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a “builder class”—a brains trust of youngish idealists, which includes Patrick Collison, co-founder of Stripe, a payments firm valued at $74bn, and other (mostly white and male) techies, who are posing questions that go far beyond the usual interests of Silicon Valley’s titans. They include the future of man and machine, the constraints on economic growth, and the nature of government.

They share other similarities. Business provided them with their clout, but doesn’t seem to satisfy their ambition

The number of techno-billionaires in America (Mr Collison included) has more than doubled in a decade.

ome of them, like the Medicis in medieval Florence, are keen to use their money to bankroll the intellectual ferment

The other is Paul Graham, co-founder of Y Combinator, a startup accelerator, whose essays on everything from cities to politics are considered required reading on tech campuses.

Mr Altman puts it more optimistically: “The iPhone and cloud computing enabled a Cambrian explosion of new technology. Some things went right and some went wrong. But one thing that went weirdly right is a lot of people got rich and said ‘OK, now what?’”

A belief that with money and brains they can reboot social progress is the essence of this new mindset, making it resolutely upbeat

The question is: are the rest of them further evidence of the tech industry’s hubristic decadence? Or do they reflect the start of a welcome capacity for renewal?

Two well-known entrepreneurs from that era provided the intellectual seed capital for some of today’s techno nerds.

Mr Thiel, a would-be libertarian philosopher and investor

This cohort of eggheads starts from common ground: frustration with what they see as sluggish progress in the world around them.

Yet the impact could ultimately be positive. Frustrations with a sluggish society have encouraged them to put their money and brains to work on problems from science funding and the redistribution of wealth to entirely new universities. Their exaltation of science may encourage a greater focus on hard tech

the rationalist movement has hit the mainstream. The result is a fascination with big ideas that its advocates believe goes beyond simply rose-tinted tech utopianism

A burgeoning example of this is “progress studies”, a movement that Mr Collison and Tyler Cowen, an economist and seer of the tech set, advocated for in an article in the Atlantic in 2019

Progress, they think, is a combination of economic, technological and cultural advancement—and deserves its own field of study

There are other examples of this expansive worldview. In an essay in 2021 Mr Altman set out a vision that he called “Moore’s Law for Everything”, based on similar logic to the semiconductor revolution. In it, he predicted that smart machines, building ever smarter replacements, would in the coming decades outcompete humans for work. This would create phenomenal wealth for some, obliterate wages for others, and require a vast overhaul of taxation and redistribution

His two bets, on OpenAI and nuclear fusion, have become fashionable of late—the former’s chatbot, ChatGPT, is all the rage. He has invested $375m in Helion, a company that aims to build a fusion reactor.

Mr Lonsdale, who shares a libertarian streak with Mr Thiel, has focused attention on trying to fix the shortcomings of society and government. In an essay this year called “In Defence of Us”, he argues against “historical nihilism”, or an excessive focus on the failures of the West.

With a soft spot for Roman philosophy, he has created the Cicero Institute in Austin that aims to inject free-market principles such as competition and transparency into public policy.

He is also bringing the startup culture to academia, backing a new place of learning called the University of Austin, which emphasises free speech.

All three have business ties to their mentors. As a teen, Mr Altman was part of the first cohort of founders in Mr Graham’s Y Combinator, which went on to back successes such as Airbnb and Dropbox. In 2014 he replaced him as its president, and for a while counted Mr Thiel as a partner (Mr Altman keeps an original manuscript of Mr Thiel’s book “Zero to One” in his library). Mr Thiel was also an early backer of Stripe, founded by Mr Collison and his brother, John. Mr Graham saw promise in Patrick Collison while the latter was still at school. He was soon invited to join Y Combinator. Mr Graham remains a fan: “If you dropped Patrick on a desert island, he would figure out how to reproduce the Industrial Revolution,”

While at university, Mr Lonsdale edited the Stanford Review, a contrarian publication co-founded by Mr Thiel. He went on to work for his mentor and the two men eventually helped found Palantir. He still calls Mr Thiel “a genius”—though he claims these days to be less “cynical” than his guru.

“The tech industry has always told these grand stories about itself,” says Adrian Daub of Stanford University and author of the book, “What Tech Calls Thinking”. Mr Daub sees it as a way of convincing recruits and investors to bet on their risky projects. “It’s incredibly convenient for their business models.”

In the 2000s Mr Thiel supported the emergence of a small community of online bloggers, self-named the “rationalists”, who were focused on removing cognitive biases from thinking (Mr Thiel has since distanced himself). That intellectual heritage dates even further back, to “cypherpunks”, who noodled about cryptography, as well as “extropians”, who believed in improving the human condition through life extensions

Silicon Valley has shown an uncanny ability to reinvent itself in the past.

At the same time, the share of high school students who say they have had sexual intercourse has fallen 29 percent since 1991,

The share of female teens who did not use birth control the last time they had sex dropped by more than a third over the last decade, according to an analysis of government surveys by the Guttmacher Institute. The share using the most effective form, long-acting reversible contraception (delivered through an intrauterine device or arm implant), rose fivefold to 15 percent. The use of emergency contraception also rose.

“They’re going to school and seeing new career paths open,” said Melissa S. Kearney, an economist at the University of Maryland. “Whether they are excited about their own opportunities or feel that unreliable male partners leave them no choice, it leads them in the same direction — not becoming a young mother.”

Abortion does not appear to have driven the decline in teen births. As a share of teenage pregnancy, it has remained steady over the past decade,

If adolescent girls are more cautious with sex and birth control, what explains the caution? A common answer is that more feel they have something to lose. “There is just a greater confidence among young women that they have educational and professional opportunities,” Mr. Wilcox said.

t women in their mid-30s were nearly 25 percent more likely than men to have a four-year college degree, and at every educational level earnings had grown faster for women than men.

Skeptics see limits in the data and note that the payoff to education is growing.“I strongly disagree with the argument that teen births have no effect on social mobility,” said Isabel V. Sawhill of the Brookings Institution. “It’s a lot easier to move out of poverty if you’re not responsible for a child in your teenage years.”

The debate is more than academic. Some progressives worry that a narrow focus on preventing teen births will undermine broader anti-poverty plans and risks blaming adolescents for their poverty. Other see reducing poverty and teen births as complementary causes meant not to blame young women but empower them.

But it starts an ocean away, during the Crimean War, 169 years ago.

Almost as soon as the phrase was coined, its definition was broadened to become shorthand for the British military more generally, particularly its courage in the face of long odds or superior numbers.

“Between the law-abiding elements of society and the criminals that prey upon them,” Mr. Parker said, “stands a thin blue line of defense — your police officer.” The police, in his vision, weren’t just protecting public safety; they were combating the decline of Western civilization, the rise of Communism, the moral laxity of postwar America, the decay of the nuclear family, and so on.

Like other mash-ups of identity flags with the American flag, the thin blue line flag is a rallying point for a marginalized identity, a way to lay claim to the American birthright, a demand for long-denied respect

Mr. Parker’s vision went beyond policing as a profession. In 1965, he told a civil rights commission investigating the Watts riots that “the police of this country, in my opinion, are the most downtrodden, oppressed, dislocated minority in America.” This belief, a half-century later, would animate an identity politics that blurred the blue line.

Blue Lives Matter is not just an expression of support and solidarity for the police, but a response to and rejection of Black Lives Matter. It suggests that it is not Black people whose lives are undervalued by society, but police officers.

The thin blue line would become the dominant metaphor for the police. In 1981, President Ronald Reagan said the thin blue line held back “a jungle which threatens to reclaim this clearing we call civilization”; in 1993, President Bill Clinton called it “nothing less than our buffer against chaos, against the worst impulses of this society.”

As the L.G.B.T. American flag does, it exploits a visual pun, but much less playfully: The blue line divides America against itself.

Blue Lives Matter is a movement that belies the simplicity of its name: It can certainly mean that the police deserve respect for doing a critical and dangerous job. But it can also mean that overzealous racial politics have inverted the criminal justice system, punishing the peacekeepers, coddling the criminals and turning those who carry a badge into the most embattled and victimized group in the nation. Blue Lives Matter transformed policing into a tribal affiliation.

This blossoming identity was an opportunity for any politician bold enough to take it. While trust in the police was dropping among Black and Hispanic Americans, it actually was rising for white Americans

Donald Trump was particularly well suited to take advantage of the rise of policing as identity politics. His entrance onto the political scene in the 1980s was his call for the reinstatement of the death penalty and less oversight of police.

The Trump campaign cast the Democrats as enemies of law and order who sought to incubate riots in American cities and chaos at the border.

Mr. Trump claimed that while the Democratic ticket stood with “rioters and vandals,” he stood with “the heroes of law enforcement.”

After Mr. Trump’s prophecy came true and the soft coup of representative democracy denied him a second term, when his supporters rallied for one last stand on the grassy field in front of the Capitol, it was inevitable that they would see themselves as bearing the mantle of law and order, a thin blue line smashing through a thin blue line.

