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Teachers are not only burnt out and undercompensated, they are also demoralized. They are being asked to do things in the name of teaching that they believe are mis-educational and harmful to students and the profession. What made this work good for them is no longer accessible. That is why we are hearing so many refrains of “I’m not leaving the profession, my profession left me.”

We find there are at least 36,000 vacant positions along with at least 163,000 positions being held by underqualified teachers, both of which are conservative estimates of the extent of teacher shortages nationally.

“The current problem of teacher shortages (I would further break this down into vacancy and under-qualification) is higher than normal.” The data, Nguyen continued, “indicate that shortages are worsening over time, particularly over the last few years

a growing gap between the pay of all college graduates and teacher salaries from 1979 to 2021, with a sharp increase in the differential since 2010

The number of qualified teachers is declining for the whole country and the vast majority of states.

Wages are essentially unchanged from 2000 to 2020 after adjusting for inflation. Teachers have about the same number of students. But, teacher accountability reforms have increased the demands on their positions.

The pandemic was very difficult for teachers. Their self-reported level of stress was about as twice as high during the pandemic compared to other working adults. Teachers had to worry both about their personal safety and deal with teaching/caring for students who are grieving lost family members.

the number of students graduating from college with bachelor’s degrees in education fell from 176,307 in 1970-71 to 104,008 in 2010-11 to 85,058 in 2019-20.

We do see that southern states (e.g., Mississippi, Alabama, Georgia and Florida) have very high vacancies and high vacancy rates.”

By 2021, teachers made $1,348, 32.9 percent less than what other graduates made, at $2,009.

These gaps play a significant role in determining the quality of teachers,

Sixty percent of teachers and 65 percent of principals reported believing that systemic racism exists. Only about 20 percent of teachers and principals reported that they believe systemic racism does not exist, and the remainder were not sure

“We find,” they write, “that teachers’ cognitive skills differ widely among nations — and that these differences matter greatly for students’ success in school. An increase of one standard deviation in teacher cognitive skills is associated with an increase of 10 to 15 percent of a standard deviation in student performance.”

teachers have lower cognitive skills, on average, in countries with greater nonteaching job opportunities for women in high-skill occupations and where teaching pays relatively less than other professions.

the scholars found that the cognitive skills of teachers in the United States fell in the middle ranks:Teachers in the United States perform worse than the average teacher sample-wide in numeracy, with a median score of 284 points out of a possible 500, compared to the sample-wide average of 292 points. In literacy, they perform slightly better than average, with a median score of 301 points compared to the sample-wide average of 295 points.

Increasing teacher numeracy skills by one standard deviation increases student performance by nearly 15 percent of a standard deviation on the PISA math test. Our estimate of the effect of increasing teacher literacy skills on students’ reading performance is slightly smaller, at 10 percent of a standard deviation.

How, then, to raise teacher skill level in the United States? Hanushek and his two colleagues have a simple answer: raise teacher pay to make it as attractive to college graduates as high-skill jobs in other fields.

policymakers will need to do more than raise teacher pay across the board to ensure positive results. They must ensure that higher salaries go to more effective teachers.

The teaching of disputed subjects in schools has compounded many of the difficulties in American education.

The researchers found that controversies over critical race theory, sex education and transgender issues — aggravated by divisive debates over responses to Covid and its aftermath — are inflicting a heavy toll on teachers and principals.

“On top of the herculean task of carrying out the essential functions of their jobs,” they write, “educators increasingly find themselves in the position of addressing contentious, politicized issues in their schools as the United States has experienced increasing political polarization.”

Teachers and principals, they add, “have been pulled in multiple directions as they try to balance and reconcile not only their own beliefs on such matters but also the beliefs of others around them, including their leaders, fellow staff, students, and students’ family members.”

These conflicting pressures take place in a climate where “emotions in response to these issues have run high within communities, resulting in the harassment of educators, bans against literature depicting diverse characters, and calls for increased parental involvement in deciding academic content.”

Forty-eight percent of principals and 40 percent of teachers reported that the intrusion of political issues and opinions in school leadership or teaching, respectively, was a job-related stressor. By comparison, only 16 percent of working adults indicated that the intrusion of political issues and opinions in their jobs was a source of job-related stress

In 1979, the average teacher weekly salary (in 2021 dollars) was $1,052, 22.9 percent less than other college graduates’, at $1,364

Nearly all Black or African American principals (92 percent) and teachers (87 percent) reported believing that systemic racism exists.

