Category: The Conversation – USA

Source: The Conversation – USA (2) – By Jared Bahir Browsh, Assistant Teaching Professor of Critical Sports Studies, University of Colorado Boulder

Donald Trump, it is fair to assume, will be switching channels during this year’s Super Bowl halftime show.

The U.S. president has already said that he won’t be attending Super Bowl LX in person, suggesting that the venue, Levi’s Stadium in Santa Clara, California, was “just too far away.” But the choice of celebrity entertainment planned for the main break – Puerto Rican reggaeton star Bad Bunny and recently announced pregame addition Green Day – didn’t appeal. “I’m anti-them. I think it’s a terrible choice. All it does is sow hatred. Terrible,” Trump told the New York Post.

National Football League Commissioner Roger Goodell likely didn’t have the sensibilities of the U.S. president in mind when the choice of Bad Bunny was made.

One of the top artists in the world, Bad Bunny performs primarily in Spanish and has been critical of immigration enforcement, which factored into the backlash in some conservative circles to the choice. Bad Bunny’s anti-ICE comments at this year’s Grammy Awards will have only stoked the ire of some conservatives.

But for the NFL hierarchy, this was likely a business decision, not a political one. The league has its eyes on expansion into Latin America; Bad Bunny, they hope, will be a ratings-winning means to an end. It has made such bets in the past. In 2020, Shakira and Jennifer Lopez were chosen to perform, with Bad Bunny making an appearance. The choice then, too, was seen as controversial.

Raising the flag overseas

As a teacher and scholar of critical sports studies, I study the global growth of U.S.-based sports leagues overseas.

Some, like the National Basketball Association, are at an advantage. The sport is played around the globe and has large support bases in Asia – notably in the Philippines and China – as well as in Europe, Australia and Canada.

The NFL, by contrast, is largely entering markets that have comparatively little knowledge and experience with football and its players.

The league has opted for a multiprong approach to attracting international fans, including lobbying to get flag football into the 2028 Olympics in Los Angeles.

Playing the field

When it comes to the traditional tackle game, the NFL has held global aspirations for over three-quarters of a century. Between 1950-1961, before they merged, the NFL and American Football League played seven games against teams in Canada’s CFL to strengthen the relationship between the two nations’ leagues.

Developing a fan base south of the border has long been part of the plan.

The first international exhibition game between two NFL teams was supposed to take place in Mexico City in 1968. But Mexican protest over the economy and cost of staging the Olympics that year led the game, between the Detroit Lions and Philadelphia Eagles, to be canceled.

Instead, it was Montreal that staged the first international exhibition match the following year.

In 1986, the NFL added an annual international preseason game, the “American Bowl,” to reach international fans, including several games in Mexico City and one in Monterrey.

But the more concerted effort was to grow football in the potentially lucrative, and familiar, European market.

After several attempts by the NFL and other entities in the 1970s and ’80s to establish an international football league, the NFL-backed World League of Football launched in 1991. Featuring six teams from the United States, one from Canada and three from Europe, the spring league lost money but provided evidence that there was a market for American football in Europe, leading to the establishment of NFL Europe.

But NFL bosses have long had wider ambitions. The league staged 13 games in Tokyo, beginning in 1976, and planned exhibitions for 2007 and 2009 in China that were ultimately canceled. These attempts did not have the same success as in Europe.

Beyond exhibitions

The NFL’s outreach in Latin America has been decades in the making. After six exhibition matches in Mexico between 1978 and 2001, the NFL chose Mexico City as the venue of its first regular season game outside the United States.

In 2005, it pitted the Arizona Cardinals against the San Francisco 49ers at Estadio Azteca in Mexico City. Marketed as “Fútbol Americano,” it drew the largest attendance in NFL history, with over 103,000 spectators.

The following year, Goodell was named commissioner and announced that the NFL would focus future international efforts on regular-season games.

The U.K. was a safe bet due to the established stadium infrastructure and the country’s small but passionate fan base. The NFL International Series was played exclusively in London between 2007 and 2016.

But in 2016, the NFL finally returned to Mexico City, staging a regular-season game between the Oakland – now Las Vegas – Raiders and Houston Texans.

And after the completion of upgrades to Latin America’s largest stadium, Estadio Azteca, the NFL will return to Mexico City in 2026, along with games in Munich, Berlin and London. Future plans include expanding the series to include Sydney, Australia, and Rio de Janeiro, Brazil, in 2026.

The International Player Pathway program also offers players from outside the United States an opportunity to train and earn a roster spot on an NFL team. The hope is that future Latin American players could help expand the sport in their home countries, similar to how Yao Ming expanded the NBA fan base in China after joining the Houston Rockets, and Shohei Ohtani did the same for baseball in Japan while playing in Los Angeles.

Heading south of the border

The NFL’s strategy has gained the league a foothold in Latin America.

Mexico and Brazil have become the two largest international markets for the NFL, with nearly 40 million fans in each of the nations.

Although this represents a fraction of the overall sports fans in each nation, the raw numbers match the overall Latino fan base in the United States. In recent years the NFL has celebrated Latino Heritage Month through its Por La Cultura campaign, highlighting Latino players past and present.

Latin America also offers practical advantages. Mexico has long had access to NFL games as the southern neighbor to the United States, with the Dallas Cowboys among the most popular teams in Mexico.

For broadcasters, Central and South America offer less disruption in regards to time zones. Games in Europe start as early as 6:30 a.m. for West Coast fans, whereas Mexico City follows Central time, and Brasilia time is only one to two hours ahead of Eastern time.

The NFL’s expansion plans are not without criticism. Domestically, fans have complained that teams playing outside the U.S. borders means one less home game for season-ticket holders. And some teams have embraced international games more than others.

Another criticism is the league, which has reported revenues of over US$23 billion during the 2024-25 season – nearly double any other U.S.-based league – is using its resources to displace local sports. There are also those who see expansion of the league as a form of cultural imperialism. These criticisms often intersect with long-held ideas around the league promoting militarism, nationalism and American exceptionalism.

