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They also need to hear about the semi-genocidal nature of the Russian attack on Ukraine—not just the extensive torture, murder, and rape of the civilian population, but the kidnapping of thousands of children, and the attempt to wipe out Ukrainian language and culture.

They need to hear how staunchness now, even in the face of nuclear threats, is infinitely better than a large-scale, possibly global war in a decade

Americans and Europeans need to hear about the consequences if Russia were to crush Ukraine; about the invasions and depredations that would surely come next in the Baltic states, and quite likely beyond; about the conclusions a no less ruthless Chinese government would draw; and about how a failure to take a stand here would mean something much bigger and more dangerous in a few years’ time

Americans also need to hear a celebration not only of Ukrainian courage and tenacity, but of their skill.

Modern politicians very rarely speak this way, but they need to try

The opposition to aid to Ukraine is still divided, hampered by its own crankiness and embittered introversion, and undermined daily by Russian barbarity, and no less, the astonishing Julius Streicher–like candor with which its propagandists howl for the blood of innocents.

Ukraine’s struggle for freedom and for its very existence is the struggle of a much larger order, not just in Europe but globally, and indeed of the human spirit.

The situation calls for sound policy, no doubt; it also calls for eloquence that soars. There is an epic speech to be delivered here; let us hope that there is someone who can deliver it.

Recent experiments suggest that XBB paid a steep price for its power to evade immunity. The mutations allow it to escape antibodies by altering the shape of the protein, called spike, that covers its surface. But some of those mutations also make it harder for XBB spike proteins to grab tightly to cells — the first step required for an infection.

That loose grip may have lessened XBB’s advantage against other forms of the virus. In late 2022, it jostled alongside a number of other Omicron subvariants. In Singapore, XBB caused a surge in October, for example, while remaining rare in many other parts of the world.

As XBB multiplied, it continued to mutate into new forms. The earliest samples of XBB.1.5 were isolated in October in New York. The new subvariant gained one crucial mutation, known as F486P.

Yunlong Cao of Peking University and his colleagues tested out XBB.1.5 in dishes of cells, comparing how it fared against earlier forms of XBB. The researchers found that the F486P mutation allowed XBB.1.5 to grab tightly to cells again. But the new subvariant could still evade antibodies as well as earlier forms of XBB.

In Connecticut, for example, Nathan Grubaugh at Yale University and his colleagues found that by mid-December, other Omicron subvariants were falling. Only XBB.1.5 cases were growing. Dr. Grubaugh estimates that it is about 20 percent more transmissible than BQ.1, which had been the dominant form.

How severe XBB.1.5 infections are compared with other forms of the coronavirus is not yet clear. “It’s serious,” Dr. Grubaugh said. “I just don’t necessarily know if it’s really more serious than some of the other Omicron lineages in terms of the overall impact.”

XBB.1.5 has already spread to other countries, and is growing rapidly in Germany, Denmark and elsewhere in Europe

Scientists are already scanning new sequences being uploaded to an international database called GISAID in the hopes of spotting an upgraded version of XBB.1.5. But their job is getting harder because governments are pulling back on sequencing efforts. “Worldwide, sequencing has taken a real hit,” Dr. Peacock said.

The United States, which once lagged behind other nations, has managed to maintain a fairly strong sequencing effort. Without it, Dr. Peacock said, XBB.1.5 might have stayed below the radar for much longer. If XBB.1.5’s next generation is evolving somewhere with little sequencing, it may go undetected for some time to come.

Dr. Lemieux said that paring back on sequencing was a mistake, given how many infections and deaths the virus is still causing. “This is a part of public health,” he said.

Could the West have done more to avert the disaster of the last decade? Its financial leverage over Russia weakened in the early 2000s when rocketing gas and oil prices raised the Russian economy off its knees. Economic sanctions, at least those introduced before 2022, served mainly to foster Russia’s determination to become self-sufficient in every sector of production

Western political diplomatic levers were stronger, but the western powers missed many crucial chances. London should not have become the laundromat for Russian dirty money.

The United States’ leadership has been just as woeful. President Donald Trump liked to schmooze with Putin as if on a boys’ night out rather than pinning him down on points of disagreement.

In his own way, president Joe Biden did just as badly in 2021 by encouraging Ukraine to seek membership of Nato without taking proper precautions – and helping Zelensky take them in time too – against the possible negative Russian reaction

A coarsening of relations between the West and a resurgent Russia was always likely, but western politicians could have moderated the process

In all this, it is neither Trump nor Biden who have shown the least prudence but Putin.

Now, after years of vacillation, the West has something like a systematic policy towards Russia and is supplying Ukraine with some of the military defence equipment it sorely needs and deserves. Better late than never.

Karahan Tepe, and its penis chamber, and everything that inexplicably surrounds the chamber – shrines, cells, altars, megaliths, audience halls et al – is vastly older than anything comparable, and plumbs quite unimaginable depths of time, back before agriculture, probably back before normal pottery, right back to a time when we once thought human ‘civilisation’ was simply impossible.

After all, hunter gatherers – cavemen with flint arrowheads – without regular supplies of grain, without the regular meat and milk of domesticated animals, do not build temple-towns with water systems.

Taken together with its age, complexity, sophistication, and its deep, resonant mysteriousness, and its many sister sites now being unearthed across the Harran Plains – collectively known as the Tas Tepeler, or the ‘stone hills’ – these carved, ochre-red rocks, so silent, brooding, and watchful in the hard whirring breezes of the semi-desert, constitute what might just be the greatest archaeological revelation in the history of humankind.

The solitary Kurdish man, on that summer’s day in 1994, had made an irreversibly profound discovery – which would eventually lead to the penis pillars of Karahan Tepe, and an archaeological anomaly which challenges, time and again, everything we know of human prehistory.

in late 1994 the German archaeologist Klaus Schmidt came to the site of Gobekli Tepe to begin his slow, diligent excavations of its multiple, peculiar, enormous T-stones, which are generally arranged in circles – like the standing stones of Avebury or Stonehenge. Unlike European standing stones, however, the older Turkish megaliths are often intricately carved: with images of local fauna. Sometimes the stones depict cranes, boars, or wildfowl: creatures of the hunt. There are also plenty of leopards, foxes, and vultures. Occasionally these animals are depicted next to human heads.

The obsession with the penis is obvious – more so, now we have the benefit of hindsight provided by Karahan Tepe and the other sites. Very few representations of women have emerged from the Tas Tepeler so far; there is one obscene caricature of a woman perhaps giving birth. Whatever inspired these temple-towns it was a not a benign matriarchal culture. Quite the opposite, maybe.