White educators working in predominantly white school systems reported substantially more pressure to deal with politically divisive issues than educators of color and those working in mostly minority schools: “Forty-one percent of white teachers and 52 percent of white teachers and principals selected the intrusion of political issues and opinions into their professions as a job-related stressor, compared with 36 percent of teachers of color and principals of color.

and opinions into their professions as a job-related stressor, compar

A 54 percent majority of teachers and principals said there “should not be legal limits on classroom conversations about racism, sexism, and other topics,” while 20 percent said there should be legislated constraint

Voters, in turn, are highly polarized on the teaching of issues impinging on race or ethnicity in public schools. The Education Next 2022 Survey asked, for example:Some people think their local public schools place too little emphasis on slavery, racism and other challenges faced by Black people in the United States. Other people think their local public schools place too much emphasis on these topics. What is your view about your local public schools?

Among Democrats, 55 percent said too little emphasis was placed on slavery, racism and other challenges faced by Black people, and 8 percent said too much.

Among Republicans, 51 said too much and 10 percent said too little.

Because of the lack of reliable national data, there is widespread disagreement among scholars of education over the scope and severity of the shortage of credentialed teachers, although there is more agreement that these problems are worse in low-income, high majority-minority school systems and in STEM and special education faculties.

Public schools increasingly are targets of conservative political groups focusing on what they term “Critical Race Theory,” as well as issues of sexuality and gender identity. These political conflicts have created a broad chilling effect that has limited opportunities for students to practice respectful dialogue on controversial topics and made it harder to address rampant misinformation.

The chilling effect also has led to marked declines in general support for teaching about race, racism, and racial and ethnic diversity.

These political conflicts, the authors wrote,have made the already hard work of public education more difficult, undermining school management, negatively impacting staff, and heightening student stress and anxiety. Several principals shared that they were reconsidering their own roles in public education in light of the rage at teachers and rage at administrators’ playing out in their communities.

State University of New York tracked trends on “four interrelated constructs: professional prestige, interest among students, preparation for entry, and job satisfaction” for 50 years, from the 1970s to the present and founda consistent and dynamic pattern across every measure: a rapid decline in the 1970s, a swift rise in the 1980s, relative stability for two decades, and a sustained drop beginning around 2010. The current state of the teaching profession is at or near its lowest levels in 50 years.

Who among the next generation of college graduates will choose to teach?

Perceptions of teacher prestige have fallen between 20 percent and 47 percent in the last decade to be at or near the lowest levels recorded over the last half century

Interest in the teaching profession among high school seniors and college freshmen has fallen 50 percent since the 1990s, and 38 percent since 2010, reaching the lowest level in the last 50 years

the proportion of college graduates that go into teaching is at a 50-year low

Teachers’ job satisfaction is also at the lowest level in five decades, with the percent of teachers who feel the stress of their job is worth it dropping from 81 percent to 42 percent in the last 15 years

The combination of these factors — declining prestige, lower pay than other professions that require a college education, increased workloads, and political and ideological pressures — is creating both intended and unintended consequences for teacher accountability reforms mandating tougher licensing rules, evaluations and skill testing.

Education policy over the past decade has focused considerable effort on improving human capital in schools through teacher accountability. These reforms, and the research upon which they drew, were based on strong assumptions about how accountability would affect who decided to become a teacher. Counter to most assumptions, our findings document how teacher accountability reduced the supply of new teacher candidates by, in part, decreasing perceived job security, satisfaction and autonomy.

The reforms, Kraft and colleagues continued, increasedthe likelihood that schools could not fill vacant teaching positions. Even more concerning, effects on unfilled vacancies were concentrated in hard-to-staff schools that often serve larger populations of low-income students and students of color

We find that evaluation reforms increased the quality of newly hired novice teachers by reducing the number of teachers that graduated from the least selective institutions

We find no evidence that evaluation reforms served to attract teachers who attended the most selective undergraduate institutions.

In other words, the economic incentives, salary structure and work-life pressures characteristic of public education employment have created a climate in which contemporary education reforms have perverse and unintended consequences that can worsen rather than alleviate the problems facing school systems.