In the aftermath of Jan. 6, when the nation saw that flag held aloft by the rioters who attacked the Metropolitan Police officer Michael Fanone (he says they literally beat him with it), the thin blue line flag has become increasingly controversial among police officers. In 2023, the Los Angeles Police Department banned its public display on the job. In an email explaining his decision to his officers, Chief Michel Moore lamented that “extremist groups” had “hijacked” the flag.

Since 2016, there have been two competing visions for the Democratic Party. One is the promise that began with Barack Obama of a multiracial coalition that would grow stronger as America’s demographics shifted; the other is the political revolution championed by Bernie Sanders as a way to unite nonvoters with the working class

Ms. Ocasio-Cortez bridges the gap between the two

what’s clear is that at a time when Democrats are struggling, she is quietly laying the groundwork to build a coalition broader than the one she came to power with, unafraid to take risks along the way.

After five years in Congress, she has emerged as a tested navigator of its byzantine systems, wielding her celebrity to further her political aims in a way few others have.

Three terms in, one gets the sense that we’re witnessing a skilled tactician exiting her political adolescence and coming into her own as a veteran operator out to reform America’s most dysfunctional political body.

To grasp what sets Ms. Ocasio-Cortez apart from many of her colleagues, you have to understand where she finds allies

In 2019, she and Senator Ted Cruz of Texas considered joining forces to write a bill that would bar former members of Congress from becoming lobbyists. Asked why she would consider an alliance with someone so loathed by liberals, she said, “I will swallow all of my distaste in this situation because we have found a common interest.”

It was a window into the politician she would become: pragmatic and results-driven, willing to work with people she considers her political adversaries, at least on legislation that appeals to her base

She has attributed the success of these efforts at least in part to her role as the second most powerful Democrat on the House Oversight Committee, which she said has “opened many windows” for collaboration.

while these bills may seem like small victories, they are more than that because, in a sense, she is redefining what bipartisanship looks like in Washington.

For decades, bipartisanship has meant bringing together moderates, lobbyists and establishment insiders to produce watered-down legislation unpalatable to many voters in both political partie

What Ms. Ocasio-Cortez is doing is different; she’s uniting politicians on the fringes of American politics around a broadly popular set of policies.

Americans in both parties overwhelmingly say that they don’t trust the government to do the right thing and that donors and lobbyists have too much sway over the legislative process.

more than 8 in 10 Americans believe politicians “are more focused on fighting each other than on solving problems.” One-fifth of respondents said lack of bipartisan cooperation was the biggest problem with the political system.

Ms. Ocasio-Cortez’s efforts to reach out to Republicans are offering what a sizable portion of Americans want from Congress: a return to getting things done.

The few policy matters on which progressives and conservatives align often boil down to a distrust of politicians and of big corporations, particularly technology companies and pharmaceutical giants.

Ms. Ocasio-Cortez has shrewdly made those causes her passion, building alliances with conservative colleagues interested in holding these industries accountable.

Last spring, she cosponsored a bill with, among others, Brian Fitzpatrick, a moderate Republican from Pennsylvania, and Matt Gaetz, the Florida rabble-rouser who has become one of Mr. Trump’s most steadfast allies. The legislation would bar members of Congress from trading individual stocks, a measure that as of the fall of 2022 was supported by nearly 70 percent of voters across party lines.

On Gaza, too, she has been willing to buck other members of her party to pursue an agenda that a majority of voters support. She was one of the first Democrats to call for a cease-fire; within weeks, nearly 70 percent of Americans said Israel should call one and try to negotiate with Hamas.

In March, Ms. Ocasio-Cortez was accosted by a handful of protesters who demanded that she call Israel’s war in Gaza a genocide.

Less than three weeks later, Ms. Ocasio-Cortez did accuse Israel of genocide and chastised the White House for providing military aid to the country while it blockaded Gaza. “If you want to know what an unfolding genocide looks like,” Ms. Ocasio-Cortez said in a speech on the House floor, “open your eyes. It looks like the forced famine of 1.1 million innocents. It looks like thousands of children eating grass as their bodies consume themselves, while trucks of food are slowed and halted just miles away.”

Last month, she voted against providing additional funding for Israel. Those were unpopular positions in Congress, where unconditional support for the country remains the norm, but they put her in line with a majority of Democratic voters.

These stances haven’t been enough to quell the doubts from a faction of the left that helped get her elected. Over the past few weeks, some have accused her of caving in to pressure from moderate Democrats

. Ms. Ocasio-Cortez has taken much of the heat from leftist activists who see her as a symbol of the contradictions and compromises inherent in the political system. It may not be realistic to expect absolute purity from her; she is, after all, a politician. But these critiques overlook the promise of what she’s doing behind the scenes.

Democratic pollsters and strategists are searching for ways for Mr. Biden to win back Muslims and Arab Americans in swing states such as Michigan and Georgia, recent college graduates who hoped to have their student debt forgiven, immigrant-rights activists and Latinos.

Some of the betrayal these voters feel was hardly the president’s fault; he was hampered on student loan debt by a federal judiciary stacked with judges sympathetic to conservative legal arguments, and Congress refused to pass the comprehensive immigration bill he supported in 2021, which would have provided legal status to as many as 11 million undocumented immigrants.

A more gifted orator might have been able to make the structural impediments in his way clear to voters, while also putting forth a proactive vision for dismantling the core problems baked into our politics.

In that, someone like Ms. Ocasio-Cortez, who endorsed Mr. Biden for re-election in 2023, may be able to help. She’s the Democratic Party’s most charismatic politician since Barack Obama and its most ardent populist since Bernie Sanders.

she can offer voters something more substantial than a hollow rebuke of Trumpism

Last month, when the journalist Mehdi Hasan asked her how she’d respond to “a young progressive or Arab American who says to you, ‘I just can’t vote for Biden again after what he’s enabled in Gaza,’” Ms. Ocasio-Cortez said a vote for Mr. Biden didn’t necessarily mean an endorsement of all his policies. “Even in places of stark disagreement, I would rather be organizing under the conditions of Biden as an opponent on an issue than Trump,” she said. It was a shrewd political maneuver, designed to distance herself from Democrats who support Israel unconditionally, while meeting voters — some of whom have lost family members in Gaza — where they are

There are, of course, limits to this strategy. Some on the left see Ms. Ocasio-Cortez’s endorsement of Mr. Biden as a betrayal of progressive values, particularly in the wake of the climbing death toll in Gaza.

The moderate Republicans who turned out for Mr. Biden in 2020 might shrink from a Democratic Party led by someone they consider an outspoken progressive.

But for every moderate or leftist voter lost with a strategy like Ms. Ocasio-Cortez’s, the Democratic Party may be able to win someone new — from the pool of disillusioned Americans who feel shut out of the political process.

The ordinary fixes—the kind that draw on people’s will, and require eating less and moving more—rarely have a large or lasting effect. Indeed, America itself has suffered through a long, maddening history of failed attempts to change its habits on a national scale: a yo-yo diet of well-intentioned treatments, policies, and other social interventions that only ever lead us back to where we started

Through it all, obesity rates keep going up; the diabetes epidemic keeps worsening.

The most recent miracle, for Barb as well as for the nation, has come in the form of injectable drugs. In early 2021, the Danish pharmaceutical company Novo Nordisk published a clinical trial showing remarkable results for semaglutide, now sold under the trade names Wegovy and Ozempic.

Patients in the study who’d had injections of the drug lost, on average, close to 15 percent of their body weight—more than had ever been achieved with any other drug in a study of that size. Wadden knew immediately that this would be “an incredible revolution in the treatment of obesity.”

Many more drugs are now racing through development: survodutide, pemvidutide, retatrutide. (Among specialists, that last one has produced the most excitement: An early trial found an average weight loss of 24 percent in one group of participants.

In the United States, an estimated 189 million adults are classified as having obesity or being overweight

The drugs don’t work for everyone. Their major side effects—nausea, vomiting, and diarrhea—can be too intense for many patients. Others don’t end up losing any weight

For the time being, just 25 percent of private insurers offer the relevant coverage, and the cost of treatment—about $1,000 a month—has been prohibitive for many Americans.

The drugs have already been approved not just for people with diabetes or obesity, but for anyone who has a BMI of more than 27 and an associated health condition, such as high blood pressure or cholesterol. By those criteria, more than 140 million American adults already qualify

if this story goes the way it’s gone for other “risk factor” drugs such as statins and antihypertensives, then the threshold for prescriptions will be lowered over time, inching further toward the weight range we now describe as “normal.”

