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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

there is no debate. There’s a trade-off. But once you make identity a core qualification, you’re opening up a whole world of racist anti-racism.

Most Americans believe in individual merit, and advancement regardless of identity. Harvard and our new elite believe that our society is so structured as an enduring “white supremacy” that merit can only be considered after you have accounted for the effects of “intersectional oppression.”

each moment of truth puts a crack in the stifling, authoritarian edifice of DEI. We can bring this corruption to light. We can hold them to account. I’m certainly more hopeful about the future of liberal society now than I was a month ago.

the only way to cover it all up, of course, is to abolish testing students entirely (which is what so many elite colleges and universities are now doing) or to give all students an A or an A-, making any distinctions of excellence irrelevant.

When push comes to shove, when there is a finite number of places available, you’re in a zero-sum predicament. You have to pick between a smarter student of the wrong race and a weaker student of the right race. In the end at Harvard, being in the right race — not merit — determines your chances.

The more people see this for the systemic racism it is, the sooner we can throw this neo-Marxist cuckoo out of the liberal nest, and return to the airing of all ideas, regardless of the subject matter or the identity of the students

That’s how you can claim, as Gay does, that “diversity” and “excellence” go hand in hand, when obviously, at some point they can and do conflict.

The response to all this from the CRT crowd has been to insist — ever more strongly — that Gay is simply and only a victim of racism, or, in woke terminology, a victim of misogynoir. The fact that a white female university president at those same hearings lost her job before Gay did — and without any plagiarism questions — doesn’t count.

In the Congressional hearings, moreover, she showed little gravitas, grace, or ability to think on her feet. She has largely hidden from public view since the plagiarism revelations — not a good instinct for a leader of a huge, public-facing institution like Harvard. She is, quite obviously, a run-of-the-mill woke academic, who was promoted at breakneck speed because of her race and sex, and found herself quickly out of her depth.

When you look instead at what she has done as an administrator, which is where she has been focused more recently, you see it has almost all been about hiring on the basis of sex and race, persecuting heretical members of racial minorities, and removing paintings of dead white dudes. She is, at least, consistent.

And let’s be honest: we can all see with our own eyes that subordinating merit to race and sex is how Gay got her position. Her work, beyond the sloppy dime-store plagiarism, would be underwhelming for an average member of any faculty in the country. But for a Harvard president, it’s astonishingly mid

what worries me even more is the change I see in ordinary Americans. I live in the heart of MAGA country, and Donald Trump is the single most culturally influential person here. It’s not close. He’s far more influential than any pastor, politician, coach or celebrity. He has changed people politically and also personally. It is common for those outside the Trump movement to describe their aunts or uncles or parents or grandparents as “lost.” They mean their relatives’ lives are utterly dominated by Trump, Trump’s media and Trump’s grievances.

never before have I seen extremism penetrate a vast American community so deeply, so completely and so comprehensively.

That percentage is far higher than the (still troubling) 22 percent of independents and 13 percent of Democrats who shared the same view.

In 2011, they were the American cohort least likely to agree that a politician could commit immoral acts in private yet “still behave ethically and fulfill their duties in their public and professional life.”

They went from least likely to most likely to excuse the immoral behavior of politicians.

An increasing percentage are now tempted to embrace political violence. Last October, a startling 33 percent of Republicans (and an even larger 41 percent of pro-Trump Americans) agreed with the statement that “because things have gotten so far off track, true American patriots may have to resort to violence in order to save our country.”

Polling data again and again backs up the reality that the right is abandoning decency, and doing so in the most alarming of ways. It began happening almost immediately with white evangelicals

As the Iowa caucuses approached, Trump escalated his language, going so far as to call his political opponents “vermin” and declaring that immigrants entering America illegally are “poisoning the blood of our country.” The statement was so indefensible and repugnant that many expected it to hurt Trump. Yet a Des Moines Register/NBC News/Mediacom Iowa Poll found that a 42 percent plurality of likely Iowa Republican caucusgoers said the statement would make them more likely to support Trump — a substantially greater percentage than the 28 percent who said it would make them less likely to support him.

While political violence is hardly exclusive to the right, the hostility and vitriol embedded in MAGA America is resulting in an escalating wave of threats and acts of intimidation.

The result is a religious movement steeped in fanaticism but stripped of virtue. The fruit of the spirit described in Galatians in the New Testament — “love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control” — is absent from MAGA Christianity, replaced by the very “works of the flesh” the same passage warned against, including “hatreds, strife, jealousy, outbursts of anger, selfish ambitions, dissensions” and “factions.”

in the upside-down world of MAGA morality, vice is virtue and virtue is vice. My colleague Jane Coaston even coined a term, “vice signaling,” to describe how Trump’s core supporters convey their tribal allegiance. They’re often deliberately rude, transgressive or otherwise unpleasant, just to demonstrate how little they care about conventional moral norms.

