believed

We believed that GLP-1 drugs were only going to change obesity. They just turned upside down how we treat addictions

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The famous GLP-1 receptor agonistsamong which some protagonists such as Ozempic stand out, have revolutionized the treatment of type 2 diabetes and of obesity. However, for some time patients and doctors had been reporting a “side effect” that was as surprising as it was hopeful, since it was seen that this treatment made people not feel like drinking alcohol or smoking. New routes. What began as a trickle of anecdotes in doctors’ offices has ended up being the target of study by different research teams who have seen here a new way of understanding the mechanism of addictions in humans. Now, a recent study published in B.M.J. backed by new clinical trialssuggests that these medications could be the key to treating addictive substance use disorders. How it looked. The heavyweight of this new research is a gigantic cohort study published in 2026, where the data of 606,434 United States veterans with type 2 diabetes. Here it was divided into two groups: those who started treatment with GLP-1 drugs such as Ozempic and those who took SGLT2 inhibitorswhich is one of the accepted treatments for advanced type 2 diabetes. The results. But the most shocking data came when analyzing patients who already had a previous history of addictions. In this group, the use of Ozempic resulted in a dramatic decrease in addiction problems requiring urgent treatment, but also saw a lower rate of hospital admissions, lower drug-related mortality, a drop in overdoses, and even a significant reduction in suicidal ideation and attempts. The essays. Although observational studies are very valuable, they also you have to go to the laboratory to see what is happening. Here, a 2025 randomized trial demonstrated that taking Ozempic dramatically reduced alcohol self-administration in a laboratory setting. Here patients reported less anxiety about having to have a drink or a cigarette, fewer days of heavy consumption, and incidentally, a decrease in the number of cigarettes they smoked per day. In the past, a study published in 2022 showed that using exenatide it was not possible to generally reduce the days of consumption of these drugs, but it was possible to see how the drug had a direct effect on some specific parts of the brain that are related to the reward centers. Because? That a drug designed for the pancreas affects our relationship with alcohol and tobacco, the truth is that it can raise many questions. The answer lies in the brain, since some reviews suggest that GLP-1 receptors not only regulate blood sugar or slow down gastric emptying. These receptors are also found in key brain areas that control the dopamine pathway, which is why, by activating them, drugs such as emaglutide or liraglutide attenuate the sensation of reward. In rodents, for example, they block the reinforcement produced by substances such as cocaine, opioids or nicotine and, basically, the drug stops “feeling good.” A paradigm shift. As can be seen every day, constant drug use over time can have devastating consequences for the lives of people and those around them. The problem is that right now there are few approved pharmacological therapies to support these addicts, and this makes any clue to have a new therapeutic door welcome. Although more research and large-scale Phase III trials are needed for regulatory agencies to officially approve their psychiatric use, GLP-1 drugs appear to be doing something that medicine has been seeking for decades: “satiating” not only physical hunger, but also the brain’s chemical hunger. Images | lilartsy In Xataka | Ozempic not only eliminates hunger, it is rewriting the supermarket ticket: goodbye to ultra-processed foods and spending on snacks

Science had always believed that only humans understand geometry. Until we noticed the crows again

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The perception of geometric regularity in shapes, a variant of elementary geometry, has long been considered an ability that only human beings had. And it is no wonder, since from quite early stages of development and across multiple cultures, our species has demonstrated a natural understanding of spatial rules. But this has changed in a species similar to crows. A radical change. Although this innate quality of humans was quite well established, science has now shown that the crows too They have geometric understanding. A cognitive milestone that rethinks what we thought we knew about animal intelligence and the evolution of pure mathematics. A myth. The scientific bases showed a notable gap between human abilities and those of the rest of the animal kingdom with regard to euclidean geometry. Previous research had already seen that primates lacked the ability to recognize geometric regularity in tests of visual perception of shapes, something fundamental, since they may be the first that come to mind when thinking about this property. And this was crucial to determining that humans have an innate ability to process geometric regularity, since the recurring inability to species like baboons After intensive training he laid these foundations. However, the researchers decided to explore these abilities in birds known for their impressive cognitive and arithmetic skills. Touch screens. To test birds’ spatial intuition, scientists from the University of Tübingen They designed an experiment based on the detection of visual anomalies. In this case, two 10- and 11-year-old male crows were trained using touch screens located inside conditioning chambers. Here the birds could observe an array that displayed six simultaneous shapes on the screen and the task was to detect an “intruder”, that is, to peck at the shape that differed in its visual parameters with respect to the other five base stimuli. The tests. For the final test, five reference quadrilaterals were used, ordered by their level of regularity: the square, the isosceles trapezoid, the rhombus, the right hinge, and a completely irregular shape. From here on, the “intrusive” figures were artificially generated moving the lower right vertex of the original figure at a fixed distance equivalent to 75% of the average distance between the vertices. Results. The most impressive thing seen was the immediacy of understanding the problem, as the crows were able to apply the concept of detecting the intruder immediately upon being exposed to the new sets of quadrilaterals. Both subjects dramatically exceeded the 16.7% chance level during their first trials, demonstrating that they understood the task without hesitating or mindlessly pecking. Furthermore, during the first 60 trials, the first crow achieved 48.3% success and the second crow 56.7%. The most impressive thing. The most revealing data from these tests was precisely that the birds showed significantly better performance with shapes that presented properties of pure Euclidean geometry, such as right angles, parallel lines or symmetry. It is crucial here to highlight that this performance advantage did not require extensive prior training, but rather the regularity effect was present from the very beginning of the testing phase. Because? Faced with the logical question of why crows achieved what other primates failed, the authors of the study recognize certain important methodological differences compared to classic experiments with baboons. In this case, they point out that the crows were subjected to a strict progress criterion during training, needing to maintain 75% correctness over five consecutive sessions. In contrast, baboons only needed to reach a criterion of 80% correct responses only once, without the need for consecutive sessions. And although this difference may make a direct and exact comparison between the species difficult, the main finding is incontestable: crows recognize geometric regularity. Images | Tyler Quiring In Xataka | Punch, the monkey clinging to a stuffed animal and a victim of bullying, has achieved the impossible: uniting the Internet under the same cause