How you view that prospect will depend on your attitudes about obesity, and your tolerance for risk

The first GLP-1 drug to receive FDA approval, exenatide, has been used as a diabetes treatment for more than 20 years. No long-term harms have been identified—but then again, that drug’s long-term effects have been studied carefully only across a span of seven years

the data so far look very good. “These are now being used, literally, in hundreds of thousands of people across the world,” she told me, and although some studies have suggested that GLP-1 drugs may cause inflammation of the pancreas, or even tumor growth, these concerns have not borne out.

adolescents are injecting newer versions of these drugs, and may continue to do so every week for 50 years or more. What might happen over all that time?

“All of us, in the back of our minds, always wonder, Will something show up?  ” Although no serious problems have yet emerged, she said, “you wonder, and you worry.”

in light of what we’ve been through, it’s hard to see what other choices still remain. For 40 years, we’ve tried to curb the spread of obesity and its related ailments, and for 40 years, we’ve failed. We don’t know how to fix the problem. We don’t even understand what’s really causing it. Now, again, we have a new approach. This time around, the fix had better work.

The fen-phen revolution arrived at a crucial turning point for Wadden’s field, and indeed for his career. By then he’d spent almost 15 years at the leading edge of research into dietary interventions, seeing how much weight a person might lose through careful cutting of their calories.

But that sort of diet science—and the diet culture that it helped support—had lately come into a state of ruin. Americans were fatter than they’d ever been, and they were giving up on losing weight. According to one industry group, the total number of dieters in the country declined by more than 25 percent from 1986 to 1991.

Rejecting diet culture became something of a feminist cause. “A growing number of women are joining in an anti-diet movement,” The New York Times reported in 1992. “They are forming support groups and ceasing to diet with a resolve similar to that of secretaries who 20 years ago stopped getting coffee for their bosses.

Now Wadden and other obesity researchers were reaching a consensus that behavioral interventions might produce in the very best scenario an average lasting weight loss of just 5 to 10 percent

National surveys completed in 1994 showed that the adult obesity rate had surged by more than half since 1980, while the proportion of children classified as overweight had doubled. The need for weight control in America had never seemed so great, even as the chances of achieving it were never perceived to be so small.

Wadden wasn’t terribly concerned, because no one in his study had reported any heart symptoms. But ultrasounds revealed that nearly one-third of them had some degree of leakage in their heart valves. His “cure for obesity” was in fact a source of harm.

In December 1994, the Times ran an editorial on what was understood to be a pivotal discovery: A genetic basis for obesity had finally been found. Researchers at Rockefeller University were investigating a molecule, later named leptin, that gets secreted from fat cells and travels to the brain, and that causes feelings of satiety. Lab mice with mutations in the leptin gene—importantly, a gene also found in humans—overeat until they’re three times the size of other mice. “The finding holds out the dazzling hope,”

In April 1996, the doctors recommended yes: Dexfenfluramine was approved—and became an instant blockbuster. Patients received prescriptions by the hundreds of thousands every month. Sketchy wellness clinics—call toll-free, 1-888-4FEN-FEN—helped meet demand. Then, as now, experts voiced concerns about access. Then, as now, they worried that people who didn’t really need the drugs were lining up to take them. By the end of the year, sales of “fen” alone had surpassed $300 million.

It was nothing less than an awakening, for doctors and their patients alike. Now a patient could be treated for excess weight in the same way they might be treated for diabetes or hypertension—with a drug they’d have to take for the rest of their life.

the article heralded a “new understanding of obesity as a chronic disease rather than a failure of willpower.”

News had just come out that, at the Mayo Clinic in Minnesota, two dozen women taking fen-phen—including six who were, like Barb, in their 30s—had developed cardiac conditions. A few had needed surgery, and on the operating table, doctors discovered that their heart valves were covered with a waxy plaque.

Americans had been prescribed regular fenfluramine since 1973, and the newer drug, dexfenfluramine, had been available in France since 1985. Experts took comfort in this history. Using language that is familiar from today’s assurances regarding semaglutide and other GLP-1 drugs, they pointed out that millions were already on the medication. “It is highly unlikely that there is anything significant in toxicity to the drug that hasn’t been picked up with this kind of experience,” an FDA official named James Bilstad would later say in a Time cover story headlined “The Hot New Diet Pill.

“I know I can’t get any more,” she told Williams. “I have to use up what I have. And then I don’t know what I’m going to do after that. That’s the problem—and that is what scares me to death.” Telling people to lose weight the “natural way,” she told another guest, who was suggesting that people with obesity need only go on low-carb diets, is like “asking a person with a thyroid condition to just stop their medication.”

She’d gone off the fen-phen and had rapidly regained weight. “The voices returned and came back in a furor I’d never heard before,” Barb later wrote on her blog. “It was as if they were so angry at being silenced for so long, they were going to tell me 19 months’ worth of what they wanted me to hear. I was forced to listen. And I ate. And I ate. And ate.”

For Barb, rapid weight loss has brought on a different metaphysical confusion. When she looks in the mirror, she sometimes sees her shape as it was two years ago. In certain corners of the internet, this is known as “phantom fat syndrome,” but Barb dislikes that term. She thinks it should be called “body integration syndrome,” stemming from a disconnect between your “larger-body memory” and “smaller-body reality.

In 2003, the U.S. surgeon general declared obesity “the terror within, a threat that is every bit as real to America as the weapons of mass destruction”; a few months later, Eric Finkelstein, an economist who studies the social costs of obesity, put out an influential paper finding that excess weight was associated with up to $79 billion in health-care spending in 1998, of which roughly half was paid by Medicare and Medicaid. (Later he’d conclude that the number had nearly doubled in a decade.

In 2004, Finkelstein attended an Action on Obesity summit hosted by the Mayo Clinic, at which numerous social interventions were proposed, including calorie labeling in workplace cafeterias and mandatory gym class for children of all grades.

he message at their core, that soda was a form of poison like tobacco, spread. In San Francisco and New York, public-service campaigns showed images of soda bottles pouring out a stream of glistening, blood-streaked fat. Michelle Obama led an effort to depict water—plain old water—as something “cool” to drink.

Soon, the federal government took up many of the ideas that Brownell had helped popularize. Barack Obama had promised while campaigning for president that if America’s obesity trends could be reversed, the Medicare system alone would save “a trillion dollars.” By fighting fat, he implied, his ambitious plan for health-care reform would pay for itself. Once he was in office, his administration pulled every policy lever it could.

Michelle Obama helped guide these efforts, working with marketing experts to develop ways of nudging kids toward better diets and pledging to eliminate “food deserts,” or neighborhoods that lacked convenient access to healthy, affordable food. She was relentless in her public messaging; she planted an organic garden at the White House and promoted her signature “Let’s Move!” campaign around the country.

An all-out war on soda would come to stand in for these broad efforts. Nutrition studies found that half of all Americans were drinking sugar-sweetened beverages every day, and that consumption of these accounted for one-third of the added sugar in adults’ diets. Studies turned up links between people’s soft-drink consumption and their risks for type 2 diabetes and obesity. A new strand of research hinted that “liquid calories” in particular were dangerous to health.

when their field lost faith in low-calorie diets as a source of lasting weight loss, the two friends went in opposite directions. Wadden looked for ways to fix a person’s chemistry, so he turned to pharmaceuticals. Brownell had come to see obesity as a product of our toxic food environment: He meant to fix the world to which a person’s chemistry responded, so he started getting into policy.

The social engineering worked. Slowly but surely, Americans’ lamented lifestyle began to shift. From 2001 to 2018, added-sugar intake dropped by about one-fifth among children, teens, and young adults. From the late 1970s through the early 2000s, the obesity rate among American children had roughly tripled; then, suddenly, it flattened out.

although the obesity rate among adults was still increasing, its climb seemed slower than before. Americans’ long-standing tendency to eat ever-bigger portions also seemed to be abating.

sugary drinks—liquid candy, pretty much—were always going to be a soft target for the nanny state. Fixing the food environment in deeper ways proved much harder. “The tobacco playbook pretty much only works for soda, because that’s the closest analogy we have as a food item,

that tobacco playbook doesn’t work to increase consumption of fruits and vegetables, he said. It doesn’t work to increase consumption of beans. It doesn’t work to make people eat more nuts or seeds or extra-virgin olive oil.

Careful research in the past decade has shown that many of the Obama-era social fixes did little to alter behavior or improve our health. Putting calorie labels on menus seemed to prompt at most a small decline in the amount of food people ate. Employer-based wellness programs (which are still offered by 80 percent of large companies) were shown to have zero tangible effects. Health-care spending, in general, kept going up.

