MIL Submissions Engine

Source: The Conversation – UK – By Ian Main, Professor of Seismology and Rock Physics, University of Edinburgh

The earthquake in Russia’s Kamchatka peninsula on July 30 2025 may have been one of the most severe on record, with a magnitude of 8.8. But innovations in science and technology gave governments vital time to warn and evacuate their people from the resulting tsunami.

Millions of people escaped to higher ground before the tsunami hit.

The 2004 Boxing Day 9.3 magnitude earthquake and tsunami in Sumatra, which caused approximately 230,000 deaths, some as far away as Somalia on the other side of the Indian Ocean, shows how important these warnings are.

Early warning systems were not in place for the Indian Ocean in time for the 2004 disaster. But there is now a system in place, with 27 countries participating in the group effort.

The 2004 tsunami was particularly tragic because tsunami waves travel at a steady speed in the open ocean, about as fast as a jet plane. This means they can take several hours to reach shore across an ocean, with plenty of time for warning.

An early warning system for the Pacific Ocean, based in Hawaii, was created in 1948 following a deadly tsunami two years before. On April 1 1946, the magnitude 8.6 Aleutian Islands earthquake in the northern Pacific Ocean generated a tsunami that devastated parts of Hawaii hours later, leading to 146 fatalities.

The death toll was exacerbated by the leading wave being downwards. This happens in around 50% of tsunamis, and exposes the seashore in a similar way to when the tide goes out, but exposing a larger area than normal. People sometimes investigate out of curiosity, bringing them closer to the danger.

The accuracy and response times of early tsunami warnings have significantly improved since 1948.

How tsunamis happen

To understand the work involved in protecting coastal communities, first you need to understand how tsunamis are generated.

Tsunamis are caused by displacement of mass on the sea floor after an earthquake, landslide or volcanic eruption. This provides an energy source to set off a wave in the deep sea, not just near the surface like in the ocean waves we see whipped up by the wind and storms. Most are small. The Japanese word tsunami translates somewhat innocuously as “harbour wave”.

Detailed global mapping of the sea floor, pioneered by US geologist Marie Tharpe between 1957 and 1978, helped establish the modern theory of plate tectonics. It also improved the physical models for how the tsunami will travel in the ocean.

Wave height increases as it approaches the shore, and the topography of the sea floor can result in a complicated pattern of wave interference and concentration of the energy in stream-like patterns. The establishment of sea-floor observatories led to better data for the pressure at the sea floor (related to wave height) and satellite networks now directly monitor wave height globally using radar signals from space.

One of the factors that has helped scientists predict the range of a tsunami includes the setting up of the worldwide standard station network of seismometers in 1963, which allowed better estimations of earthquake location and magnitude.

These were superseded by the digital broadband global network of seismometers in 1978, which allowed more detail on the source to be calculated quickly. This includes a better estimate of earthquake size, the source rupture area and orientation in three dimensions.

It also tells scientists about the slip, which controls the pattern of displacement on the sea floor. This data is used to forecast the time of landing, the amplitude of the wave on the shoreline, and its height in areas where the wave travels further inland.

The Pacific Ocean warning system now has 46 countries contributing data. It also uses physical and statistical models for estimating tsunami height. The models developed as scientists learnt more about earthquake sources, mapped features on the sea floor and tested model forecasts against outcomes.

Today’s technology

The early warning systems we have today are due to a decades-long commitment to global research collaboration and open data. Scientists have also improved their forecast methods. Recently they started using trained AI algorithms which could improve the timeliness and accuracy.

Pioneered by the US Geological Survey, rapid data sharing is now used routinely to estimate earthquake parameters and make them available to the public soon after the rupture stops. This can be within minutes for an initial estimate then updated over the next few hours as more data comes in.

However, the forecast wave height is inherently uncertain, variable from place to place, and may turn out to be more or less than expected. Similarly, large earthquakes are rare, making it hard to estimate how likely they are on average, and therefore to design appropriate mitigation measures.

The 2011 Tohoku earthquake and tsunami in Japan destroyed or overtopped the eight-metre high protective sea walls that had been put in place based on such hazard estimates. There were over 19,000 fatalities. As a consequence, their height has been increased to 12-15 metres in some areas.

Early warning systems also rely on rapid communication to the public, including mass alerts communicated by mobile phone, coordination by the relevant authorities across borders, clear advice, and advance evacuation plans and occasional alarm tests or drills. Although tsunami waves slow down to the speed of a car as they approach the shore, it is impossible to outrun one, so it is better to act quickly and calmly.