Urfa man now has a silent hall of his own in one of Turkey’s greatest archaeological galleries. More importantly, we can now see that Urfa man has the same body stance of the T-shaped man-pillars at Gobekli (and in many of the Tas Tepeler): his arms are in front of him, protecting his penis

‘Gobekli Tepe upends our view of human history. We always thought that agriculture came first, then civilisation: farming, pottery, social hierarchies. But here it is reversed, it seems the ritual centre came first, then when enough hunter gathering people collected to worship – or so I believe – they realised they had to feed people. Which means farming.’ He waved at the surrounding hills, ‘It is no coincidence that in these same hills in the Fertile Crescent men and women first domesticated the local wild einkorn grass, becoming wheat, and they also first domesticated pigs, cows and sheep. This is the place where Homo sapiens went from plucking the fruit from the tree, to toiling and sowing the ground.’

People were already speculating that – if you see the Garden of Eden mythos as an allegory of the Neolithic Revolution: i.e. our fall from the relative ease of hunter-gathering to the relative hardships of farming (and life did get harder when we first started farming, as we worked longer hours, and caught diseases from domesticated animals), then Gobekli Tepe and its environs is probably the place where this happened

‘I believe Gobekli Tepe is a temple in Eden’. It’s a quote I reused, to some controversy, because people took Klaus literally. But he did not mean it literally. He meant it allegorically.

This number is so large it is hard to take in. For comparison the Great Pyramid at Giza is 4,500 years old. Stonehenge is 5,000 years old. The Cairn de Barnenez tomb-complex in Brittany, perhaps the oldest standing structure in Europe, could be up to 7,000 years old.

I do definitely know this: some time in 8000 BC the creators of Gobekli Tepe buried their great structures under tons of rubble. They entombed it. We can speculate why. Did they feel guilt? Did they need to propitiate an angry God? Or just want to hide it?’ Klaus was also fairly sure on one other thing. ‘Gobekli Tepe is unique.’

These days Gobekli Tepe is not just a famous archaeological site, it is a Unesco World-Heritage-listed tourist honeypot which can generate a million visitors a year. It is all enclosed by a futuristic hi-tech steel-and-plastic marquee (no casual wandering around taking photos of the stones and workers

Necmi shows me the gleaming museum built to house the greatest finds from the region: including a 11,000 year old statue, retrieved from beneath the centre of Sanliurfa itself, and perhaps the world’s oldest life size carved human figure

‘We have found no homes, no human remains. Where is everyone, did they gather for festivals, then disperse? As for their religion, I have no real idea, perhaps Gobekli Tepe was a place of excarnation, for exposing the bones of the dead to be consumed by vultures, so the bodies have all gone

Aslan tells me how archaeologists at Gobekli have also, more recently, found tantalising evidence of alcohol: huge troughs with the chemical residue of fermentation, indicating mighty ritual feasts, maybe.

he explains how scientists at Karahan Tepe, as well as Gobekli Tepe, have now found evidence of homes.

The builders lived here. They ate their roasted game here. They slept here. And they used, it seems, a primitive but poetic form of pottery, shaped from polished stone. They possibly did elaborate manhood rituals in the Karahan Tepe penis chambe

Yet still we have no sign at all of contemporary agriculture; they were, it still appears, hunter gatherers, but of unnerving sophistication.

Another unnerving oddity is the curious number of carvings which show people with six fingers. Is this symbolic, or an actual deformity? Perhaps the mark of a strange tribe?

Karahan Tepe is stupefyingly big. ‘So far,’ he says, ‘We have dug up maybe 1 per cent of the site’ – and it is already impressive. I ask him how many pillars – T stones – might be buried here. He casually points at a rectangular rock peering above the dry grass. ‘That’s probably another megalith right there, waiting to be excavated. I reckon there are probably thousands more of them, all around us. We are only at the beginning. And there could be dozens more Tas Tepeler we have not yet found, spread over hundreds of kilometres.’

Karahan too was definitely and purposely buried. That is the reason Necmi and his team were able to unearth the penis pillars so quickly, all they had to do was scoop away the backfill, exposing the phallic pillars, sculpted from living rock.

the most remarkable answer of all, and it is this: archaeologists in southeastern Turkey are, at this moment, digging up a wild, grand, artistically coherent, implausibly strange, hitherto-unknown-to-us religious civilisation, which has been buried in Mesopotamia for ten thousand years. And it was all buried deliberately.

What happened in 2012, when the oldest Gen-Z babies were in their middle teens? That was the year Facebook acquired Instagram and young people flocked to the latter site. It was also “the beginning of the selfie era.”

Mr. Haidt’s research, confirmed by that of others, shows that depression rates started to rise “all of a sudden” around 2013, “especially for teen girls,” but “it’s only Gen Z, not the older generations.” If you’d stopped collecting data in 2011, he says, you’d see little change from previous years. “By 2015 it’s an epidemic.” (His data are available in an open-source document.)

Mr. Haidt imagines “literally launching our children into outer space” and letting their bodies grow there: “They would come out deformed and broken. Their limbs wouldn’t be right. You can’t physically grow up in outer space. Human bodies can’t do that.” Yet “we basically do that to them socially. We launched them into outer space around the year 2012,” he says, “and then we expect that they will grow up normally without having normal human experiences.”

Social media and selfies hit a generation that had led an overprotected childhood, in which the age at which children were allowed outside on their own by parents had risen from the norm of previous generations, 7 or 8, to between 10 and 12.

That meant the first social-media generation was one of “weakened kids” who “hadn’t practiced the skills of adulthood in a low-stakes environment” with other children. They were deprived of “the normal toughening, the normal strengthening, the normal anti-fragility.

Now, their childhood “is largely just through the phone. They no longer even hang out together.” Teenagers even drive less than earlier generations did.

Mr. Haidt especially worries about girls. By 2020 more than 25% of female teenagers had “a major depression.” The comparable number for boys was just under 9%.

The comparable numbers for millennials at the same age registered at half the Gen-Z rate: about 13% for girls and 5% for boys. “Kids are on their devices all the time,”

Most girls, by contrast, are drawn to “visual platforms,” Instagram and TikTok in particular. “Those are about display and performance. You post your perfect life, and then you flip through the photos of other girls who have a more perfect life, and you feel depressed.

He calls this phenomenon “compare and despair” and says: “It seems social because you’re communicating with people. But it’s performative. You don’t actually get social relationships. You get weak, fake social links.”

Mr. Haidt says he has no antipathy toward the young, and he calls millennials “amazing.”

To illustrate his point about Gen Z, Mr. Haidt challenges people to name young people today who are “really changing the world, who are doing big things that have an impact beyond their closed ecosystem.”

He can think of only two, neither of them American: Greta Thunberg, 19, the Swedish climate militant, and Malala Yousafzai, 25, the Pakistani advocate for female education

I’m predicting that they will be less effective, less impactful, than previous generations.” Why? “You should always keep your eye on whether people are in ‘discover mode’ or ‘defend mode.’ ” In the former mode, you seize opportunities to be creative. In the latter, “you’re not creative, you’re not future-thinking, you’re focused on threats in the present.”