From the mid-1990s to the mid-2000s, the proportion of adults who said they’d experienced discrimination on account of their height or weight increased by two-thirds, going up to 12 percent. Puhl and others started citing evidence that this form of discrimination wasn’t merely a source of psychic harm, but also of obesity itself. Studies found that the experience of weight discrimination is associated with overeating, and with the risk of weight gain over time.

obesity rates resumed their ascent. Today, 20 percent of American children have obesity. For all the policy nudges and the sensible revisions to nutrition standards, food companies remain as unfettered as they were in the 1990s, Kelly Brownell told me. “Is there anything the industry can’t do now that it was doing then?” he asked. “The answer really is no. And so we have a very predictable set of outcomes.”

she started to rebound. The openings into her gastric pouch—the section of her stomach that wasn’t bypassed—stretched back to something like their former size. And Barb found ways to “eat around” the surgery, as doctors say, by taking food throughout the day in smaller portions

Bariatric surgeries can be highly effective for some people and nearly useless for others. Long-term studies have found that 30 percent of those who receive the same procedure Barb did regain at least one-quarter of what they lost within two years of reaching their weight nadir; more than half regain that much within five years.

if the effects of Barb’s surgery were quickly wearing off, its side effects were not: She now had iron, calcium, and B12 deficiencies resulting from the changes to her gut. She looked into getting a revision of the surgery—a redo, more or less—but insurance wouldn’t cover it

She found that every health concern she brought to doctors might be taken as a referendum, in some way, on her body size. “If I stubbed my toe or whatever, they’d just say ‘Lose weight.’ ” She began to notice all the times she’d be in a waiting room and find that every chair had arms. She realized that if she was having a surgical procedure, she’d need to buy herself a plus-size gown—or else submit to being covered with a bedsheet when the nurses realized that nothing else would fit.

Barb grew angrier and more direct about her needs—You’ll have to find me a different chair, she started saying to receptionists. Many others shared her rage. Activists had long decried the cruel treatment of people with obesity: The National Association to Advance Fat Acceptance had existed, for example, in one form or another, since 1969; the Council on Size & Weight Discrimination had been incorporated in 1991. But in the early 2000s, the ideas behind this movement began to wend their way deeper into academia, and they soon gained some purchase with the public.

“Our public-health efforts to address obesity have failed,” Eric Finkelstein, the economist, told me.

Others attacked the very premise of a “healthy weight”: People do not have any fundamental need, they argued, morally or medically, to strive for smaller bodies as an end in itself. They called for resistance to the ideology of anti-fatness, with its profit-making arms in health care and consumer goods. The Association for Size Diversity and Health formed in 2003; a year later, dozens of scholars working on weight-related topics joined together to create the academic field of fat studies.

As the size-diversity movement grew, its values were taken up—or co-opted—by Big Business. Dove had recently launched its “Campaign for Real Beauty,” which included plus-size women. (Ad Age later named it the best ad campaign of the 21st century.) People started talking about “fat shaming” as something to avoid

By 2001, Bacon, who uses they/them pronouns, had received their Ph.D. and finished a rough draft of a book, Health at Every Size, which drew inspiration from a broader movement by that name among health-care practitioners

But something shifted in the ensuing years. In 2007, Bacon got a different response, and the book was published. Health at Every Size became a point of entry for a generation of young activists and, for a time, helped shape Americans’ understanding of obesity.

Some experts were rethinking their advice on food and diet. At UC Davis, a physiologist named Lindo Bacon who had struggled to overcome an eating disorder had been studying the effects of “intuitive eating,” which aims to promote healthy, sustainable behavior without fixating on what you weigh or how you look

The heightened sensitivity started showing up in survey data, too. In 2010, fewer than half of U.S. adults expressed support for giving people with obesity the same legal protections from discrimination offered to people with disabilities. In 2015, that rate had risen to three-quarters.

In Bacon’s view, the 2000s and 2010s were glory years. “People came together and they realized that they’re not alone, and they can start to be critical of the ideas that they’ve been taught,” Bacon told me. “We were on this marvelous path of gaining more credibility for the whole Health at Every Size movement, and more awareness.”

that sense of unity proved short-lived; the movement soon began to splinter. Black women have the highest rates of obesity, and disproportionately high rates of associated health conditions. Yet according to Fatima Cody Stanford, an obesity-medicine physician at Harvard Medical School, Black patients with obesity get lower-quality care than white patients with obesity.

That system was exactly what Bacon and the Health at Every Size movement had set out to reform. The problem, as they saw it, was not so much that Black people lacked access to obesity medicine, but that, as Bacon and the Black sociologist Sabrina Strings argued in a 2020 article, Black women have been “specifically targeted” for weight loss, which Bacon and Strings saw as a form of racism

But members of the fat-acceptance movement pointed out that their own most visible leaders, including Bacon, were overwhelmingly white. “White female dietitians have helped steal and monetize the body positive movement,” Marquisele Mercedes, a Black activist and public-health Ph.D. student, wrote in September 2020. “And I’m sick of it.”

Tensions over who had the standing to speak, and on which topics, boiled over. In 2022, following allegations that Bacon had been exploitative and condescending toward Black colleagues, the Association for Size Diversity and Health expelled them from its ranks and barred them from attending its events.

As the movement succumbed to in-fighting, its momentum with the public stalled. If attitudes about fatness among the general public had changed during the 2000s and 2010s, it was only to a point. The idea that some people can indeed be “fit but fat,” though backed up by research, has always been a tough sell.

Although Americans had become less inclined to say they valued thinness, measures of their implicit attitudes seemed fairly stable. Outside of a few cities such as San Francisco and Madison, Wisconsin, new body-size-discrimination laws were never passed.

In the meantime, thinness was coming back into fashion

In the spring of 2022, Kim Kardashian—whose “curvy” physique has been a media and popular obsession—boasted about crash-dieting in advance of the Met Gala. A year later, the model and influencer Felicity Hayward warned Vogue Business that “plus-size representation has gone backwards.” In March of this year, the singer Lizzo, whose body pride has long been central to her public persona, told The New York Times that she’s been trying to lose weight. “I’m not going to lie and say I love my body every day,” she said.

Among the many other dramatic effects of the GLP-1 drugs, they may well have released a store of pent-up social pressure to lose weight.

If ever there was a time to debate that impulse, and to question its origins and effects, it would be now. But Puhl told me that no one can even agree on which words are inoffensive. The medical field still uses obesity, as a description of a diagnosable disease. But many activists despise that phrase—some spell it with an asterisk in place of the e—and propose instead to reclaim fat.

Everyone seems to agree on the most important, central fact: that we should be doing everything we can to limit weight stigma. But that hasn’t been enough to stop the arguing.

Things feel surreal these days to just about anyone who has spent years thinking about obesity. At 71, after more than four decades in the field, Thomas Wadden now works part-time, seeing patients just a few days a week. But the arrival of the GLP-1 drugs has kept him hanging on for a few more years, he said. “It’s too much of an exciting period to leave obesity research right now.”

When everyone is on semaglutide or tirzepatide, will the soft-drink companies—Brownell’s nemeses for so many years—feel as if a burden has been lifted? “My guess is the food industry is probably really happy to see these drugs come along,” he said. They’ll find a way to reach the people who are taking GLP‑1s, with foods and beverages in smaller portions, maybe. At the same time, the pressures to cut back on where and how they sell their products will abate.

the triumph in obesity treatment only highlights the abiding mystery of why Americans are still getting fatter, even now

Perhaps one can lay the blame on “ultraprocessed” foods, he said. Maybe it’s a related problem with our microbiomes. Or it could be that obesity, once it takes hold within a population, tends to reproduce itself through interactions between a mother and a fetus. Others have pointed to increasing screen time, how much sleep we get, which chemicals are in the products that we use, and which pills we happen to take for our many other maladies.

“The GLP-1s are just a perfect example of how poorly we understand obesity,” Mozaffarian told me. “Any explanation of why they cause weight loss is all post-hoc hand-waving now, because we have no idea. We have no idea why they really work and people are losing weight.”

The new drugs—and the “new understanding of obesity” that they have supposedly occasioned—could end up changing people’s attitudes toward body size. But in what ways

When the American Medical Association declared obesity a disease in 2013, Rebecca Puhl told me, some thought “it might reduce stigma, because it was putting more emphasis on the uncontrollable factors that contribute to obesity.” Others guessed that it would do the opposite, because no one likes to be “diseased.”

why wasn’t there another kind of nagging voice that wouldn’t stop—a sense of worry over what the future holds? And if she wasn’t worried for herself, then what about for Meghann or for Tristan, who are barely in their 40s? Wouldn’t they be on these drugs for another 40 years, or even longer? But Barb said she wasn’t worried—not at all. “The technology is so much better now.” If any problems come up, the scientists will find solutions.

Dr. Longo, who is also a professor of gerontology and director of the U.S.C. Longevity Institute in California, has long advocated longer and better living through eating Lite Italian, one of a global explosion of Road to Perpetual Wellville theories about how to stay young in a field that is itself still in its adolescence.

In addition to identifying genes that regulate aging, he has created a plant and nut-based diet with supplements and kale crackers that mimics fasting to, he argues, allow cells to shed harmful baggage and rejuvenate, without the down side of actually starving.

