologian Martin Buber, whose I and Thou in 1923 had distinguished between my relationship with an impersonal ‘it’ or ‘them’, and the direct personal encounter I have with a ‘you’. Levinas took it further: when I encounter you, we normally meet face-to-face, and it is through your face that you, as another person, can make ethical demands on me. This is very different from Heidegger’s Mitsein or Being-with, which suggests a group of people standing alongside one another, shoulder to shoulder as if in solidarity — perhaps as a unified nation or Volk.

For Levinas, we literally face each other, one individual at a time, and that relationship becomes one of communication and moral expectation. We do not merge; we respond to one another. Instead of being co-opted into playing some role in my personal drama of authenticity, you look me in the eyes — and you remain Other. You remain you.

This relationship is more fundamental than the self, more fundamental than consciousness, more fundamental even than Being — and it brings an unavoidable ethical obligation. Ever since Husserl, phenomenologists and existentialists had being trying to stretch the definition of existence to incorporate our social lives and relationships. Levinas did more: he turned philosophy around entirely so that these relationships were the foundation of our existence, not an extension of it.

Her last work, The Need for Roots, argues, among other things, that none of us has rights, but each one of us has a near-infinite degree of duty and obligation to the other. Whatever the underlying cause of her death — and anorexia nervosa seems to have been involved — no one could deny that she lived out her philosophy with total commitment. Of all the lives touched on in this book, hers is surely the most profound and challenging application of Iris Murdoch’s notion that a philosophy can be ‘inhabited’.

Other thinkers took radical ethical turns during the war years. The most extreme was Simone Weil, who actually tried to live by the principle of putting other people’s ethical demands first. Having returned to France after her travels through Germany in 1932, she had worked in a factory so as to experience the degrading nature of such work for herself. When France fell in 1940, her family fled to Marseilles (against her protests), and later to the US and to Britain. Even in exile, Weil made extraordinary sacrifices. If there were people in the world who could not sleep in a bed, she would not do so either, so she slept on the floor.

The mystery tradition had roots in Kierkegaard’s ‘leap of faith’. It owed much to the other great nineteenth-century mystic of the impossible, Dostoevsky, and to older theological notions. But it also grew from the protracted trauma that was the first half of the twentieth century. Since 1914, and especially since 1939, people in Europe and elsewhere had come to the realisation that we cannot fully know or trust ourselves; that we have no excuses or explanations for what we do — and yet that we must ground our existence and relationships on something firm, because otherwise we cannot survive.

One striking link between these radical ethical thinkers, all on the fringes of our main story, is that they had religious faith. They also granted a special role to the notion of ‘mystery’ — that which cannot be known, calculated or understood, especially when it concerns our relationships with each other. Heidegger was different from them, since he rejected the religion he grew up with and had no real interest in ethics — probably as a consequence of his having no real interest in the human.

Meanwhile, the Christian existentialist Gabriel Marcel was also still arguing, as he had since the 1930s, that ethics trumps everything else in philosophy and that our duty to each other is so great as to play the role of a transcendent ‘mystery’. He too had been led to this position partly by a wartime experience: during the First World War he had worked for the Red Cross’ Information Service, with the unenviable job of answering relatives’ inquiries about missing soldiers. Whenever news came, he passed it on, and usually it was not good. As Marcel later said, this task permanently inoculated him against warmongering rhetoric of any kind, and it made him aware of the power of what is unknown in our lives.

As the play’s much-quoted and frequently misunderstood final line has it: ‘Hell is other people.’ Sartre later explained that he did not mean to say that other people were hellish in general. He meant that after death we become frozen in their view, unable any longer to fend off their interpretation. In life, we can still do something to manage the impression we make; in death, this freedom goes and we are left entombed in other’s people’s memories and perceptions.

We have to do two near-impossible things at once: understand ourselves as limited by circumstances, and yet continue to pursue our projects as though we are truly in control. In Beauvoir’s view, existentialism is the philosophy that best enables us to do this, because it concerns itself so deeply with both freedom and contingency. It acknowledges the radical and terrifying scope of our freedom in life, but also the concrete influences that other philosophies tend to ignore: history, the body, social relationships and the environment.