University students who matriculated starting in 2014 or so have arrived on campus in defend mode: “Here they are in the safest, most welcoming, most inclusive, most antiracist places on the planet, but many of them were acting like they were entering some sort of dystopian, threatening, immoral world.”

56% of liberal women 18 to 29 responded affirmatively to the question: Has a doctor or other healthcare provider ever told you that you have a mental health condition? “Some of that,” Mr. Haidt says, “has to be just self-presentational,” meaning imagined.

This new ideology . . . valorizes victimhood. And if your sub-community motivates you to say you have an anxiety disorder, how is this going to affect you for the rest of your life?” He answers his own question: “You’re not going to take chances, you’re going to ask for accommodations, you’re going to play it safe, you’re not going to swing for the fences, you’re not going to start your own company.”

Whereas millennial women are doing well, “Gen-Z women, because they’re so anxious, are going to be less successful than Gen-Z men—and that’s saying a lot, because Gen-Z men are messed up, too.”

The problem, he says, is distinct to the U.S. and other English-speaking developed countries: “You don’t find it as much in Europe, and hardly at all in Asia.” Ideas that are “nurtured around American issues of race and gender spread instantly to the U.K. and Canada. But they don’t necessarily spread to France and Germany, China and Japan.”

something I hear from a lot of managers, that it’s very difficult to supervise their Gen-Z employees, that it’s very difficult to give them feedback.” That makes it hard for them to advance professionally by learning to do their jobs better.

“this could severely damage American capitalism.” When managers are “afraid to speak up honestly because they’ll be shamed on Twitter or Slack, then that organization becomes stupid.” Mr. Haidt says he’s “seen a lot of this, beginning in American universities in 2015. They all got stupid in the same way. They all implemented policies that backfire.”

Mr. Haidt, who describes himself as “a classical liberal like John Stuart Mill,” also laments the impact of social media on political discourse

“Social media is incompatible with liberal democracy because it has moved conversation, and interaction, into the center of the Colosseum. We’re not there to talk to each other. We’re there to perform” before spectators who “want blood.”

Is there a solution? “I’d raise the age of Internet adulthood to 16,” he says—“and enforce it.”

By contrast, “life went onto phone-based apps 10 years ago, and the protections we have for children are zero, absolutely zero.” The damage to Generation Z from social media “so vastly exceeds the damage from Covid that we’re going to have to act.”

Gen Z, he says, “is not in denial. They recognize that this app-based life is really bad for them.” He reports that they wish they had childhoods more like those of their parents, in which they could play outside and have adventur

For researchers concerned with more immediate AI risks, such as bias, disinformation and job displacement, the voices of doom are a distraction. Professor Brent Mittelstadt, director of research at the Oxford Internet Institute, said the warnings of “the existential risks community” are overblown. “The problem is you can’t disprove the future scenarios . . . in the same way you can’t disprove science fiction.” Emily Bender, a professor of linguistics at the University of Washington, believes the doomsters are propagating “unhinged AI hype, helping those building this stuff sell it”.

Those urging us to stop, pause and think again have a useful card up our sleeves: the people building these models do not fully understand them. AI like ChatGPT is made up of huge neural networks that can defy their creators by coming up with “emergent properties”.

Google’s PaLM model started translating Bengali despite not being trained to do so

Let’s not forget the excitement, because that is also part of Moloch, driving us forward. The lure of AI’s promises for humanity has been hinted at by DeepMind’s AlphaFold breakthrough, which predicted the 3D structures of nearly all the proteins known to humanity.

Noam Shazeer, a former Google engineer credited with setting large language models such as ChatGPT on their present path, was asked by The Sunday Times how the models worked. He replied: “I don’t think anybody really understands how they work, just like nobody really understands how the brain works. It’s pretty much alchemy.”

The industry is turning itself to understanding what has been created, but some predict it will take years, decades even.

Alex Heath, deputy editor of The Verge, who recently attended an AI conference in San Francisco. “It’s clear the people working on generative AI are uneasy about the worst-case scenario of it destroying us all. These fears are much more pronounced in private than they are in public.” One figure building an AI product “said over lunch with a straight face that he is savoring the time before he is killed by AI”.

Greg Brockman, co-founder of OpenAI, told the TED2023 conference this week: “We hear from people who are excited, we hear from people who are concerned. We hear from people who feel both those emotions at once. And, honestly, that’s how we feel.”

A CBS interviewer challenged Sundar Pichai, Google’s chief executive, this week: “You don’t fully understand how it works, and yet you’ve turned it loose on society?

In 2020 there wasn’t a single drug in clinical trials developed using an AI-first approach. Today there are 18

Consider this from Bill Gates last month: “I think in the next five to ten years, AI-driven software will finally deliver on the promise of revolutionising the way people teach and learn.”

If the industry is aware of the risks, is it doing enough to mitigate them? Microsoft recently cut its ethics team, and researchers building AI outnumber those focused on safety by 30-to-1,

The concentration of AI power, which worries so many, also presents an opportunity to more easily develop some global rules. But there is little agreement on direction. Europe is proposing a centrally defined, top-down approach. Britain wants an innovation-friendly environment where rules are defined by each industry regulator. The US commerce department is consulting on whether risky AI models should be certified. China is proposing strict controls on generative AI that could upend social order.

Part of the drive to act now is to ensure we learn the lessons of social media. Twenty years after creating it, we are trying to put it back in a legal straitjacket after learning that its algorithms understand us only too well. “Social media was the first contact between AI and humanity, and humanity lost,” Yuval Harari, the Sapiens author,

Others point to bioethics, especially international agreements on human cloning. Tegmark said last week: “You could make so much money on human cloning. Why aren’t we doing it? Because biologists thought hard about this and felt this is way too risky. They got together in the Seventies and decided, let’s not do this because it’s too unpredictable. We could lose control over what happens to our species. So they paused.” Even China signed up.

One voice urging calm is Yann LeCun, Meta’s chief AI scientist. He has labelled ChatGPT a “flashy demo” and “not a particularly interesting scientific advance”. He tweeted: “A GPT-4-powered robot couldn’t clear up the dinner table and fill up the dishwasher, which any ten-year-old can do. And it couldn’t drive a car, which any 18-year-old can learn to do in 20 hours of practice. We’re still missing something big for human-level AI.” If this is sour grapes and he’s wrong, Moloch already has us in its thrall.

guided by a fascination with the wayward paths to fame, he half-unwittingly sows doubt about the justice of the American rise to artistic leadership in the postwar era. In his erudite account, artistic success owes little to vision and purpose, more to self-promotion, but most to unanticipated adoption by bigger systems with other aims, principally oriented toward money, political advantage, or commercial churn

For the greatness and inevitability of artistic consecration, Menand substitutes the arbitrary confluences of forces at any given moment.