He has patented and sold his ProLon diet kits; published best-selling books (“The Longevity Diet”); and been called an influential “Fasting Evangelist” by Time magazine.

Last month, he published a new study based on clinical trials of hundreds of older people — including in the Calabria town from which his family hails — that he said suggests that periodic cycles of his own faux-fasting approach could reduce biological age and stave off illnesses associated with aging.

“It’s very similar to the original Mediterranean diet, not the present one,” she said, pointing at photographs on the wall of a bowl of ancient legumes similar to the chickpe

“Almost nobody in Italy eats the Mediterranean diet,”

He added that many Italian children, especially in the country’s south, are obese, bloated on what he calls the poisonous five Ps — pizza, pasta, protein, potatoes and pane (or bread).

in recent years, Silicon Valley billionaires who hope to be forever young have funded secretive labs. Wellness articles have conquered newspaper home pages and Fountains-of-Youth workout and diet ads featuring insanely fit middle-aged people teem on the social media feeds of not insanely fit middle-aged people.

he said Italy’s lack of investment in research was a disgrace.

even as concepts like longevity, intermittent fasting and biological age — you’re only as old as your cells feel! — have gained momentum, governments like Italy’s are fretting over a creakier future in which booming populations of old people drain resources from the dwindling young.

many scientists, nutritionists and longevity fanatics the world over continue to stare longingly toward Italy, seeking in its deep pockets of centenarians a secret ingredient to long life.

“Probably they kept breeding between cousins and relatives,” Dr. Longo offered, referring to the sometimes close relations in little Italian hill towns. “At some point, we suspect it sort of generated the super-longevity genome.”

The genetic drawbacks of incest, he hypothesized, slowly vanished because those mutations either killed their carriers before they could reproduce or because the town noticed a monstrous ailment — like early onset Alzheimer’s — in a particular family line and steered clear.

Dr. Longo wonders whether Italy’s centenarians had been protected from later disease by a starvation period and old-fashioned Mediterranean diet early in life, during rural Italy’s abject war-era poverty. Then a boost of proteins and fats and modern medicine after Italy’s postwar economic miracle protected them from frailty as they got older and kept them alive.

At age 16, he moved to Chicago to live with relatives and couldn’t help notice that his middle-aged aunts and uncles fed on the “Chicago diet” of sausages and sugary drinks suffered diabetes and cardiovascular disease that their relatives back in Calabria did not.

He eventually earned his Ph.D in biochemistry at U.C.L.A. and did his postdoctoral training in the neurobiology of aging at U.S.C. He overcame early skepticism about the field to publish in top journals and became a zealous evangelizer for the age-reversing effects of his diet. About 10 years ago, eager to be closer to his aging parents in Genoa, he took a second job at the IFOM oncology institute in Milan.

He found a fount of inspiration in the pescatarian-heavy diet around Genoa and all the legumes down in Calabria.

he also found the modern Italian diet — the cured meats, layers of lasagna and fried vegetables the world hungered for — horrendous and a source of disease.

His private foundation, also based in Milan, tailors diets for cancer patients, but also consults for Italian companies and schools, promoting a Mediterranean diet that is actually foreign to most Italians today.

“Italy’s got such incredible history and a wealth of information about aging,” he said. “But spends virtually nothing.”

He talked about how he and others had identified an important regulator of aging in yeast, and how he has investigated whether the same pathway was at work in all organisms.

Dr. Longo said he thinks of his mission as extending youth and health, not simply putting more years on the clock, a goal he said could lead to a “scary world,” in which only the rich could afford to live for centuries, potentially forcing caps on having children

A more likely short-term scenario, he said, was division between two populations. The first would live as we do now and reach about 80 or longer through medical advancements. But Italians would be saddled with long — and, given the drop in the birthrate, potentially lonely — years burdened by horrible diseases.

The other population would follow fasting diets and scientific breakthroughs and live to 100 and perhaps 110 in relative good health.

But the legal wrangling to just get the courts to treat crypto as a set of speculative instruments regulated under securities law made the law moot

In May of 2022, a year after Gensler began trying to do something about Terra/Luna, Kwon’s scheme blew up. In a comically-too-late-to-matter gesture, an appeals court then said that the SEC had the right to compel information from Kwon’s now-bankrupt scheme. It is absolute lunacy that well-settled law, like the ability for the SEC to investigate those in the securities business, is now being re-litigated.

many crypto ‘enthusiasts’ watching Gensler discuss regulation with his predecessor “called for their incarceration or worse.”

it wasn’t just the courts who were an impediment. Gensler wasn’t the only cop on the beat. Other regulators, like those at the Commodities Futures Trading Commission, the Federal Reserve, or the Office of Comptroller of the Currency, not only refused to take action, but actively defended their regulatory turf against an attempt from the SEC to stop the scams.

Behind this was the fist of political power. Everyone saw the incentives the Senate laid down when every single Republican, plus a smattering of Democrats, defeated the nomination of crypto-skeptic Saule Omarova in becoming the powerful bank regulator at the Comptroller of the Currency

Instead of strong figures like Omarova, we had a weakling acting Comptroller Michael Hsu at the OCC, put there by the excessively cautious Treasury Secretary Janet Yellen. Hsu refused to stop bank interactions with crypto or fintech because, as he told Congress in 2021, “These trends cannot be stopped.”

It’s not just these regulators; everyone wanted a piece of the bureaucratic pie. In March of 2022, before it all unraveled, the Biden administration issued an executive order on crypto. In it, Biden said that virtually every single government agency would have a hand in the space.

That’s… insane. If everyone’s in charge, no one is.

And behind all of these fights was the money and political prestige of some most powerful people in Silicon Valley, who were funding a large political fight to write the rules for crypto, with everyone from former Treasury Secretary Larry Summers to former SEC Chair Mary Jo White on the payroll.

(Even now, even after it was all revealed as a Ponzi scheme, Congress is still trying to write rules favorable to the industry. It’s like, guys, stop it. There’s no more bribe money!)

Moreover, the institution Gensler took over was deeply weakened. Since the Reagan administration, wave after wave of political leader at the SEC has gutted the place and dumbed down the enforcers. Courts have tied up the commission in knots, and Congress has defanged it

Under Trump crypto exploded, because his SEC chair Jay Clayton had no real policy on crypto (and then immediately went into the industry after leaving.) The SEC was so dormant that when Gensler came into office, some senior lawyers actually revolted over his attempt to make them do work.

In other words, the regulators were tied up in the courts, they were against an immensely powerful set of venture capitalists who have poured money into Congress and D.C., they had feeble legal levers, and they had to deal with ‘crypto enthusiasts' who thought they should be jailed or harmed for trying to impose basic rules around market manipulation.

The bottom line is, Gensler is just one regulator, up against a lot of massed power, money, and bad institutional habits. And we as a society simply made the choice through our elected leaders to have little meaningful law enforcement in financial markets, which first became blindingly obvious in 2008 during the financial crisis, and then became comical ten years later when a sector whose only real use cases were money laundering

, Ponzi scheming or buying drugs on the internet, managed to rack up enough political power to bring Tony Blair and Bill Clinton to a conference held in a tax haven billed as ‘the future.’

It took a few years, but New Dealers finally implemented a workable set of securities rules, with the courts agreeing on basic definitions of what was a security. By the 1950s, SEC investigators could raise an eyebrow and change market behavior, and the amount of cheating in finance had dropped dramatically.

By 1935, the New Dealers had set up a new agency, the Securities and Exchange Commission, and cleaned out the FTC. Yet there was still immense concern that Roosevelt had not been able to tame Wall Street. The Supreme Court didn’t really ratify the SEC as a constitutional body until 1938, and nearly struck it down in 1935 when a conservative Supreme Court made it harder for the SEC to investigate cases.

Institutional change, in other words, takes time.

It’s a lesson to remember as we watch the crypto space melt down, with ex-billionaire Sam Bankman-Fried

It’s not like perfidy in crypto was some hidden secret. At the top of the market, back in December 2021, I wrote a piece very explicitly saying that crypto was a set of Ponzi schemes. It went viral, and I got a huge amount of hate mail from crypto types

one of the more bizarre aspects of the crypto meltdown is the deep anger not just at those who perpetrated it, but at those who were trying to stop the scam from going on. For instance, here’s crypto exchange Coinbase CEO Brian Armstrong, who just a year ago was fighting regulators vehemently, blaming the cops for allowing gambling in the casino he helps run.

FTX.com was an offshore exchange not regulated by the SEC. The problem is that the SEC failed to create regulatory clarity here in the US, so many American investors (and 95% of trading activity) went offshore. Punishing US companies for this makes no sense.

When the pandemic took hold in early 2020, air travel plummeted, and many aviation executives believed it would take years for passengers to return in large numbers. Boeing began to cut jobs and encouraged workers to take buyouts or retire early. It ultimately lost about 19,000 employees companywide — including some with decades of experience.