We believed that Generation Z was returning en masse to the Church. An error in a survey is to blame for the mirage

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Stadiums vibrating with thousands of twenty-somethings raising their arms, eyes closed, singing to god. International pop stars posing in nun’s habits on the covers of their most anticipated albums. And, as a backdrop, an incessant barrage of headlines announcing the unthinkable: the massive return of the youth to the church pews. Over the past few months, the world seemed to witness a fascinating twist in the script. Generation Z, the most secular and secularized demographic cohort in history, was re-embracing Christianity. However, when you scratch the surface of this apparent spiritual awakening, what emerges is not a collective epiphany, but a trap. A gigantic demoscopic mirage. What they sold us as the great rebirth of faith is, in reality, a monumental miscalculation where the armies of artificial intelligence, the mischief of paid online surveys and the desire to believe in a revival have completely distorted the true—and much more complex—religious transformation of young people. We believed that faith was returning to the streets, but the fault was in the method. The spark that ignited the narrative of the great Christian revival jumped in the United Kingdom with the publication of the report The Quiet Revivalcommissioned by the Bible Society. Based on survey data YouGov, The study showed a spectacular figure: monthly church attendance among English and Welsh young people aged 18 to 24 had quadrupled, going from a marginal 4% in 2018 to a resounding 16% in 2024. The news spread like wildfire. Entire dioceses held conferences to “turn up the volume” on this revival, and politicians in the British Parliament used the report as proof that “Christianity is neither oppressed nor decayed,” as reported by BBC. However, demographic experts were quick to raise alarm bells. Surveys considered the “gold standard” of sociology for using random probability samples—such as the British Social Attitudes wave Labor Force Survey— showed a diametrically opposite film. According to these rigorous metersthe percentage of practicing Christians between 18 and 34 years old had not only not risen, but had fallen from 8% in 2018 to 6% in 2024. The danger of surveys opt-in If young people are not filling the churches, where do the miracle figures come from? The answer lies in the architecture of the internet itself. The report of the Bible Society was based on surveys opt-inthat is, panels where users voluntarily register in exchange for financial rewards or points. Demographer Conrad Hackett warns that this format suffers an “existential threat.” Those who respond to these surveys usually seek to maximize your profits filling out questionnaires at full speed, lying about their age to access more surveys, or using Virtual Private Networks (VPN) from other countries to get paid in hard currency. Worse still, Artificial Intelligence has come into play. The researchers have detected armies of chatbots programmed to imitate humans and fill out surveys en masse. The fake young people in these polls are so unreliable that, in similar studies carried out in the USA12% of those surveyed opt-in under 30 years old even stated that he had a license to pilot a nuclear submarine. The “great awakening” was largely an algorithmic hallucination. The situation in our land In Spain, the optical illusion is similar. Phenomena like Hakuna Group Music They managed to bring together 12,000 young people at the Vistalegre Palace, while events such as Calls They gathered 6,000 people at the Movistar Arena. Both are betting on Contemporary Worship Music (CWM), an evangelization format of Protestant and evangelical heritage, full of giant screens, pop-rock and raw emotions. But the noise of the stadiums clashes head-on with the silence of the parishes. The comparison of the official reports of the Spanish Episcopal Conference (CEE) is devastating. If we analyze the transition from the previous exercises to the most recent data, the fall of the sacraments is an undeniable constant: Baptisms: They fell from 152,426 registered in 2023 at 146,370 in 2024which represents a year-on-year decrease of 3.97%. The magnitude of the collapse is better understood if we look in the rearview mirror: in 2007the Church celebrated no less than 325,271 baptisms annually. Communions and weddings: Inertia drags the rest of the life cycle. First communions fell by almost 5% (standing at 154,677), and Catholic marriages fell by 6%, remaining at a reduced 31,462 ecclesiastical unions. Institutional collapse has other profound social consequences. Given the collapse of baptismal prayers, more than 150 Spanish town councils now offer “civil baptisms” or lay welcome ceremonies to celebrate the arrival of newborns. At the same time, the bleeding of vocations has left Spain with only 15,285 priests, whose average age is around a worrying 65 years. The problem It’s so pressing that has forced bishoprics like that of Tui-Vigo to make lay women official to lead “Celebrations of the Word” in the villages in the face of the total lack of priests. The only discordant note—the small statistical lifeline to which the Church clings—is the baptism of children over 7 years of age. This figure experienced a reboundrising from 11,835 in 2023 to 13,323 in 2024. A figure that suggests a paradigm shift in Spanish Catholicism: conversions that are much more thoughtful, personal and less conditioned by “cultural” inertia. The great gap between Spirituality and Religion To understand Generation Z in Spain, two concepts must be drastically separated: the Catholic institution and the search for the transcendent. Here comes into play what my partner in Xataka defined as: “The 29-59% paradox.” According to the Barometer on Religion and Beliefs in Spain (BREC) of 202561% of young people between 18 and 24 years old declare themselves indifferent, agnostic or atheist. Only 29% define themselves as Catholic, a figure much lower than the 46% national average. However, just because they don’t set foot in a church doesn’t mean they are pure materialists. That same report reveals that 59% of young people firmly believe in the existence of the soul and 45% in “energies.” As the sociologist Mar Griera explainswe are not facing a return to dogma, … Read more