The curriculum runs chapter by chapter through George Kennan, George Orwell, Jean-Paul Sartre, Hannah Arendt, Jackson Pollock, Lionel Trilling, Allen Ginsberg, Claude Lévi-Strauss, Robert Rauschenberg and John Cage, Elvis and the Beatles, Isaiah Berlin, James Baldwin, Jack Kerouac, Andy Warhol, Susan Sontag, and Pauline Kael. Each biography opens a door to a school or trend of work

Menand’s is not a “great man” view of history, because no one seems particularly great. One gets a feeling for Sartre as a person, a limited knowledge of how Sartre made Being and Nothingness, and a vivid sense of how the book made Sartre a celebrity. Then one learns how a troupe of others came along and rode his success like a sled.

Menand zooms in and out between individual egomaniacs and the milieus that facilitated their ascent and profited from their publicity.

group biographies, in miniature, of the existentialists, the Beats, the action painters, the Black Mountain School, the British Invasion, the pop artists, and many coteries more—are enchanting singly but demoralizing as they pile up

All of these enterprises look like hives of social insects, not selfless quests for truth or beauty. Menand is a world-class entomologist: He can name every indistinguishable drone, knows who had an oversize mandible, who lost a leg, who carried the best crumbs.

From this vantage, the monuments really are just anthills.

Menand is truly one of the great explainers. He quotes approvingly a lesson taken by Lionel Trilling from his editor Elliot Cohen: “No idea was so difficult and complex but that it could be expressed in a way that would make it understood by anyone to whom it might conceivably be of interest.”

The underlying theory of the book rests on a picture of what makes for “cultural winners,” works and ideas that Menand defines as

He is accurate, he is insightful, and he is not a dumber-downer

Menand’s account of each is an abbreviated tour de force. His explanations work at all levels: interpretation for scholars, review for general readers, introductions for neophytes. Where another writer would take 20 pages to tell us why someone or something mattered historically, Menand does it in two.

goods or styles that maintain market share through “generational” taste shifts—that is, through all the “the king is dead; long live the king” moments that mark the phases of cultural history for people living through it.

Menand’s recountings are less concerned with the changing meanings of individual works than with their successive adoptions and co-optations, in defiance of depth and meaning. It is a process of “winning” often based on cults of personality, indifference to complex origins, and the fortune or misfortune of timing

Menand is notably excellent on how commercial, regulatory, and technological changes determined which kinds of artwork made it to the public. His analysis helps demystify trends in commercial forms like film and pop music, especially when they otherwise seemed to run against the grain of pure profit

Often Menand’s point seems to be that the culture’s reigning talkers and salespeople and debaters need to conjure figures to venerate and attack (in ceaseless alternation) for short-range purposes of attention and competition. Any given work—1984, say, or Bonnie and Clyde—isn’t much of anything until it becomes a counter in other people’s games.

The central question of this period in culture might be whether U.S. artists lived up to expectations

In 1945, Europe was in ruins. America was rich and productive and dictated the terms of the postwar economic and political order. Certainly the U.S. had the power to pretend to cultural glory, too. But was it a pretense, or did Americans really continue and exceed the prewar triumphs of European modernism?

Most histories of the arts after 1945 assume that the greatest American successes deserved their fame.

The thrust of many of Menand’s retellings is that “in the business of cultural exchange, misprision is often the key to transmission.” Fame comes through misreadings, fantasies, unintended resonances, charisma, and publicity.

Menand’s book bequeaths the sense that the last laugh may truly have been on the self-seriousness of a whole historical period, one that treated its most publicized and successful arts figures far too generously, giving them too much credit for depth and vision, while missing the cynical forces by which they’d been buoyed up and marketed

“Foreign film” in America in the ’50s and ’60s—when independent art cinemas emerged, showing imports such as work by Ingmar Bergman and the French New Wave—proves to have been energized by a successful federal-government antitrust action against the monopolistic Hollywood studios

The idea of a “culture industry”

is used unironically by Menand to name the vastly scaled-up production and consumption of all artistic experience. “The culture industries, as they expanded, absorbed and commercialized independent and offbeat culture-makers, and the university, as it expanded, swallowed up the worlds of creative writing and dissident political opinion.”

With his eye on this process, we miss out on artists and thinkers who dug deep and stayed home, who produced as hermits or eccentrics or introverted students of their art

Where did rock ’n’ roll come from?” Menand wonders. He answers that it was “the by-product of a number of unrelated developments in the American music business” that redirected sales to teenagers, and also the result of new radio-station competition, the partial racial desegregation of the music charts, and the arrival of 200-disc jukeboxes

I can imagine The Free World leaving my hypothetical college senior, denizen of the bleak attention economy of the 21st century, feeling liberated to discover that culture was no better—no more committed to a quest for what is true, noble, lasting, and beautiful—in the world of the Baby Boomers and beaming grandparents.

The book is so masterful, and exhibits such brilliant writing and exhaustive research, that I wonder whether Menand could truly have intended where his history of the postwar era landed me. I learned so much, and ended up caring so much les

he carefully links the ascendancy of these artists to a conveniently timed revolution in their industry. “They needed critics … who could understand and write about their work, dealers who would show it, and curators and collectors who would buy it.” Put simply, they needed an art world that would cater to their wants. America provided one.

The New Yorker, a publication, Menand notes, that catered to well-educated, culturally insecure folk “eager not to like the wrong things, or to like the right things for the wrong reasons.”

It’s why the “bad war” of Vietnam was only escaped at the cost of betraying the South Vietnamese and making a deal with yet another monster in Beijing.

The alternative is a form of argument in which essential aspects of the world, being inconvenient to moral absolutism, simply disappear.

A “realist” foreign policy can slide from describing power to excusing depredations.

But seeing statecraft as a tragic balancing of evils is still essential, especially amid the kind of moral fervor that attends a conflict like Israel’s war in Gaza.

But in active controversies the tragic vision can seem like a cold way of looking at the world. Lean into it too hard, and you get accused of ignoring injustice or recapitulating the indifference that gave cover to past atrocities.

The difficulty is that liberal “freedom” is on offer almost nowhere in the Middle East, certainly not in Gaza under Hamas’s rule, and the most challenging “otherness of beliefs” in this situation are the beliefs that motivated the massacres of Oct. 7.

a hype around Israeli moral failures — it's not enough for a war that yields so many casualties to be unjust, if it’s wrong it must be genocide — that ends up suppressing the harsh implications of a simple call for peace.