If so, to improve the overall quality of the nation’s more than three million public schoolteachers, reformers may want to give priority to paychecks, working conditions, teacher autonomy and punishing workloads before attempting to impose higher standards, tougher evaluations and less job security.

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.

Three years since its start we are still more likely to see the pandemic in partisan rather than world-historical terms. And the grandly tragic story of the pandemic takes on a profoundly different shape and color depending on the nature of its first act.

In a world where a natural origin was confirmed beyond all doubt, we might look back and narrate the pandemic as one particular kind of story: a morality tale showcasing the incomplete triumph of modern civilization and the enduring threats from nature, and highlighting the way that, whatever we might have told ourselves in 2019 or 2009 about the fortress of the wealthy world, pandemic disease remained a humbling civilization-scale challenge no nation had very good answers for.

in a world where a lab-leak origin had been confirmed instead, we would probably find ourselves telling a very different set of stories — primarily about humanity’s Icarian hubris, or perhaps about scientists’ Faustian indifference to the downside risks of new research, or the way in which very human impulses to cover up mistakes and wrongdoing might have compounded those mistakes to disastrous global effect.

It would have been, “We brought this on ourselves.” Or perhaps, if we were feeling xenophobic rather than humbly human, “They brought this on us,”

the pandemic would probably have joined nuclear weapons as a conventional illustration of the dark side of human knowledge, perhaps even surpassed them — 20 million dead is nothing to trifle with, after all, though it remains less than the overall death toll of World War II or even the Great Leap Forward.

the horror would also offer a silver lining: If human action was responsible for this pandemic, then in theory, human action could prevent the next one as well.

It is as though we’ve decided both that the pandemic was “man-made” and that its emergence was a kind of inevitability we can’t do much about.

if the figures are even mostly reliable, they reflect a remarkable indifference on the part of the country to the source of a once-in-a-century disease disaster

a definitive confirmation of a lab origin probably would not mean that responsibility lay in any simplistic way with China. But that isn’t to say the case wouldn’t have been made, probably in a variety of forms — calls for “reparations,” demands for global provision of free vaccines — that would only have contributed additional antagonism and resentment to the world stage, further polarizing the great-power landscape.

It would be as though following a catastrophic earthquake, we didn’t bother to sort out whether it had been caused by local fracking but instead argued endlessly about the imperfections of disaster response

as we piece together a working history of the past few years, you might hope we’d grow more focused on nailing the story down.

it seems likely to me that in the very earliest days of 2020, with cases exploding in China but not yet elsewhere, knowing that the disease was a result of gain-of-function research and had escaped from a lab probably would have produced an even more significant wave of global fear

it is hard to think “superbug” and not panic.

presumably, many fewer people contemplating the initial news would’ve assumed that the outbreak would be largely limited to Asia, as previous outbreaks had been; public health messengers in places like the United States probably would not have so casually reassuring; and even more dramatic circuit-breaking responses like a monthlong international travel ban might’ve been instituted quite quickly

As the pandemic wore on, I suspect that effect would have lingered beyond the initial panic. At first, it might’ve been harder to decide that the virus was just something to live with if we knew simultaneously that it was something introduced to the world in error.

And later, when the vaccines arrived, I suspect there might have been considerably less resistance to them, particularly on the American right, where anxiety and xenophobia might have trumped public-health skepticism and legacy anti-vaccine sentiment

the opposite counterfactual is just as illuminating

The question and its unresolvability have mattered enormously for geopolitics,

n a world where neither narrative has been confirmed, and where pandemic origins are governed by an epistemological fog, I worry we have begun to collate the two stories in a somewhat paradoxical and self-defeating way

The disease and global response may well have accelerated our “new Cold War,” as Luce writes, but it is hard to imagine an alternate history where a known lab-leak origin didn’t move the world there much faster.

On the other hand, the natural logic of a confirmed zoonotic origin would probably have been to push nations of the world closer together into networks of collaboration and cooperation

the direction of change would have most likely been toward more integration rather than less. After all, this is to some degree what happened in the wake of the initial outbreaks of SARS and MERS and the Ebola outbreaks of the past decade.

Instead, the geopolitics remain unsteady, which is to say, a bit jagged

The United States can weaponize a narrative about lab origin — as China hawks in both the Trump and Biden administrations have repeatedly done — without worrying too much about providing real proof or suffering concrete backlash.