We believed that imagination was exclusive to humans. Kanzi, the bonobo who drinks “invisible coffee”, has just proven the opposite

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For decades, cognitive science has drawn a firm red line between us and the rest of the animals that is the imagination. Although animals can use tools and even solve complex problems, the ability to disconnect from immediate reality and imagine a scenario that does not exist was considered something exclusive to humans. Until Kanzi arrived. Kanzi. A bonobo that is world famous for its mastery of lexigrams to communicate and that has now starred a published study this week in the magazine Science that could rewrite the books of evolution. And it is no wonder, since Kanzi not only knows how to order food, but also knows how to pretend to eat it when it’s not there yet, and being completely aware of what it does. The tea party. The study published earlier this month presents the strongest evidence to date for the representation of pretend objects in a great ape. And for a human Pretend you are drinking coffee by imagining you have a cup in your hand It is something very simple to do. But until now in apes it was something unthinkable. But to prove us wrong about our exclusive quality, the studio designed an experiment where they sat Kanzi down and interacted with empty objects. Specifically, they pretended to pour juice from an empty bottle into a juice or eat “grapes” that did not really exist. But the best thing is that it was not a simple imitation, but Kanzi followed the game with astonishing precision as if he really imagined it. The juice trick. The objective here was to rule out that Kanzi was simply copying movements without understanding the basic concept, and to do this the team designed three tests. The first of them began with the researcher pretending pouring juice into one of several empty glasses. Kanzi was then asked to interact with them by picking one up. In this case, in 68% of the 50 tests, Kanzi chose the glass that “contained” the imaginary juice, ignoring the other identical but “empty” glasses. Fact versus fiction. This is where the crucial point of the investigation is, since if Kanzi were confused, he would treat real and imaginary juice the same. This was not the case, since when given a choice, Kanzi preferred the real object in 78% of the cases. Something that may seem insignificant, but that shows that it maintains two simultaneous mental representations: the physical reality of the empty glass, and the fake reality where we play that the glass has juice. The same thing happened when imaginary grapes were used instead of juice, where Kanzi maintained a 69% success rate in identifying the location of the pretend food. Decoupling reality. The technical term being discussed here is decoupled secondary representation, which is the brain’s ability to hold an image of the world that contradicts direct sensory information. That is, what is being seen or heard. Until now, it was debated whether this ability emerged with modern human language, but Kanzi’s results suggest that this “spark” of imagination was already present in the common ancestor we share with bonobos and chimpanzees. between 6 and 9 million years ago. This is something that also changes our understanding of childhood play, since when a two-year-old takes a banana and pretends it is a telephone, he is exercising a cognitive muscle that evolution has been refining long before telephones or cultivated bananas existed. Exception or rule. It must be taken into account that these experiments have not been done with just any bonobo, but rather an “enculturated” ape since it has spent its life surrounded by humans and trained in the use of lexigramsmaking it have extraordinary capabilities. This gives rise to some critics, such as comparative psychologist Daniel Povinelli, who usually argue that these results could be the result of intensive training that “humanizes” the ape’s mind, rather than a natural capacity in the wild. Although it is something that the investigation tries to counteract with rigorous controls to ensure that Kanzi was not responding to human clues. Images | Will Rust In Xataka | Humans are evolving live on the Tibetan plateau. And understanding what happens there will be essential in space