The effectiveness of warnings also means accepting a degree of inconvenience in false alarms where the tsunami height is less than that forecast, because this is inevitable with the uncertainties involved. For good reason, authorities issuing alerts will err on the side of caution.

To give an example, nuclear power plants on Japan’s eastern seaboard were shut down on July 30.

So far it looks like the Pacific early warning system – combined with effective levels of preparedness and action by service providers and decision makers – has worked well in reducing the number of casualties that might have happened without it.

There will always be a level of uncertainty we will have to live with. On balance, it is a small price to pay for avoiding a catastrophe.

Ian Main is professor of Seismology and Rock Physics at the University of Edinburgh. He receives funding from UK Research and Innovation Research Council, a member of the UK Office for Nuclear Regulation Expert panel on external hazards, and acts as an independent reviewer for the Energy Industry-funded SeIsmic hazard and Ground Motion Assessment research program SIGMA3.

– ref. Pacific tsunami: modern early warning systems prevent the catastrophic death tolls of the past – https://theconversation.com/pacific-tsunami-modern-early-warning-systems-prevent-the-catastrophic-death-tolls-of-the-past-262283

Source: The Conversation – UK – By Kevin Pimbblet, Professor and Director of the Centre of Excellence for Data Science, AI and Modelling, University of Hull

Vasectomy has long been regarded as a permanent, safe and effective form of contraception. Its benefits are often summarised as minimally invasive and largely risk-free.

But that may not be the full story.

In recent years, vasectomy rates in the UK have declined significantly. It’s a puzzling trend, given that the procedure’s efficacy hasn’t changed. What has arguably shifted is how men talk about it. Not in doctors’ offices, but online.

As an AI researcher working with large-scale public data, I led a 2025 study using natural language processing (NLP) – a branch of artificial intelligence that analyses patterns in human language – to examine thousands of posts from r/vasectomy and r/postvasectomypain, which are subreddits (topic-specific discussion forums) on Reddit, a social media platform where users share and comment on content in themed communities.

My goal wasn’t to weigh in on urology (I’m not that kind of doctor), but to explore the emotional tone and self-reported outcomes in digital spaces where users speak candidly and in real time.

The findings are revealing and raise important questions about informed consent, online health discourse and the growing influence of social data on healthcare communication.

Fear, regret and pain?

The most common emotional response to vasectomy, whether being considered or already undergone, is fear. To assess this, we used a tool called NRClex, a crowd-trained emotion classifier. This is an AI model trained on thousands of labelled examples to detect emotional tone in text. It found that “fear” dominated more than 70% of user-generated content.

This isn’t surprising. Men on Reddit ask questions like “How bad is the pain?” “How long does it last?” and “Will I regret this?” These are not rare concerns: they’re central to the conversation.

While overall sentiment analysis shows that most users report positive outcomes, a significant minority express deep regret and ongoing pain – sometimes lasting for years after surgery.

This pain is often described as post-vasectomy pain syndrome (PVPS), a relatively little-known condition defined by new or chronic scrotal pain that continues for more than three months after the procedure.

PVPS is poorly understood and may have multiple causes, some anatomical, some neurological and some still unclear. Though some health authorities describe it as “rare,” our Reddit data suggests it could be more common, or at least more disruptive, than currently acknowledged.

We analysed more than 11,000 Reddit posts and found that the word “pain” appeared in over 3,700 of them; roughly one-third. In many cases, the pain described persisted well beyond the expected recovery period. The word “month” appeared in nearly 900 pain-related posts, while “year” appeared in over 600.

This is noteworthy. Post-surgical pain is typically expected to resolve within days or weeks. Yet our dataset suggests that 6%–8% of Reddit users discussing vasectomy report longer-term discomfort – a rate that aligns with the upper estimates in the urological studies. More recent research, including a large-scale postoperative study, argues that the incidence is likely much lower, perhaps under 1%.

Of course, we must emphasise that these are self-reported experiences. Not all mentions of “pain” equate to a formal PVPS diagnosis. It’s also important to acknowledge that people who are dissatisfied with a medical procedure are generally more likely to post about it online – a well-recognised bias in social data. Even so, the volume, consistency and emotional intensity of these posts suggest the issue warrants closer attention from clinicians and researchers alike.

Even more strikingly, around 2% of posts mention both “pain” and “regret”, implying serious, potentially life-altering consequences for a small but significant group of people.

On r/postvasectomypain – a subreddit specifically dedicated to discussing PVPS – the tone is even more sobering. Unsurprisingly, 74% of posts describe persistent, long-term pain. Additionally, 23% mention pain during sex and 27% report changes in sensitivity.