The aspects of our existence that limit us, Merleau-Ponty says, are the very same ones that bind us to the world and give us scope for action and perception. They make us what we are. Sartre acknowledged the need for this trade-off, but he found it more painful to accept. Everything in him longed to be free of bonds, of impediments and limitations

Of course we have to learn this skill of interpreting and anticipating the world, and this happens in early childhood, which is why Merleau-Ponty thought child psychology was essential to philosophy. This is an extraordinary insight. Apart from Rousseau, very few philosophers before him had taken childhood seriously; most wrote as though all human experience were that of a fully conscious, rational, verbal adult who has been dropped into this world from the sky — perhaps by a stork.

For Merleau-Ponty, we cannot understand our experience if we don’t think of ourselves in part as overgrown babies. We fall for optical illusions because we once learned to see the world in terms of shapes, objects and things relevant to our own interests. Our first perceptions came to us in tandem with our first active experiments in observing the world and reaching out to explore it, and are still linked with those experiences.

Another factor in all of this, for Merleau-Ponty, is our social existence: we cannot thrive without others, or not for long, and we need this especially in early life. This makes solipsistic speculation about the reality of others ridiculous; we could never engage in such speculation if we hadn’t already been formed by them.

As Descartes could have said (but didn’t), ‘I think, therefore other people exist.’ We grow up with people playing with us, pointing things out, talking, listening, and getting us used to reading emotions and movements; this is how we become capable, reflective, smoothly integrated beings.

In general, Merleau-Ponty thinks human experience only makes sense if we abandon philosophy’s time-honoured habit of starting with a solitary, capsule-like, immobile adult self, isolated from its body and world, which must then be connected up again — adding each element around it as though adding clothing to a doll. Instead, for him, we slide from the womb to the birth canal to an equally close and total immersion in the world. That immersion continues as long as we live, although we may also cultivate the art of partially withdrawing from time to time when we want to think or daydream.

When he looks for his own metaphor to describe how he sees consciousness, he comes up with a beautiful one: consciousness, he suggests, is like a ‘fold’ in the world, as though someone had crumpled a piece of cloth to make a little nest or hollow. It stays for a while, before eventually being unfolded and smoothed away. There is something seductive, even erotic, in this idea of my conscious self as an improvised pouch in the cloth of the world. I still have my privacy — my withdrawing room. But I am part of the world’s fabric, and I remain formed out of it for as long as I am here.

By the time of these works, Merleau-Ponty is taking his desire to describe experience to the outer limits of what language can convey. Just as with the late Husserl or Heidegger, or Sartre in his Flaubert book, we see a philosopher venturing so far from shore that we can barely follow. Emmanuel Levinas would head out to the fringes too, eventually becoming incomprehensible to all but his most patient initiates.

Sartre once remarked — speaking of a disagreement they had about Husserl in 1941 — that ‘we discovered, astounded, that our conflicts had, at times, stemmed from our childhood, or went back to the elementary differences of our two organisms’. Merleau-Ponty also said in an interview that Sartre’s work seemed strange to him, not because of philosophical differences, but because of a certain ‘register of feeling’, especially in Nausea, that he could not share. Their difference was one of temperament and of the whole way the world presented itself to them.

The two also differed in their purpose. When Sartre writes about the body or other aspects of experience, he generally does it in order to make a different point. He expertly evokes the grace of his café waiter, gliding between the tables, bending at an angle just so, steering the drink-laden tray through the air on the tips of his fingers — but he does it all in order to illustrate his ideas about bad faith. When Merleau-Ponty writes about skilled and graceful movement, the movement itself is his point. This is the thing he wants to understand.

We can never move definitively from ignorance to certainty, for the thread of the inquiry will constantly lead us back to ignorance again. This is the most attractive description of philosophy I’ve ever read, and the best argument for why it is worth doing, even (or especially) when it takes us no distance at all from our starting point.

By prioritising perception, the body, social life and childhood development, Merleau-Ponty gathered up philosophy’s far-flung outsider subjects and brought them in to occupy the centre of his thought.

In his inaugural lecture at the Collège de France on 15 January 1953, published as In Praise of Philosophy, he said that philosophers should concern themselves above all with whatever is ambiguous in our experience. At the same time, they should think clearly about these ambiguities, using reason and science. Thus, he said, ‘The philosopher is marked by the distinguishing trait that he possesses inseparably the taste for evidence and the feeling for ambiguity.’ A constant movement is required between these two

As Sartre wrote in response to Hiroshima, humanity had now gained the power to wipe itself out, and must decide every single day that it wanted to live. Camus also wrote that humanity faced the task of choosing between collective suicide and a more intelligent use of its technology — ‘between hell and reason’. After 1945, there seemed little reason to trust in humanity’s ability to choose well.