And China can stonewall origin investigations by citing sovereignty rights and a smoke screen story about the disease originating in frozen food shipped in from abroad without paying much of an international price for the intransigence or bad-faith argumentation, either.

each has carried forward a gripe that needn’t be substantiated in order to be deployed.

ambiguity also offers plausible deniability, which means that without considerably more Chinese transparency and cooperation, those pushing both stories will find themselves still making only probabilistic cases. We’re probably going to be living with that uncertainty, in a political and social world shaped by it, for the foreseeable future

The result is that less energy is being produced overall, and Germany is loath to buy it from France—where power is much cleaner, because it’s mostly nuclear.

So who absorbed the adjustment? Easy: industry, the old backbone of the German manufacturing state, which has been closing production facilities in significant numbers.

This does not, of course, reduce the overall atmospheric pollution generated in the world, as the old clients of German firms turn to alternatives in other locations that are, almost always, fueled with high carbon sources. The Indonesian, Brazilian, Indian and Chinese companies that will now manufacture the products that German workers used to make are largely run on fossil fuels.

Part of the problem is that there are inherent technical limitations to how high a country can drive wind and solar in its energy mix. State of the art lithium-ion batteries can only store energy in the range of megawatts, up to the low gigawatts. In order to store electricity to survive a German winter with next to no sunlight and long low-wind periods, the country would need to increase its storage capacity by orders of magnitude.

There are only three presently known energy sources that can be used at scale to balance a natural grid: hydroelectricity, nuclear and fossil fuels

hey decided to simply make do with less power: economic degrowth in action. Of course, people depended on those power sources for jobs: good, well-paid, stable union jobs that guys without university degrees could get. The government closed down the factories—can they really be surprised some of these people now want to vote for the far right?

Germany didn’t adopt degrowth by choice, but through a series of blunders. The comic edge of its misfortunes is that so many of them occurred because of miscalculation or just sheer bloody-mindedness on the part of the Greens and Social Democrats. First, a few months before becoming a Russian energy lobbyist in 2005, then-Chancellor Gerhard Schröder insisted on putting Russian natural gas at the core of Germany’s energy grid, continuing a Social Democratic tradition of entwining Germany’s future with Russia’s. Then, a Green Party with its roots in 1970s anti-nuclear weapons activism carried this atavistic policy into the 21st century when it entered government, insisting that Germany decommission the backbone of its zero-emission energy matrix. Then the war in Ukraine happened, and the pipelines were cut. Oooops. Guess who’s digging for coal now?

But only a handful of cancers—of the breast, lung, colon and cervix—have screening tests recommended by the U.S. Preventive Services Task Force

Many companies are developing blood tests that can detect cancer signals before symptoms occur, and Grail’s is the most advanced. A study found it can identify more than 50 types of cancer 52% of the time and the 12 deadliest cancers in Stages I through III 68% of the time.

There’s a hitch. The test costs $949 and isn’t covered by Medicare or most private insurance.

The trouble is that this cancer is almost never caught early. There’s no routine screening for it, and symptoms don’t develop until it is advanced. Mr. Royse, 64, had no idea he was sick until he took a blood test called Galleri, produced by the Menlo Park, Calif., startup Grail. He had surgery and chemotherapy and is now cancer-free.

Mr. Royse visited Grail’s website, which referred him to a telemedicine provider who ordered a test. Another telemedicine doctor walked him through his results, which showed a cancer signal likely emanating from the pancreas, gallbladder, stomach or esophagus.

An MRI revealed a suspicious mass on his pancreas, which a biopsy confirmed was cancerous. Mr. Royse had three months of chemotherapy, surgery and another three months of chemotherapy, which ended last February. Because pancreatic cancer often recurs, he gets CT and MRI scans every three months. In addition, he has signed up for startup Natera’s Signatera customized blood test, which checks DNA specific to the patient’s cancer and can signal its return before signs are visible on the scans

Grail’s test likewise looks for DNA shed by cancer cells, which is tagged by molecules called methyl groups that are specific to a cancer’s origin. Grail uses genetic sequencing and machine learning to recognize links between DNA methyl groups and particular cancers

The test “is based on how much DNA is being shed by tumor,” Grail’s president, Josh Ofman, says. “Some tumors shed a lot of DNA. Some shed almost none.

ut slow-growing tumors typically aren’t shedding a lot of DNA.” That reduces the probability that Grail’s test will identify indolent cancers that pose no immediate danger.

