Category: The Conversation – Global Perspectives

Source: The Conversation – Global Perspectives – By Konstantine Panegyres, Lecturer in Classics and Ancient History, The University of Western Australia

These days when you see people exercising, they’re usually also listening to music, whether they’re at the gym, or out jogging on the street.

It makes sense, as studies have shown listening to music can help you get the most out of a workout.

Somehow the ancient Greeks and Romans knew this too, long before modern science was there to back it.

A more than 2,000-year-old habit

In his oration To the People of Alexandria, the Greek writer Dio Chrysostom (40-110 CE) complained about a phenomenon he saw all the time.

Dio wrote people loved to listen to music in their daily activities. According to him, music could be found in the courtroom, in the lecture theatre, in the doctor’s room, and even in the gym.

“Everything is done to music […] people will presently go so far as to use song to accompany their exercise in the gymnasium,” Dio wrote.

But exercising to music wasn’t a new thing in his day. This practice has been recorded across the ancient Greek and Roman worlds from the earliest times, and as far back as the poems of Homer (circa 800 BCE).

Why exercise to music?

There are many depictions of professional athletes training, or competing, to the accompaniment of music in ancient Greek vase paintings.

In one vase painting from the 5th century BCE, a group of athletes trains while a musician plays the aulos, a type of ancient pipe instrument.

The ancient writer Plutarch of Chaeronea (46-119 CE) tells us music was also played while people wrestled or did athletics.

Athenian writer Flavius Philostratus (circa 170-245 CE) offers clues as to why. In a book about gymnastics, Philostratus wrote music served to stimulate athletes, and that their performance might be improved through listening to music.

Today’s researchers have proven this to be true. One 2020 study involving 3,599 participants showed listening to music during exercise had many benefits, such as reducing the perception of fatigue and exertion, and improving physical performance and breathing.

Singing and trumpets

Since ancient people didn’t have electronic devices, they found other ways to exercise to music. Some had music played by a musician during their exercise routine. Others sang while they exercised.

Singing while playing ball games was particularly popular. In Homer’s Odyssey (circa 8th century BCE), Nausicaa, the daughter of the King of Phaeacia, plays a ball game with her girl friends, and they all sing songs as they play.

Similarly, the historian Carystius of Pergamum (2nd century BCE) wrote the women of his time “sang as they played ball”.

Another popular activity was dancing to music. Dancing was widely regarded as a gymnastic exercise people could do for better health.

One famous advocate of the benefits of dancing as exercise was the great Athenian philosopher Socrates (circa 470-399 BCE). According to the historian Diogenes Laertius (3rd century CE), “it was Socrates’ regular habit to dance, thinking that such exercise helped to keep the body in good condition”.

Apart from individuals using music in their personal exercise, soldiers also did training exercises, and marched to battle, to the sound of trumpets.

Don’t skip leg day

There was a belief in ancient Greek and Roman that music and exercise played an important role in shaping and developing the body and soul.

The ideal was harmony and moderation. The body and soul needed to be balanced and proportionate in all their parts, without any excess. As such, doing one kind of exercise too often, or exercising one body part excessively, was frowned upon.

The physician Galen of Pergamum (129-216 CE) criticised types of exercise that focused too much on one part of the body. He preferred ball games as they exercised the whole body evenly.

Immoderation in music – that is, listening to too much, or listening to music that was too emotional – was also sometimes frowned upon.

For example, the Athenian philosopher Plato (circa 428-348 BCE) famously argued most music should be censored as it can stir the passions too strongly. Plato thought only simple and unemotional music, listened to in moderation, should be allowed.

If the ancients could see today’s people running along the pavement with music thumping in their ears, they would surely be amazed. And they’d probably approve – as long as it wasn’t being done in excess.

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

– ref. Can’t work out without music? Neither could the ancient Greeks and Romans – https://theconversation.com/cant-work-out-without-music-neither-could-the-ancient-greeks-and-romans-258069

Source: The Conversation – Global Perspectives – By Anthony Blazevich, Professor of Biomechanics, Edith Cowan University

You’re standing at your front door, facing a five kilometre commute to work. But you don’t have your car, and there’s no bus route. You can walk for an hour – or jump on your bicycle and arrive in 15 minutes, barely breaking a sweat. You choose the latter.

Many people would make the same choice. It’s estimated that there are more than a billion bikes in the world. Cycling represents one of the most energy-efficient forms of transport ever invented, allowing humans to travel faster and farther while using less energy than walking or running.

But why exactly does pedalling feel so much easier than pounding the pavement? The answer lies in the elegant biomechanics of how our bodies interact with this two-wheeled machine.

A wonderfully simple machine

At its heart, a bicycle is wonderfully simple: two wheels (hence “bi-cycle”), pedals that transfer power through a chain to the rear wheel, and gears that let us fine-tune our effort. But this simplicity masks an engineering that perfectly complements human physiology.

When we walk or run, we essentially fall forward in a controlled manner, catching ourselves with each step. Our legs must swing through large arcs, lifting our heavy limbs against gravity with every stride. This swinging motion alone consumes a lot of energy. Imagine: how tiring would it be to even swing your arms continuously for an hour?

On a bicycle, your legs move through a much smaller, circular motion. Instead of swinging your entire leg weight with each step, you’re simply rotating your thighs and calves through a compact pedalling cycle. The energy savings are immediately noticeable.

But the real efficiency gains come from how bicycles transfer human power to forward motion. When you walk or run, each footstep involves a mini-collision with the ground. You can hear it as the slap of your shoe against the road, and you can feel it as vibrations running through your body. This is energy being lost, literally dissipated as sound and heat after being sent through your muscles and joints.