Bad Bunny: No Hail Mary attempt

For sure, the choice of Bad Bunny as the halftime pick is controversial, given the current political climate around immigration. The artist removed tour dates on the U.S. mainland in 2025 due to concerns about ICE targeting fans at his concerts, a concern reinforced by threats from the Department of Homeland Security that they would do just that at the Super Bowl.

But in sticking with Bad Bunny, the NFL is showing it is willing to face down a section of its traditional support and bet instead on Latin American fans not just tuning in for the halftime show but for the whole game – and falling in love with football, too.

Jared Bahir Browsh does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Bad Bunny’s Super Bowl show is part of long play drawn up by NFL to score with Latin America – https://theconversation.com/bad-bunnys-super-bowl-show-is-part-of-long-play-drawn-up-by-nfl-to-score-with-latin-america-271068

Source: The Conversation – USA (2) – By Julian Givi, Assistant Professor of Marketing, West Virginia University

As Valentine’s Day approaches, finding the perfect words to express your feelings for that special someone can seem like a daunting task – so much so that you may feel tempted to ask ChatGPT for an assist.

After all, within seconds it can dash off a well-written, romantic message. Even a short, personalized limerick or poem is no sweat.

But before you copy and paste that AI-generated love note, you might want to consider how it could make you feel about yourself.

We research the intersection of consumer behavior and technology, and we’ve been studying how people feel after using generative AI to write heartfelt messages. It turns out that there’s a psychological cost to using the technology as your personal ghostwriter.

The rise of the AI ghostwriter

Generative AI has transformed how many people communicate. From drafting work emails to composing social media posts, these tools have become everyday writing assistants. So it’s no wonder some people are turning to them for more personal matters, too.

Wedding vows, birthday wishes, thank you notes and even Valentine’s Day messages are increasingly being outsourced to algorithms.

The technology is certainly capable. Chatbots can craft emotionally resonant responses that sound genuinely heartfelt.

But there’s a catch: When you present these words as your own, something doesn’t sit right.

When convenience breeds guilt

We conducted five experiments with hundreds of participants, asking them to imagine using generative AI to write various emotional messages to loved ones. Across every scenario we tested – from appreciation emails to birthday cards to love letters – we found the same pattern: People felt guilty when they used generative AI to write these messages compared to when they wrote the messages themselves.

When you copy an AI-generated message and sign your name to it, you’re essentially taking credit for words you didn’t write.

This creates what we call a “source-credit discrepancy,” which is a gap between who actually created the message and who appears to have created it. You can see these discrepancies in other contexts, whether it’s celebrity social media posts written by public relations teams or political speeches composed by professional speechwriters.

When you use AI, even though you might tell yourself you’re just being efficient, you can probably recognize, deep down, that you’re misleading the recipient about the personal effort and thought that went into the message.

The transparency test

To better understand this guilt, we compared AI-generated messages to other scenarios. When people bought greeting cards with preprinted messages, they felt no guilt at all. This is because greeting cards are transparently not written by you. Greeting cards carry no deception: Everyone understands you selected the card and that you didn’t write it yourself.

We also tested another scenario: having a friend secretly write the message for you. This produced just as much guilt as using generative AI. Whether the ghostwriter is human or an artificial intelligence tool doesn’t matter. What matters most is the dishonesty.

There were some boundaries, however. We found that guilt decreased when messages were never delivered and when recipients were mere acquaintances rather than close friends.

These findings confirm that the guilt stems from violating expectations of honesty in relationships where emotional authenticity matters most.

Somewhat relatedly, research has found that people react more negatively when they learn a company used AI instead of a human to write a message to them.

But the backlash was strongest when audiences expected personal effort – a boss expressing sympathy after a tragedy, or a note sent to all staff members celebrating a colleague’s recovery from a health scare. It was far weaker for purely factual or instructional notes, such as announcing routine personnel changes or providing basic business updates.

What this means for your Valentine’s Day

So, what should you do about that looming Valentine’s Day message? Our research suggests that the human hand behind a meaningful message can help both the writer and the recipient feel better.

This doesn’t mean you can’t use generative AI as a brainstorming partner rather than a ghostwriter. Let it help you overcome writer’s block or suggest ideas, but make the final message truly yours. Edit, personalize and add details that only you would know. The key is co-creation, not complete delegation.

Generative AI is a powerful tool, but it’s also created a raft of ethical dilemmas, whether it’s in the classroom or in romantic relationships. As these technologies become more integrated into everyday life, people will need to decide where to draw the line between helpful assistance and emotional outsourcing.

This Valentine’s Day, your heart and your conscience might thank you for keeping your message genuinely your own.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

– ref. Whether it’s Valentine’s Day notes or emails to loved ones, using AI to write leaves people feeling crummy about themselves – https://theconversation.com/whether-its-valentines-day-notes-or-emails-to-loved-ones-using-ai-to-write-leaves-people-feeling-crummy-about-themselves-271805

Source: The Conversation – USA (3) – By Candice Maenza, Research Project Manager, Associate Director of the Center for Translational Neuromechanics in Rehabilitation, Penn State

Stroke survivors often face substantial and long-lasting problems with their arms. Both arms often decline together: When one arm is more severely affected by the stroke, the other becomes more difficult to use as well. Compared with a healthy person’s dominant hand, a stroke survivor may take up to three times longer to complete everyday tasks using their less-impaired arm.

This creates a frustrating reality. People with severe impairment in one arm must rely almost entirely on their other arm for daily activities, such as eating, dressing and household tasks. When that “good” arm works slowly or awkwardly, even simple activities become tiring and discouraging, and some people may begin to avoid them altogether.

But that good arm can be strengthened. In our newly published research in the journal JAMA Neurology, we found that training the less-impaired arm in people living with chronic stroke can improve everyday hand function, in some cases even better than focusing only on the most impaired arm.

What is a stroke?

A stroke occurs when the flow of oxygen-carrying blood to part of the brain is interrupted by a blockage in a blood vessel or by bleeding. Without oxygen, brain cells begin to die.