A representative passage, from Pankaj Mishra in The London Review of Books, describes many protesters as “motivated by the simple wish to uphold the ideals that seemed so universally desirable after 1945: respect for freedom, tolerance for the otherness of beliefs and ways of life; solidarity with human suffering; and a sense of moral responsibility for the weak and persecuted.”

No doubt many campus protesters have these motivations.

The alternative articulated by, for instance, Mitt Romney — “We stand by allies, we don’t second-guess them” — is not a serious policy for a hegemon balancing its global obligations

For example, reading the apologia for pro-Palestinian protests from certain left-wing intellectuals, you have a sense of both elision and exaggeration

seem untroubled by this fact, and perfectly comfortable with supporting not just peaceful negotiation but a revolutionary struggle led by Islamist fanatics.

Which yields the moral dilemma the protests don’t acknowledge: Ending the war on the terms they want could grant a major strategic victory to the regional alliance dedicated to the murder of Israelis and their expulsion from the Middle East.

Maybe the Gaza war is unjust enough, and Israeli goals unachievable enough, that there’s no alternative to vindicating Hamas’s blood-soaked strategy

you have to be honest about what you’re endorsing: a brutal weighing-out of evils, not any sort of triumph for “universally desirable” ideals.

Then a similar point applies to supporters of the Israeli war, for whom moral considerations — the evil of Hamas, the historical suffering of the Jewish people, the special American relationship with Israel — are invoked as an argument-ender in an inflexible way

We are constantly urged to “stand with Israel” when it’s unclear if Israel knows what it’s doing.

Joe Biden’s administration is chastised for betrayal when it tries to influence Israel’s warmaking, even though the Israeli government’s decisions before and since Oct. 7 do not inspire great confidence.

Biden’s specific attempts to micromanage the conflict may be misguided or hamfisted

But it’s not misguided for America, an imperium dealing with multiplying threats, to decline to write a blank check for a war being waged without a clear plan for victory or for peace.

Another difficulty is that some instigators of the protests

In each case, you have a desire that mirrors the impulse of the left-wing intellectuals — to make foreign policy easy by condensing everything to a single moral judgment. But the problems of the world cannot be so easily reduced.

Being cold-eyed and tragic-minded does not mean abandoning morality. But it means recognizing that often nobody is simply right, no single approach is morally obvious, and no strategy is clean.

In “Djadja,” her breakout song from 2018 that has become an anthem of female empowerment, she calls out a man who lies about sleeping with her by singing “I’m not your catin,” using a centuries-old French term for prostitute. It has been streamed about one billion times.

Ms. Nakamura has encountered criticism of her music before in France, where expectations of assimilation are high. Some on the right complain she has become French but shown more interest in her African roots or her American role models.

She responded to her critics on French television in 2019, saying of her music, “In the end, it speaks to everyone.”“You don’t understand,” she added. “But you sing.

The Olympics furor appears unlikely to subside soon. As a commentator on France Inter radio put it: “France has no oil, but we do have debates. In fact, we almost deserve a gold medal for that.”

Anecdotally, it seems like everybody knows someone who has dropped out of the mainstream, vowing to vote for the AfD or talking about emigrating

What has started to dawn on us in recent months, and what the meeting in Potsdam laid bare, is that the far right is not about having horrific ideas — it is about enacting horrific ideas.

Germany’s far-right adherents really mean it. With funding, support and a very real chance of winning federal states this year, they are closer to power than they have ever been in the nearly 75-year history of post-Nazi Germany.

In his recent book “Triggerpunkte,” or “Trigger Points,” Steffen Mau, a sociologist at Humboldt University in Berlin, rejects the notion that German society is polarized neatly in two. In Germany, he argues, divisions instead run through several areas such as climate, migration and social justice. You can be moved by some issues, indifferent to others

In recent months, those motivated by their opposition to migration or climate policies were the most vocal and visible. Now those who care about democracy, minority rights and the rule of law have reached their trigger point, too.

Researchers call this effect “the liar’s dividend,” and politicians have already tried to cast off unfavorable clips as AI-generated: Last month, Donald Trump falsely claimed that an attack ad had used AI to make him look bad.

“Deepfake” could become the “fake news” of 2024, an infrequent but genuine phenomenon that gets co-opted as a means of discrediting the truth

Steve Bannon’s infamous assertion that the way to discredit the media is to “flood the zone with shit.”

AI is less likely to create new dynamics than to amplify existing ones. Presidential campaigns, with their bottomless coffers and sprawling staff, have long had the ability to target specific groups of voters with tailored messaging

They might have thousands of data points about who you are, obtained by gathering information from public records, social-media profiles, and commercial brokers

“It is now so cheap to engage in this mass personalization,” Laura Edelson, a computer-science professor at Northeastern University who studies misinformation and disinformation, told me. “It’s going to make this content easier to create, cheaper to create, and put more communities within the reach of it.”

That sheer ease could overwhelm democracies’ already-vulnerable election infrastructure. Local- and state-election workers have been under attack since 2020, and AI could make things worse.

Those officials have also expressed the worry, he said, that generative AI will turbocharge the harassment they face, by making the act of writing and sending hate mail virtually effortless. (The consequences may be particularly severe for women.)

past attacks—most notably the Russian hack of John Podesta’s email, in 2016—have wrought utter havoc. But now pretty much anyone—whatever language they speak and whatever their writing ability—can send out hundreds of phishing emails in fluent English prose. “The cybersecurity implications of AI for elections and electoral integrity probably aren’t getting nearly the focus that they should,”

Just last week, AI-generated audio surfaced of one Harlem politician criticizing another. New York City has perhaps the most robust local-news ecosystem of any city in America, but elsewhere, in communities without the media scrutiny and fact-checking apparatuses that exist at the national level, audio like this could cause greater chaos.

In countries that speak languages with less online text for LLMs to gobble up, AI tools may be less sophisticated. But those same countries are likely the ones where tech platforms will pay the least attention to the spread of deepfakes and other disinformation, Edelson told me. India, Russia, the U.S., the EU—this is where platforms will focus. “Everything else”—Namibia, Uzbekistan, Uruguay—“is going to be an afterthought,”

Most of us tend to fret about the potential fake video that deceives half of the nation, not about the flood of FOIA requests already burying election officials. If there is a cost to that way of thinking, the world may pay it this year at the polls.

a 2022 Reuters investigation found that some American clinics were quite aggressive with treatment: None of the 18 U.S. clinics that Reuters looked at performed long assessments on their patients, and some prescribed puberty blockers on the first visit.

As Cass writes in her report, “The toxicity of the debate is exceptional.” She continues, “There are few other areas of health care where professionals are so afraid to openly discuss their views, where people are vilified on social media and where name-calling echoes the worst bullying behavior.”