Walking and running also involve another source of inefficiency: with each step, you actually brake yourself slightly before propelling forward. As your foot lands ahead of your body, it creates a backwards force that momentarily slows you down. Your muscles then have to work extra hard to overcome this self-imposed braking and accelerate you forward again.

Kissing the road

Bicycles use one of the world’s great inventions to solve these problems – wheels.

Instead of a collision, you get rolling contact – each part of the tyre gently “kisses” the road surface before lifting off. No energy is lost to impact. And because the wheel rotates smoothly so the force acts perfectly vertically on the ground, there’s no stop-start braking action. The force from your pedalling translates directly into forward motion.

But bicycles also help our muscles to work at their best. Human muscles have a fundamental limitation: the faster they contract, the weaker they become and the more energy they consume.

This is the famous force-velocity relationship of muscles. And it’s why sprinting feels so much harder than jogging or walking – your muscles are working near their speed limit, becoming less efficient with every stride.

Bicycle gears solve this problem for us. As you go faster, you can shift to a higher gear so your muscles don’t have to work faster while the bike accelerates. Your muscles can stay in their sweet spot for both force production and energy cost. It’s like having a personal assistant that continuously adjusts your workload to keep you in the peak performance zone.

Walking sometimes wins out

But bicycles aren’t always superior.

On very steep hills of more than about 15% gradient (so you rise 1.5 metres every 10 metres of distance), your legs struggle to generate enough force through the circular pedalling motion to lift you and the bike up the hill. We can produce more force by pushing our legs straight out, so walking (or climbing) becomes more effective.

Even if roads were built, we wouldn’t pedal up Mount Everest.

This isn’t the case for downhills. While cycling downhill becomes progressively easier (eventually requiring no energy at all), walking down steep slopes actually becomes harder.

Once the gradient exceeds about 10% (it drops by one metre for every ten metres of distance), each downhill step creates jarring impacts that waste energy and stress your joints. Walking and running downhill isn’t always as easy as we’d expect.

Not just a transportation device

The numbers speak for themselves. Cycling can be at least four times more energy-efficient than walking and eight times more efficient than running. This efficiency comes from minimising three major energy drains: limb movement, ground impact and muscle speed limitations.

So next time you effortlessly cruise past pedestrians on your morning bike commute, take a moment to appreciate the biomechanical work of art beneath you. Your bicycle isn’t just a transport device, but a perfectly evolved machine that works in partnership with your physiology, turning your raw muscle power into efficient motion.

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

– ref. Cycling can be 4 times more efficient than walking. A biomechanics expert explains why – https://theconversation.com/cycling-can-be-4-times-more-efficient-than-walking-a-biomechanics-expert-explains-why-257120

Source: The Conversation – Global Perspectives – By Nicole Lee, Adjunct Professor at the National Drug Research Institute (Melbourne based), Curtin University

Alcohol has many negative effects on our health, some of which may surprise you. These include short-term impacts such as waking up with a pounding head or anxiety, to long-term effects including cancer.

If you are thinking about taking some time off alcohol, you’ll find many quick wins and long-term gains for your health.

How long will you have to wait to feel the benefits?

We’ve made a timeline – based on scientific research – that shows what you might feel in the first days, weeks, months and years after taking a break from alcohol.

Some benefits start immediately, so every day without alcohol is a win for your health.

After one day

Alcohol takes around 24 hours to completely leave your body, so you may start noticing improvements after just one day.

Alcohol makes you need to urinate more often, causing dehydration. But your body can absorb a glass of water almost immediately, so once alcohol is out of your system alcohol dehydration is reduced, improving digestion, brain function and energy levels.

Alcohol also reduces the liver’s ability to regulate blood sugar. Once alcohol leaves the system, blood sugar begins to normalise.

If you are a daily drinker you may feel a bit worse to start with while your body adjusts to not having alcohol in its system all the time. You may initially notice disrupted sleep, mood changes, sweating or tremors. Most symptoms usually resolve in about a week without alcohol.

After one week

Even though alcohol can make you feel sleepy at first, it disrupts your sleep cycle. By the end of an alcohol-free week, you may notice you are more energetic in the mornings as a result of getting better quality sleep.

As the body’s filter, the liver does much of the heavy lifting in processing alcohol and can be easily damaged even with moderate drinking.

The liver is important for cleaning blood, processing nutrients and producing bile that helps with digestion.

But it can also regenerate quickly. If you have only mild damage in the liver, seven days may be enough to reduce liver fat and heal mild scarring and tissue damage.

Even small amounts of alcohol can impair brain functioning. So quitting can help improve brain health within a few days in light to moderate drinkers and within a month even for very heavy dependent drinkers.

After one month

Alcohol can make managing mood harder and worsen symptoms of anxiety and depression. After a few weeks, most people start to feel better. Even very heavy drinkers report better mood after one to two months.

As your sleep and mood improve you may also notice more energy and greater wellbeing.

After a month of abstinence regular drinkers also report feeling more confident about making changes to how they drink.

You may lose weight and body fat. Alcohol contains a lot of kilojules and can trigger hunger reward systems, making us overeat or choose less healthy foods when drinking.

Even your skin will thank you. Alcohol can make you look older through dehydration and inflammation, which can be reversed when you quit.

Alcohol irritates the gut and disrupts normal stomach functioning, causing bloating, indigestion, heartburn and diarrhoea. These symptoms usually start to resolve within four weeks.