Because each side of the brain mainly controls the opposite side of the body, a stroke often causes movement problems on the side of the body opposite the brain injury. For this reason, stroke rehabilitation has traditionally focused on restoring movement in the most impaired arm.

However, research over the past few decades has shown that both sides of the brain contribute to controlling movements for both arms, although they play different roles. As a result, damage to one side of the brain can affect movement on both sides of the body.

As expected, the arm opposite the brain injury often has major problems with weakness, stiffness and voluntary control, limiting its use for reaching, grasping and manipulating objects. But the other arm, usually thought to be unaffected from the stroke, is frequently not normal either. Many stroke survivors experience reduced strength, slower movements and poorer coordination in the less-impaired arm.

Training the less-impaired arm

As neuroscientists who study how the brain controls movement after stroke, these findings led us to a simple question: Could training the less-impaired arm help it work better?

In a clinical trial of over 50 patients, we studied people living with chronic stroke who had severe impairments in one arm, making it unusable for everyday tasks. These individuals depended almost entirely on their less-impaired arm to manage daily life.

Participants were randomly assigned to one of two rehabilitation groups: one that trained their most-impaired arm, and one that trained their less-impaired arm. Both received five weeks of therapy that involved challenging, goal-directed hand movements, including virtual reality tasks designed to improve coordination and timing.

Compared to those who trained their most-impaired arm, we found that participants who conditioned their less-impaired arm became faster and more efficient at everyday hand tasks, such as picking up small objects or lifting a cup. These improvements remained six months after training ended.

We believe the lasting benefit of training the less-impaired arm may come from a simple feedback loop: When their arm works better, people naturally use it more, and that extra practice in daily life helps lock in those gains.

Strengthening what remains

Stroke rehabilitation has long focused on the arm that is most visibly impaired. But for many people, full function in that arm never returns. They adapt and rely on their less-impaired arm to get through the day.

“Less-impaired,” however, does not mean unaffected. When this arm becomes the sole tool for daily activities, even mild problems can have major consequences for independence and quality of life. Improving how well this arm works could make everyday tasks faster, easier and less exhausting, even years after a stroke.

Future work will focus on how best to combine training of the less-impaired arm with standard therapy for the more-impaired arm, and how these approaches translate into everyday life at home.

For many survivors, recovery may not mean restoring what was lost but strengthening what remains.

Candice Maenza received salary support from a National Institutes of Health grant.

Robert Sainburg receives funding from the National Institutes of Health, National Institute of Child Health and Development, National Center for Medical Rehabilitation Research, the National Science Foundation, and the Department of Defense.

– ref. Stroke survivors can counterintuitively improve recovery by strengthening their stronger arm – new research – https://theconversation.com/stroke-survivors-can-counterintuitively-improve-recovery-by-strengthening-their-stronger-arm-new-research-274404

Source: The Conversation – USA – By Sothy Eng, Associate Professor of of Family and Consumer Sciences, University of Hawaii

The U.S. Department of State has announced that starting on Jan. 21, 2026, it has indefinitely stopped issuing immigrant visas for people from 75 countries, claiming concerns that some immigrants may rely on public benefits once they get to the United States.

While applications may still be processed, no immigrant visas will be issued during the pause, including family-based visas for U.S. citizens to sponsor their parents.

This focus leaves little room for recognizing the unpaid caregiving and everyday family support provided by immigrant parents already living in the U.S., support that allows others, including their U.S. citizen children, to remain employed and households to stay stable.

Family-based immigration, particularly visas that allow U.S. citizens to sponsor their parents, strengthens social capital: the networks of care and shared responsibility that allow people to work, stay healthy and raise children who become productive members of society. Weakening these networks risks undermining the social foundations of long-term economic growth.

As a scholar who studies family relationship dynamics and social capital, I have observed how these family ties are not simply private family matters but a public good that sustains community well-being. When parents are present, families are better able to share child care, navigate illness and remain economically active.

Family reunification as social infrastructure

The United States offers no national paid family leave, unlike countries such as Finland and Hungary, which guarantee paid time off to care for children, aging parents or ill family members. Instead, the U.S. provides only unpaid leave under federal law.

Consequently, many families rely on informal caregiving to balance work and care. Research shows that when adequate support is unavailable, workers, especially parents, are more likely to reduce hours or leave the labor force altogether.

This strain is widespread across the U.S.: Roughly 63 million Americans, nearly 1 in 4 adults, provide unpaid care for a family member with a serious health condition or disability, in addition to unpaid child care.

Sponsored immigrant parents often become part of this informal care system. They provide child care, prepare meals and supervise children.

In many U.S. states, the cost of child care now exceeds in-state college tuition, pushing families to reduce formal care or rely on relatives.

Family reunification, therefore, functions as social infrastructure, filling gaps that markets and public systems do not, a role family scholars have emphasized.

Decades of research illustrates this dynamic. In their book “Immigrant America,” sociologists Alejandro Portes and Rubén G. Rumbaut show that immigrant families often rely on close family ties when government support is limited.

Families also pool resources by living together and combining time, skills and income to cover basic needs. These arrangements help households cope with job instability, illness and long work hours. They also reduce reliance on formal child care and paid domestic labor.

Economic development does not happen in isolation from family life. The Organization for Economic Co-operation and Development’s framework on measuring well-being emphasizes that economic performance, health, social connections and family support are interconnected rather than separate policy domains. When people are supported and less stressed, they are healthier and more productive.

Sociologist James Coleman similarly has noted that children raised in stable, supportive households are more likely to succeed in school and contribute meaningfully as adults. Family reunification, therefore, is an investment in the social relationships that underpin economic prosperity.

Social capital and child development

Immigrant grandparents and extended kin often play an active role in children’s lives. They help with learning, language development and daily routines.

This kind of family involvement also helps explain what scholars call the “immigrant paradox,” in which many immigrant children achieve better-than-expected academic and emotional results despite socioeconomic challenges.

As of 2023, about 19 million U.S. children, roughly 1 in 4, have at least one parent who is an immigrant. Therefore, policies that restrict family reunification shape the everyday environments in which millions of children grow up. This influences the support they receive at home and the workforce they will help build as adults.