The report’s greatest strength is its epistemic humility. Cass is continually asking, “What do we really know?” She is carefully examining the various studies — which are high quality, which are not. She is down in the academic weeds.

he notes that the quality of the research in this field is poor. The current treatments are “built on shaky foundations,” she writes in The BMJ. Practitioners have raced ahead with therapies when we don’t know what the effects will be. As Cass tells The BMJ, “I can’t think of another area of pediatric care where we give young people a potentially irreversible treatment and have no idea what happens to them in adulthood.”

Our natural human tendency is to be too confident in our knowledge, too quick to ignore contrary evidence. But these days it has become acceptable to luxuriate in those epistemic shortcomings, not to struggle against them. See, for example, the modern Republican Party.

In 1877 a British philosopher and mathematician named William Kingdon Clifford published an essay called “The Ethics of Belief.” In it he argued that if a shipowner ignored evidence that his craft had problems and sent the ship to sea having convinced himself it was safe, then of course we would blame him if the ship went down and all aboard were lost. To have a belief is to bear responsibility, and one thus has a moral responsibility to dig arduously into the evidence, avoid ideological thinking and take into account self-serving biases.

“It is wrong always, everywhere, and for anyone, to believe anything upon insufficient evidence,” Clifford wrote

A belief, he continued, is a public possession. If too many people believe things without evidence, “the danger to society is not merely that it should believe wrong things, though that is great enough; but that it should become credulous, and lose the habit of testing things and inquiring into them; for then it must sink back into savagery.”

Since the Trump years, this habit of not consulting the evidence has become the underlying crisis in so many realms. People segregate into intellectually cohesive teams, which are always dumber than intellectually diverse teams. Issues are settled by intimidation, not evidence

her core conclusion is this: “For most young people, a medical pathway will not be the best way to manage their gender-related distress.” She realizes that this conclusion will not please many of the young people she has come to know, but this is where the evidence has taken her.

She writes in her report, “The option to provide masculinizing/feminizing hormones from age 16 is available, but the review would recommend extreme caution.

Ordinary people do not fret over the reality of tables or chairs or billiard balls. They do, however, wonder if ideas like freedom and justice are merely fantasies. Kant’s main goal was to show they are not.

In fact Kant was driven by a question that still plagues us: Are ideas like freedom and justice utopian daydreams, or are they more substantial? Their reality can’t be proven like that of material objects, for those ideas make entirely different claims on us — and some people are completely impervious to their claims.

Could philosophy show that acting morally, if not particularly common, is at least possible?

Kant always emphasized the limits of our knowledge, and none of us know if we would crumble when faced with death or torture. Most of us probably would. But all of us know what we should do in such a case, and we know that we could.

This experiment shows we are radically free. Not pleasure but justice can move human beings to deeds that overcome the deepest of animal desires, the love of life.

We want to determine the world, not only to be determined by it. We are born and we die as part of nature, but we feel most alive when we go beyond it: To be human is to refuse to accept the world we are given.

At the heart of Kant’s metaphysics stands the difference between the way the world is and the way the world ought to be.

But if we long, in our best moments, for the dignity of freedom and justice, Kant’s example has political consequences. It’s no surprise he thought the French Revolution confirmed our hopes for moral progress — unlike the followers of his predecessor David Hum

who thought it was dangerous to stray from tradition and habit.

This provides an answer to contemporary critics whose reading of Kant’s work focuses on the ways in which it violates our understanding of racism and sexism. Some of his remarks are undeniably offensive to 21st-century ears. But it’s fatal to forget that his work gave us the tools to fight racism and sexism, by providing the metaphysical basis of every claim to human rights.

Kant argued that each human being must be treated as an end and not as a means — which is why he called colonialism “evil” and congratulated the Chinese and Japanese for denying entry to European invaders. Contemporary dismissals of Enlightenment thinkers forget that those thinkers invented the concept of Eurocentrism, and urged their readers to consider the world from non-European perspectives

At a time when the advice to “be realistic” is best translated as the advice to decrease your expectations, Kant’s work asks deep questions about what reality is

He insisted that when we think morally, we should abstract from the cultural differences that divide us and recognize the potential human dignity in every human being.

This requires the use of our reason. Contrary to trendy views that see reason as an instrument of domination, Kant saw reason’s potential as a tool for liberation.

Should we discard Kant’s commitment to universalism because he did not fully realize it himself — or rather celebrate the fact that we can make moral progress, an idea which Kant would wholeheartedly applaud?

In Germany, it’s now common to hear that the Enlightenment was at very best ambivalent: While it may have been an age of reason, it was also an age of slavery and colonialism.

many contemporary intellectuals from formerly colonized countries reject those arguments. Thinkers like the Ghanaian Ato Sekyi-Otu, the Nigerian Olufemi Taiwo, the Chilean Carlos Peña, the Brazilian Francisco Bosco or the Indian Benjamin Zachariah are hardly inclined to renounce Enlightenment ideas as Eurocentric.

The problem with ideas like universal human rights is not that they come from Europe, but that they were not realized outside of it. Perhaps we should take a lesson from the Enlightenment and listen to non-Western standpoints?

In other words, the cultural crackup of the last few months only appears to be part of an international conflict. It is, in fact, resolutely German. What is really being fought over here is a hazy, transcendent national concept that, since Oct. 7, has overtaken more firmly constitutional principles of free expression and free association.

The tensions have been building since at least 2019, when the federal Parliament adopted a resolution designating the movement calling for a boycott of Israel as antisemitic, and urging local governments and “public stakeholders” not to fund organizations or individuals that support it. That makes a big difference here, since so many artists, writers and musicians receive generous government aid. The resolution, though nonbinding, led some cultural institutions to rescind invitations to critics of Israeli policy, and many more to take a hesitant approach.

“People in cultural institutions are risk-averse,” said Tobias Haberkorn, who edits the Berlin Review, a new literary publication. “So if they have to decide, ‘Am I going to invite this or that artist with a Middle Eastern background, or not?’ I can very well see them not inviting them. Just to avoid the potential hassle.”

Since Oct. 7, accusations of antisemitism have flown much more broadly. Some are merited. Many others are dubious. Quite a number of those accused of antisemitism have been Jewish, such as Gessen.

“There are many Jewish perspectives, and that is not being honored here in a country where the history cannot be excused,” said Peaches, who is also Jewish. “For any progressive Jewish person who is thinking about what is going on, and understanding the history of what is going on, to be called antisemitic — by Germans — is ridiculous. Never did I think in 2024 that I would be thinking about that.”

Yet it’s worth pointing out how few of these accusations revolve around cultural production. It is rare for Berlin’s theaters or festivals to cancel someone for what they actually sing or paint or film

What gets you now are statements, posts, likes, signatures: the imperatives of social media, which are swallowing culture wholesale. Once debates like this would have played out in Germany’s elite press, where intellectuals clashed over the country’s moral responsibility to the past. Today the national papers, and the institutions too, are playing catch-up to Ruhrbarone, a small website from the provincial city of Bochum that took down Anderson and many others.