Current and former Boeing employees, most of whom spoke on the condition of anonymity because they were not authorized to speak to reporters and feared retaliation, offered examples of how quality has suffered over the years. Many said they still respected the company and its employees and wanted Boeing to succeed.

“For years, we prioritized the movement of the airplane through the factory over getting it done right, and that’s got to change,” Brian West, the company’s chief financial officer, said at an investor conference last week.

In late 2022, Boeing lost veteran engineers who retired to lock in bigger monthly pension payments, which were tied to interest rates, according to the union that represents them,

“We warned Boeing that it was going to lose a mountain of expertise, and we proposed some workarounds, but the company blew us off,” Ray Goforth, executive director of the union, said in a statement, adding that he thought the company used the retirements as an opportunity to cut costs by replacing veteran workers with “lower-paid entry-level engineers and technical workers.”

the International Association of Machinists and Aerospace Workers union, which represents more than 30,000 Boeing employees, said the average tenure of its members had dropped sharply in recent years. The proportion of its members who have less than six years of experience has roughly doubled to 50 percent from 25 percent before the pandemic.

Food prices have risen by another 6.1 per cent from already high levels in 2022

Soaring energy prices mean that 5.5 million Germans say they weren’t able to heat their house properly over the past year

there have been further investigations into his alleged connections to a tax fraud scheme that happened when he was mayor of Hamburg (Scholz denies any wrongdoing).

‘Food…petrol and energy: everything has become so expensive that I have nothing left at the end of the month. There was a time when I could go out sometimes, or go to the cinema. Such extras are no longer possible.’

three quarters said they had to make cuts in their spending on consumer items and leisure time activities.

Recent scandals and spectacular failings of his government have cemented the public’s impression of incompetence.

Only around a quarter think he is fit to be chancellor, down from over 60 per cent when he took office in December 2021.

Last month, a bombshell ruling by the constitutional court declared the creative accounting of his administration illegal, blowing a €60 billion (£52 billion) hole in public finances and an even bigger one in what remained of Scholz’s reputation as a crisis chancellor.

What’s worse is that he doesn’t appear to care about the increasing despair in his country. Naturally aloof, his mannerisms and rhetoric sometimes drift into outright dismissiveness

Currently only 15 per cent would vote for his centre-left Social Democrats (SPD). That marks a 10 point-drop in support from the last election and the lowest result in the SPD’s post-war history by some margin.

One would think that such catastrophic loss of confidence would lead to serious soul-searching by Scholz or, failing that, within the SPD, which still thinks of itself as one of Germany’s main political parties. But there is no sign of any such critical reflection.

I’ve seen arguments that it goes back to the 1978 Bakke decision, when the Supreme Court effectively greenlit affirmative action in the name of diversity.

the problem with Bakke isn’t that it allowed diversity to be a consideration in admissions decisions. It’s that university administrators turned an allowance into a requirement, so a kind of racial gerrymander now permeates nearly every aspect of academic life, from admissions decisions to faculty appointments to the racial makeup of contributors to essay collections

If affirmative action had been administered with a lighter hand — more nudge than mandate — it might have survived the court’s scrutiny last year. Instead, it became a pervasive regime that frequently got in the way of the universities’ higher goals, particularly the open exchange of ideas.

skin color was the first thing The Harvard Crimson noted in its story about her taking office, and her missteps and questions about her academic work gave ammunition to detractors who claimed she owed her position solely to her race.

This is the poisoned pool in which Harvard now swims. Whenever it elevates someone like Gay, there’s an assumption by admirers and detractors alike that she’s a political symbol whose performance represents more than who she is as a person

dehumanization is the price any institution pays when considerations of social engineering supplant those of individual achievement.

It may take a generation after the end of affirmative action before someone like Gay can have the opportunity to be judged on her own merits, irrespective of her color.

the damage that the social-justice model has done to higher education will take longer to repair. In 2015, 57 percent of Americans expressed high confidence in higher education, according to a Gallup survey. Last year, the number had fallen to 36 percent, and that was before the wave of antisemitic campus outbursts. At Harvard, early admission applications fell by 17 percent last fall.

Harvard also sets the tone for the rest of American higher ed — and for public attitudes toward it. One of the secrets of America’s postwar success wasn’t simply the caliber of U.S. universities. It was the respect they engendered among ordinary people who aspired to send their children to them.

That respect is now being eroded to the point of being erased. For good reason

People admire, and will strive for, excellence — both for its own sake and for the status it confers. But status without excellence is a rapidly wasting asset, especially when it comes with an exorbitant price. That’s the position of much of American academia today. Two hundred thousand dollars or more is a lot to pay for lessons in how to be an anti-racist.

the intellectual rot is pervasive and won’t stop spreading until universities return to the idea that their central purpose is to identify and nurture and liberate the best minds, not to engineer social utopias.

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.

The alarm is growing louder, but the German public remains unconvinced that the security of Germany and Europe has been fundamentally threatened by a newly aggressive Russia.

Mr. Pistorius’s status as one of the country’s most popular politicians has given him a freedom to speak that others — including his boss, Chancellor Olaf Scholz — do not enjoy.

The prospect of a re-elected Mr. Trump has German officials and many of their fellow NATO counterparts informally discussing whether the nearly 75-year-old alliance structure they are planning to celebrate in Washington this year can survive without the United States at its center. Many German officials say that Mr. Putin’s best strategic hope is NATO’s fracture.

Only a year ago NATO was celebrating a new sense of purpose and a new unity, and many were confidently predicting Mr. Putin was on the run.

now, with an undependable America, an aggressive Russia and a striving China, as well as a seemingly stalemated war in Ukraine and a deeply unpopular conflict in Gaza, German officials are beginning to talk about the emergence of a new, complicated and troubling world, with severe consequences for European and trans-Atlantic security.

some of Mr. Pistorius’s colleagues are warning that if American funding dries up and Russia prevails, its next target will be closer to Berlin.

“If Ukraine were forced to surrender, that would not satisfy Russia’s hunger for power,” the chief of Germany’s intelligence service, Bruno Kahl, said last week. “If the West does not demonstrate a clear readiness to defend, Putin will have no reason not to attack NATO anymore.”

In the decades since the Soviet Union collapsed, most Germans have grown accustomed to the notions that the country’s security would be assured if it worked with Russia, not against it, and that China is a necessary partner with a critical market for German automobiles and equipment.

Mr. Scholz, a Social Democrat whose party traditionally sought decent ties with Moscow, seems reluctant to discuss the far more confrontational future with Russia or China that German defense and intelligence chiefs describe so vividly.

few politicians will take on the subject in public. Mr. Scholz is especially careful, tending to Germany’s relationship with the United States and wary of pushing Russia and its unpredictable president too hard.

Mr. Scholz has moved with great caution. He has opposed — along with Mr. Biden — setting a timetable for Ukraine’s eventual entry into the alliance

The most vivid example of his caution is his continued refusal to provide Ukraine a long-range, air-launched cruise missile called the Taurus.

The Taurus has a range of more than 300 miles, meaning Ukraine could use it to strike deep into Russia. And Mr. Scholz is not willing to take that chance — nor is the country’s Bundestag, which voted against a resolution calling for the transfer. While the decision seems to fit German opinion, Mr. Scholz wants to avoid the subject.

Polls show that Germans want to see a more capable German military. But only 38 percent of those surveyed said they wanted their country to be more involved in international crises, the lowest figure since that question began to be asked in 2017, according to the Körber Foundation, which conducted the survey. Of that group, 76 percent said the engagement should be primarily diplomatic, and 71 percent were against a military leadership role for Germany in Europe.

German military officials recently set off a small outcry when they suggested that the country must be “kriegstüchtig,” which roughly translates to the ability to fight and win a war.

Norbert Röttgen, an opposition legislator and a foreign policy expert with the Christian Democrats, said the term was regarded as “rhetorical overreach” and quickly dropped.

“Scholz has always said that ‘Ukraine must not lose but Russia must not win,’ which indicated that he’s always thought of an impasse that would lead to a diplomatic process,” Mr. Röttgen said. “He thinks of Russia as more important than all the countries between us and them, and he lacks a European sense and of his possible role as a European leader.”

Mr. Scholz clearly feels most comfortable relying heavily on Washington, and senior German officials say he especially mistrusts Emmanuel Macron, the president of France, who has argued for European “strategic autonomy.” Mr. Macron has found few followers on the continent.

Even Mr. Scholz’s main European defense initiative, a coordinated ground-based air defense against ballistic missiles known as Sky Shield, depends on a mix of American, American-Israeli and German missile systems.

Mr. Scholz’s ambitions are also hamstrung by his increasingly weak economy. It shrank 0.3 percent last year, and roughly the same is expected in 2024. The cost of the Ukraine war and China’s economic problems — which have hit the auto and manufacturing sectors hardest — have exacerbated the problem.

