Mobile Tech & Gadgets

a building that houses treasures inspired by Goya

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they call it the ‘Palace’ and it makes sense if we take into account that it is one of the most stately buildings at the Cuatro Vientos airfield, in Madrid, and perhaps in the entire Air Force. The Officers’ Pavilion (that is its official name) is an architectural jewel built around 1916 to host the pilots and students of the first Military Aviation school in Spain. More than a century later, its rooms and offices are still full of artistic and historical treasures, but they have not been immune to the passage of time, something that Defensa wants to solve now. For this he has used his checkbook. What has happened? That the Ministry of Defense wants to rehabilitate the Historical Officers’ Pavilion (the ‘Palace’), an architectural and historical jewel located at the Cuatro Vientos air base. In fact, it is usually presented, along with the Tower, as its most emblematic property. At the beginning of 2026, Margarita Robles’ department published a tender notice in the BOE to carry out “renovation and restoration” works in the old pavilion. The total amount of the work, including VAT, amounted to about 3.49 million of euros. After passing several procedures, the final award announcement was posted on the State Contracting Platform a few days ago and details that the agreement has been closed for 3.46 million (including VAT). The execution period is 14 months, so in theory the work will not be ready until well into 2027. What will they consist of? The idea is to get the ‘Palace’ ready, which, as you remember the specialized portal Infodefenseundergoes a complicated task: modernizing the building to make it more comfortable and functional while preserving its historical and artistic identity. In practice this will translate into works to rehabilitate the façade, a redistribution and the renovation of facilities. The technicians hired by Defense will eliminate the lichens and dirt accumulated on the exterior, recover the original tones of the façade, restore the cornices, stairs and balustrades, solve water leaks and replace pieces damaged by time. To prevent the bars and other metal elements from being ruined, the specialists will clean them up. The idea is not only to rehabilitate the pavilion. Defense wants it to be more functional. Hence, the project includes some distribution changes and the installation of services such as an elevator and a dumbwaiter. The reorganization of spaces will also increase the building’s capacity to accommodate tenants and reinforce their comfort, focusing for example on thermal insulation, waterproofing and electrical installations, pipes and wiring. Is the pavilion so important? Yes. And for several reasons. One of them is its historical dimension. The Officers’ Pavilion was built between 1914 and 1918at a key historical moment in which, remember from Defensethe old Cuatro Vientos airfield became “the cradle of Hispanic aviation.” As it grew, it became necessary to build a specific building to house the pilots and flight school students. The building began to be built around 1915 and from very early on it played a fundamental role. In fact its nickname, ‘Palace’, is probably explained because it welcomed the infant Don Alfonso of Orleansaviator from the school’s first class of pilots. What role did he play? In an article published for the centenary of the pavilion, the Spanish Defense Magazine He recalled in 2016 that the ‘Palace’ was in a way the “center of teaching, debate, analysis and planning of the ‘Great Flights’”as the first great feats of Spanish aviation are known, such as the ‘Plus Ultra’from 1926, during which the South Atlantic was crossed. Prototypes such as the one with the autogyro and aeronautical workshops and an aerodynamics laboratory were installed. Is it the only reason to reform it? The truth is that no. Another reason why Defense probably wants to take care of the ‘Palace’ is its heritage and architectural value. Beyond its age (it was built between 1915 and 1918), the pavilion was designed from the first moment as a noble building, equipped with coffered ceilings, tiles and stained glass with considerable artistic value. A residence worthy of an infant of the Orleáns-Borbón house. Infodefense stands out specifically the wooden frieze and ceiling of the Noble Hall, the plasterwork of the Officers’ Hall and Weapons Room or the marquetry of the dining room, in which the architects wanted to make a nod to the history of Spain: the pieces are inspired by the engraving ‘Modo de Volar’ by Goya. Also notable is the leaded stained glass window that preserves the original shield and was restored in the 90s. “To the right of the main entrance, is the ‘chiefs’ dining room’, today called ‘Los Pajaritos’. The room is surrounded by a wooden frieze, in the upper part of which appear, reflecting Goya’s engraving ‘Modo de Volar’, different birds in the attitude of flight”, details the Air Force. Images | Ministry of Defense of Spain and Air Force (Facebook) In Xataka | Spain in the 1950s, seen from the air: the pioneering photographs of the US army

Chinese AI models boasted of being good, pretty and cheap. There are only two of those three things

