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When comparing the size of this negative association with other predictors of cognitive decline, watching television for >3.5 hours a day had a greater sized negative association (standardised beta = −0.034) than being in the lowest wealth quintile (as compared with the median quintile: standardised beta −0.027), while watching television for >7 hours a day had a greater sized association (standardized beta = −0.048) as being in the highest wealth quintile (compared with the median quintile: standardised beta = 0.043) or having no educational qualifications (standardized beta = −0.058).

associations between television viewing and verbal memory remained even when considering a range of variables relating to sedentary behaviours, suggesting that it is not just the sedentary nature of television watching that is responsible for its relationship with cognition.

Television involves fast-paced changes in images, sounds and action and, unlike other screen-based activities such as internet use and gaming, television is the most passive way of receiving such stimuli

television leads to a more alert but less focused brain

In addition to any potential cognitive stress created through the alert-passive interaction while watching television, the content of the programme itself can be stressful, such as through the depiction of graphic scenes, violence or the creation of suspense. Analyses of UK television from 2001–2013 (covering the country and much of the period of the data collection for the study reported here) have shown between 2.1 and 11.5 violent scenes per hour in UK soap operas, with 40% of these being categorised as moderate or strong violence22. It has even been proposed that the vividness of such experiences is greater than real-world experiences of events such as violence, conflict or disasters, as the drama is enhanced for entertainment purposes23. Chronic stress is known to lead to increased levels of glucocorticoids, which can have a direct effect on the hippocampus due to the presence of glucocorticoid receptors in that region of the brain. Consequently, stress has been shown to lead to atrophy of the hippocampus and impaired neurogenesis24, alongside impairments in cognition25.

excessive television could be linked with verbal memory through displacing other, cognitively beneficial activities such as playing board games, reading and engaging with cultural activities11,26. This theory implies that the relationship between television viewing and memory is not entirely down to television having negative effects per se, but rather television reducing the amount of time that people spend on more activities that could contribute to cognitive preservation

This study is not suggesting that watching television in older adulthood confers no benefits. Indeed, research with adults has suggested that TV dramas in comparison with TV documentaries can increase performance in tests of theory of mind, suggesting that television can enhance understanding of others27. Educational television can be an efficient way of learning when programmes are designed appropriately28. Television has also been shown to be a form of escapism from difficult life circumstances29. Further, research investing the effects of television viewing in the context of people’s daily lives has found that adults routinely report television as a means of relaxing30 (although this should be considered in relation to the potentially stress-inducing effects of television viewing discussed earlier). Nevertheless, this study suggests that watching substantial amounts of television is longitudinally associated with poorer verbal memory in older adults.

it remains unclear whether television viewing might affect other components of executive function

Because the term “AI” is ambiguous, it makes having clear discussions more difficult. In one sense, it is the name of a subfield of computer science. In another, it can refer to the computing techniques developed in that subfield, most of which are now focused on pattern matching based on large data sets and the generation of new media based on those patterns. Finally, in marketing copy and start-up pitch decks, the term “AI” serves as magic fairy dust that will supercharge your business.

output can seem so plausible that without a clear indication of its synthetic origins, it becomes a noxious and insidious pollutant of our information ecosystem

the people selling this technology propose that text synthesis machines could fix various holes in our social fabric: the lack of teachers in K–12 education, the inaccessibility of health care for low-income people and the dearth of legal aid for people who cannot afford lawyers, just to name a few

Not only do we risk mistaking synthetic text for reliable information, but also that noninformation reflects and amplifies the biases encoded in its training data—in this case, every kind of bigotry exhibited on the Internet. Moreover the synthetic text sounds authoritative despite its lack of citations back to real sources. The longer this synthetic text spill continues, the worse off we are, because it gets harder to find trustworthy sources and harder to trust them when we do.

the systems rely on enormous amounts of training data that are stolen without compensation from the artists and authors who created it in the first place

the task of labeling data to create “guardrails” that are intended to prevent an AI system’s most toxic output from seeping out is repetitive and often traumatic labor carried out by gig workers and contractors, people locked in a global race to the bottom for pay and working conditions.

employers are looking to cut costs by leveraging automation, laying off people from previously stable jobs and then hiring them back as lower-paid workers to correct the output of the automated systems. This can be seen most clearly in the current actors’ and writers’ strikes in Hollywood, where grotesquely overpaid moguls scheme to buy eternal rights to use AI replacements of actors for the price of a day’s work and, on a gig basis, hire writers piecemeal to revise the incoherent scripts churned out by AI.

too many AI publications come from corporate labs or from academic groups that receive disproportionate industry funding. Much is junk science—it is nonreproducible, hides behind trade secrecy, is full of hype and uses evaluation methods that lack construct validity

We urge policymakers to instead draw on solid scholarship that investigates the harms and risks of AI—and the harms caused by delegating authority to automated systems, which include the unregulated accumulation of data and computing power, climate costs of model training and inference, damage to the welfare state and the disempowerment of the poor, as well as the intensification of policing against Black and Indigenous families. Solid research in this domain—including social science and theory building—and solid policy based on that research will keep the focus on the people hurt by this technology.