Social capital is not public dependency

Concerns raised by federal policymakers that immigrants will become a “burden on taxpayers” shape restrictions on family-based immigration. These concerns are reflected in federal policy through the Department of Homeland Security’s public charge rule, which allows immigration officials to assess whether applicants are likely to rely primarily on government assistance such as cash welfare or long-term public support for basic needs.

However, analyses of 2022 U.S. Census data show that immigrants overall use public assistance at lower rates than native-born Americans.

In practice, family reunification is less about public dependency and more about sustaining the relationships that allow families and the economy to function.

The question for policymakers is not whether the U.S. can afford to support family reunification, but whether it can afford not to. In a country facing caregiver shortages, rising parental stress and limited public care infrastructure, investing in social capital through family reunification may be one of the most effective and overlooked ways to support long-term economic growth.

Sothy Eng does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Suspending family-based immigrant visas weakens US families and the economy – https://theconversation.com/suspending-family-based-immigrant-visas-weakens-us-families-and-the-economy-273665

Source: The Conversation – USA (2) – By Gary W. Yohe, Professor of Economics and Environmental Studies, Wesleyan University

In 2009, the U.S. Environmental Protection Agency formally declared that greenhouse gas emissions, including from vehicles and fossil fuel power plants, endanger public health and welfare. The decision, known as the endangerment finding, was based on years of evidence, and it has underpinned EPA actions on climate change ever since.

The Trump administration now wants to tear up that finding as it tries to roll back climate regulations on everything from vehicles to industries.

But the move might not be as simple as the administration hopes.

EPA Administrator Lee Zeldin sent a proposed rule to the White House Office of Management and Budget in early January 2026 to rescind the endangerment finding. Now, a Washington Post report suggests, action on it may be delayed over concerns that the move wouldn’t withstand legal challenges.

Cracks in the administration’s plan are already evident. On Jan. 30, a federal judge ruled that the Department of Energy violated the law when it handpicked five researchers to write the climate science review that the EPA is using to defend its plan. The ruling doesn’t necessarily stop the EPA, but it raises questions.

There’s no question that if the EPA does rescind the endangerment finding that the move would be challenged in court. The world just lived through the three hottest years on record, evidence of worsening climate change is stronger now than ever before, and people across the U.S. are increasingly experiencing the harm firsthand.

Several legal issues have the potential to stop the EPA’s effort. They include emails submitted in a court case that suggest political appointees sought to direct the scientific review.

To understand how we got here, it helps to look at history for some context.

The Supreme Court started it

The endangerment finding stemmed from a 2007 U.S. Supreme Court ruling in Massachusetts v. EPA.

The court found that various greenhouse gases, including carbon dioxide, were “pollutants covered by the Clean Air Act,” and it gave the EPA an explicit set of instructions.

The court wrote that the “EPA must determine whether or not emissions from new motor vehicles cause or contribute to air pollution which may reasonably be anticipated to endanger public health or welfare.”

But the Supreme Court did not order the EPA to regulate greenhouse gas emissions. Only if the EPA found that emissions were harmful would the agency be required, by law, “to establish national ambient air quality standards for certain common and widespread pollutants based on the latest science” – meaning greenhouse gases.

The EPA was required to follow formal procedures – including reviewing the scientific research, assessing the risks and taking public comment – and then determine whether the observed and projected harms were sufficient to justify publishing an “endangerment finding.”

That process took two years. EPA Administrator Lisa Jackson announced on Dec. 7, 2009, that the then-current and projected concentrations of six key greenhouse gases in the atmosphere – carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride – threatened the public health and welfare of current and future generations.

Challenges to the finding erupted immediately.

Jackson denied 10 petitions received in 2009-2010 that called on the administration to reconsider the finding.

On June 26, 2012, the U.S. Court of Appeals for the D.C. Circuit upheld the endangerment finding and regulations that the EPA had issued under the Clean Air Act for passenger vehicles and permitting procedures for stationary sources, such as power plants.

This latest challenge is different.

It came directly from the Trump administration without going through normal channels. It was, though, entirely consistent with both the conservative Heritage Foundation’s Project 2025 plan for the Trump administration and President Donald Trump’s dismissive perspective on climate risk.

Trump’s burden of proof

To legally reverse the 2009 finding, the agency must go through the same evaluation process as before. According to conditions outlined in the Clean Air Act, the reversal of the 2009 finding must be justified by a thorough and complete review of the current science and not just be political posturing.

That’s a tough task.

Energy Secretary Chris Wright has talked publicly about how he handpicked the five researchers who wrote the scientific research review. A judge has now found that the effort violated the 1972 Federal Advisory Committee Act, which requires that agency-chosen panels providing policy advice to the government conduct their work in public.

All five members of the committee had been outspoken critics of mainstream climate science. Their report, released in summer 2025, was widely criticized for inaccuracies in what they referenced and its failure to represent the current science.

Scientific research available today clearly shows that greenhouse gas emissions harm public health and welfare. Importantly, evidence collected since 2009 is even stronger now than it was when the first endangerment finding was written, approved and implemented.

For example, a 2025 review by the National Academies of Sciences, Engineering and Medicine determined that the evidence supporting the endangerment finding is even stronger today than it was in 2009. A 2019 peer-reviewed assessment of the evidence related to greenhouse gas emissions’ role in climate change came to the same conclusion.

The Sixth Assessment of the Intergovernmental Panel on Climate Change, a report produced by hundreds of scientists from around the world, found in 2023 that “adverse impacts of human-caused climate change will continue to intensify.”

In other words, greenhouse gas emissions were causing harm in 2009, and the harm is worse now and will be even worse in the future without steps to reduce emissions.

In public comments on the Department of Energy’s problematic 2025 review, a group of climate experts from around the world reached the same conclusion, adding that the Department of Energy’s Climate Working Group review “fails to adequately represent this reality.”