Grail’s test has a roughly 0.5% false-positive rate, meaning 1 in 200 patients who don’t have cancer will get a positive signal

Its positive predictive value is 43%, so that of every 100 patients with a positive signal, 43 actually have cancer

the legislation’s price tag could reduce political support. According to one private company’s estimate, the test could cost the government $39 billion to $145 billion over a decade. Mr. Goldman counters that analysts usually overestimate the costs and underestimate the benefits of medical interventions.

Because Grail uses machine learning to detect DNA-methylation cancer linkages, the Grail test’s accuracy should improve as more tests and patient data are collected

regulators may balk at approving the test, and insurers at covering it, until it becomes cheaper and more reliable.

How would the FDA weigh the risk that a false positive on a test like Grail’s could require invasive follow-up testing against the dire but hard-to-quantify risk that a deadly cancer wouldn’t be caught until it’s much harder to treat? It’s unclear.

some experts urge the FDA to require large randomized controlled trials before approving blood cancer tests. “Multicancer screening would entail tremendous costs and potentially substantial harms,” H. Gilbert Welch and Tanujit Dey of Brigham and Women’s Hospital wrote

Dr. Welch and Mr. Dey also suggested that companies should be required to prove their tests reduce overall mortality, even though the FDA doesn’t require drugmakers to prove their products reduce deaths or extend life. Clinical trials for the mRNA Covid vaccines didn’t show they reduced deaths.

One alternative is to rely on real-world studies, which Grail is already doing. One study of patients 50 and older without signs of cancer showed that the test doubled the number of cancers detected.

One recurring problem he has seen: “Epidemiologists are always getting cancer wrong,” he says. “Epidemiologists a decade ago said U.S. overtreats cancers. Well, no, the EU undertreats cancer.”

A 2012 study that he co-authored found that the higher U.S. spending on cancer care relative to Europe between 1983 and 1999 resulted in significantly higher survival rates for American patients than for those in Europe

By his study’s calculation, U.S. spending on cancer treatments during that period resulted in $556 billion in net benefits owing to reduced mortality.

He expects Galleri and other multicancer early-detection tests to reduce deaths and produce public-health and economic benefits that exceed their monetary costs

Expanding access to multicancer early-detection tests could also help solve the chicken-and-egg problem of drug development. Because few patients are diagnosed at early stages of some cancers, it’s hard to develop treatments for them

the positive predictive value for some recommended cancer screenings is far lower. Fewer than 1 in 10 women with an abnormal finding on a mammogram are diagnosed with breast cancer.

Mr. Royse makes the same point with personal force. “I would be dead right now if not for multicancer early-detection testing,” Mr. Royse told an FDA advisory committee last fall. “The longer the FDA waits, the more people are going to die. It’s that simple.”

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.

“So far we’re seeing basic agreement with our best model of the universe, but we’re also seeing some potentially interesting differences that could indicate that dark energy is evolving with time,”

When the scientists combined their map with other cosmological data, they were surprised to find that it did not quite agree with the otherwise reliable standard model of the universe, which assumes that dark energy is constant and unchanging. A varying dark energy fit the data points better.

“It’s certainly more than a curiosity,” Dr. Palanque-Delabrouille said. “I would call it a hint. Yeah, it’s not yet evidence, but it’s interesting.”

But this version of dark energy is merely the simplest one. “With DESI we now have achieved a precision that allows us to go beyond that simple model,” Dr. Palanque-Delabrouille said, “to see if the density of dark energy is constant over time, or if it has some fluctuations and evolution with time.”

“While combining data sets is tricky, and these are early results from DESI, the possible evidence that dark energy is not constant is the best news I have heard since cosmic acceleration was firmly established 20-plus years ago.”

praised the new survey as “superb data.” The results, she said, “open the potential for a new window into understanding dark energy, the dominant component of the universe, which remains the biggest mystery in cosmology. Pretty exciting.”

what if dark energy were not constant as the cosmological model assumed?