Decades ago, Iranian law required women to take off headscarves in line with modernization plans, with police sometimes forcing women to do so. But hijab wearing became compulsory in 1979 when the country became a theocracy.

Shajarizadeh and others monitoring the ongoing outcry have noticed that some people involved in the protests are confronted by police days after an alleged incident—including women cited for not wearing a hijab. “Many people haven't been arrested in the streets,” she says. “They were arrested at their homes one or two days later.”

Some face recognition in use in Iran today comes from Chinese camera and artificial intelligence company Tiandy. Its dealings in Iran were featured in a December 2021 report from IPVM, a company that tracks the surveillance and security industry.

US Department of Commerce placed sanctions on Tiandy, citing its role in the repression of Uyghur Muslims in China and the provision of technology originating in the US to Iran’s Revolutionary Guard. The company previously used components from Intel, but the US chipmaker told NBC last month that it had ceased working with the Chinese company.

When Steven Feldstein, a former US State Department surveillance expert, surveyed 179 countries between 2012 and 2020, he found that 77 now use some form of AI-driven surveillance. Face recognition is used in 61 countries, more than any other form of digital surveillance technology, he says.

Only popular resistance from below and the reformists’ electoral victories could curb the hard-liners’ drive for total subjugation of the state, society, and culture.

The Green revolt and the subsequent nationwide uprisings in 2017 and 2019 against socioeconomic ills and authoritarian rule profoundly challenged the Islamist regime but failed to alter it. The uprisings caused not a revolution but the fear of revolution—a fear that was compounded by the revolutionary uprisings against the allied regimes in Syria, Lebanon, and Iraq, which Iran helped to quell.

once they took over the presidency in 2021 and the parliament in 2022 through rigged elections—specifically, through the arbitrary vetoing of credible rival candidates—the hard-liners moved to subjugate a defiant people once again. Extending the “morality police” into the streets and institutions to enforce the “proper hijab” has been only one measure—but it was the one that unleashed a nationwide uprising in which women came to occupy a central place.

the culmination of years of steady struggles against a systemic misogyny that the postrevolution regime established

With the emergence of the “people,” a super-collective in which differences of class, gender, ethnicity, and religion temporarily disappear in favor of a greater good, the uprising has assumed a revolutionary character. The abolition of the morality police and the mandatory hijab will no longer suffice. For the first time, a nationwide protest movement has called for a regime change and structural socioeconomic transformation.

Over the years, headscarves gradually inched back further and further until finally they fell to the shoulders. Officials felt, time and again, paralyzed by this steady spread of bad-hijabi among millions of women who had to endure daily humiliation and punishment. With the initial jail penalty between ten days and two months, showing inches of hair had ignited decades of daily street battles between defiant women and multiple morality enforcers such as Sarallah (wrath of Allah), Amre beh Ma’ruf va Nahye az Monker (command good and forbid wrong), and EdarehAmaken (management of public places). According to a police report during the crackdown on bad-hijabis in 2013, some 3.6 million women were stopped and humiliated in the streets and issued formal citations. Of these, 180,000 were detained.

This is the story of women’s “non-movement”—the collective and connective actions of non-collective actors who pursue not a politics of protest but of redress, through direct actions.

the uprising is no longer limited to the mandatory hijab and women’s rights. It has grown to include wider concerns and constituencies—young people, students and teachers, middle-class families and workers, residents of some rural and poor communities, and those religious and ethnic minorities (Kurds, Arabs, Azeris, and Baluchis) who, like women, feel like second-class citizens and seem to identify with “Woman, Life, Freedom.”

The thousands of tweets describing why people are protesting point time and again to the longing for a humble normal life denied to them by a regime of clerical and military patriarchs. For these dissenters, the regime appears like a colonial entity—with its alien thinking, feeling, and ruling—that has little to do with the lives and worldviews of the majority.

The feminism of the movement, rather, is antisystem; it challenges the systemic control of everyday life and the women at its core. It is precisely this antisystemic feminism that promises to liberate not only women but also the oppressed men—the marginalized, the minorities, and those who are demeaned and emasculated by their failure to provide for their families due to economic misfortune.

A segment of Muslim women did support the Islamic state, but others fought back. They took to the streets to protest the mandatory hijab, organized collective campaigns, and lobbied “liberal clerics” to secure a women-centered reinterpretation of religious texts. But when the regime extended its repression, women resorted to the “art of presence”—by which I mean the ability to assert collective will in spite of all odds, by circumventing constraints, utilizing what exists, and discovering new spaces within which to make themselves heard, seen, felt, and realized. Simply, women refused to exit public life, not through collective protests but through such ordinary things as pursuing higher education, working outside the home, engaging in the arts, music, and filmmaking, or practicing sports.