One month of abstinence, insulin resistance – which can lead to high blood sugar – significantly reduces by 25%. Blood pressure also reduces (by 6%) and cancer-related growth factors declines, lowering your risk of cancer.

After six months

The liver starts to repair within weeks. For moderate drinkers, damage to your liver could be fully reversed by six months.

At this point, even heavy drinkers may notice they’re better at fighting infections and feel healthier overall.

After one year or more

Alcohol contributes to or causes a large number of chronic diseases, including heart disease, stroke, type 2 diabetes, and seven different types of cancer, as well as mental health issues. All of these risks can be reduced by quitting or cutting back on alcohol.

Alcohol increases blood pressure. High blood pressure (hypertension) is the top risk factor for death in the world. A small 2mmHg increase in blood pressure above the normal range (120mmHG) increases death from stroke by 10% and from coronary artery disease by 7%.

Cutting back on alcohol to less than two drinks a day can reduce blood pressure significantly, reducing risk of stroke and heart disease. Reducing blood pressure also reduces risk of kidney disease, eye problems and even erectile dysfunction.

With sustained abstinence, your risk of getting any type of cancer drops. One study looked at cancer risk for more than 4 million adults over three to seven years and found the risk of alcohol-related cancer dropped by 4%, even for light drinkers who quit. Reducing from heavy to moderate drinking reduced alcohol-related cancer risk by 9%.

Making a change

Any reduction in drinking will have some noticeable and immediate benefits to your brain and general health. The less you drink and the longer you go between drinks, the healthier you will be.

Whether you aim to cut back or quit entirely, there are some simple things you can do to help you stick with it:

• set clear goals plus the smaller steps you need to take to get there

• pay attention to the benefits you notice from quitting

• monitor your progress with a Drink Tracker

• get support from others, for example Hello Sunday Morning’s anonymous Daybreak app, SMART Recovery, CounsellingOnline or Sober in the Country.

If you are still wondering about whether to make changes or not you can check your drinking risk here.

If you have tried to cut back and found it difficult you may need professional help. Call the National Alcohol and other Drug Hotline on 1800 250 015 and they will put you in touch with services in your area that can help. You can also talk to your GP.

We would like to thank Dr Hannah MacRae for assistance in identifying the research used in this article.

Nicole Lee works as a paid evaluation and training consultant in alcohol and other drugs. She has previously been awarded grants by state and federal governments, NHMRC and other public funding bodies for alcohol and other drug research. She is CEO of Hello Sunday Morning.

Dr Katinka van de Ven is the Research Manager of Hello Sunday Morning. She also works as a paid evaluation and training consultant in alcohol and other drugs. Katinka has previously been awarded grants by state governments and public funding bodies for alcohol and other drug research.

– ref. Even a day off alcohol makes a difference – our timeline maps the health benefits when you stop drinking – https://theconversation.com/even-a-day-off-alcohol-makes-a-difference-our-timeline-maps-the-health-benefits-when-you-stop-drinking-249272

Source: The Conversation – Global Perspectives – By Nick Draper, Professor of Sport and Exercise Science, University of Canterbury

The widely held view among rugby players, coaches and officials is that headgear can’t prevent concussion. If so, why wear it? It’s hot, it can block vision and hearing, and it can be uncomfortable.

Headgear was originally designed to protect players from cuts and abrasions. But players still hope it will offer them a degree of protection against the collisions they experience in the game. Some players adopt it after previous concussions.

We’re now seeing increasing numbers of professional players opting in. The Irish men’s team, for example, field up to five players each match sporting headgear. In Japan, it’s mandatory for juniors. And more parents in New Zealand are making their children wear it, too.

The exact specifications for rugby match kit – boots, shorts, shoulder pads and
headgear – are regulated through World Rugby’s Law 4 and Regulation 12. In 2019, the governing body launched a trial enabling players to wear headgear with new technical specifications in training and matches.

The specifications have meant manufacturers can take advantage of novel “isotropic” materials that can potentially reduce the impact forces experienced by players.

Conventional headgear is composed of soft foams that flatten when a player’s head collides with the ground or another player. As such, they can only minimally absorb those collision forces.

Isotropic materials behave differently. They can absorb impacts from multiple directions and may offer a level of protection against the effects on a player’s head of a tackle or other collision event.

Given these changes, and in light of recent research, we may need to change the narrative around rugby headgear: while it may not prevent concussion, it might reduce the total contact “burden” experienced by players in a game and over a whole season. And this could have benefits for long-term brain health.

Impacts across seasons and careers

Contact in rugby – through tackles, at the breakdown, and in scrums and lineouts – leads to players experiencing a number of collisions or “head acceleration events”. This contact is most commonly head to ground, head to body or head to head.

By having players use “smart” mouthguards with embedded micro-accelerometers and gyroscopes to capture head movements, researchers can now measure each collision and each player’s contact load in a game – and potentially over a career.

A player’s total contact load is found by adding together the magnitude of the impacts they experience in a game. These are measured as “peak linear accelerations” or “peak rotational accelerations”.

While past research and media attention has focused on concussion, it has become clear the total contact burden in training and matches – the total “sub-concussive knocks” through head acceleration events – may be as important, if not more so.

One of our own research projects involved following 40 under-16 players wearing smart mouthguards for all training and matches across one season. Peak Linear accelerations are measured as a g-force (g). Activities such as such as running, jumping and shaking the head would measure under 8g, for example, whereas heading a soccer ball might measure 31g.