For most of my life, conservative evangelicals (including me) have been fond of quoting John Adams’s 1798 letter to the Massachusetts Militia. It’s a critical founding document, one that forcefully argues that our Republic needs a virtuous citizenry to survive. “Our Constitution was made only for a moral and religious People,” he asserts. “It is wholly inadequate to the government of any other.”

I’ve appreciated that quote because it recognizes the obligations of a free people in a constitutional republic to exercise their liberty toward virtuous purposes.

Absent public virtue, a republic can fall. And a Trump win in 2024 would absolutely convince countless Americans that virtue is for suckers, and vice is the key to victory.

if he wins again, the equation will change and history may record that he was not the culmination of a short-lived reactionary moment, but rather the harbinger of a greater darkness to come.

The answer to both lies in one word: satiety. It’s a concept that we don’t use much in everyday life but that we’ve all experienced at some point. It describes the sensation of having had enough and not wanting any more.

The primary reason we have gained weight at a pace unprecedented in human history is that our diets have radically changed in ways that have deeply undermined our ability to feel sated

The evidence is clear that the kind of food my father grew up eating quickly makes you feel full. But the kind of food I grew up eating, much of which is made in factories, often with artificial chemicals, left me feeling empty and as if I had a hole in my stomach

In a recent study of what American children eat, ultraprocessed food was found to make up 67 percent of their daily diet. This kind of food makes you want to eat more and more. Satiety comes late, if at all.

After he moved in 2000 to the United States in his 20s, he gained 30 pounds in two years. He began to wonder if the American diet has some kind of strange effect on our brains and our cravings, so he designed an experiment to test it.

He and his colleague Paul Johnson raised a group of rats in a cage and gave them an abundant supply of healthy, balanced rat chow made out of the kind of food rats had been eating for a very long time. The rats would eat it when they were hungry, and then they seemed to feel sated and stopped. They did not become fat.

then Dr. Kenny and his colleague exposed the rats to an American diet: fried bacon, Snickers bars, cheesecake and other treats. They went crazy for it. The rats would hurl themselves into the cheesecake, gorge themselves and emerge with their faces and whiskers totally slicked with it. They quickly lost almost all interest in the healthy food, and the restraint they used to show around healthy food disappeared. Within six weeks, their obesity rates soared.

They took all the processed food away and gave the rats their old healthy diet. Dr. Kenny was confident that they would eat more of it, proving that processed food had expanded their appetites. But something stranger happened. It was as though the rats no longer recognized healthy food as food at all, and they barely ate it. Only when they were starving did they reluctantly start to consume it again.

Drugs like Ozempic work precisely by making us feel full.

processed and ultraprocessed food create a raging hole of hunger, and these treatments can repair that hole

the drugs are “an artificial solution to an artificial problem.”

Yet we have reacted to this crisis largely caused by the food industry as if it were caused only by individual moral dereliction

Why do we turn our anger inward and not outward at the main cause of the crisis? And by extension, why do we seek to shame people taking Ozempic but not those who, say, take drugs to lower their blood pressure?

The first is the belief that obesity is a sin.

The second idea is that we are all in a competition when it comes to weight. Ours is a society full of people fighting against the forces in our food that are making us fatter.

Looked at in this way, people on Ozempic can resemble cyclists like Lance Armstrong who used performance-enhancing drugs.

We can’t find our way to a sane, nontoxic conversation about obesity or Ozempic until we bring these rarely spoken thoughts into the open and reckon with them

remember the competition isn’t between you and your neighbor who’s on weight-loss drugs. It’s between you and a food industry constantly designing new ways to undermine your satiety.

Reducing or reversing obesity hugely boosts health, on average: We know from years of studying bariatric surgery that it slashes the risks of cancer, heart disease and diabetes-related death. Early indications are that the new anti-obesity drugs are moving people in a similar radically healthier direction,

But these drugs may increase the risk for thyroid cancer.

Do we want these weight loss drugs to be another opportunity to tear one another down? Or do we want to realize that the food industry has profoundly altered the appetites of us all — leaving us trapped in the same cage, scrambling to find a way out?

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.

A prosecutor may well have political motivation, but his motivation isn’t what determines a verdict; he must prove his charges in court, through an adversarial process. Despite the yelps that Trump was tried in a kangaroo court, his lawyers had every opportunity to challenge jurors, introduce evidence, question prosecution witnesses, and call their own.

Trump is also right to note that his business practices and records didn’t attract anywhere near as much attention before he was a politician. Trump was famous before he was president, but becoming the most famous person on Earth is something else entirely. With the perks of fame comes more scrutiny. (Just ask Hunter Biden.)

Supporters of the Trump prosecution should be honest about the possibility of political motive underlying the case. The danger of political bias is an inherent flaw in the system of elected district attorneys that most jurisdictions around the U.S. use.