Posts on this forum also frequently reference vasectomy reversal surgery far more often than more specialised interventions such as microsurgical denervation: a complex nerve-removal procedure used in severe cases of chronic testicular pain, typically when other treatments have failed.

From AI to andrology: an ethical crossroads

Why is a professor of AI and physics analysing pain in urology forums?

Because in today’s digital world, people increasingly turn to online platforms like Reddit for health advice, peer support and decision-making – often before speaking to a clinician. As an AI researcher, I believe we have a responsibility to examine how these discussions shape public understanding, and what they can teach us about real-world healthcare challenges.

In this case, it’s possible that the drop in vasectomy uptake is linked, at least in part, to the open and emotional sharing of negative outcomes online. These posts are not scaremongering. They’re detailed, candid and often highly specific. They represent a type of real-world evidence that clinical trials and formal studies don’t always capture.

So, what should we take from all this?

Terms like “rare”, often used in consent forms and clinical conversations, can obscure the complexity and variability of patient outcomes. Pain following vasectomy, whether mild, temporary, chronic or debilitating, appears common enough to warrant more transparent and nuanced communication.

This is not an argument against vasectomy. It remains a safe, effective, and empowering option in reproductive planning. But truly informed consent should reflect both the clinical literature and the experiences of those who undergo the procedure, especially when such experiences are now publicly available in large volumes.

In a world where online forums double as health diaries, support networks and informal research registries, we must take them seriously. Medical language matters. Terms like “rare”, “uncommon” or “low risk” carry real emotional and moral weight. They shape expectations and influence decisions.

If even a small percentage of men experience long-term pain after vasectomy, that risk should be communicated clearly, in plain English – ideally with a range of percentages drawn from published studies.

Get your news from actual experts, straight to your inbox. Sign up to our daily newsletter to receive all The Conversation UK’s latest coverage of news and research, from politics and business to the arts and sciences.

Kevin Pimbblet currently receives funding from STFC, EPSRC, The British Academy, The Royal Astronomical Society, The British Ecological Society, and The Office for Students. None are in direct relation to this work.

– ref. Vasectomy, pain and regret: what online forum Reddit reveals about men’s experiences – https://theconversation.com/vasectomy-pain-and-regret-what-online-forum-reddit-reveals-about-mens-experiences-261633

Source: The Conversation – UK – By Stephan Blum, Research associate, Institute for Prehistory and Early History and Medieval Archaeology, University of Tübingen

Somewhere between hero and hustler, family man and philanderer, king and con artist, Odysseus is one of ancient literature’s most complex figures. In the Iliad, he is the mastermind behind the Trojan horse.

In Homer’s Odyssey, he is the protagonist of a ten-year journey home – one that sees him encounter gods, monsters, temptations and profound moral dilemmas. Next year, he will be the hero of a new Christopher Nolan epic, and played by Matt Damon.

Odysseus’s journey from Troy to Ithaca in the Odyssey is anything but a straight line. It’s an epic zigzag through storms, temptations, divine grudges and existential threats. Instead of returning in weeks, he spends a decade adrift.

He is stranded by nymphs, resists sirens and watches his crew perish one by one. Every stop tests not only his wit but his very sense of self.

The Odyssey isn’t a tale of noble perseverance. It’s a study in survival. Odysseus deceives, disguises and entangles himself in morally grey romantic liaisons with a sorceress (Circe), nymph (Calypso) and princess (Nausicaa). He does so often as strategist and sometimes as willing participant.

Looking for something good? Cut through the noise with a carefully curated selection of the latest releases, live events and exhibitions, straight to your inbox every fortnight, on Fridays. Sign up here.

In Homer’s world, infidelity is a tool of survival. Odysseus survives not through moral clarity, but through his moral agility. His loyalty to his wife Penelope (reportedly played by Anne Hathaway in the new adaptation) is longitudinal, not linear. His compass is always aimed at returning to Ithaca, if not always in a straight line.

Would this flexibility pass modern ethical scrutiny? Probably not. But what made him successful wasn’t moral integrity – it was his ability to navigate each situation, even if that meant bending the rules.

While Odysseus adapts, Penelope endures with strategic resilience. For 20 years, she fends off suitors with deft delay tactics. She avoids them by weaving and unweaving a funeral shroud for her husband’s father, Laertes. It’s a defiant, slow motion resistance campaign, waged with thread and silence.

If Odysseus navigates external monsters, Penelope masters the domestic battlefield. Her fidelity in her husband’s absence is deliberate, political and astute. In a patriarchal world, her power lies in pause. Her story is one of emotional labour and strategic survival.