We believed that a vegetarian diet guaranteed longevity. In extreme old age, the data says just the opposite

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There are many positions in nutrition about what food It is the one that will give us a better old age. One of the positions that you have surely heard is the need to reduce meat consumption to prioritize vegetables for everyone the benefits that they contribute. But now science is pointing out that what works at age 40 may not be ideal at age 90. The change of course. A published study this same year in The American Journal of Clinical Nutrition has shaken the hornet’s nest of gerontology after analyzing thousands of elderly people. The conclusion they have drawn is that among those over 80 years of age, those who consume meat are more likely to become centenarians than strict vegetarians. But before you rush to cancel your salad order, read the fine print: the key is not the meat per sebut weight, fragility and the fight against muscle loss. The data. In order to reach this conclusion, the study analyzed data from a longevity survey in the Chinese population carried out between 1998 and 2018. In total, the researchers followed 5,203 participants who were over 80 years old, classifying them based on omnivores or vegetariansincluding vegans and ovolactovegetarians. The results. Adjusting for age, gender, and baseline health, the study yielded a surprising finding: vegetarian diets were associated with a 25% lower chance of reaching age 100 compared to omnivorous diets. A correlation that was statistically significant mainly in the elderly who were already thin. Thinness. This is a really important point to present one of the nuances of this research. And the advantage of carnivores disappears in people who have a weight within the established normality. Thus, the negative association between being vegetarian and extreme longevity was observed almost exclusively in participants with a BMI lower than 18.5. That is, extreme thinness. This reinforces what is sometimes known in medicine as the “paradox of obesity in old age“. While in youth overweight is a risk factor for almost everything, in extreme old age, having energy reserves and muscle mass is life insurance. This is why the authors of the study emphasize that the consumption of foods of animal origin seems to act as a protective factor against malnutrition and frailty in these vulnerable individuals. Because. The biological explanation that suggests that meat is good in old age is based on the constant fight against degradation. One of these events is the dreaded sarcopeniawhich occurs when the natural loss of muscle mass accelerates over time. One of the objectives here, as we have repeated many times, is to maintain muscle with highly bioavailable proteins that are in meat, eggs and milk. In addition to this, the study suggests that strict vegetarians, especially thin ones, may not be ingesting enough total calories to maintain their physiology in stressful situations. And it is not crazy now, but previous studies have already pointed out that, although restricting meat reduces mortality in young people and middle adults, this effect was reversed in old age. They don’t cast a shadow. Logically, this study does not negate the many benefits of a plant-based diet for the general population. In fact, there are studies that suggest that for the vast majority of the population the priority continues to be preventing serious chronic diseases such as diabetes. However, this work suggests that nutrition must be dynamic, since the requirement in middle age is not the same as in the last years of life. Images | Simon Godfrey Kile Mickey In Xataka | Being bored is psychologically positive but it has an undesirable consequence on your body: it makes you gain weight.

We believed Amazon was already spending too much on AI. Your answer to Wall Street: spend even more