What happens if EPA does drop the endangerment finding

As an economist who has studied the effects of climate change for over 40 years, I am concerned that the EPA rescinding the endangerment finding on the basis of faulty scientific assessment would lead to faster efforts to roll back U.S. climate regulations meant to slow climate change.

It would also give the administration cover for further actions that would defund more science programs, stop the collection of valuable data, freeze hiring and discourage a generation of emerging science talent.

Cases typically take years to wind through the courts. Unless a judge issued an injunction, I would expect to see a continuing retreat from efforts to reduce climate change while the court process plays out.

I see no scenario in which a legal challenge doesn’t end up before the Supreme Court. I would hope that both the enormous amount of scientific evidence and the words in the preamble of the U.S. Constitution would have some significant sway in the court’s considerations. It starts, “We the People of the United States, in Order to form a more perfect Union,” and includes in its list of principles, “promote the general Welfare.”

Gary W. Yohe does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Trump’s climate policy rollback plan relies on EPA rescinding its 2009 endangerment finding – but will courts allow it? – https://theconversation.com/trumps-climate-policy-rollback-plan-relies-on-epa-rescinding-its-2009-endangerment-finding-but-will-courts-allow-it-274194

Source: The Conversation – USA (2) – By Alexandra Killewald, Professor of Sociology, University of Michigan

For many women in the U.S. and around the world, motherhood comes with career costs.

Raising children tends to lead to lower wages and fewer work hours for mothers – but not fathers – in the United States and around the world.

As a sociologist, I study how family relationships can shape your economic circumstances. In the past, I’ve studied how motherhood tends to depress women’s wages, something social scientists call the “motherhood penalty.”

I wondered: Can government programs that provide financial support to parents offset the motherhood penalty in earnings?

A ‘motherhood penalty’

I set out with Therese Christensen, a Danish sociologist, to answer this question for moms in Denmark – a Scandinavian country with one of the world’s strongest safety nets.

Several Danish policies are intended to help mothers stay employed.

For example, subsidized child care is available for all children from 6 months of age until they can attend elementary school. Parents pay no more than 25% of its cost.

But even Danish moms see their earnings fall precipitously, partly because they work fewer hours.

Losing $9,000 in the first year

In an article to be published in an upcoming issue of European Sociological Review, Christensen and I showed that mothers’ increased income from the state – such as from child benefits and paid parental leave – offset about 80% of Danish moms’ average earnings losses.

Using administrative data from Statistics Denmark, a government agency that collects and compiles national statistics, we studied the long-term effects of motherhood on income for 104,361 Danish women. They were born in the early 1960s and became mothers for the first time when they were 20-35 years old.

They all became mothers by 2000, making it possible to observe how their earnings unfolded for decades after their first child was born. While the Danish government’s policies changed over those years, paid parental leave and child allowances and other benefits were in place throughout. The women were, on average, age 26 when they became mothers for the first time, and 85% had more than one child.

We estimated that motherhood led to a loss of about the equivalent of US$9,000 in women’s earnings – which we measured in inflation-adjusted 2022 U.S. dollars – in the year they gave birth to or adopted their first child, compared with what we would expect if they had remained childless. While the motherhood penalty got smaller as their children got older, it was long-lasting.

The penalty only fully disappeared 19 years after the women became moms. Motherhood also led to a long-term decrease in the number of the hours they worked.

Studying whether government can fix it

These annual penalties add up.

We estimated that motherhood cost the average Danish woman a total of about $120,000 in earnings over the first 20 years after they first had children – about 12% of the money they would have earned over those two decades had they remained childless.

Most of the mothers in our study who were employed before giving birth were eligible for four weeks of paid leave before giving birth and 24 weeks afterward. They could share up to 10 weeks of their paid leave with the baby’s father. The length and size of this benefit has changed over the years.

The Danish government also offers child benefits – payments made to parents of children under 18. These benefits are sometimes called a “child allowance.”

Denmark has other policies, like housing allowances, that are available to all Danes, but are more generous for parents with children living at home.

Using the same data, Christensen and I next estimated how motherhood affects how much money Danish moms receive from the government. We wanted to know whether they get enough income from the government to compensate for their loss of income from their paid work.

In the graphic head, put a comma after “Denmark”; in the footnote, fix the spelling of “adusted” to “adjusted”

We found that motherhood leads to immediate increases in Danish moms’ government benefits. In the year they first gave birth to or adopted a child, women received over $7,000 more from the government than if they had remained childless. That money didn’t fully offset their lost earnings, but it made a substantial dent.

The gap between the money that mothers received from the government, compared with what they would have received if they remained childless, faded in the years following their first birth or adoption. But we detected a long-term bump in income from government benefits for mothers – even 20 years after they first become mothers.

Cumulatively, we determined that the Danish government offset about 80% of the motherhood earnings penalty for the women we studied. While mothers lost about $120,000 in earnings compared with childless women over the two decades after becoming a mother, they gained about $100,000 in government benefits, so their total income loss was only about $20,000.

Benefits for parents of older kids

Our findings show that government benefits do not fully offset earnings losses for Danish moms. But they help a lot.

Because most countries provide less generous parental benefits, Denmark is not a representative case. It is instead a test case that shows what’s possible when governments make financially supporting parents a high priority.

That is, strong financial support for mothers from the government can make motherhood more affordable and promote gender equality in economic resources.

Because the motherhood penalty is largest at the beginning, government benefits targeted to moms with infants, such as paid parental leave, may be especially valuable.

Child care subsidies can also help mothers return to work faster.

The motherhood penalty’s long-term nature, however, indicates that these short-term benefits are not enough to get rid of it altogether. Benefits that are available to all mothers of children under 18, such as child allowances, can help offset the long-term motherhood penalty for mothers of older children.

Alexandra Killewald does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Denmark’s generous child care and parental leave policies erase 80% of the ‘motherhood penalty’ for working moms – https://theconversation.com/denmarks-generous-child-care-and-parental-leave-policies-erase-80-of-the-motherhood-penalty-for-working-moms-273186

Source: The Conversation – USA (2) – By C. Clare Strange, Assistant Research Professor of Criminology and Justice Studies, Drexel University

“The Real Housewives” reality TV series, which showcases the lives of a rotating cast of wealthy women in 11 cities in the U.S. and places in several other countries, is famous for its characters’ over-the-top drama and messy personal antics.