Narrative loops and non-linear journeys

The Odyssey is an ancient masterpiece of non-linear storytelling. It begins in the middle of the action and uses nested narratives, flashbacks and shifting voices. Odysseus tells much of his own story, reframing events from his point of view and reshaping himself in hindsight. Memory becomes montage. Truth bends to necessity. Fact and fiction bleed into one another.

Homer doesn’t just tell a story – he constructs a labyrinth. The Odyssey anticipates the fractured forms of modernist literature and cinema, where identity is unstable and time itself is malleable.

When Odysseus finally returns to Ithaca, disguised as a beggar and quietly assessing his ship’s wreckage, it’s no romantic climax. It’s a calculated risk. Penelope doesn’t swoon; she tests. Only when he passes her intimate knowledge test – he reacts with outrage when she suggests moving their bed, which he built around a living olive tree – does she relent. Their reunion is not a Hollywood embrace but a wary negotiation.

It signals restoration, yes. But also mistrust, trauma and mutual testing. Homecoming, like survival, is complicated.

Odysseus is not a flawless hero. He is a survivor who negotiates with monsters, debates with gods and crawls home disguised as a beggar. A man shaped as much by cunning as by consequence.

Would Odysseus pass a modern ethics exam? Certainly not. Would he charm the professor, flip the question and still walk out with an A? Absolutely. Some stories endure not because they are true, but because they were told by survivors.

This article features references to books that have been included for editorial reasons, and may contain links to bookshop.org. If you click on one of the links and go on to buy something from bookshop.org The Conversation UK may earn a commission.

Get your news from actual experts, straight to your inbox. Sign up to our daily newsletter to receive all The Conversation UK’s latest coverage of news and research, from politics and business to the arts and sciences.

The authors 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. Who is Odysseus, hero of Christopher Nolan’s new epic? – https://theconversation.com/who-is-odysseus-hero-of-christopher-nolans-new-epic-261781

Source: The Conversation – UK – By Eric Heinze, Professor of Law and Humanities, Queen Mary University of London

The Higher Education (Freedom of Speech) Act 2023 comes into force throughout England on August 1 2025. Designed to stop universities from censoring controversial or unpopular ideas, the law gives the Office for Students responsibility for ensuring institutions comply.

This law will mean that many universities will have to change the way they approach free speech.

When it comes to adopting campus speech policies, educational establishments have always had three choices.

One option has been to follow the law, permitting whichever messages the law already allows, while banning whichever messages the law already forbids. UK law prohibits, for example, certain core expressions of racism, anti-LGBTQ+ hatred, Islamophobia, antisemitism, or glorification of terrorism. I’ll call this the “legalist” option.

Another approach is to allow more speech than the law allows. This would, for example, permit guest lecturers to advocate white supremacy or the belief that only heterosexual relationships and behaviour are normal. I’ll call this the “libertarian” option. It treats free speech as sacrosanct.

But this option would never be adopted. Few institutions would welcome the torrent of parental complaints, media publicity, donor withdrawals, police investigations, or full-blown litigation that would follow.

A third option is to permit less speech than the law allows. This would mean, for example, banning sexist speech, which is otherwise still permitted under UK law. We can call this the “communitarian” option. It views educational institutions as more than just places for exchanging ideas: they must also promote civic values, aiming to build an empathic society.

Changing approaches

In the past, British universities could choose option three, cancelling or avoiding events featuring messages that, although legal, risk stoking campus divisions.

Some institutions have stopped controversial speakers through decisions by senior leadership. For example, in 2013 UCL’s senior administrators banned a group that advocated sex segregation. Other times, efforts to cancel events have been made by students or staff. In 2015, the University of York cancelled events for International Men’s Day after complaints from students and staff.

The effect of the Higher Education (Freedom of Speech) Act will be to shift universities from the communitarian to the legalist model. Campus members wishing to stage events will still have to comply with routine guidelines on reserving campus venues, ticketing participants, ensuring security controls, and the like. However, under the act, universities may no longer impede the communication of otherwise legal messages solely on the grounds of their provocative content.

For advocates of free speech, this act may still not go far enough since it keeps an escape hatch. Management can still cancel controversial events if the institution lacks the means to ensure adequate security, and such claims are often difficult to verify.

Yet for others, the act will go too far. Some would argue that existing law in Britain does not adequately protect vulnerable groups, and that universities should stick to the communitarian ideal, creating a refuge that the law often fails to provide.

These anxieties become ever greater in our internet era, when misinformation can proliferate. Some may fear that abandoning the communitarian ethos will turn the campus into a wild west of free speech, disproportionately affecting its most vulnerable members.

However, online communications have also proved to be powerful mobilising tools for staff and students, so online power hierarchies may work in more complex ways than meets the eye.