The results of our study showed the players differed greatly in their cumulative exposure over a whole season, from 300g to nearly 14,000g. These differences would be amplified further over an entire rugby career.

Some of the variation is likely due to a player’s team position, with loose forwards having a greater burden than others. But it also seems some players just enjoy the contact aspects of the game more than others.

Potential benefits of new headgear materials

Researcher Helen Murray at the University of Auckland has highlighted the need for more research into the burden of collisions, rather than just concussions, over a rugby career. In particular, we need to know more about its effect on future brain health.

We hope to contribute to this by following our existing cohort of players through their careers. In the meantime, our research has examined the potential of existing rugby headgear and new isotropic materials to mitigate peak accelerations in rugby collisions.

Using the field data collected from male and female players over the past four seasons, we have designed laboratory testing protocols to compare the conventional and newer materials.

The results suggest the new forms of headgear do have the potential to reduce the impact burden for players.

We found 55–90% of head acceleration events do involve direct contact with the head. As such, collision-mitigation headgear could be beneficial. And our laboratory testing produced an estimated 30% reduction in peak linear accelerations with the headgear compared to without.

The nature of concussion is complex and related to the size of an impact as well as its direction and angle. For instance, we observed the concussions experienced by the junior players occurred between 12g and 62g – well below the male threshold of 70g requiring professional players to be removed from the field for a head injury assessment.

Currently, it seems unlikely headgear can prevent concussion. But it does appear new headgear materials could significantly reduce the total impact burden for players during their careers. And this may help safeguard their future brain health.

Nick Draper receives funding from the Health Research Council, Cure Kids, the Neurological Foundation, Canterbury Medical Research Foundation, Pacific Radiology Group, the Maurice and Phyllis Paykel Trust, and the UC Foundation.

– ref. Rugby headgear can’t prevent concussion – but new materials could soften the blows over a career – https://theconversation.com/rugby-headgear-cant-prevent-concussion-but-new-materials-could-soften-the-blows-over-a-career-258912

Source: The Conversation – Global Perspectives – By Belinda Clarence, Law Lecturer, RMIT University

During the recent conflict between Iran and Israel, Iran threatened to block the Strait of Hormuz, one of the world’s major shipping routes.

Would that be possible, and what effects would it have?

The Strait of Hormuz is a choke point at the entrance to the Persian Gulf. It is used to transport about 20% of global daily oil consumption.

Iran effectively controls this crucial shipping route because it is a coastal state bordering this narrow stretch of water. The strait is too narrow to avoid navigating waters claimed by Iran. This raises thorny legal questions about whether it is really possible for Iran to block the strait, and what recourse other states have if it does.

This geographical reality is far from new, and the legal frameworks governing international maritime activity have developed over centuries. At its heart is the lex mercatoria — the “law of merchants” — a body of transnational commercial law that emerged organically from the practices of traders operating across borders.

Within this broader framework sits the lex maritima, or customary maritime law, which has long adapted to the hazards of shipping across vast oceans.

The lex maritima originated from the shared practices of seafarers and merchants. Its purpose? To manage the unpredictable nature of maritime trade that demands coherent and stable rules.

One of the most enduring principles of this legal tradition is the idea of mare liberum, or “the free sea”, set out by Dutch jurist Hugo Grotius in 1609. He argued the high seas should remain open to all for peaceful navigation and trade. This conveniently legitimised the ambitions of European colonial powers, granting them unfettered access to global maritime routes at a time when control over sea-based trade promised immense economic and strategic advantage.

The shifting boundaries of maritime law

One of the most fundamental questions in maritime law is: where do a nation’s territorial waters end, and the high seas begin?

After the second world war, a series of conferences culminated in the United Nations Convention on the Law of the Sea (UNCLOS), where the customary 3 nautical miles (5.56km) of territorial waters states could claim as their own was extended. This narrow limit was rooted more in historical naval range – the so-called “cannon shot rule” – than in modern geopolitical or environmental realities.

In 1959, Iran took the unusual step of unilaterally extending its territorial sea to 12 nautical miles, despite not being a party to UNCLOS. Two decades later, following the 1979 Iranian Revolution and the US Embassy hostage crisis, Washington grew increasingly anxious about the security of oil flows from the Persian Gulf. These concerns intensified during the Iran-Iraq War, especially as Iran began using small islands in the Strait of Hormuz to deploy military forces and threaten commercial shipping.

UNCLOS and the new rules of the sea

One of the key compromises of UNCLOS was an extension of territorial waters for states that ratified the treaty. In exchange, UNCLOS replaced the older concept of “innocent passage” – which allowed only surface navigation through territorial seas – with the broader notion of “transit passage”. Under this regime, vessels and aircraft from other states are granted the right to travel not only on the surface, but also under the sea and through the air above straits used for international navigation.

While 169 states have ratified UNCLOS, both Iran and the United States remain notable holdouts. This means Iran does not enjoy the broader 12-nautical-mile limit recognised under UNCLOS, and the US cannot claim the agreement’s protections for transit passage through strategic choke points.

While the geopolitical and legal tensions surrounding the Strait of Hormuz may seem far removed from the world of private commerce, the global economy continues to function thanks to a powerful legal tool: the contract. Contracts offer a predictable framework that allows trade across borders without parties needing to trust one another personally.

The Strait of Hormuz is bordered by active, assertive states such as Iran, which means the potential for interstate conflict is relatively high. This doesn’t mean commercial contracts are irrelevant to the recent dispute in the Strait of Hormuz — far from it. But their influence is more indirect.

What can be learned?