But there are also useful lessons that the characters’ lives and frequent run-ins with the law offer to casual observers and criminology students alike.

I developed the idea for The Real Housewives of Criminology course when I heard a story on NPR in 2023 about how the Bravo Network franchise was becoming more like a true-crime TV series.

Jen Shah, a cast member from “The Real Housewives of Salt Lake City,” had recently been sentenced to six years in federal prison for her role in a nationwide telemarketing scheme – but she wasn’t the only one on the show who met such a fate.

Many people who appear on “Housewives” share a real-life penchant for crime – from driving-under-the-influence charges and theft to fraud and assault.

During any given episode, viewers may find “Housewives” stars and their families navigating the fallout – from court dates to public shaming.

I realized that these scenes illustrate core concepts from criminal justice theory and practice as well as any textbook.

A window into the course

The course examines the criminal cases of the “Housewives” and compares them to those of the general public.

Students discuss how factors such as social class, age and race can impact people’s experiences with the justice system. At the same time, they come to understand that factors such as how serious a crime is, a person’s criminal history and the harm done to victims tend to drive case outcomes more than any other factor.

I believe that this course is especially relevant now, because it is increasingly common for undergraduate students to consume news about crime and punishment from streaming platforms and social media.

It seems there is a new “Housewife” arrest every several months, which brings with it new circumstances and a new case study to dissect.

Critical lessons

One key takeaway from the course is that there are many meaningful differences – and similarities – between the criminal cases shown in “Housewives” and those of most people.

While money and power can often go a long way in fighting a criminal conviction, sometimes they fall short when the harm to victims or society is too great, or the pattern of behavior is too obvious.

Many “Housewives” stars and their families have learned this lesson the hard way.

Read along

This course requires students to view footage from “The Real Housewives,” read peer-reviewed criminological research, and listen to podcast episodes from “The Bravo Docket.”

We even read book chapters straight from some of the Housewives’ memoirs. All of this culminates in a “Final Reunion,” meaning a final verbal exam for students, in which they embody one of the “Housewives” cast members and answer questions from me – dressed as host Andy Cohen – about their criminal cases.

Real takeaways

While the court of public opinion tends to quickly draw conclusions from limited information, my honors students learn that there is more than meets the eye when it comes to the U.S. justice system.

The Real Housewives of Criminology helps them to navigate the nuance beneath the headlines about popular crime news stories, in and beyond the “Bravosphere.”

C. Clare Strange does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Life isn’t all diamonds – money and fame don’t shield the many ‘Real Housewives’ facing criminal charges – https://theconversation.com/life-isnt-all-diamonds-money-and-fame-dont-shield-the-many-real-housewives-facing-criminal-charges-272762

Source: The Conversation – USA (3) – By Vanessa Corcoran, Adjunct Professor of History, Georgetown University

On the 800th anniversary of the death of St. Francis of Assisi, founder of the Franciscan order, his body will be displayed for the first time ever in February 2026, at the Basilica of San Francesco. Millions of visitors are expected to converge in the small Tuscan town of Assisi to honor the 13th-century saint.

Francis, who died on Oct. 4, 1226, espoused care for the poor and reverence for the natural world. Those values were reflected centuries later in the actions of Pope Francis. The late pope chose his papal name in honor of the medieval saint’s embrace of the poor and his teachings on the moral responsibility of caring for all creatures on Earth.

As a scholar of medieval religious history, I’m aware that several dramatic episodes near the end of Francis’s life played a decisive role in shaping his legacy as the founder of the Franciscan order. These events also explain why his radical messages around poverty and the environment still resonate today.

Born rich, yet sought a life of poverty

Born into a merchant family in the Umbrian town of Assisi, in present-day Italy, around 1181, Francis famously renounced his family’s wealth. One narrative recounts how he shed his garments in the public square, much to the embarrassment of his father. Early biographers described him as “Il Poverello,” or “The Little Poor One.”

In 1209, he founded the mendicant Franciscan order, a religious group devoted to works of charity.

What historians and theologians know about Francis comes primarily from his own writings and hagiographic texts. Hagiography is a form of religious biography that celebrates the virtuous lives of saints, often recounting miracles attributed to them, both in their lifetime and after their death. Devotees often visit their tombs to seek a miraculous intervention. Some of the hagiographies of Francis were written shortly after his death in 1226.

Thomas of Celano, a Franciscan friar who knew Francis personally, wrote “The Life of Francis,” published just two years after his passing. This hagiography played a central role in his rapid canonization. It provided a detailed account of Francis’ life, and Pope Gregory IX relied on its evidence that Francis’ deeds merited sainthood.

Thirteenth-century theologian and philosopher St. Bonaventure wrote the “Life of St. Francis,” now regarded as the most comprehensive account of Francis’ life. This second religious biography captures not just the key events of Francis’ life, but it also articulates his enduring legacy as the founder of the Franciscans. There are currently about 650,000 Franciscans worldwide. Members of the Franciscan order are active in over 100 countries worldwide, focusing on issues of poverty, mission and education.

Both narratives describe key moments from Francis’ early years: After taking a vow of poverty, Francis begged for alms and also worked in leper colonies near Assisi. During this period, he founded the Franciscan order.

In 1210, he traveled to Rome and received papal approval for the order from Pope Innocent III.

In 1219, Francis traveled to Egypt to meet with Sultan al-Malik al-Kamil during the Fifth Crusade. He initially attempted to convert al-Kamil to Christianity through his preaching. According to Christian texts, the meeting ultimately led to safer conditions for prisoners of war during the Crusades.

Miracles and legends

The end of Francis’ life was believed to be marked by spiritual encounters that many Catholics interpret as signs of his holiness.

Recounted in great detail in the 13th-century hagiographies, these stories explain why he later became closely associated with animals and protection of the natural world. These encounters have also been replicated numerous times in artistic renderings of Francis.