Merleau-Ponty observed in a lecture of 1951 that, more than any previous century, the twentieth century had reminded people how ‘contingent’ their lives were — how at the mercy of historical events and other changes that they could not control. This feeling went on long after the war ended. After the A-bombs were dropped on Hiroshima and Nagasaki, many feared that a Third World War would not be long in coming, this time between the Soviet Union and the United States.

“Superhero movies take away mystery because there’s nothing in the shadows. All is revealed. And that’s not how our relationship to the world is, because, unfortunately, you can know only a fraction. So it gives a false impression of our might.”

Genre fans must be terrible worriers, he continues; prisoners of “an extreme state of anguish” soothed only by narrative certainty. “Superhero films let people put away their fears. But this ‘saving’ is not very realistic. And if you create only objective films that avoid big questions of life, then we just create machines to eat popcorn.”

“Sunset is really about our perception of the world,” shrugs Nemes. “It’s a labyrinth. The audience has to accept confusion as part of the process – and people don’t like that! I have come to understand that it creates major anxiety. But that is the challenge and the promise: to experience the world through the eyes of someone who is not a god. Then you’re not just a popcorn-eating machine, you’re someone for whom this experience can become personal and subjective and meaningful.

Antisemitism has always been a barometer to measure the moral temperature of a civilisation, for almost mystical reasons. The Jew can go unseen. They are hard to distinguish and so can be the threat coming from inside. Today, it’s therefore very alarming. Almost like we’re now past a critical point.”

“For the first time since I left Hungary I found this oppression of having to adapt my discourse to a sort of well-received set of ideas. It’s extraordinary that internet on a voluntary basis creates a new form of totalitarianism. One that is much more dangerous because people think they are free.

“I really have the feeling that a self-assured civilisation such as ours is preparing our own destruction,” he says. “Even Europe at the beginning of the 20th century, this incredible whirlwind of creativity and positivity, was already longing for its own demise.”

What can he say, he grins. He’s from Eastern Europe, fatalism is in his blood, Kafta taught him that while humans struggle to build meaningful things, they are also digging their own graves.

What has actually got Nemes fretful is, it turns out, computers. They’re making it much, much worse. “We take from our brains so much power and give it to machines,” he says. “It’s unprecedented. Likewise the incredible amount of imagery we’re producing and the fact so much is virtual. We are building a sort of narcissistic image of ourselves through social media that means we perceive people as potential angels. There’s an increasing self-righteousness, and a great moral expectation on human beings I don’t think is realistic. Then there’s a backlash when we realise we can’t meet this ethical standard.

“I would love to be wrong, but I really believe that democracy and the internet are not compatible. New technology channels so much of our darkness and we are blind to it. And sometimes the accumulation and spreading of knowledge means people reach a new level of ignorance.”

Recently, he says, he has found himself in situations in which communication was impossible. Where he was speaking to people who couldn’t think freely because they had been enslaved by ideologies fed to them by the web. Who believed themselves individuals while reciting mass rhetoric

Sunset is more than a historical study. It is a warning that sophisticated societies can combust. Actually, it’s a prophecy; Nemes thinks it inevitable that we will follow suit.

“I’ve never been called a white man until recently,” he says. “But now I’m a white guy from eastern Europe who is a Jew. And so I should only speak about such people.

“This is fractioning humanity – and it’s actually reverse racism. It works as racism, but cloaks itself in the beautiful, beautiful dress of tolerance. And that’s extremely dangerous.”

if you get a conservative economist who isn’t a charlatan and crank, you are more or less by definition getting someone with no influence on policymakers. But that’s not the only problem.

But even among conservative economists who didn’t go down that rabbit hole, there has been a moral collapse – a willingness to put political loyalty over professional standards.

the intellectual decadence. In macroeconomics, what began in the 60s and 70s as a usefully challenging critique of Keynesian views went all wrong in the 80s, because the anti-Keynesians refused to reconsider their views when their own models failed the reality test while Keynesian models, with some modification, performed pretty well.