Without significant political change in Tehran, it’s unlikely either Iran or the US will shift its position on adopting UNCLOS. Yet despite Iran’s repeated threats to close the strait, it has never followed through — and the US Navy continues to maintain a steady presence in the region. For now, a fragile but persistent equilibrium holds.

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

– ref. What is the Strait of Hormuz and why is it so important for global shipping? – https://theconversation.com/what-is-the-strait-of-hormuz-and-why-is-it-so-important-for-global-shipping-260920

Source: The Conversation – Global Perspectives – By Bruce Wolpe, Non-resident Senior Fellow, United States Study Centre, University of Sydney

The ABC dodged a bullet in the Australian election. The Albanese government supports the ABC. In the United States, however, the 2024 presidential election severely wounded public media in America.

Fresh from his decisive victory in Congress – passage of the One Big Beautiful bill that locks in the legislation to prosecute Trump’s domestic policy agenda – Trump is demanding Congress cancel funding for public media, the Public Broadcasting Service (PBS) and National Public Radio (NPR). Hardliners in the US House of Representatives have already voted to end all federal funding for public media. The Senate will vote on this issue in mid-July.

We have tale of two vital and powerful media institutions in Australia and the US. What happens over there can affect what happens here.

Towards the end of Australia’s election campaign, Peter Dutton, then leader of the Liberal Party, opened up on the ABC. He looped in The Guardian for good measure. And he implied other media deserved his words:

Forget about what you have been told by the ABC, The Guardian and the other hate media.

Dutton’s words embellished previous policies under Coalition governments, with budget cuts to the ABC of over $500 million, and several inquiries into the degree of ABC’s neutrality and objectivity in its coverage of news and current affairs.

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Read more:
Peter Dutton calling the ABC and the Guardian ‘hate media’ rings alarm bells for democracy

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Kim Williams, chair of the ABC, said the network would “perform well” under any scrutiny from a Dutton government. Dutton himself, shortly before the election, demanded the ABC show “excellence” in order to prove to taxpayers that its almost $1.2 billion annual budget was justified.

The Coalition’s defeat aided the ABC’s victory in its longstanding quest for financial stability and future growth. The ABC can continue to build on the commitments established by the Albanese Labor government in 2023 – even though there are choppy waters for the ABC as its new leadership makes programming and staffing decisions for the years ahead.

With a new Coalition shadow cabinet in place, we will see as future budgets play out whether they have changed their tune on their approach to the ABC.

We will see how both the government and the Coalition react to Kim Williams’ powerful case he recently presented for “more investment for much-needed renewal” in the ABC.

Public media in Trump’s America

In America today, public media are facing Trump’s wrath.

Trump’s hatred of mainstream media is legendary. For the past decade, Trump has called the major media outlets the “enemy of the people” – the same label that Soviet dictator Joseph Stalin used against those who dared to oppose him.

In his second term, Trump is engaged in aggressive muscling of the enemies he sees in the media. The Associated Press is barred from the pool of journalists covering the president. Trump has silenced the Voice of America. The US ABC and CBS television networks have both settled lawsuits filed by Trump to seek damages for their broadcast coverage of him and the 2024 presidential campaign. The price to help avoid regulatory punishment by the government of those two networks: $US16 million (A$24.5 million) each.

For a country that established freedom of the press under its Constitution, Trump’s attacks on news media are an ongoing assault on America’s democracy.

Trump’s attacks on PBS and NPR show the existential threat they face.

In 1967, Congress established and funded the Corporation for Public Broadcasting to bring to life public television and radio across America. Money from CPB supports the stations. The stations contract with PBS and NPR to help produce the programming they air, from the PBS NewsHour, Frontline and Sesame Street on PBS to Morning Edition and All Things Considered on NPR – and much more.

Trump holds the same sentiment that Dutton expressed against the ABC – that the public broadcasters are biased toward the “extreme woke Marxist left”. Trump wrote on Truth Social that:

Jim Jordan of Ohio, one of the most influential Republican leaders in the House of Representatives, was in-your-face direct on the case against public media:

This bill’s real simple. Don’t spend money on stupid things, and don’t subsidize biased media.

In late April, Trump ordered the firing of three of CPB’s five directors. On May 1, Trump issued an executive order that will savage public media’s existence:

At the very least, Americans have the right to expect that if their tax dollars fund public broadcasting at all, they fund only fair, accurate, unbiased, and nonpartisan news coverage […] The CPB fails to abide by these principles to the extent it subsidizes NPR and PBS.“

Public media has filed red-hot lawsuits against Trump and his officials for crushing the First Amendment free-speech rights of public televion and radio stations, and for cancelling funds appropriated by Congress. The court rulings in these cases will be crucial to the outcome.

The last near-fatal threat to public broadcasting was in 1981, when President Ronald Reagan sought Congress’ approval to decimate its funding. Under Reagan conservatism, media belong in the private sector. The conservative’s political bias against public broadcasting framed the push to cancel government funding.

But Congress rose up successfully against the Reagan cuts – led not only by Democrats but with Senate Republicans from rural states who understood how important public broadcasting was to their communities. Their budgets were trimmed, but PBS and NPR were not decapitated.

Lessons for the ABC

The same is true here: ABC stations in country areas are similarly held in high regard.

The cuts to public media passed the US House by one vote on June 12.

The Senate will vote in the coming days. We will see if some Senate Republicans who voted against Trump’s One Big Beautiful bill last week will stand up again and vote to buck Trump on this issue and protect public media in their states.