Special effects software can give your music all sorts of subtle vibes. For $299, for instance, you can make your song sound as though it was recorded in Sound City Studios in Los Angeles, on the $20,000 vintage microphones with the $100,000 mixing console that recorded Fleetwood Mac and Nirvana. For $259 you can simulate the Beatles’ Abbey Road Studios

In the past, when you assembled all the tracks for a song, it would have to be mixed and mastered in a studio by a sound engineer adjusting the levels. Now an app will do it for you.

Now, all you need to do is get the files uploaded to streaming services. If you are signed with a label, they will do that for you, but you don’t need a record deal to do that. There are companies such as DistroKid that act as postmen: for £17.99 a year, you can ensure that the song you created in your bedroom is available on multiple streaming platforms.

Some artists thrive on social media. It suits lively, quirky performers like Ryder, and artists who want to experiment with different genres. Mxmtoon, a 23-year-old American YouTuber, singer-songwriter and ukulele player, is also a streamer on Twitch, a platform on which people watch others playing online games, has published graphic novels and made a podcast. Maia — the artist’s name — describes mxmtoon as “a multi-hyphenated project”.

More traditional musicians struggle with some aspects of tech. “We get together,” says Sital-Singh of his contemporaries in the business, “and have a little moan about how everyone’s telling us to do TikTok and we can’t bring ourselves to dance and we feel old and decrepit.”

Even digital natives struggle sometimes: “I already have nostalgia for a simpler past, even though I’m 23,” says Maia. “It’s exciting but it does put so much pressure on a normal individual to be an entrepreneur to advertise their own personal brand.”

Journalists, regrettably, no longer have the power they once did. What matters these days is social media. The A&R (artists and repertoire) people at record companies who would once have hung out in basement clubs scouting for new talent now sit in meetings examining the data on artists’ social media performance.

Now that the whole world’s music is available all over the world at the click of a play button, there’s a greater diversity among top-selling artists.

People making videos of themselves performing or dancing to the song on TikTok helped propel it to the stratosphere. It has been streamed a billion times. Sethi now plays to packed venues in America and Europe; last year, he performed at Coachella, America’s Glastonbury. “Without digital technology I would be a south Asian indy musician, working on the fringes of Bollywood,” he says from his home in New York.

For musicians, it’s more ambiguous. Because the costs of making music are lower, anybody with ambition can have a go. Many more people, as a result, are getting into the music business. According to PPL, the organisation which distributes money to music performers and rights-holders, the number of registered artists has risen from 61,310, when the industry was at its nadir, to 165,039 last year.

That makes the business fiercely competitive. As Will Page, former chief economist at Spotify and author of Tarzan Economics, points out, around 100,000 tracks are being uploaded on to Spotify every day: that’s more than were released in an entire calendar year in the 1980s

That has cemented the power of the record companies. When the digital revolution started, it was widely expected that record labels would cease to exist, and be replaced by a model in which everybody promoted and distributed their own music. That’s not what has happened: because it’s so difficult to get noticed, embryonic stars need record labels to promote them.

A label invests in the production of the music, the styling of the band, video content, interviews, touring and the crucial business of getting a song on a streaming service’s playlist that suggests the song to listeners to suit their tastes. Artists that are signed with major labels get paid more, per stream, than those that aren’t.

Three quarters of streamed tracks have one of the major record labels behind them. And even though streaming is booming, it doesn’t contribute much to the incomes of the vast majority of artists.

Most artists stay hungry. A single stream will earn a musician anywhere between 0.1p and 2.4p. Crispin Hunt reckons that on average a million streams for a song — a wild ambition for most musicians — will, if you have to pay a cut to a record company, probably make you £1,000

If you’ve then got to pay your manager 20 per cent, and divide the rest between the four band members, “it barely pays for a Sainsbury’s shop. That’s why music is dominated by middle-class people called Crispin whose parents can afford to buy them an electric guitar and a laptop.”

For Christie Gardner, half of Lilo, a two-woman band, it helps planning gigs. “You can see where your listeners are and you can tell what they’re listening to. We make decisions about shows on that basis.” But for most bands, the economics of live performance are pretty grim.

Deathcrash’s manager Joe Taylor says that the band has been offered the opportunity of a European tour supporting a much bigger act. It would be good for their career but not their bank balance. The fees per show would be €200; once the costs of a sound engineer, a tour van, a driver, fuel, hotels and a carnet for importing musical instruments into the EU had been factored in, they would lose £15,000.

music has always been an uneconomic business, which people subsidise through other activities. The fiddler in the village pub probably worked in the fields in the daytime and played for money and fun in the evenings and at the weekend, rather as Ryder ran a juice bar and sang at weddings. These days, there is also the wafer-thin chance that they might end up being one of the 1,200 artists who make more than $1 million a year on Spotify

There are some signs that in the new musical economy, the balance of power between artists and the big record companies may have tipped slightly in the artists’ favour

the share of streaming revenues going to artists increased from 19.7 per cent to 23.3 per cent between 2012 and 2021 and that going to songwriters has risen from 8 per cent in 2008 to 15 per cent in 2021. “Outcomes for consumers, artists and songwriters,” it concludes, “are getting better.”

Most of the extra revenues generated by streaming are going to the top earners. But the stars are not the only ones benefiting. Between 2017 and 2022, the number of artists earning over $1 million on Spotify more than doubled, but so did the number earning over $10,000

more than two fifths of artists who release their own music aren’t expecting to make a full-time career. They’re in it for fun, for the love of it, or to be able to show their mum that they have released a song on Spotify.

It seems likely that the more music is being created, the greater the chance that wonderful tunes are being written, but it’s not necessarily the case. The best stuff might get buried under a mound of mediocrity.

In the 1960s fantasyland goes into overdrive. Psychedelics, academic scholarship and the New Age movement conspire to make reason and reality the realms of idiots and squares.

After the Kennedy assassinations, conspiracy theories become not just a fringe hobby but a “permanent feature of the American mental landscape.” U.F.O. sightings explode, and the stories become ever more elaborate

In the meantime, a kind of comfort with small fibs settles into the populace. When Andersen was young, he recalls, it was rare to see a woman over 50 whose hair was not gray or white. And apparently there were only eight plastic surgeons in all of Manhattan. But the market for hair color and plastic surgery explodes, as America starts writing its “national fiction of permanent youthfulness.”

the most persistent thread in “Fantasyland” is Christianity — the astounding number of Americans who believe in heaven and angels, which most of Europe gave up decades ago

Andersen reserves a starring role for the secular spiritualists. They were supposed to be a counterpoint to narrow-minded evangelicals, but Andersen says the New Agers committed an even greater sin than the faithful. What Anne Hutchinson started, Gestalt therapy finished off in the ’60s. Fritz Perls, a psychotherapist and Gestalt founder, simply put it: “I do my thing and you do your thing. I am not in this world to live up to your expectations, and you are not in this world to live up to mine.” Or put more simply: You do you.