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The honeymoon between AI and Wall Street is over. Amazon knows this very well, having just received that dreaded “we have to talk” message from investors with a drop of more than 10% in its shares yesterday. It seemed that the stock markets rewarded the fact that companies They invested absurd amounts of money in AI. It is just what Amazon announced yesterday, but that strategy has had a totally negative response in the markets. what has happened. Amazon presented yesterday financial results for the last quarter of 2025. Revenue grew by 14% and net profit by 6%, modest figures that were not very popular. But above all, I did not like that Amazon announced that it estimated a capex (capital expenditure) of $200 billion in 2026 in AI. Amazing. Wall Street used to reward, now it punishes. In 2025, that capex was $131 billion, and Amazon is determined to continue betting everything on AI. Before, investors rewarded that audacity. Now they are punishing her: the shares plummeted 11% “after hours“, and it will be today when those actions start with that reflected fall. We want return on investment. That market reaction is not an isolated event. Amazon’s fall comes just hours after Microsoft or Google suffered similar falls. The market before valued the potential of AIbut now he demands return on investment more than ever and has become impatient. Big Tech had operated with a blank check, but when revenue forecasts fall short of estimates, optimism evaporates. Income grows, yes, but not that much. The real problem is the imbalance between capex and revenue growth. AWS grew a spectacular 24% in revenue, but spending is growing at an even greater rate. Google, Amazon and Microsoft are trapped in a kind of infrastructure “arms race”: the first one to stop spending loses, and that is a big problem. He who does not risk, does not gain. Amazon CEO Andy Jassy explained that “this is an extraordinarily rare opportunity to forever change the size of AWS and Amazon as a whole. (…) We are going to invest aggressively to be the leaders.” It is a speech identical to that Mark Zuckerberg said a few months ago when he said he was willing to lose hundreds of billions on AI: not investing them would be worse for Meta. But Amazon is much more than AI. There is another disturbing element in this huge bet by Amazon. The reality is that the company has many expensive fronts. From the Kuiper satellite network to compete with Starlink to the robotization of its Whole Foods logistics and other areas. When adding AI to the equation, the math doesn’t seem to work out. Optimism ends. Historically, large technology companies have taken advantage of the optimism of the market and investors to justify spending forecasts completely unrelated to their income. In 2026, with the macroeconomic situation of “we no longer like risk” —tell it to bitcoin— and the pressure for profitability, “free optimism” has disappeared. If you are going to spend like crazy, you have to raise like crazy too. Amazon is doing well, AI is not. This total commitment to AI is preventing us from seeing that the rest of Amazon’s businesses are doing very well. Online sales grew by 10% and advertising grew by a notable 23%. E-commerce, the cornerstone on which Amazon was built and operates, is funding the AI ​​party, but it is turning into a bottomless pit. Like Qatar’s GDP. According to the world bankQatar’s GDP in 2024 was $219 billion. That Amazon invests almost the same in AI data centers alone is dizzying. It is the same thing that we said yesterday about Google, which also projected a capex of 135 billion dollars by 2026. The figures are no longer dizzying: they are crazy. Beware, obsolescence. And all that investment can end up wasted, especially because there is an implicit risk in the data centers that are built: in three or five years they could become obsolete if the architecture of AI chips changes radically. It is bread for today, and hunger for tomorrow… without counting the energy factor or the water consumption. Xataka | While Silicon Valley seeks electricity, China subsidizes it: this is how it wants to win the AI ​​war

We believed that polar bears were doomed to disappear. In Norway they are getting fatter and healthier

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For decades, the polar bear has become in the indisputable symbol of the climate crisis that we are living. The equation seemed quite simple and devastating: if there is less sea ice, they will be able to hunt less and, therefore, the bears will be more malnourished and may disappear. But what we are seeing has broken this logic, at least in one specific region of the Arctic. The paradigm shift. Against all odds, the polar bears of the Savalbard Archipelago, Norwayhave presented a better body condition than 25 years agoeven though their habitat is melting at a fast pace. And this has generated many questions. In order to answer this, the study led by Jon Aars of the Norwegian Polar Institutehas provided conclusive data after decades of monitoring these animals. all this thanks to 770 polar bears that have been in the focus of the study during the years 1995 and 2019 in the Barents region. They are getting fat. After analyzing all the measurement results, it was found that an ecological paradox existed: although the ice-free season in the area has lengthened significantly, these bears are increasing their weight significantly since 2005. The big question here is… How possible? The answer. The key to this unexpected resilience seems to lie in the unique biological productivity of the Barents Sea and in the adaptation capacity of these predators. According to the study, several simultaneous factors have occurred, such as prey density. This means that the loss of ice has concentrated these bears’ prey in smaller, coastal areas, paradoxically making them more accessible at certain times. But it does not stop there, since an increase in the number of seals has also been seen, and especially in bearded seals which is a much larger prey and rich in fat. A change of diet. This is where the flexibility of the predator comes in, since Svalbard’s eyes have begun to supplement their diet with terrestrial resources, including reindeer and bird eggstaking advantage of what the land offers when the sea fails. In short, Svalbard’s bears live in a “bubble” of ecological abundance that has cushioned, for now, the physical impact of ice loss due to global warming. There is no need to celebrate it. It is easy to fall into the temptation of using this study to minimize the impact of climate change because the fact that ice is becoming less and less has not affected the species. But the authors of the study point out that this is an anomaly that occurs in this specific area of ​​the Arctic but is not a global trend. In this way, while the bears of Svalbard enjoy this temporary respite, their relatives in Hudson Bay (Canada) and other regions of the Arctic show severe signs of malnutrition and above all a decrease in the number of animals. And the difference is that not all Arctic ecosystems are as rich as the Barents Sea. A mirage. This is what the study warns that we may have in front of us, since now the bear has been able to adapt to the situation, but the sea ice continues to retreat, we do not know what will happen. What is expected is that a tipping point may be reached where not even the richness of prey or reindeer eggs will be enough to sustain the current population, starting a new ecological crisis here. Images | Hans-Jurgen Mager In Xataka | They’re not kissing, they’re scanning: the complex science behind nose-to-nose contact in the animal kingdom