As an itinerant preacher, Francis regularly traveled throughout Italy to spread the Gospel. But on one occasion, Francis paused to preach to a flock of birds. According to legend, they listened in rapt attention.

Thomas of Celano notes that from that day on, Francis’ sermons were not just intended for people but for “all birds, all animals, all reptiles, and also insensible creatures, to praise and love the creator.”

The idea that animals became transfixed by Francis’ preaching was reiterated in other devotional texts. In the 14th-century account “The Little Flowers of St. Francis,” there is another legendary story that Francis’ preaching reportedly stopped a wolf from terrorizing the Tuscan town of Gubbio.

Francis spoke to the wolf and extended his arm. According to the legend, the wolf then stretched out his paw as if to shake his hand. Such stories became central to shaping Francis’ identity as the patron saint of animals and, later, of the natural world.

In 1224, a severe illness left Francis nearly blind. Unable to write, he dictated the “Canticle of the Sun,” or “Canticle of the Creatures,” often considered the first major work in Italian vernacular literature.

Despite his failing eyesight, this devotional text reflects poetically on the beauty of God’s creations, referring to animals as “brothers and sisters.” It praises how the Earth “sustains us and governs and … produces various fruits with colored flowers and herbs.”

Notably, Francis became the first person believed to receive the stigmata – wounds believed to mirror those of Christ’s crucifixion. Eyewitness accounts of Sept. 17, 1224, later recorded by Thomas of Celano, noted:

“A little before his death, our brother and father (Francis) appeared as if crucified, bearing in his body the five wounds which are truly the stigmata of Christ. In fact, his hands and feet had something like perforations made by the nails, front and back, that retained scars and showed the blackness of the nails. And to his side, he seemed to be pierced and blood often flowed out.”

Italian Renaissance artist Giotto di Bondone depicted these scenes in an elaborate fresco cycle in the Basilica of Santa Croce in Florence. These wounds furthered the idea of Francis as Christ-like: a motif explored often in devotional writing.

Influence on the modern-day papacy

Though Francis of Assisi was already recognized as a formative historical figure, he received renewed global attention on March 13, 2013, when then-Cardinal Jorge Mario Bergoglio broke with the church tradition of taking a name in honor of a papal predecessor. He took the name Francis.

The choice was deliberate, given that Francis of Assisi’s mission was tied to living a life of poverty and caring for others. Soon after his election to the papacy, Francis expounded on his reasoning of his papal name, affirming that his namesake was “the man of poverty, the man of peace, the man who loves and protects creation.”

The “Canticle of the Sun” later shaped the pope’s signature 2015 encyclical, “Laudato Si’” – “Care for Our Common Home.” The first papal encyclical devoted to the environment, the document called for global dialogue and action to protect the planet. In it, Pope Francis wrote that Francis of Assisi “shows us just how inseparable the bond is between concern for nature, justice for the poor, commitment to society, and interior peace.” Since the death of the pope, “Laudato Si” has been hailed as one of the lasting contributions of the first Jesuit and Latin American-born pope.

As pilgrims travel to Assisi during this special Jubilee year of St. Francis, the church has emphasized it is not just about seeing the remains of the medieval visionary but to remember this “model of holiness of life and a constant witness of peace.”

Although this medieval saint, most commonly known through frescoes and fragmented texts, may seem like a distant historical figure, Francis’ teachings on care for the poor and responsibility toward the environment offer a lasting message to the 21st century.

Vanessa Corcoran does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. 800 years after his death, the legends and legacy of Francis of Assisi endure – https://theconversation.com/800-years-after-his-death-the-legends-and-legacy-of-francis-of-assisi-endure-271482

Source: The Conversation – USA – By Zeb Rocklin, Associate Professor of Physics, Georgia Institute of Technology

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

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Is the whole universe just a simulation? – Moumita B., age 13, Dhaka, Bangladesh

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How do you know anything is real? Some things you can see directly, like your fingers. Other things, like your chin, you need a mirror or a camera to see. Other things can’t be seen, but you believe in them because a parent or a teacher told you, or you read it in a book.

As a physicist, I use sensitive scientific instruments and complicated math to try to figure out what’s real and what’s not. But none of these sources of information is entirely reliable: Scientific measurements can be wrong, my calculations can have errors, even your eyes can deceive you, like the dress that broke the internet because nobody could agree on what colors it was.

Because every source of information – even your teachers – can trick you some of the time, some people have always wondered whether we can ever trust any information.

If you can’t trust anything, are you sure you’re awake? Thousands of years ago, Chinese philosopher Zhuangzi dreamed he was a butterfly and realized that he might actually be a butterfly dreaming he was a human. Plato wondered whether all we see could just be shadows of true objects. Maybe the world we live in our whole lives inside isn’t the real one, maybe it’s more like a big video game, or the movie “The Matrix.”

The simulation hypothesis

The simulation hypothesis is a modern attempt to use logic and observations about technology to finally answer these questions and prove that we’re probably living in something like a giant video game. Twenty years ago, a philosopher named Nick Bostrom made such an argument based on the fact that video games, virtual reality and artificial intelligence were improving rapidly. That trend has continued, so that today people can jump into immersive virtual reality or talk to seemingly conscious artificial beings.

Bostrom projected these technological trends into the future and imagined a world in which we’d be able to realistically simulate trillions of human beings. He also suggested that if someone could create a simulation of you that seemed just like you from the outside, it would feel just like you inside, with all of your thoughts and feelings.

Suppose that’s right. Suppose that sometime in, say, the 31st century, humanity will be able to simulate whatever they want. Some of them will probably be fans of the 21st century and will run many different simulations of our world so that they can learn about us, or just be amused.

Here’s Bostrom’s shocking logical argument: If the 21st century planet Earth only ever existed one time, but it will eventually get simulated trillions of times, and if the simulations are so good that the people in the simulation feel just like real people, then you’re probably living on one of the trillions of simulations of the Earth, not on the one original Earth.