At issue is a parameter called w, which is a measure of the density, or vehemence, of the dark energy. In Einstein’s version of dark energy, this number remains constant, with a value of –1, throughout the life of the universe. Cosmologists have been using this value in their models for the past 25 years.

Dark energy took its place in the standard model of the universe known as L.C.D.M., composed of 70 percent dark energy (Lambda), 25 percent cold dark matter (an assortment of slow-moving exotic particles) and 5 percent atomic matter. So far that model has been bruised but not broken by the new James Webb Space Telescope

As a measure of distance, the researchers used bumps in the cosmic distribution of galaxies, known as baryon acoustic oscillations. These bumps were imprinted on the cosmos by sound waves in the hot plasma that filled the universe when it was just 380,000 years old. Back then, the bumps were a half-million light-years across. Now, 13.5 billion years later, the universe has expanded a thousandfold, and the bumps — which are now 500 million light-years across — serve as convenient cosmic measuring sticks.

The DESI scientists divided the past 11 billion years of cosmic history into seven spans of time. (The universe is 13.8 billion years old.) For each, they measured the size of these bumps and how fast the galaxies in them were speeding away from us and from each other.

When the researchers put it all together, they found that the usual assumption — a constant dark energy — didn’t work to describe the expansion of the universe. Galaxies in the three most recent epochs appeared closer than they should have been, suggesting that dark energy could be evolving with time.

Dr. Riess of Johns Hopkins, who had an early look at the DESI results, noted that the “hint,” if validated, could pull the rug out from other cosmological measurements, such as the age or size of the universe. “This result is very interesting and we should take it seriously,” he wrote in his email. “Otherwise why else do we do these experiments?”

I showed that passage to an intelligent, well-educated person much younger than I am. He understood Orwell’s intention, but he confessed that he found the parody, with its colorless polysyllables, easier to understand — he might have said “more accessible” — than the plain words of the original. It felt better to him than the original.

Dilution of meaning is familiar in a way that can make us feel comfortable, or even worse, comfortably righteous

The reliably available terms of disapproval and approval, genocide and patriotism, antisemitism and democracy, convey large scale and importance, but sometimes while avoiding the heavy cost of paying actual attention.

The more important the word, the more its meaning may be a matter of degree, from not much to quite a lot. The attainment of meaning requires work. The more important the meaning, the harder the work.

Rising inflation has led to surging prices for groceries, cars and many essentials. The cost of a college education has skyrocketed in two decades, with the average student debt for federal loans at $37,000, according to the Education Department. Overall debts for Americans in their 30s jumped 27% from late 2019 to early 2023—steeper than for any other age group.

home prices have risen considerably, while wages haven’t kept pace.

“What Dave Ramsey really misses is any kind of social context,” says Morgan Sanner, a

She began paying off $48,000 in student loans (a Ramsey do) and also took out a loan to buy a 2016 Honda (a Ramsey don’t). Her rationale was that it was safer to pay extra for a more reliable car than a junker she could buy with cash. S

he feels these sorts of real-life decisions don’t factor into his advice.

When she saw a comment from Ramsey online about how people receiving pandemic stimulus payments were “pretty much screwed already,” Israel felt it came across as shaming people. The pandemic shutdowns ended a decadelong economic expansion for Black Americans, a disproportionate number of whom lost their jobs and relied on those checks.

“Moralizing financial decisions is very damaging to marginalized groups,” says Israel, who is Black.

Many young adults scratch their heads over his advice that people should let their credit scores dwindle and die.

People need a good credit score, says Mandy Phillips, a 39-year-old residential mortgage loan originator in Redding, Calif. She uses TikTok and other social media to educate millennials and Gen Z about home buying. Scores are vital when applying for mortgages and rentals.

She also takes issue with Ramsey’s advice to only obtain a home loan if you can take out a 15-year fixed-rate mortgage with a down payment of at least 10%. Few younger buyers can pay the large monthly bills of shorter-term mortgages.

“That may have worked years ago in the ’80s and ’90s, but that’s not something that is achievable for the average American,” Phillips says.

Housing is a particularly hot-button topic. He advises people to only buy a house with their lawfully wedded spouse. Yet many young adults are pooling their finances with partners, friends or roommates to buy their first homes. 