North Korea believed the threat was miles from its border. A video has revealed that it is a few meters away with a huge warhead

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For years, North Korea has built your security on the idea that the most dangerous thing came from afar and could be seen coming in time. But on the peninsula, threats do not always come from the other side of the world: sometimes they develop much closer than anyone imagined. A “monster” missile. a video has revealed that South Korea has begun to operationally deploy the Hyunmoo-5its largest ballistic missile to date and one of the most peculiar in the world due to the combination of size and mission. Although it remains shrouded in secrecy and there are no publicly confirmed test launches, its input in units indicates that Seoul already considers it a real instrument of deterrence. A weapon designed for an extreme scenario on the peninsula, where the problem is not just attacking, but hitting what is buried, protected and designed to survive. The key: the head. What it places to Hyunmoo-5 In a category of its own is its warhead gigantic penetrationmuch heavier than that of usual conventional missiles. Where it is normal to carry loads of less than a ton, here we are talking about a block that can be around several tons, with an important part dedicated to dense metal and structure to pierce before detonating. The logic is simple and we have seen it before in the United States MOP: enter the ground at enormous speed, break through like a kinetic hammer and then explode once inside, attacking bunkers, command centers, warehouses and shelters designed to withstand traditional attacks. Ballistic bunker-buster. In terms of effect, it is reminiscent of bunker buster bombs launched from a planebut with a decisive difference: here it is not falling from a bomber at subsonic speed, but rather hits like a ballistic projectile at speeds close to hypersonic or directly hypersonic. This multiplies the penetration capacity by pure impact energyeven before counting the explosion. It does not make the weapon “nuclear,” because the type of destruction is different, but it does create a conventional tool with the power of entry and demolition that seeks to get closer to what a regime fears most: losing its underground shelters. Ceremony celebrating the 65th anniversary of the Armed Forces of the Republic of Korea The mystery of scope. The huge warhead penalizes the range, and that is why many estimates They place their radius of action around about 600 kilometersmore typical of a short-range missile despite the size of the set. For South Korea that is not a problem, because the priority objective is close and it’s concrete: Hardened facilities in North Korea. Still, if the load were lightened, it could reach much greater distances, even entering intermediate-range missile parameters, opening the door to broader regional readouts. Total design freedom. For decades, Seoul developed missiles under agreed limits with Washington, first very strict and then increasingly relaxeduntil those guidelines disappeared completely in 2021. That change was not symbolic: it came at the pace of North Korea’s advance in missiles and nuclear weapons, and left South Korea with room to create heavier, more capable systems with greater range options. Hyunmoo-4 had already raised the bar with a powerful charge, but Hyunmoo-5 represents the definitive jump to the idea of ​​“demolition power” as a main feature. The three-way strategy. Plus: the Hyunmoo-5 is integrated into the South Korean scheme designed to avoid or respond to a North Korean nuclear attack, with three pillars that complement each other: a preemptive strike plan on nuclear and missile capabilities if deemed inevitable, an air and missile defense to intercept launches, and massive conventional retaliation against leadership and strategic infrastructure if the North strikes first. On that board, the missile serves both to punish and to decapitate capabilities, because its specialty is attacking what the adversary hides underground to guarantee its continuity. Deterrence and escalation. They counted the TWZ analysts that the South Korean bet aims to maintain a “balance of terror” with increasingly forceful conventional means, but it also fuels an uncomfortable debate about the future. If Seoul one day decided to pursue a nuclear arsenal of its own, a missile from this family would be a natural candidateand a nuclear charge would also be much lighter than the current conventional one, which would expand range and flexibility. Meanwhile, the mere existence of Hyunmoo-5 already serves as an unmistakable message: even without crossing the nuclear threshold, South Korea wants the ability to open any relevant bunker and force Pyongyang to assume that his depth no longer guarantees security. Beyond Pyongyang. In public, South Korea frames these weapons as an answer to North Korea, but the regional background weighs more and more. Have a missile potentially adaptable in range and with a devastating payload add margin facing scenarios where the threat is not only from North Korea, but also from nearby powers such as China or Russia. The idea of ​​​​increasing their survival and employment options with future naval platforms is even contemplated, following the trend global from “arsenal ships”because in deterrence it is not enough to have the weapon: we must also guarantee that it will remain alive when the time comes to use it. Image | Lightrocket, 촬영 – 이헌구 기자 In Xataka | “It’s a level 10 Godzilla, but they only see a tiger”: South Korea’s surprising response to North Korea’s rearmament In Xataka | If the question is what has North Korea achieved in the last four years, the answer is simple: an unimaginable arsenal