If there’s a flaw in this book, it’s repetitiveness. Andersen seems by nature a collector. He goes for wide rather than deep. So he doesn’t examine, for example, how we would separate the junk from the gems

What we Americans need, it would seem, is something more powerful. A story to end all stories, preached by someone with the fire of Anne Hutchinson. A collective delusion so seductive that it will have us all, in Locke-step, bowing down to reason and reality.

our real progenitors were the Puritans, who passed the weeks on the trans-Atlantic voyage preaching about the end times and who, when they arrived, vowed to hang any Quaker or Catholic who landed on their shores. They were zealots and also well-educated British gentlemen, which set the tone for what Andersen identifies as a distinctly American endeavor: propping up magical thinking with elaborate scientific proof.

In Andersen’s telling, you can easily trace the line from the self-appointed 17th-century prophet Anne Hutchinson to Kanye West: She was, he writes, uniquely American “because she was so confident in herself, in her intuitions and idiosyncratic, subjective understanding of reality,” a total stranger to self-doubt.

As he explains in what must have been an alarmingly self-confirming last chapter: Donald Trump is “stupendous Exhibit A” in the landscape of “Fantasyland,” a fitting leader for a nation that has, over the centuries, nurtured a “promiscuous devotion to the untrue.”

He is concerned that masters of the A.I. universes are developing systems that will expand chasms of inequality. He fears the transition to A.I. will be so abrupt that entire professional fields will be left doing menial jobs, or nothing, stripping people of dignity and unleashing floods of “despair.”

Father Benanti, who does not believe in the industry’s ability to self-regulate and thinks some rules of the road are required in a world where deep fakes and disinformation can erode democracy.

He shares his insights with Pope Francis, who in his annual World Day of Peace message on Jan. 1 called for a global treaty to ensure the ethical development and use of AI to prevent a world devoid of human mercy, where inscrutable algorithms decide who is granted asylum, who gets a mortgage, or who, on the battlefield, lives or dies.

all the time he applies his perspective about what it means to be alive, and to be human, when machines seem more alive and human. “This is a spiritual question,” he said.

raises enormous questions about redistributing wealth in an A.I. dominant universe.

he pursued an engineering degree at Sapienza University in Rome. It wasn’t enough.“I started to feel that something was missing,” he said, explaining that his advancement as an engineering student erased the mystique machines held for him. “I simply broke the magic.”

He left Rome to study in Assisi, the home of St. Francis, and over the next decade, took his final vows as a friar, was ordained as a priest and defended his dissertation on human enhancement and cyborgs. He got his job at the Gregorian, and eventually as the Vatican’s IT ethics guy.

In 2017, Cardinal Ravasi organized an event at the Italian embassy to the Holy See where Father Benanti gave a talk on the ethics of A.I. Microsoft officials in attendance were impressed and asked to stay in touch. That same year, the Italian government asked him to contribute to A.I. policy documents and the next year he successfully applied to sit on its commission for developing a national A.I. strategy.

Francis, he said, didn’t at first realize what Microsoft really did, but liked that Mr. Smith took out of his pocket one of the pope’s speeches on social media and showed the pontiff the concerns the business executive had highlighted and shared.

e said, arguing that as ancient Roman augurs turned to the flight of birds for direction, A.I., with its enormous grasp of our physical, emotional and preferential data, could be the new oracles, determining decisions, and replacing God with false idols.

“It’s something old that probably we think that we left behind,” the friar said, “but that is coming back.”

Republican politicians, sensing momentum, called on other firms to follow suit.

“This was always cosmetic,” said Shivaram Rajgopal, a professor at Columbia Business School. “If signing a piece of paper was getting these companies into trouble, it’s no surprise they’re getting the hell out.

American asset managers have a fiduciary duty to act in the best interest of their clients, and the financial firms were worried that a new strategy by Climate Action 100+ could expose them to legal risks.

Since its founding in 2017, the group focused on getting publicly traded companies to increase how much information they shared about their emissions and identify climate-related risks to their businesses.

In addition to the risk that some clients might disapprove, and potentially sue, there were other concerns. Among them: that acting in concert to shape the behaviors of other companies could fall afoul of antitrust regulations.

The new plan called on asset-management firms to begin pressuring companies like Exxon Mobil and Walmart to adopt policies that could entail, for example, using fewer fossil fuels

last year, Climate Action 100+ said it would shift its focus toward getting companies to reduce emissions with what it called phase two of its strategy

BlackRock also said that one of its subsidiaries, BlackRock International, would continue to participate in the group — a tacit acknowledgment of the different regulatory environment in Europe. BlackRock also said it was initiating new features that would let clients choose if they wanted to pressure companies to reduce their emissions.

Pimco, another big asset manager, followed suit. “We have concluded that our Climate Action 100+ participation is no longer aligned with PIMCO’s approach to sustainability,” a firm spokesman said in a statement.

JPMorgan said it was pulling out of the group in recognition of the fact that, over the past few years, the firm had developed its own framework for engaging on climate risk

The fracturing of Climate Action 100+ was a victory for Representative Jim Jordan, Republican of Ohio, who has led a campaign against companies pursuing E.S.G. goals, shorthand for environmental, social and governance factors.

Embracing E.S.G. principles and speaking up on climate issues has become commonplace across corporate America in recent years. Chief executives warned about the dangers of climate change. Banks and asset managers formed alliances to phase out fossil fuels. Trillions of dollars were allocated for sustainable investing.

“Phase two is not that different,” she said. “It’s basically investors working with companies and saying: ‘OK, you’ve disclosed the risk. We just want to know how you’re going to address it.’ Because that’s what the investors want. How are you dealing with risk?”

Mindy Lubber, the chief executive of Ceres and a member of the steering committee of Climate Action 100+, disputed the notion that the new strategy represented a change from the focus on enhanced disclosure.

“The political cost has heightened, the legal risk has heightened,” he said. “That said, these corporations are not doing U-turns,” he added. “They continue to consider climate. That’s not going away. It’s adapting to the current environment.”

Aron Cramer, chief executive for BSR, a sustainable-business consultancy, said the Wall Street firms were responding to political pressure, but not abandoning their climate commitments altogether.

Several of the firms that backed out of Climate Action 100+ said they remained committed to the issue. JPMorgan said that it had a team of 40 people working on sustainable investing and that it believed “climate change continues to present material economic risks and opportunities to our clients.”