By the time the Great Recession struck, the right-leaning side of the profession had entered a Dark Age, having retrogressed to the point where famous economists trotted out 30s-era fallacies as deep insights.

The second problem with conservative economic thought is that even aside from its complete lack of policy influence, it’s in an advanced state of both intellectual and moral decadence – something that has been obvious for a while, but became utterly clear after the 2008 crisis.

We saw that most recently in the way leading conservative economists raced to endorse ludicrous claims for the efficacy of the Trump tax cuts, then tried to climb down without admitting what they had done. We saw it in the false claims that Obama had presided over a massive expansion of government programs and refusal to admit that he hadn’t, the warnings that Fed policy would cause huge inflation followed by refusal to admit having been wrong, and on and on.

What accounts for this moral decline? I suspect that it’s about a desperate attempt to retain some influence on a party that prefers the likes of Kudlow or Stephen Moore.

no, you don’t see the same thing on the other side. Liberal economists have made plenty of bad predictions – if you never get it wrong, you’re not taking enough risks – but have generally been willing to admit to and learn from mistakes, and have rarely been sycophants to people in power. In this, as in so much else, we’re looking at asymmetric polarization.

And I think that’s true across the board. The left has genuine public intellectuals with actual ideas and at least some real influence; the right does not. News organizations don’t seem to have figured out how to deal with this reality, except by pretending that it doesn’t exist

Am I saying that there are no conservative economists who have maintained their principles? Not at all. But they have no influence, zero, on GOP thinking. So in economics, a news organization trying to represent conservative thought either has to publish people with no constituency or go with the charlatans who actually matter.

the real problem here is that media organizations are looking for unicorns: serious, honest, conservative intellectuals with real influence. Forty or fifty years ago, such people did exist. But now they don’t.

People cumulatively watch more than a billion YouTube hours daily world-wide, a 10-fold increase from 2012

The Journal investigation found YouTube’s recommendations often lead users to channels that feature conspiracy theories, partisan viewpoints and misleading videos, even when those users haven’t shown interest in such content.

When users show a political bias in what they choose to view, YouTube typically recommends videos that echo those biases, often with more-extreme viewpoints.

Such recommendations play into concerns about how social-media sites can amplify extremist voices, sow misinformation and isolate users in “filter bubbles”

Unlike Facebook Inc. and Twitter Inc. sites, where users see content from accounts they choose to follow, YouTube takes an active role in pushing information to users they likely wouldn’t have otherwise seen.

“The editorial policy of these new platforms is to essentially not have one,”

“That sounded great when it was all about free speech and ‘in the marketplace of ideas, only the best ones win.’ But we’re seeing again and again that that’s not what happens. What’s happening instead is the systems are being gamed and people are being gamed.”

YouTube has been tweaking its algorithm since last autumn to surface what its executives call “more authoritative” news source

YouTube last week said it is considering a design change to promote relevant information from credible news sources alongside videos that push conspiracy theories.

After the Journal this week provided examples of how the site still promotes deceptive and divisive videos, YouTube executives said the recommendations were a problem.

YouTube engineered its algorithm several years ago to make the site “sticky”—to recommend videos that keep users staying to watch still more, said current and former YouTube engineers who helped build it. The site earns money selling ads that run before and during videos.

The algorithm doesn’t seek out extreme videos, they said, but looks for clips that data show are already drawing high traffic and keeping people on the site. Those videos often tend to be sensationalist and on the extreme fringe, the engineers said.

There is another way to calculate recommendations, demonstrated by YouTube’s parent, Alphabet Inc.’s Google. It has designed its search-engine algorithms to recommend sources that are authoritative, not just popular.

Google spokeswoman Crystal Dahlen said that Google improved its algorithm last year “to surface more authoritative content, to help prevent the spread of blatantly misleading, low-quality, offensive or downright false information,” adding that it is “working with the YouTube team to help share learnings.”

In recent weeks, it has expanded that change to other news-related queries. Since then, the Journal’s tests show, news searches in YouTube return fewer videos from highly partisan channels.

YouTube’s recommendations became even more effective at keeping people on the site in 2016, when the company began employing an artificial-intelligence technique called a deep neural network that makes connections between videos that humans wouldn’t. The algorithm uses hundreds of signals, YouTube says, but the most important remains what a given user has watched.