Ramsey is perhaps best known for advocating a “debt snowball method”: People with multiple loans pay off the smallest balances first, regardless of interest rate. As you knock out each loan, he says, the money you have to put toward larger debt snowballs. Seeing small wins motivates people to keep going, he says.Conventional economic theory would be to pay off the highest-interest loans first, says James Choi, a finance professor at the Yale School of Management, who has studied the advice of popular finance gurus.

Ramsey’s save-not-spend message sounds logical, young adults say. It’s his all-or-nothing approach that doesn’t work for them.

Kate Hindman, a 31-year-old administrative assistant in Pasadena, Calif., who has taken an anti-Ramsey stance on TikTok, ended up with $30,000 in credit-card debt after she and her husband faced income-reducing job changes. They’ve since turned it into a consolidation loan with an 8% interest rate and pay about $1,200 a month.

She wonders if the debt aversion is generational. Perhaps younger people are less willing to make huge sacrifices to be debt-free. Maybe carrying some amount of debt forever is a new normal.

That shame mangrove has been completely uprooted by Trump.

The reason people felt ashamed is that they felt fidelity to certain norms — so their cheeks would turn red when they knew they had fallen short

in the kind of normless world we have entered where societal, institutional and leadership norms are being eroded,” Seidman said to me, “no one has to feel shame anymore because no norm has been violated.”

People in high places doing shameful things is hardly new in American politics and business. What is new, Seidman argued, “is so many people doing it so conspicuously and with such impunity: ‘My words were perfect,’ ‘I’d do it again.’ That is what erodes norms — that and making everyone else feel like suckers for following them.”

Nothing is more corrosive to a vibrant democracy and healthy communities, added Seidman, than “when leaders with formal authority behave without moral authority.

Without leaders who, through their example and decisions, safeguard our norms and celebrate them and affirm them and reinforce them, the words on paper — the Bill of Rights, the Constitution or the Declaration of Independence — will never unite us.”

. Trump wants to destroy our social and legal mangroves and leave us in a broken ethical ecosystem, because he and people like him best thrive in a broken system.

He keeps pushing our system to its breaking point, flooding the zone with lies so that the people trust only him and the truth is only what he says it is. In nature, as in society, when you lose your mangroves, you get flooding with lots of mud.

Responsibility, especially among those who have taken oaths of office — another vital mangrove — has also experienced serious destruction.

It used to be that if you had the incredible privilege of serving as U.S. Supreme Court justice, in your wildest dreams you would never have an American flag hanging upside down

Your sense of responsibility to appear above partisan politics to uphold the integrity of the court’s rulings would not allow it.

Civil discourse and engaging with those with whom you disagree — instead of immediately calling for them to be fired — also used to be a mangrove.

when moral arousal manifests as moral outrage — and immediate demands for firings — “it can result in a vicious cycle of moral outrage being met with equal outrage, as opposed to a virtuous cycle of dialogue and the hard work of forging real understanding.”

In November 2022, the Heterodox Academy, a nonprofit advocacy group, surveyed 1,564 full-time college students ages 18 to 24. The group found that nearly three in five students (59 percent) hesitate to speak about controversial topics like religion, politics, race, sexual orientation and gender for fear of negative backlashes by classmates.

Locally owned small-town newspapers used to be a mangrove buffering the worst of our national politics. A healthy local newspaper is less likely to go too far to one extreme or another, because its owners and editors live in the community and they know that for their local ecosystem to thrive, they need to preserve and nurture healthy interdependencies

in 2023, the loss of local newspapers accelerated to an average of 2.5 per week, “leaving more than 200 counties as ‘news deserts’ and meaning that more than half of all U.S. counties now have limited access to reliable local news and information.”

As in nature, it leaves the local ecosystem with fewer healthy interdependencies, making it more vulnerable to invasive species and disease — or, in society, diseased ideas.

It’s not that the people in these communities have changed. It’s that if that’s what you are being fed, day in and day out, then you’re going to come to every conversation with a certain set of predispositions that are really hard to break through.”

we have gone from you’re not supposed to say “hell” on the radio to a nation that is now being permanently exposed to for-profit systems of political and psychological manipulation (and throw in Russia and China stoking the fires today as well), so people are not just divided, but being divided. Yes, keeping Americans morally outraged is big business at home now and war by other means by our geopolitical rivals.

More than ever, we are living in the “never-ending storm” that Seidman described to me back in 2016, in which moral distinctions, context and perspective — all the things that enable people and politicians to make good judgments — get blown away.