If Trump succeeds in silencing public media in America, the Trump echo chamber in Australia will take note. Some hard conservatives in Canberra and the Murdoch media will likely leverage Congress’ approval of Trump’s order that PBS and NPR be punished for their left-wing bias and that public media should become the province of the private sector. Defunding public media in the US will sustain the sentiment that one day, under a future government here, the scythe will be wielded at the ABC.

If the US Senate supports Trump, the fight for the ABC in Australia – not just over money, but over its role, responsibilities and standing in Australia – may not be over.

Bruce Wolpe is a (non-resident) Senior Fellow at the United States Studies Centre at the University of Sydney. The views expressed herein are his own. Wolpe served on the staff of Prime Minister Julia Gillard. He worked on the Democratic staff in Congress on public broadcasting issues and was an executive with NPR. He is the author of two books on Trump and Australia.

– ref. Trump is aiming to silence public media in the US – and if he succeeds, his supporters here will take note – https://theconversation.com/trump-is-aiming-to-silence-public-media-in-the-us-and-if-he-succeeds-his-supporters-here-will-take-note-260584

Source: The Conversation – Global Perspectives – By Emma Shortis, Adjunct Senior Fellow, School of Global, Urban and Social Studies, RMIT University

Israeli Prime Minister Benjamin Netanyahu has formally nominated United States President Donald Trump for the Nobel Peace Prize. He says the president is “forging peace as we speak, in one country, in one region after the other”.

Trump, who has craved the award for years, sees himself as a global peacemaker in a raft of conflicts from Israel and Iran, to Rwanda and the Democratic Republic of Congo.

With the conflict in Gaza still raging, we ask five experts – could Trump be rewarded with the world’s most prestigious peace prize?

Emma Shortis is Director of International and Security Affairs at The Australia Institute, an independent think tank.

Jasmine-Kim Westendorf has received funding from the Australian Research Council.

Shahram Akbarzadeh receives funding from Australia Research Council.

Ali Mamouri and Ian Parmeter do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

– ref. Does Donald Trump deserve the Nobel Peace Prize? We asked 5 experts – https://theconversation.com/does-donald-trump-deserve-the-nobel-peace-prize-we-asked-5-experts-260801

Source: The Conversation – Global Perspectives – By Jon Whittle, Director, Data61, CSIRO

There’s been much talk recently – especially among politicians – about productivity. And for good reason: Australia’s labour productivity growth sits at a 60-year low.

To address this, Prime Minister Anthony Albanese has convened a productivity round table next month. This will coincide with the release of an interim report from the Productivity Commission, which is looking at five pillars of reform. One of these is the role of data and digital technologies, including artificial intelligence (AI).

This will be music to the ears of the tech and business sectors, which have been enthusiastically promoting the productivity benefits of AI. In fact, the Business Council of Australia also said last month that AI is the single greatest opportunity in a generation to lift productivity.

But what do we really know about how AI impacts productivity?

What is productivity?

Put simply, productivity is how much output (goods and services) we can produce from a given amount of inputs (such as labour and raw materials). It matters because higher productivity typically translates to a higher standard of living. Productivity growth has accounted for 80% of Australia’s income growth over the past three decades.

Productivity can be thought of as individual, organisational or national.

Your individual productivity is how efficiently you manage your time and resources to complete tasks. How many emails can you respond to in an hour? How many products can you check for defects in a day?

Organisational productivity is how well an organisation achieves its goals. For example, in a research organisation, how many top-quality research papers are produced?

National productivity is the economic efficiency of a nation, often measured as gross domestic product per hour worked. It is effectively an aggregate of the other forms. But it’s notoriously difficult to track how changes in individual or organisational productivity translate into national GDP per hour worked.

AI and individual productivity

The nascent research examining the relationship between AI and individual productivity shows mixed results.

A 2025 real-world study of AI and productivity involved 776 experienced product professionals at US multinational company Procter & Gamble. The study showed that individuals randomly assigned to use AI performed as well as a team of two without. A similar study in 2023 with 750 consultants from Boston Consulting Group found tasks were 18% faster with generative AI.

A 2023 paper reported on an early generative AI system in a Fortune 500 software company used by 5,200 customer support agents. The system showed a 14% increase in the number of issues resolved per hour. For less experienced agents, productivity increased by 35%.

But AI doesn’t always increase individual productivity.

A survey of 2,500 professionals found generative AI actually increased workload for 77% of workers. Some 47% said they didn’t know how to unlock productivity benefits. The study points to barriers such as the need to verify and/or correct AI outputs, the need for AI upskilling, and unreasonable expectations about what AI can do.

A recent CSIRO study examined the daily use of Microsoft 365 Copilot by 300 employees of a government organisation. While the majority self-reported productivity benefits, a sizeable minority (30%) did not. Even those workers who reported productivity improvements expected greater productivity benefits than were delivered.

AI and organisational productivity

It’s difficult, if not impossible, to attribute changes in an organisation’s productivity to the introduction of AI. Businesses are sensitive to many social and organisational factors, any one of which could be the reason for a change in productivity.

Nevertheless, the Organisation for Economic Co-operation and Development (OECD) has estimated the productivity benefits of traditional AI – that is, machine learning applied for an industry-specific task – to be zero to 11% at the organisational level.

A 2024 summary paper cites independent studies showing increases in organisational productivity from AI in Germany, Italy and Taiwan.

In contrast, a 2022 analysis of 300,000 US firms didn’t find a significant correlation between AI adoption and productivity, but did for other technologies such as robotics and cloud computing. Likely explanations are that AI hasn’t yet had an effect on many firms, or simply that it’s too hard to disentangle the impact of AI given it’s never applied in isolation.