We have always believed that London is very rainy and that Barcelona is not. The only problem is that it’s a lie

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Few towns exist so troubled by the vicissitudes of time like the British. During my stay in Cambridge, one of my first conversations with a native revolved around its climate. “Actually, the weather is nice in Cambridge,” he told me, “the problem is Londonwhich has a microclimate where it is always raining.” According to his testimony, London, the city with the greatest international projection, gave a bad name to the rest of the country. The British weather wasn’t so horrible. The truth is that it is: Most of the United Kingdom is cold, lives under a perennial blanket of gray clouds and enjoys greater rainfall than the rest of the continent (especially in Scotland). His story, in fact, was inversely true. Despite legend, London is one of the most dry of the United Kingdom, and a European capital with comparatively little rainfall. So why do we universally believe the opposite? First, let’s look at the data. According to Met Office figuresAccording to the British weather agency, London receives between just under 600 and almost 700 millimeters of precipitation annually (depending on the season: London is a gigantic city). The standard chosen by Wikipedia is Heathrow, east of the megalopolis, where in 2014 they fell 601.7 millimeters. Without further reference, it is a neutral number. How does it compare to the rest of England? On a map: London, the black spot… Of the low rainfall in the United Kingdom. The bluest areas are the rainiest in Britain (north east scotland plays in another league). In general, the North Sea coast is drier than the Atlantic. And as we approach the south, to the English Channel, rainfall reduces. This is where we can find London: a city in which it rains comparatively little compared to its island neighbors. My confidant was wrong: it rains more in Cambridge than in London. “Ok, ok, but the United Kingdom is a very rainy country per se. Just because it rains less in London than in other parts of the island does not mean that it rains in London.” bit“. The reasoning is logical, but also incorrect. The truth is that there are few points in continental Europe that have annual rainfall below of 600 millimeters. Unlike supposedly rainy London, Europe below the Channel does live underwater. Raining many days does not mean raining a lot Let’s think about, without going any further, Barcelona. The beautiful city of Barcelona has a reputation for being sunny. It receives millions of tourists a year thanks to its wonderful, mild and friendly climate. Well, its rainfall is very similar to that of London, and in 2014 it was slightly higher. AEMET counted 640 millimeters that yeardistributed throughout 72 days. The surprising record places Barcelona as a rainier city than London. The same thing happens with other quite amazing points of European geography. For example, Croatia. The most recent milestone of European tourism has also built a reputation for “good weather”, but the climatic reality of the Adriatic is stubborn: only in Dubrovnik, the famous citadel popularized for Game of Thrones, more than 1,000 millimeters of precipitation fall per year. 65% more than in London, of tormented fame. With some licenses, places in Europe where it rains less than in London (in yellow). The best way to understand how wrong our intuition is about London’s climate is the map above, shared a few months ago by a Reddit user: Areas in blue (almost all of central and western Europe, including Italy) receive more rainfall per year than London. Only the areas in yellow are drier, and they are few: specific points in Poland, almost the entire Iberian Peninsula (from the Ebro down, so to speak) and Sicily. Let’s think about two antagonistic places: Helsinki and Lecceon the Puglia peninsula, southern Italy. The first is one of the northernmost world capitals and spends most of its time buried under snow amid terrifying temperatures. How much does it rain there? Well, not much more than in London: about 655 millimeters annually. The second is a baroque jewel with a very sunny summer nestled in the heart of the Mediterranean. Its rainfall? Depending on the year, about 590 millimeters. Such geographical disparity does not correspond to very different rainfall. Which shouldn’t be strange, but it does manage to properly contextualize the importance of rain in London. The London chirimiri, the source of prejudice Now, if London is dry, why do we all think it’s always raining? A Basque would have an immediate answer (despite the fact that the Basque Country is very humid, especially Bilbao): chirimiri. In other words, the thin layer of rain that always grips certain cities but is actually very gentle. This is where the scarce 72 days of rain in Barcelona come into play, a city where it rains on just a few days on the calendar. If you want to look for really humid places in Europe, head to the Alps or the Atlantic ledges. In London the opposite happens: it rains more or less the same, but the water is spread over many more days (110a little less than a third of the year). Helsinki is another story: its rainy/snow days range from 180 in 2010 and the more than 200 from last year. Like many other northern European cities (Cambridge included: I barely saw the sun during the month of January I lived there), London often dawns cloudy and with a thin layer of rain that never seems to evaporate. The sun comes and goes, the clouds appear and disappear, the rain stops and starts again regularly. It doesn’t rain much, but the feeling of rain and humidity is almost permanently, inevitable. That’s why fame is so raw. Another factor is the dry reality of most of Europe’s capitals. Berlin, Vienna, Stockholm, Paris, Madrid, Warsaw or even Copenhagen They have less or only slightly more annual rainfall than London (none exceeds 700 millimeters). There are few capitals in Europe where it rains a lot (Amsterdam, … Read more