At this point in time, Iran is far from a “revolutionary situation,” meaning a condition of “dual power” where an organized revolutionary force backed by millions would come to confront a crumbling government and divided security forces. What we are witnessing today, however, is the rise of a revolutionary movement—with its own protest repertoires, language, and identity—that may open Iranian society to a “revolutionary course.”

The disproportionate presence of the young—women and men, university and high school students—in the streets of the uprising has led some to interpret it as the revolt of generation-Z against a regime that is woefully out of touch. But this view overlooks the dissidence of older generations, the parents and families that have raised, if not politicized, these children and mostly share their sentiments. A leaked government survey from November 2022 found that 84 percent of Iranians expressed a positive view of the uprising. If the regime allowed peaceful public protests, we would likely see more older people on the streets.

Although some workers have joined the protests through demonstrations and labor strikes, a widespread labor showdown has yet to materialize. This may not be easy, because the neoliberal restructuring of the 2000s has fragmented the working class, undermined workers’ job security (including the oil sector), and diminished much of their collective power. In their place, teachers have emerged as a potentially powerful dissenting force with a good degree of organization and protest experience.

Shopkeepers and bazaar merchants have also joined the opposition. In fact, they surprised the authorities when at least 70 percent of them, according to a leaked official report, went on strike in Tehran and 21 provinces on 15 November 2022 to mark the 2019 uprising. Not surprisingly, security forces have increasingly been threatening to shut down their businesses.

Protesters in the Arab Spring fully utilized existing cultural resources, such as religious rituals and funeral processions, to sustain mass protests. Most critical were the Friday prayers, with their fixed times and places, from which the largest rallies and demonstrations originated. But Friday prayer is not part of the current culture of Iran’s Shia Muslims (unlike the Sunni Baluchies). Most Iranian Muslims rarely even pray at noon, whether on Fridays or any day. In Iran, the Friday prayer sermons are the invented ritual of the Islamist regime and thus the theater of the regime’s power. Consequently, protesters would have to turn to other cultural and religious spaces such as funerals and mourning ceremonies or the Shia rituals of Moharram and Ramadan.

During the Green revolt of 2009, the ruling hard-liners banned funerals and prevented families from holding mourning ceremonies for their loved ones

the hard-line parliament passed an emergency bill on 9 October 2022 “adjusting” the salaries of civil servants, including 700,000 pensioners who in late 2017 had turned out in force during a wave of protests. Newly employed teachers were to receive more secure contracts, sugarcane workers their unpaid wages, and poor families a 50 percent increase in the basic-needs subsidy.

beating, killing, mass detention, torture, execution, drone surveillance, and marking the businesses and homes of dissenters. The regime’s clampdown has reportedly left 525 dead, including 71 minors, 1,100 on trial, and some 30,000 detained. The security forces and Basij militia have lost 68 members in the unrest.

The regime’s suppression and the protesters’ pause are likely to diminish the protests. But this does not mean the end of the movement. It means the end of a cycle of protest before a trigger ignites a new one. We have seen these cycles at least since 2017. What is distinct about this time is that it has set Iranian society on a “revolutionary course,” meaning that a large part of society continues to think, imagine, talk, and act in terms of a different future. Here, people’s judgment about public matters is often shaped by a lingering echo of “revolution” and a brewing belief that “they [the regime] will go.” So, any trouble or crisis—for instance, a water shortage— is considered a failure of the regime, and any show of discontent—say, over delayed wages—a revolutionary act. In such a mindset, the status quo is temporary and change only a matter of time.

There are, of course, local leaders and ad hoc collectives that communicate ideas and coordinate actions in the neighborhoods, workplaces, and universities. Thanks to their horizontal, networked, and fluid character, their operations are less prone to police repression than a conventional movement organization would be. This kind of decentralized networked activism is also more versatile, allows for multiple voices and ideas, and can use digital media to mobilize larger crowds in less time. But networked movements can also suffer from weaker commitment, unruly decisionmaking, and tenuous structure and sustainability. For instance, who will address a wrongdoing, such as violence, committed in the name of the movement? As a result, movements tend to deploy a hybrid structure by linking the decentralized and fluid activism to a central body. The “Woman, Life, Freedom” movement has yet to take up this consideration.

a leadership organization—in the vein of Polish Solidarity, South Africa’s ANC, or Sudan’s Forces of Freedom and Change—is not just about articulating a strategic vision and coordinating actions. It also signals responsibility, representation, popular trust, and tactical unity.

if the revolutionary movement is unwilling or unable to pick up the power, others will. This, in fact, is the story of most of the Arab Spring uprisings—Egypt, Iraq, Lebanon, and Yemen, for instance. In these experiences, the protagonists, those who had initiated and carried the uprisings forward, remained mostly marginal to the process of critical decisionmaking while the free-riders, counterrevolutionaries, and custodians of the status quo moved to the center.

Things are unlikely to go back to where they were before the uprising. A paradigm shift has occurred in the Iranian subjectivity, expressed most vividly in the recognition of women as transformative actors and the “woman question” as a strategic focus of struggle.

Those who expect quick results will likely be dispirited. But the country seems to be on a new course.