While Mr. Scholz acknowledges that the world has changed, “he is not saying that we must change with it,” said Ulrich Speck, a German analyst.

“He is saying that the world has changed and that we will protect you,”

Germans, and even the Social Democrats, “have come to the realization that Germany lives in the real world and that hard power matters,”

“At the same time,” he said, “there’s still this hope that this is all just a bad dream, and Germans will wake up and be back in the old world.”

“We did things like bring over shrapnel from Ukraine, from cruise missiles that exploded in civilian areas, and put it on their desk and say, look, this is what we’re up against,” Murskyj said. “You know, this landed in somebody’s house, and now it’s in your office.”

“The intensity was high; there was energy in the air. And we realized that we needed to do everything that we possibly could to make this happen.” Murskyj said, adding that there were “dozens of organizations, and hundreds if not thousands of individuals, who worked hard” to get the legislation passed.

“I think the most effective thing [the Zelensky administration] did was, they listened, and then they gave the speaker space to work the issue,” said a person familiar with Johnson’s position, who spoke on the condition of anonymity because of the political sensitivity of the issue. “They took him at his word after that meeting with Zelensky in December.”

Johnson indicated early on that he would support the legislation if his main questions were addressed, those involved in the talks said. Over time, he became an ally.

“Up until that point, it had really been an aggressive pressure campaign,” the person said. “And really, from my view, it was having the opposite effect because it was just making the people who were ‘never Ukraine-ers’ say, ‘They’re just eviscerating you; they’re not interested in giving you space or what’s in America’s interests.’”

For Johnson, a Southern Baptist, arguments from fellow members of the evangelical community were particularly important, those involved in the process said. The speaker met numerous groups of religious leaders from the United States and Ukraine who pushed him to pass the aid bill.

American evangelicals helped dispel a narrative circulating in the conservative media that Ukraine was persecuting Christian communities, pointing out that it was in fact Russia that was restricting religious freedom.

Two sources said that during the early weeks of the war they were permitted to kill 15 or 20 civilians during airstrikes on low-ranking militants. Attacks on such targets were typically carried out using unguided munitions known as “dumb bombs”, the sources said, destroying entire homes and killing all their occupants.

“You don’t want to waste expensive bombs on unimportant people – it’s very expensive for the country and there’s a shortage [of those bombs],” one intelligence officer said. Another said the principal question they were faced with was whether the “collateral damage” to civilians allowed for an attack.

“Because we usually carried out the attacks with dumb bombs, and that meant literally dropping the whole house on its occupants. But even if an attack is averted, you don’t care – you immediately move on to the next target. Because of the system, the targets never end. You have another 36,000 waiting.”

ccording to conflict experts, if Israel has been using dumb bombs to flatten the homes of thousands of Palestinians who were linked, with the assistance of AI, to militant groups in Gaza, that could help explain the shockingly high death toll in the war.

Details about the specific kinds of data used to train Lavender’s algorithm, or how the programme reached its conclusions, are not included in the accounts published by +972 or Local Call. However, the sources said that during the first few weeks of the war, Unit 8200 refined Lavender’s algorithm and tweaked its search parameters.

Responding to the publication of the testimonies in +972 and Local Call, the IDF said in a statement that its operations were carried out in accordance with the rules of proportionality under international law. It said dumb bombs are “standard weaponry” that are used by IDF pilots in a manner that ensures “a high level of precision”.

“The IDF does not use an artificial intelligence system that identifies terrorist operatives or tries to predict whether a person is a terrorist,” it added. “Information systems are merely tools for analysts in the target identification process.”

In earlier military operations conducted by the IDF, producing human targets was often a more labour-intensive process. Multiple sources who described target development in previous wars to the Guardian, said the decision to “incriminate” an individual, or identify them as a legitimate target, would be discussed and then signed off by a legal adviser.

n the weeks and months after 7 October, this model for approving strikes on human targets was dramatically accelerated, according to the sources. As the IDF’s bombardment of Gaza intensified, they said, commanders demanded a continuous pipeline of targets.

“We were constantly being pressured: ‘Bring us more targets.’ They really shouted at us,” said one intelligence officer. “We were told: now we have to fuck up Hamas, no matter what the cost. Whatever you can, you bomb.”

Lavender was developed by the Israel Defense Forces’ elite intelligence division, Unit 8200, which is comparable to the US’s National Security Agency or GCHQ in the UK.

After randomly sampling and cross-checking its predictions, the unit concluded Lavender had achieved a 90% accuracy rate, the sources said, leading the IDF to approve its sweeping use as a target recommendation tool.

Lavender created a database of tens of thousands of individuals who were marked as predominantly low-ranking members of Hamas’s military wing, they added. This was used alongside another AI-based decision support system, called the Gospel, which recommended buildings and structures as targets rather than individuals.

The accounts include first-hand testimony of how intelligence officers worked with Lavender and how the reach of its dragnet could be adjusted. “At its peak, the system managed to generate 37,000 people as potential human targets,” one of the sources said. “But the numbers changed all the time, because it depends on where you set the bar of what a Hamas operative is.”

broadly, and then the machine started bringing us all kinds of civil defence personnel, police officers, on whom it would be a shame to waste bombs. They help the Hamas government, but they don’t really endanger soldiers.”

Before the war, US and Israeli estimated membership of Hamas’s military wing at approximately 25-30,000 people.

there was a decision to treat Palestinian men linked to Hamas’s military wing as potential targets, regardless of their rank or importance.

According to +972 and Local Call, the IDF judged it permissible to kill more than 100 civilians in attacks on a top-ranking Hamas officials. “We had a calculation for how many [civilians could be killed] for the brigade commander, how many [civilians] for a battalion commander, and so on,” one source said.

Another source, who justified the use of Lavender to help identify low-ranking targets, said that “when it comes to a junior militant, you don’t want to invest manpower and time in it”. They said that in wartime there was insufficient time to carefully “incriminate every target”

So you’re willing to take the margin of error of using artificial intelligence, risking collateral damage and civilians dying, and risking attacking by mistake, and to live with it,” they added.

When it came to targeting low-ranking Hamas and PIJ suspects, they said, the preference was to attack when they were believed to be at home. “We were not interested in killing [Hamas] operatives only when they were in a military building or engaged in a military activity,” one said. “It’s much easier to bomb a family’s home. The system is built to look for them in these situations.”

Such a strategy risked higher numbers of civilian casualties, and the sources said the IDF imposed pre-authorised limits on the number of civilians it deemed acceptable to kill in a strike aimed at a single Hamas militant. The ratio was said to have changed over time, and varied according to the seniority of the target.

The IDF’s targeting processes in the most intensive phase of the bombardment were also relaxed, they said. “There was a completely permissive policy regarding the casualties of [bombing] operations,” one source said. “A policy so permissive that in my opinion it had an element of revenge.”

“There were regulations, but they were just very lenient,” another added. “We’ve killed people with collateral damage in the high double digits, if not low triple digits. These are things that haven’t happened before.” There appears to have been significant fluctuations in the figure that military commanders would tolerate at different stages of the war

One source said that the limit on permitted civilian casualties “went up and down” over time, and at one point was as low as five. During the first week of the conflict, the source said, permission was given to kill 15 non-combatants to take out junior militants in Gaza

at one stage earlier in the war they were authorised to kill up to “20 uninvolved civilians” for a single operative, regardless of their rank, military importance, or age.

“It’s not just that you can kill any person who is a Hamas soldier, which is clearly permitted and legitimate in terms of international law,” they said. “But they directly tell you: ‘You are allowed to kill them along with many civilians.’ … In practice, the proportionality criterion did not exist.”

Experts in international humanitarian law who spoke to the Guardian expressed alarm at accounts of the IDF accepting and pre-authorising collateral damage ratios as high as 20 civilians, particularly for lower-ranking militants. They said militaries must assess proportionality for each individual strike.

An international law expert at the US state department said they had “never remotely heard of a one to 15 ratio being deemed acceptable, especially for lower-level combatants. There’s a lot of leeway, but that strikes me as extreme”.

Sarah Harrison, a former lawyer at the US Department of Defense, now an analyst at Crisis Group, said: “While there may be certain occasions where 15 collateral civilian deaths could be proportionate, there are other times where it definitely wouldn’t be. You can’t just set a tolerable number for a category of targets and say that it’ll be lawfully proportionate in each case.”

Whatever the legal or moral justification for Israel’s bombing strategy, some of its intelligence officers appear now to be questioning the approach set by their commanders. “No one thought about what to do afterward, when the war is over, or how it will be possible to live in Gaza,” one said.

Another said that after the 7 October attacks by Hamas, the atmosphere in the IDF was “painful and vindictive”. “There was a dissonance: on the one hand, people here were frustrated that we were not attacking enough. On the other hand, you see at the end of the day that another thousand Gazans have died, most of them civilians.”