We believed that the US was facing a major energy shortage problem for AI. The data says the opposite

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To win the AI ​​race you need several things, but two are very important. The first, have the best technology and the best chips. The second, having enough energy to power those chips. The US has the first, but everything pointed to it having a major energy bottleneck. That is no longer so clear. China has plenty of energy. The China’s strategic visionwhich once again has been investing in the energy field for decades, is bearing fruit and the country has considerable room for maneuver in terms of energy supply. That is a factor that seems to tip the balance in its favor: Jensen Huang, CEO of NVIDIA, already warned that China can win the AI ​​race. According to him, China has more flexible regulation and its companies have government subsidies for the energy their data centers need. But the US has another philosophy. A deep study from the startup Epoch AI—responsible for FrontierMath AI benchmark— serves as a counterpoint to these pessimistic theories. In recent months we have seen how the US seems to have a real problem with the energy needed for AI data centers. China has not stopped increasing its energy generation capacity, but the US has not for a simple reason: until now it did not need it. Source: Epoch AI. However, Epoch AI explains that it is not that the US is not capable of creating more energy capacity: it simply has not needed it until now. While China has prepared for the future—even if that future does not come—the US has maintained a more conservative attitude: as long as there was no demand, it would not make any move. The immediate question, of course, is whether you can move it now or is it too late? And no, it doesn’t seem like it is. Forecast of necessary energy capacity for data centers in the US until 2030 according to different scenarios. In the worst of all of them (pink color), almost 80 GW of capacity will be needed. Source: Epoch AI. The demand is going to be huge. There is a reality: those ambitious plans to create more and more data centers throughout the US —with Project Stargate at the forefront—will cause data centers in the country to need between 30 and 80 GW of energy capacity in 2030. For those responsible for the study, it is perfectly possible that the US “gets its act together” – pun intended – and manages to increase its energy capacity. As? Various options. The US has room for maneuver. In order to supply all that energy that all those data centers will theoretically need, there are several clear alternatives according to the Epoch AI study: Natural gas: is relatively cheap and plants can be built quickly. There are three large companies that can cover this demand: GE Verona, Mitsubishi Heavy and Siemens. The plans of all of them point to a production of more than 200 GW in 2030. Even if they are not met, this supply (without being totally dedicated to AI) would already be an important part of the solution. Solar energy: the other big part of the solution, especially because its costs have fallen drastically and because it is very, very scalable. We have already seen how the US has the capacity to install 1,200 GW solar for IA thanks to its deserts, but at the moment Big Tech does not dare to use them. Once again, estimates point to around 200 GW of installed capacity in 2030, but even if these expectations are not met, this infrastructure will also be a clear part of the solution. Energy flexibility. The report also talks about a dynamic supply philosophy. Most of the time the US power grid is oversized for one simple reason: It is built to be able to supply power at peak peaks—like when everyone turns on the air conditioning—but most of the time there is plenty of power even to give to large AI data centers. This future infrastructure must be created with that same idea: oversized, but flexible. And there are other alternatives. The country is turning to energy solutions that it thought were buried to power data centers. Among them are the fossil plants that were theoretically going to close but that are returning to operation due to the astonishing increase in demand. There is also talk of going to military solutions and even more unusual alternatives, such as energy under volcanoes. Not to mention, of course, the nuclear power plants and the small nuclear reactors (SMR) that are already being used by some of the Big Tech for your data centers. Be careful with your electricity bill. The reality is that in the North American country data centers are growing faster than electrical infrastructure, and these facilities They are draining the country’s electricity. The situation is even causing electricity grid operators to ask be able to shut down data centers in times of high demand. And then there’s the other big side effect: AI data centers they are skyrocketing the electricity bill. When starting up an AI data center, power costs a tenth of what chips cost. Source: Epoch AI. There doesn’t seem to be a problem. Even with all those obstacles, Epoch AI’s conclusion is clear: “we doubt these challenges are significant enough to impede the scaling of AI.” In fact, they remember that what is actually expensive are the chips, not the energy, which represents a tenth of the investment in chips. The report concludes that China having an advantage is not necessarily true, and that the hypothetical US energy bottleneck “is much weaker than many people have indicated.” Image | Andrey Metelev In Xataka | Artificial intelligence has already reached nuclear power plants. And it’s going to change them forever

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