AI productivity increases can also sometimes be masked by additional human labour needed to train or operate AI systems. Take Amazon’s Just Walk Out technology for shops.

Publicly launched in 2018, it was intended to reduce labour as customer purchases would be fully automated. But it reportedly relied on hiring around 1,000 workers in India for quality control. Amazon has labelled these reports “erroneous”.

More generally, think about the unknown number (but likely millions) of people paid to label data for AI models.

AI and national productivity

The picture at a national level is even murkier.

Clearly, AI hasn’t yet impacted national productivity. It can be argued that technology developments take time to affect national productivity, as companies need to figure out how to use the technology and put the necessary infrastructure and skills in place.

However, this is not guaranteed. For example, while there is consensus that the internet led to productivity improvements, the effects of mobile phones and social media are more contested, and their impacts are more apparent in some industries (such as entertainment) than others.

Productivity isn’t just doing things faster

The common narrative around AI and productivity is that AI automates mundane tasks, making us faster at doing things and giving us more time for creative pursuits. This, however, is a naive view of how work happens.

Just because you can deal with your inbox more quickly doesn’t mean you’ll spend your afternoon on the beach. The more emails you fire off, the more you’ll receive back, and the never-ending cycle continues.

Faster isn’t always better. Sometimes, we need to slow down to be more productive. That’s when great ideas happen.

Imagine a world in which AI isn’t simply about speeding up tasks but proactively slows us down, to give us space to be more innovative, and more productive. That’s the real untapped opportunity with AI.

Jon Whittle works at CSIRO which receives R&D funding from a wide range of government and industry clients.

– ref. Does AI actually boost productivity? The evidence is murky – https://theconversation.com/does-ai-actually-boost-productivity-the-evidence-is-murky-260690

Source: The Conversation – Global Perspectives – By Gary Mortimer, Professor of Marketing and Consumer Behaviour, Queensland University of Technology

The offer pops up in your social media feed. The website is professional and the imagery illustrates an Australian coastal region, or chic inner-CBD scene.

The brand name indicates this exclusive fashion retailer is based in Melbourne, Sydney, Adelaide, or an exclusive enclave such as Double Bay or Byron Bay.

The businesses have history, having apparently been “established” 30–40 years ago, and a story. The owners have reluctantly decided to close or relocate, resulting in significant discounts.

However, behind the illusion of prestige and luxury, is cheap, poorly manufactured clothing from Chinese factories.

The recent growth of these online “ghost stores” has led the Australian Consumer and Competition Commission to issue public warning notices about four websites.

Everly-melbourne.com, willowandgrace-adelaide.com, sophie-claire.com and doublebayboutique.com are the four named.

A new type of scam

The ACCC’s Targeting Scams report estimated Australians lost A$2.74 billion in 2023. Most losses were from investment scams ($1.3 billion), remote access scams ($256 million), and romance scams ($201.1 million).

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Read more:
3.5 million Australians experienced fraud last year. This could be avoided through 6 simple steps

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However, online ghost store scams are so new, researchers and government agencies have not yet had time to measure the financial impact these businesses are having on consumers or legitimate fashion businesses.

It is possible a consumer, once stung by a ghost store scam, will be less likely to shop with a legitimate online fashion retailer.

This type of emerging scam was touched on in a 2015 report called Framework for a Taxonomy of Fraud. The report noted there were businesses selling “worthless or non-existent products”. Their sites made:

misleading claims about products that are exaggerated, undervalued, or non-existent.

Since the beginning of 2025, the ACCC reports it has received at least 360 complaints about 60 online ghost retailers. It says many more may be operating across several social media sites.

Tricky tactics

Ghost stores use a variety of tactics to attract unsuspecting customers.

Price: Customers regularly assume higher prices mean higher quality. Most customers seeing a “leather” jacket for $19.74 on Temu would expect low quality. However, a silk maxi-dress from Everly Melbourne reduced from $209.95 to $82.95 – a 60% saving – seems reasonable and reflective of normal mid-season clearance pricing. That fact it’s still priced at more than $80 also implies good quality.

Cosmopolitan localism: Researchers have reported that so-called cosmopolitan localism fosters meaningful consumer relationships with brands. Consumers are more likely to trust a business based in Melbourne or Byron Bay over one based internationally.

Adding images of a physical store front creates credibility and “realness”. Customers feel confident to buy from a little business based in Melbourne, Sydney or somewhere well known to them.

Storytelling: Storytelling can influence shoppers’ emotions and affect purchasing. It helps stimulate deeper emotional connections to a brand. Ghost stores will regularly create a narrative around “going out of business” to justify price discounts and pull on heart-strings.

Layout: A professionally developed website, with high-quality images, detailed product information, online payment methods and order tracking, creates the illusion of authenticity. Researchers have found luxury brand website designs can create a strong sense of luxury. This increases a willingness to buy.

How to spot a “ghost”

When the post indicates “closing today” or “closing down sale ends tonight”, it is very easy to impulsively jump in to take advantage of the savings. However, before you click, check for these red flags:

1. The website does not provide a contact phone number or physical address for the store. There might just be an email address or web form. Simply entering the suspected store into google maps will indicate no physical location.

2. The website domain is “.com” rather than “.com.au”. This indicates the store is not an Australian-based business.

3. Is the business registered? ABN Lookup is the free public view of the Australian Business Register – a quick search will identify that the Double Bay designer isn’t registered locally.