Using a deep neural network makes the recommendations more of a black box to engineers than previous techniques,

“We don’t have to think as much,” he said. “We’ll just give it some raw data and let it figure it out.”

To better understand the algorithm, the Journal enlisted former YouTube engineer Guillaume Chaslot, who worked on its recommendation engine, to analyze thousands of YouTube’s recommendations on the most popular news-related queries

Mr. Chaslot created a computer program that simulates the “rabbit hole” users often descend into when surfing the site. In the Journal study, the program collected the top five results to a given search. Next, it gathered the top three recommendations that YouTube promoted once the program clicked on each of those results. Then it gathered the top three recommendations for each of those promoted videos, continuing four clicks from the original search.

The first analysis, of November’s top search terms, showed YouTube frequently led users to divisive and misleading videos. On the 21 news-related searches left after eliminating queries about entertainment, sports and gaming—such as “Trump,” “North Korea” and “bitcoin”—YouTube most frequently recommended these videos:

YouTube’s algorithm tweaks don’t appear to have changed how YouTube recommends videos on its home page. On the home page, the algorithm provides a personalized feed for each logged-in user largely based on what the user has watched.

Repeated tests by the Journal as recently as this week showed the home page often fed far-right or far-left videos to users who watched relatively mainstream news sources, such as Fox News and MSNBC.

Searching some topics and then returning to the home page without doing a new search can produce recommendations that push users toward conspiracy theories even if they seek out just mainstream sources.

After searching for “9/11” last month, then clicking on a single CNN clip about the attacks, and then returning to the home page, the fifth and sixth recommended videos were about claims the U.S. government carried out the attacks. One, titled “Footage Shows Military Plane hitting WTC Tower on 9/11—13 Witnesses React”—had 5.3 million views.

at this point the real discussion in macro, and to a lesser extent in other fields, is taking place in the econoblogosphere. This is true even for research done at official institutions like the IMF and the Fed

How does the econoblogosphere work? It’s a lot like the 17th-century coffee shop culture Tom Standage describes in his lovely book Writing on the Wall. People with shared interests in effect meet in cyberspace (although many of them are, as it happens, also sitting in real coffee shops at the time, as I am now), exchange ideas, write them up, and make those writeups available to others when they think they’re especially interesting.

who are the players in this world? Well, look at any of the various rankings of economics blogs — say, the one at Onalytica. I don’t see any of Brooks’s Thought Leaders there. I see a lot of solid professional economists; a number of equally solid economic journalists; and a few people who don’t fall into standard categories

Does this new, amorphous system work? Yes!

For boys and girls raised in two-parent households, there were only modest differences between the sexes in terms of success at school, and boys tended to earn more than their sisters in early adulthood.

At the same time, the divorce rate for college graduates has declined from 34.8 percent among those born between 1950 and 1955 to 29.9 percent among those born between 1957 and 1964. In contrast, the divorce rate for those without college degrees increased over the same period from 44.3 percent to 50.6 percent.

First, there are irreversible changes in the workplace, particularly the rise of jobs requiring social skills (even STEM jobs) that will continue to make it hard for men who lack those skills.

Men are really going to have to change their act or have big problems. I think of big guys from the cave days, guys who were good at lifting stuff and hunting and the things we got genetically selected out for. During the industrial revolution that wasn’t so bad, but it’s not going to be there anymore.

This vulnerability, in turn, makes boys more susceptible toattention deficit hyperactivity disorder, and conduct disorders as well as the epigenetic mechanisms that can account for the recent widespread increase of these disorders in U.S. culture.

Schore argues that a major factor in rising dysfunction among boys and men in this country is the failure of the United States to provide longer periods of paid parental leave, with the result that many infants are placed in day care when they are six weeks old.

Females consistently score higher on tests of emotional and social intelligence. Sex differences in sociability and social perceptiveness have been shown to have biological origins, with differences appearing in infancy and higher levels of fetal testosterone associated with lower scores on tests of social intelligence.

Second, male children suffer more from restricted or nonexistent parental leave policies and contemporary child care arrangements, as well as from growing up in single-parent households. Advertisement Continue reading the main story

It has been a longstanding objective of right-wing regimes to push women back into traditional gender roles. Is that what’s going on here? Or could it be something less pernicious and more important?