Capone was a notorious gangster, involved in murder, bootlegging, and racketeering, so it seems ludicrous that he was nailed on something as procedural and dry and quotidian as evading taxes.

the Capone case. The mobster committed many crimes, but he did them in a way that made them hard to prosecute. Like many organized-crime bosses, he made sure to speak about things elliptically and keep his fingerprints (literal and metaphorical) off things. (Does this sound familiar?) But Capone couldn’t hide financial crimes as effectively. Prosecutors went after him for tax evasion because that’s what they could prove. It is not selective prosecution to go charge someone for a crime for which you have evidence, even if you don’t charge them for the other, more difficult-to-prove crimes. It is realism. It’s also justified and just.

Republican cries of political prosecution can also be understood in another, better way. Because Trump’s defenders are unwilling to argue that he didn’t falsify the records or that it shouldn’t be a crime, they’re actually arguing that he should get a pass on crimes they view as minor because he’s a political figure

“If they can do this to me, they can do this to anyone,” Trump said at a press conference this morning. Indeed, that’s the point of equal justice under the law.

The root causes of silence are not social solidarity but fear and futility. People bite their tongues when they doubt that it’s safe and worthwhile to speak up. Leaders who want to make informed decisions need to make it clear they value candid input.

Mr. Biden has done the opposite, declaring first that only the Lord almighty could change his mind and then saying that he’ll drop out only if polls say there’s no way for him to win. That sends a strong message

If you’re not an immortal being or a time traveler from the future, it’s pointless to share any concerns about the viability of his candidacy.

I’ve reminded them that they’re lucky to have a president who doesn’t punish dissenters with an indefinite prison sentence or a trial for treason. That diffusion of responsibility is a recipe for groupthink — if everyone leaves it to someone else, no one will end up speaking up.

Although it can help to assign devil’s advocates, it’s more effective to unearth them. Genuine dissenters argue more convincingly and get taken more seriously.

It’s time for Mr. Biden’s team to run an anonymous poll of advisers, governors and lawmakers. The results of the poll could be given to an honest broker — someone with a vested interest in winning the election rather than appeasing the president

To avoid pressure from the top, I might try a fishbowl format, asking Mr. Biden to listen first and speak last.

Over the past week, I’ve raised these ideas with several leaders close to the president who reached out for advice. They’ve each made it clear that they’re afraid to put their relationship on the line and they don’t think Mr. Biden will listen to them

Showing openness can raise people’s confidence, but it’s not always enough to quell their fear. In our research, Constantinos Coutifaris and I found that it helps for leaders to criticize themselves out loud. That way, instead of just claiming that they want the truth, they can show that they can handle the truth.

“President Biden, I know you believe that politicians shouldn’t let hubris cloud their judgment. I’m worried that people are telling you what you want to hear, not what you need to hear. We know the good things that could happen if you run and win, but we also need to discuss the good things that could happen if you don’t run. You could be hailed as a hero like George Washington for choosing not to seek another term. Regardless of the result, you could make history through your selfless stewardship of the next generation. Personally, I don’t know if that’s the right decision. I just want to make sure it gets due consideration. Would you be open to hosting a meeting to hear the dissenting views?

What is A.I. even for?

“A.I. slop”: often uncanny, frequently misleading material, now flooding web browsers and social-media platforms like spam in old inboxes. Years deep into national hysteria over the threat of internet misinformation pushed on us by bad actors, we’ve sleepwalked into a new internet in which meaningless, nonfactual slop is casually mass-produced and force-fed to us by A.I.

It has already helped drive down the cost and drive up the performance of next-gen batteries and solar photovoltaic cells, whose performance can also be improved, even after the panels have been manufactured and installed on your roof, by as much as 25 percent

while the internet was never perfectly trustworthy, one epoch-defining breakthrough of Google was that it got us pretty close. Now the company’s chief executive acknowledges that hallucinations are “inherent” to the technology it has celebrated as a kind of successor for ranked-order search results, which are now often found far below not just the A.I. summary but a whole stack of “sponsored” results as well.

Where not long ago we used to find the very best results for Google searches, we can now find instead potentially plagiarized and often inaccurate paragraph summaries of answers to our queries

Machine learning may help make our electricity grid as much as 40 percent more efficient at delivering power as it is today, when many of its routing decisions are made by individual humans on the basis of experience and intuition

This month, KoBold Metals announced the largest discovery of new copper deposits in a decade — a green-energy gold mine, so to speak, delivered with the help of its own proprietary A.I., which integrated information about subatomic particles detected underground with century-old mining reports and radar imagery to make predictions about where minerals critical for the green transition might be found.

.I. is designing new proteins, rapidly accelerating drug discovery and speeding up clinical trials testing new medicines and therapies.

perhaps that a more optimistic perspective can be drawn by analogy to what economists call the “environmental Kuznets curve,” which suggests that, as nations develop, they tend to first pollute a lot more and then, over time, as they grow richer, they ultimately pollute less.

Even in describing regular old pollution, this framework has its shortcomings, especially because it treats as automatic eventual progress that has always required tooth-and-nail fights against some very stubborn bad actors

A.I. is generating an awful lot of genuine pollution, too — both Google and Microsoft, which each pledged in 2019 to reach zero emissions by 2030, have instead expanded their carbon footprints by nearly 50 percent in the interim.