Crew members like my Panamanian cabin attendant seem to work 24 hours a day. A waiter from New Delhi tells me that his contract is six months and three weeks long. After a cruise ends, he says, “in a few hours, we start again for the next cruise.” At the end of the half a year at sea, he is allowed a two-to-three-month stay at home with his family. As of 2019, the median income for crew members was somewhere in the vicinity of $20,000, according to a major business publication. Royal Caribbean would not share the current median salary for its crew members, but I am certain that it amounts to a fraction of the cost of a Royal Bling gold-plated, zirconia-studded chalice.

It is also unseemly to write about the kind of people who go on cruises. Our country does not provide the education and upbringing that allow its citizens an interior life. For the creative class to point fingers at the large, breasty gentlemen adrift in tortilla-chip-laden pools of water is to gather a sour harvest of low-hanging fruit.

“We have an outstanding mayor, who is committed to tackling climate change. She said the 15-minute city will be the backbone for creating a new urban plan. The last time Paris had a new urban plan was in 2000, so this road map will be relevant for the next 10 or 15 years at least,”

“I said to Hidalgo, the 15-minute city is not an urban traffic plan. The 15-minute city is a radical change of our life.”

He also thinks office should generally be closer to homes, as well as cultural venues, doctors, shops and other amenities. Shared spaces such as parks help the people living in the areas to form communities.

They have also often been segmented into wealthier and poorer areas; in the less prosperous area to the north-east of Paris, Moreno says up to 40% of homes are social housing. In the wealthier west of Paris, this drops below 5%.

“My idea is to break this triple segregation,” he says.

Moreno thinks this segregation leads to a poorer quality of life, one designed around outdated “masculine desires”, so his proposal is to mix this up, creating housing developments with a mixture of social, affordable and more expensive housing so different social strata can intermingle

He also wants to bring schools and children’s areas closer to work and home, so caregivers can more easily travel around and participate in societ

When many modern cities were designed, they were for men to work in. Their wives and family stayed in the suburbs, while the workers drove in. So they have been designed around the car, and segmented into different districts: the financial district (think Canary Wharf), the cultural area (for example, the West End) and then the suburbs

The city has also been regenerating the Clichy-Batignolles district in the less prosperous north-west of Paris to have a green, village-like feel. About a quarter of it is taken up by green space and a new park.“As a 15-minute district, it is incredible,” says Moreno. “It is beautiful, it has proximity, social mixing, 50% of the inhabitants live in social housing, 25% in middle class and 25% own their homes.”

Many of his proposals are dear to the culture of the French. In a large, wealthy metropolis such as Paris, it is easy for small shops to be choked out by large chains. The city of Paris, in its new plan, has put measures in to stop this.

“We have a commercial subsidiary of the city of Paris which has put €200m into managing retail areas in the city with rates below the speculative real estate market. This is specifically to rent to small shops, artisans, bakeries, bookstores.

This is not only a good investment because it creates a good economic model, but it keeps the culture of the city of Paris,”

This is in keeping with the 15-minute city plan as it keeps local shops close to housing, so people can stroll down from their apartment to pick up a fresh baguette from an independent baker. “It creates a more vibrant neighbourhood,” he adds.

Hidalgo inevitably faced a large backlash from the motorist lobby. Stroll down the banks of the Seine today in the new protected parks and outdoor bars, and it is hard to imagine that it was recently a traffic-choked highway

“The drivers were radically very noisy, saying that we wanted to attack their individual rights, their freedom. The motorist lobby said she cannot be elected without our support, that they are very powerful in France,” Moreno says. But Hidalgo called their bluff: “She often says ‘I was elected two times, with the opposition of the automotive lobby’. In 2024, nobody requests to open again the highway on the Seine, no one wants the Seine urban park to be open for cars.”

Moreno talks about the concept of a “giant metronome of the city” which causes people to rush around. He wants to slow this down, to allow people to reclaim their “useful time” back from commuting and travelling to shops and cultural areas.

“I bet for the next year, for the next decade, we will have this new transformation of corporation real estate,” he says. “Businesses are choosing multi-use areas with housing, schools, shops for their office space now. The time of the skyscrapers in the masculine design is finished.”

the model’s calculations took into account trends in pollution levels, population growth, the amount of natural resources and the overall quality of life on Earth. The model’s predictions for the worsening quality of life and the dwindling natural resources have so far been unnervingly on target.

“At around 2020, the condition of the planet becomes highly critical. If we do nothing about it, the quality of life goes down to zero. Pollution becomes so seriously it will start to kill people, which in turn will cause the population to diminish, lower than it was in the 1900. At this stage, around 2040 to 2050, civilised life as we know it on this planet will cease to exist.”

Alexander King, the then-leader of the Club of Rome, evaluated the program’s results to also mean that nation-states will lose their sovereignty, forecasting a New World Order with corporations managing everything.

“Sovereignty of nations is no longer absolute,” King told ABC. “There is a gradual diminishing of sovereignty, little bit by little bit. Even in the big nations, this will happen.”

Before the pandemic, a number of variables were statistically significant indicators for consumer sentiment in our model; in particular, the most salient variables appear to be vehicle sales, gas prices, median household income, the federal funds effective rate, personal savings and household expenditures (excluding food and energy).

During the pandemic, the personal savings rate soared. In April 2020, the metric was nearly double its previous high, recorded in May 1975.

All this taken together meant Americans were flush with cash but had nowhere to spend it. So despite the fact that the savings rate went way up, consumers still weren't feeling positively about the economy — contrary to the relationship between these two variables we saw in the decades before the pandemic.

Fast forward to 2024, and the personal savings rate has dropped to one of its lowest levels ever (the only time the savings rate was lower was in the years surrounding the Great Recession)

during and after the pandemic, Americans saw some of the highest rates of inflation the country has had in decades, and in a very short period of time. These sudden spikes naturally shocked many people who had been blissfully enjoying slow, steady price growth their entire adult lives. And it has taken a while for that shock to wear off, even as inflation has cre

the numbers align with our intuitive sense of how consumers process suddenly having their grocery store bill jump, as well as the findings from our model. In simple terms: Even if inflation is getting better, Americans aren't done being ticked off that it was bad to begin with.

surprisingly, our pre-pandemic model didn't find a notable relationship between housing prices and consumer sentiment

However, in our post-pandemic data, when we examined how correlated consumer sentiment was with each indicator we considered, consumer sentiment and median housing prices had the strongest correlation of all****** (a negative one, meaning higher prices were associated with lower consumer sentiment)

during the pandemic, low interest rates, high savings rates and changes in working patterns — namely, many workers' newfound ability to work from home — helped overheat the homebuying market, and buyers ran headlong into an enduring supply shortage. There simply weren't enough houses to buy, which drove up the costs of the ones that were for sale.

That's true even if a family has been able to save enough for a down payment, already a difficult task when rents remain high as well. Fewer people are able to cover their current housing costs while saving enough to make a down payment.

Low-income households are still the most likely to be burdened with high rents, but they're not the only ones affected anymore. High rents have also begun to affect those at middle-income levels as well.

In short, there was already a housing affordability crisis before the pandemic. Now it's worse, locking a wider array of people, at higher and higher income levels, out of the home-buying market

People who are renting but want to buy are stuck. People who live in starter homes and want to move to bigger homes are stuck. The conditions have frustrated a fundamental element of the American dream

In our pre-pandemic model, total vehicle sales had a strong positive relationship with consumer sentiment: If people were buying cars, you could pretty reasonably bet that they felt good about the economy. This feels intuitive — who buys a car if they think the economy

Cox Automotive also tracks vehicle affordability by calculating the estimated number of weeks' worth of median income needed to purchase the average new vehicle, and while that number has improved over the last two years, it remains high compared to pre-pandemic levels. In April, the most recent month with data, it took 37.7 weeks of median income to purchase a car, compared with fewer than 35 weeks at the end of 2019.

"Right before the pandemic, the typical average transaction price was around $38,000 for a new car. By 2023, it was $48,000," Schirmer said. This could all be contributing to the break in the relationship between car sales and sentiment, he noted. Basically, people might be buying cars, but they aren't necessarily happy about it.

Inspired by our model of economic indicators and sentiment from 1987 to 2019, we tried to train a similar linear regression model on the same data from 2021 to 2024 to more directly compare how things changed after the pandemic. While we were able to get a pretty good fit for this post-pandemic model,******* something interesting happened: Not a single variable showed up as a statistically significant predictor of consumer sentiment.

This suggests there's something much more complicated going on behind the scenes: Interactions between these variables are probably driving the prediction, and there's too much noise in this small post-pandemic data set for the model to disentangle i

Changes in the kinds of purchases we've discussed — homes, cars and everyday items like groceries — have fundamentally shifted the way Americans view how affordable their lives are and how they measure their quality of life.