Blown away — that is exactly what happens to the plants, animals and people in an ecosystem that loses its mangroves.

a trend ailing America today: how much we’ve lost our moorings as a society.

Civil discourse and engaging with those with whom you disagree — instead of immediately calling for them to be fired — also used to be mangroves.

civility itself also used to be a mangrove.

“Why the hell not?” Drummond asks.“You’re not supposed to say ‘hell,’ either,” the announcer says.You are not supposed to say “hell,” either. What a quaint thought. That is a polite exclamation point in today’s social media.

Another vital mangrove is religious observance. It has been declining for decades:

So now the most partisan national voices on Fox News, or MSNBC — or any number of polarizing influencers like Tucker Carlson — go straight from their national studios direct to small-town America, unbuffered by a local paper’s or radio station’s impulse to maintain a community where people feel some degree of connection and mutual respect

In a 2021 interview with my colleague Ezra Klein, Barack Obama observed that when he started running for the presidency in 2007, “it was still possible for me to go into a small town, in a disproportionately white conservative town in rural America, and get a fair hearing because people just hadn’t heard of me. … They didn’t have any preconceptions about what I believed. They could just take me at face value.”

Stock prices of its five biggest makers of panels and other equipment have halved in the past 12 months. Since late June, at least seven large Chinese manufacturers have warned that they will announce heavy losses for the first half of this year.

The turmoil in the solar energy sector amid enormous factory capacity and booming exports highlights how China’s industrial policymaking works. The government decided 15 years ago to put extensive support behind solar power, and then let the companies claw it out. Beijing has shown a high tolerance for letting firms stumble and even fail in large numbers.

Something similar is happening in the automotive sector. Annual car sales in China are around 25 million a year, more than any other country but barely half the country’s ability to make vehicles. So automakers in China are now following the solar industry’s lead in cutting prices sharply and ramping up exports.

China’s approach can lead to big financial losses for local governments, state investment funds and state-supported banks, all of which bankroll companies in favored industries.

Sunzone’s rivals, including Tongwei and Longi Green Energy Technology, gained formidable economies from large-scale production. They have plowed part of their extra revenue into developing solar panels that are increasingly efficient at converting sunlight into electricity.

The rise and fall of Hunan Sunzone Optoelectronics in Changsha, the capital of Hunan Province in south-central China, is a case study of how China’s policies work.

“It’s a very expensive development model, but it produces national champions quite reliably,” said David R. Hoffman, a senior adviser on China for the Conference Board, a global business group.

Despite the financial help, Sunzone’s factory now sits empty. A large “Sunzone” sign on the second floor rusts in the swampy heat of Changsha. The only person still working at the site on a recent afternoon, a security guard, said that manufacturing equipment was removed in January and the factory was set to be demolished and turned into office buildings.

Sunzone epitomizes how lavish lending from state-owned banks and generous local subsidies have produced manufacturing overcapacity. Solar companies cut costs and prices sharply to maintain market share. That led to a few low-cost survivors while many other competitors were driven out of business in China and around the world.

China’s banks, acting at Beijing’s direction, have lent so much money to the sector for factory construction that the country’s solar factory capacity is roughly double the entire world’s demand.

Started in 2008, the solar panel manufacturer benefited early on from practically every possible subsidy. It got 22 acres of prime downtown land in the heart of the city almost for free. One of China’s biggest state-owned banks arranged a loan at a low interest rate. The Hunan provincial government then agreed to pay most of the interest.

Many other factories, like Sunzone’s, quickly become obsolete.

“Enterprises continue to put advanced production capacity into operation to maintain competitiveness” said Zhang Jianhua, director of China’s National Energy Administration, at a news conference last month. “At the same time, the outdated production capacity is still extensive and needs to be gradually phased out.”

Compounding the problems facing China’s solar energy companies is the rapid disappearance of local subsidies. Local governments are running out of money as a housing crisis makes it hard for them to sell long-term leases on state land to real estate developers — previously their biggest source of cash.

Partly because of worries about Chinese subsidies, President Biden last month allowed steep tariffs that had expired to go back into force on solar products imported from Southeast Asia that use lots of Chinese components. And the Department of Commerce has begun trade cases against imported solar panels that could lead to further tariffs.