4. Review platforms, including Trustpilot, often have negative reviews for the business, whereas the business’ website only features very positive reviews.

5. The images of products or even the owner may be AI generated. For example, Harry – Melbourne, is apparently an artisan watchmaker. However, simply right-clicking on the image reveals Harry is an AI-generated image.

A cautionary note

Online shopping is risky. You can’t physically touch or interact with the product to determine its quality. Three types of risks are common when shopping online. These are performance risk (it doesn’t work, doesn’t fit well, or the quality is poor), financial risk (losing your money on a poor-quality product), and time-loss risk (refund processing takes weeks).

As such, customers must trust the online retailer to act honestly and describe products accurately. When trust is breached, consumers will naturally become cautious even about legitimate online retailers.

As ghost stores scams increasingly populate social media feeds, unsuspecting consumers will continue to get caught out. This will leave legitimate retailers exposed to scepticism and mistrust.

Gary Mortimer receives funding from the Building Employer Confidence and Inclusion in Disability Grant, AusIndustry Entrepreneurs’ Program, National Clothing Textiles Stewardship Scheme, National Retail Association and Australian Retailers Association.

– ref. Are ‘ghost stores’ haunting your social media feed? How to spot and avoid them – https://theconversation.com/are-ghost-stores-haunting-your-social-media-feed-how-to-spot-and-avoid-them-260583

Source: The Conversation – Global Perspectives – By Shannon Bosch, Associate Professor (Law), Edith Cowan University

Israel’s Defence Minister Israel Katz has announced a controversial plan to move up to 600,000 Palestinians in Gaza into a designated “humanitarian area” on the ruins of the southern city of Rafah.

Access to the camp would be through strict security screening to ensure entrants were not Hamas operatives. Once inside, the perimeter would be sealed off by the Israeli military. Palestinians would not be allowed to leave.

Eventually the camp would house the entire 2.1 million population of Gaza.

Camp construction would begin during the proposed 60-day ceasefire being negotiated by Israel and Hamas

‘Illegal and inhumane’

The plan is illegal, inhumane and risks worsening the humanitarian crisis in Gaza.

The forced displacement and containment of any civilian population in an occupied territory is a violation of international humanitarian law.

Done on this scale would constitute a war crime and a crime against humanity under the Rome Statute.

The UN Security Council, UN General Assembly and UN Commission on Human Rights have all condemned instances of forced transfer in armed conflicts.

So too, the International Committee of the Red Cross and the Red Crescent, which have stressed the fundamental prohibition of forced displacement of a civilian population and the need for all parties to respect this prohibition.

For their own protection?

Katz is describing the camp as a “humanitarian city”. The Israeli military says Palestinians would only be contained for their own protection.

As we have seen, civilian displacement is prohibited. But there is an exception if a case can be made either for military reasons or the protection of the population.

However, this exception only exists for as long as the conditions warrant for it to exist. Anyone subject to such an evacuation must be transferred back to their homes as soon as possible.

Imperative military reasons never justify the removal of a civilian population in order to persecute it. The Guiding Principles on Internal Displacement entrenches the duty of international actors to avoid creating the conditions that might lead to the displacement of people.

Aid dilemma

Katz has indicated international organisations would be responsible for managing aid and services inside the area.

But Israel has a history of defying even orders from the International Court of Justice to allow humanitarian aid to reach the Palestinians in Gaza.

If international humanitarian agencies were called upon to service the camp, they would face a dilemma.

They would need to decide whether to cooperate in managing aid under conditions that compromise their neutrality and ethical standards, deny basic human rights and are built on violations of international law.

Aid groups would risk being complicit in a process that sets up a transit camp for Palestinians before possibly expelling them from Gaza altogether.

This “humanitarian city” would essentially become an open-air prison. Palestinians would be reliant on international aid under strict Israeli military control.

Mass expulsion?

Could the Rafah camp be a precursor to mass expulsion from Gaza and what does international law say about that?

Katz has been quoted saying Israel aims to implement “the emigration plan, which will happen” – meaning Gazans will eventually be forced to leave for other countries.

Changing the demographic composition of a territory – ethnic cleansing – achieved through the displacement of the civilian population of a territory is strictly prohibited under international law.

The idea of displacing Palestinians has long been part of Israeli strategic thinking, but this announcement signals a dangerous escalation and intention to permanently alter Gaza’s demographic landscape through displacement and containment.

Voluntary exodus?

According to Katz, Gazans would have the option of “voluntary” emigration.

Indeed, speaking at the White House this week, Prime Minister Benjamin Netanyahu said there would be no forced exodus from Gaza:

If people want to stay, they can stay, but if they want to leave, they should be able to leave.

But the scale of the humanitarian crisis in Gaza is incomprehensible.

The population has been displaced multiple times and 90% of homes in Gaza are damaged or destroyed. The healthcare, water, sanitation and hygiene systems have collapsed.

On average 100 Palestinians are killed daily as they try to access food.

These crisis circumstances negate the voluntary nature of any person’s consent to either the transfer to the Rafah camp or ultimately, the departure from Gaza.

According to Amos Goldberg, historian of the Holocaust at the Hebrew University of Jerusalem, what the defence minister laid out was clear plans for the ethnic cleansing of Gaza:

[it is] a transit camp for Palestinians before they expel them. It is neither humanitarian nor a city.

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

– ref. Israel’s Rafah camp – ‘humanitarian city’ or crime against humanity? – https://theconversation.com/israels-rafah-camp-humanitarian-city-or-crime-against-humanity-260809