This argument would be even more convincing if you actually could run powerful simulations today, but as long as you believe that people will run those simulations someday, then you logically should believe that you’re probably living in one today.

Signs we’re living in a simulation … or not

If we are living in a simulation, does that explain anything? Maybe the simulation has glitches, and that’s why your phone wasn’t where you were sure you left it, or how you knew something was going to happen before it did, or why that dress on the internet looked so weird.

There are more fundamental ways in which our world resembles a simulation. There is a particular length, much smaller than an atom, beyond which physicists’ theories about the universe break down. And we can’t see anything more than about 50 billion light-years away because the light hasn’t had time to reach us since the Big Bang. That sounds suspiciously like a computer game where you can’t see anything smaller than a pixel or anything beyond the edge of the screen.

Of course, there are other explanations for all of that stuff. Let’s face it: You might have misremembered where you put your phone. But Bostrom’s argument doesn’t require any scientific proof. It’s logically true as long as you really believe that many powerful simulations will exist in the future. That’s why famous scientists like Neil deGrasse Tyson and tech titans like Elon Musk have been convinced of it, though Tyson now puts the odds at 50-50.

Others of us are more skeptical. The technology required to run such large and realistic simulations is so powerful that Bostrom describes such simulators as godlike, and he admits that humanity may never get that good at simulations. Even though it is far from being resolved, the simulation hypothesis is an impressive logical and philosophical argument that has challenged our fundamental notions of reality and captured the imaginations of millions.

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Hello, curious kids! Do you have a question you’d like an expert to answer? Ask an adult to send your question to CuriousKidsUS@theconversation.com. Please tell us your name, age and the city where you live.

And since curiosity has no age limit – adults, let us know what you’re wondering, too. We won’t be able to answer every question, but we will do our best.

Zeb Rocklin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Is the whole universe just a simulation? – https://theconversation.com/is-the-whole-universe-just-a-simulation-268177

Source: The Conversation – USA – By Amy Pope, Principal Lecturer of Physics and Astronomy, Clemson University

During the 2026 Winter Olympics, athletes will leap off ramps, slide across ice and spin through the air. These performances will look different to my students who have studied physics through sports. These feats will be something the students have already measured, modeled or felt. As a physicist, I help my students see the games as a place where classroom lessons come to life.

I spend a lot of time thinking about how abstract ideas such as kinematics, forces, energy, momentum and motion are understood in the real world. Recently, I listened to a meeting of the Clemson football team’s offense to gain an appreciation for what my student-athletes do. But I came out with an idea for a new introductory physics class.

While sitting in the back row, listening to the coach break down the Tigers’ upcoming game, I realized that I could understand every single word said, despite never having played football. Most of the guys were called Sam or Mike, and they continually talked about gaps and boxes. I knew the terminology. I followed the diagrams. I could repeat the language. And yet, I understood absolutely nothing about how that information translated into a strategy for winning the game.

It dawned on me that my confusion is likely similar to how many students experience physics. They can follow the individual pieces, equations, definitions and vocabulary, but they have trouble connecting those pieces to real-world meaning. Physics makes sense as a subject of study, yet it often seems disconnected from everyday life.

I created Clemson’s Physics of Sports class to close the gap. The course begins not with abstract problems or idealized systems, but with sports that people already care about. The class then reveals the physics that make those activities possible.

Physics in skiing

Many introductory, algebra-based physics courses have students study frictionless blocks sliding down imaginary planes. In my course, students analyze the newest Olympic sports.

Ski mountaineering, making its Olympic debut in 2026, requires athletes to climb steep, snow-covered slopes entirely under their own power. My students uncover an elegant physics problem involving friction, the force that resists sliding between surfaces.

To accelerate uphill, the skis must experience a small amount of friction while moving in the forward direction. However, the same ski must provide enough friction in the opposite direction to prevent the skier from sliding back down the slope.

Skiers resolve this contradiction using climbing skins on their skis that are engineered to grip the snow in one direction while allowing smooth sliding in the opposite direction. In class, students examine how the skin material’s design helps climbers summit the mountain efficiently.

Students also look at how specialized materials assist in ski jumping.

The skintight suits skiers wear are not for aesthetics; they help control the physics of air. Loose fabric increases drag and can even generate lift, much like a wingsuit worn by skydivers. Tight-fitting clothing minimizes these effects, making competition fairer by leveling the field for all athletes.

Physics in skating

When it comes to skating, small changes in physics can set medalists apart from the rest of the field. In class, students investigate how speedskaters can lean dramatically toward the ice without falling by analyzing their centripetal acceleration and the forces acting on their bodies during high-speed turns. Centripetal acceleration is the accelerating force directed toward the center of a turn. It keeps the skater moving in a curved path rather than moving along a straight path.

Figure skating provides another striking example where small changes in body positioning can dramatically affect the athlete’s performance. Angular momentum, which describes how much rotational motion an object has, depends on both how fast the object spins and how its mass is distributed. Angular momentum allows skaters to control how many times they spin in midair.

In class, students don’t just watch the elite athletes – they model these concepts with their own movements. By sitting on a rotating stool with weights in their outstretched hands, students emulate a figure skater by pulling their arms inward and spinning much faster as their mass moves closer to their axis of rotation.

Physics in action

By studying sports, students begin to see physics not as a collection of formulas but as a framework for understanding how the world works. A basic understanding of physics allows students to critically evaluate everyday claims, ranging from viral sports clips to misleading headlines and exaggerated performance claims.

In highlight reels, for example, athletes often appear to steer left or right after taking off on a jump. Physics students know that can’t be the case – once airborne, there is no way to change that path without pushing on something.

Elite athletic performances aren’t the only places to see physics in action, of course. The same principles underlie most everyday experiences. With sports as an entry point, students can learn a language that allows them to interpret the physical world around them.

Physics does not live only in textbooks or exams. It is written into every stride, turn and jump, at every level, from recreational activities to Olympic competitions.

Amy Pope does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. From ski jumping to speedskating, winter sports represent physics in action – https://theconversation.com/from-ski-jumping-to-speedskating-winter-sports-represent-physics-in-action-272958