Note also that nothing in the act abolishes student welfare services. Individually targeted acts of bullying, threats, stalking and harassment will remain under the aegis of campus oversight as well as UK law. Staff or students exhibiting racist, sexist, homophobic, or transphobic conduct will remain as subject as they were before to disciplinary proceedings and even dismissal or expulsion.

Finally, it is worth bearing in mind that the act’s most salient ingredients are procedural, placing considerable burdens on institutions to facilitate free speech and deal transparently with accusations of censorship. Yet whether this will lead to an explosion of complaints, and whether ideas exchanged on campus will really differ so much from those we already hear today, remains to be seen.

Get your news from actual experts, straight to your inbox. Sign up to our daily newsletter to receive all The Conversation UK’s latest coverage of news and research, from politics and business to the arts and sciences.

Eric Heinze has received funding for submitting a report to the UK Commission for Countering Extremism.

– ref. England’s new free speech law comes into force – what it means for universities – https://theconversation.com/englands-new-free-speech-law-comes-into-force-what-it-means-for-universities-262080

Source: The Conversation – UK – By Richard Bale, Director of Academic Development and Research, Associate Professor, The University of Law

The Higher Education (Freedom of Speech) Act, which comes into force on August 1 2025, means universities in England now have a new duty to uphold “robust” strategies to ensure freedom of speech on campus.

To support universities in navigating the boundaries of lawful and unlawful speech, universities regulator the Office for Students appointed its first director for freedom of speech and academic freedom in 2023. Arif Ahmed, who is also a professor of philosophy at the University of Cambridge, has reportedly said that coming across views students might find offensive is part of a university education.

It’s possible, though, that feeling offended comes up against the important concept of “belonging” at university. In the context of higher education, belonging is often defined as feeling at home, included and valued. It is linked to more students staying in their courses, having enhanced wellbeing, and being able to learn well at university.

But feeling offended and feeling you belong at university don’t have to be contradictory. Some of our research has found that belonging can also mean being able to challenge the dominant culture at a university, which may exclude students who don’t fit a particular mould.

Some students explained that they proactively resist the prevalent image of the “typical” student. For example, in highly selective universities, students are often extremely competitive and industrious with a tendency to overwork. But this culture may not align with the work-life balance prioritised by some students.

This form of “positive not-belonging” often takes the form of friendship groups and communities that cultivate an alternative kind of belonging. These groups may well enable greater freedom of self-expression, without fear of being judged or feeling pressured to conform to pre-existing academic cultures.

While some students are able to carve out these collective and alternative communities for belonging, many others feel their presence and sense of belonging is conditional – especially minority ethnic students. Clearer advocacy for free speech might help these students feel more comfortable speaking up and building a stronger sense of belonging.

We must not forget that the idea of belonging carries power dynamics, and often has implications for what is perceived as up for debate – and what is not.

Existing free speech

What’s more, the views of students suggest that free speech is already part of their experience at university. In 2023, the Office for Students added a question about freedom of expression to the annual National Student Survey, which gathers final-year undergraduates’ opinions on their higher education experience. The question, added for students at English universities only, asked how “free” students felt to express their ideas, opinions and beliefs.

The results showed that 86% did feel they had this freedom. This has remained stable in the latest survey, with a slight increase to just over 88% in the 2025 results.

The Office for Students also commissioned YouGov to poll research and teaching staff at English universities about their perceptions of free speech in higher education in 2024.

Some positive results mirrored the student data. For example, 89% of academics reported that they are confident they understand what free speech means in higher education. But the polling also found that 21% did not feel free to discuss controversial topics in their teaching.

This lack of perceived freedom of expression does not only have a negative impact on staff. It is widely understood that a key purpose of higher education is to nurture students’ independent thinking and self-awareness. A key step toward this goal is not to be afraid of engaging in difficult conversations, including asking questions.

However, this does not happen automatically. Universities need to provide clear scaffolding, guidance and practical steps to protect freedom of speech. It is also important to normalise and promote conversations about topics such as cultural differences and intercultural competence, which refers to the ability to interact with people from different cultural backgrounds effectively and appropriately.

If addressed, these discussions can help to foster inclusion, and promote diversity of thought and expression.

Get your news from actual experts, straight to your inbox. Sign up to our daily newsletter to receive all The Conversation UK’s latest coverage of news and research, from politics and business to the arts and sciences.

The authors 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. English universities now have a duty to uphold freedom of speech – here’s how it might affect students’ sense of belonging – https://theconversation.com/english-universities-now-have-a-duty-to-uphold-freedom-of-speech-heres-how-it-might-affect-students-sense-of-belonging-260867