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It is not as well known as its rivals, but Zhipu AI (z.ai) has become one of the most promising Chinese AI startups. It is responsible for the family of open GLM models that have always offered a solvent and, above all, very cheap alternative. That, unfortunately, is no longer so true, but we are witnessing a change in strategy both between it and its competitors in the Asian giant. Chinese AI models are no longer such a bargain. GLM-5.1 is better… Z.ai announced yesterday the launch of its shiny new AI model, GLM-5.1. I did it with my chest out because we are facing a promising evolution of this LLM (744B parameters, 40B assets with Mixture of Experts architecture) that certainly surpasses its predecessors but that in some metrics even seems to be above GPT-5.4, Claude Opus 4.6 or Gemini 3.1. Agentic tasks and those that require autonomy for long periods work better than ever, but if you want to benefit from these improvements, you have to check out: the price of the model is now at least 8% more expensive than previous versions. …but also more expensive. According to prices managed by OpenRouter, the well-known platform that serves as a “distributor” of multiple free and commercial models, the prices of the new Z.ai model have risen significantly. Thus, GLM-5.1 costs between 8 and 17% more than GLM-5 Turbo, also recently launched. It is the second time that the Chinese company has raised prices for its users in 2026, and that is a worrying sign. The excuse, of course, is the same as always. We are in high demand. When Z.ai launched GLM-5 at the beginning of February, it took the opportunity to raise the prices of its plans for programmers between 30 and 60%while the API rose between 67% and 100% (doubling). Its shares on the stock market perked up significantly after the launch and the price increase – logical, investors saw that income was probably going to increase thanks to these increases – but the company indicated that demand was very high and that its models had to reflect that circumstance. From the three B’s to just two. The Chinese open models had been demonstrating remarkable quality and a fantastic price/performance ratio for months. They were good, pretty and cheap, but Zhipu AI has just been the latest to end up raising prices. Most of its competitors have been doing it too: Moonshot AI (Kimi), MiniMax and StepFun did it already in 2025, but Alibaba, ByteDance, Tencent and Baidu have also adopted increasingly ambitious pricing strategies. as indicated on TrendForce. OpenClaw as a trigger. Much of the blame for this great demand lies with AI agents like OpenClaw, which has become viral but has a problem: it consumes tokens at an extraordinary rate. A conversation with ChatGPT, Claude or Gemini has a cost, but the use of tokens in “chat mode” is much lower than that carried out by AI agents, who do not stop “thinking” and analyzing different possibilities and chaining processes to resolve our requests. The Chinese models have become a good alternative if one wants to save because using Claude Opus 4.6 was very expensive —and now, prohibited—, but these models are slowly becoming high-end AI models. At least, for price. I already know how this story ends. What we are experiencing with AI models we already saw with smartphones. Chinese manufacturers broke the market with bargain phones that offered high-end features for mid-range or low-range prices, but then they evolved and over the years most manufacturers have ended up focusing on the super-high ranges and at most have launched “cheap” sub-brands. Xiaomi has done it with Redmi and POCO, for example, and now we are seeing something similar with Chinese AI startups, which gained popularity with good, pretty and cheap models, but are now beginning to transition to that new batch of capable but no longer so affordable models. First they catch you, then they squeeze you. What we are seeing with the Chinese AI models we were also seeing with the models of companies like OpenAI or Anthropic. Both they and their competitors release increasingly better but also increasingly more expensive models, and that means that those tokens that these companies sell us are becoming more and more precious: the quotas for the ChatGPT Plus or Claude Pro plans, for example, seem to be running out. faster than beforeand the users they take time complaining about it. On Reddit They have a “megathread” dedicated precisely to that, but here we have bad news: this doesn’t look like it will go down, but rather more. In Xataka | Anthropic has shut down OpenClaw for a reason: it’s building the “walled garden” that Nintendo perfected

The Xiaomi 15T Pro has reached its historical minimum price and not in its most basic configuration

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Although finding the Xiaomi mobile with the best quality-price ratio It depends on the offers of the moment, this Xiaomi 15T Pro It is a good option now for this PcComponentes bargain. Above all, because it is not in its minimum configuration, but the 512 GB version, which you can get at a minimum price: 649 euros. XIAOMI 15T Pro – 12+512GB Smartphone The price could vary. We earn commission from these links A high-end mobile now at an unbeatable price This Xiaomi 15T Pro It is a mobile with a good 6.83-inch screen with 1.5K resolutionmaking it ideal for watching series and movies. Its refresh rate is 144 Hz, making it perfect for video games and fluidity when navigating through menus. This screen is compatible with HDR10+ and Dolby Vision and your brain is the processor MediaTek Dimensity 9400+a fairly powerful processor. As for its battery, it is capable of supporting fast charging at 90W, so you will have your phone at 100% in less time than you think. The operating system under which it works is HyperOS 3 and its photographic system is another of its assets, since it is signed by Leica. Ride one 50 MP main cameraaccompanied by a telephoto (also 50 MP) and 12 MP wide angle. ⚡ IN SUMMARY: offer for the xiaomi 15T Pro smartphone today ✅ THE BEST Gross power: Thanks to the 3nm Dimensity 9400+, it is not only a beast in gaming but also solves the temperature problems of previous generations thanks to the 3D IceLoop cooling system. 144Hz 6.83-inch display: It has grown slightly compared to the previous version. Its 3,200 nits of brightness and 1.5K resolution make it one of the best outdoor displays in its price range. ❌ THE WORST Risk-free design… Although it is refined and robust, it follows a very continuous aesthetic line that may be somewhat boring if you are looking for something visually groundbreaking. 💡 BUY IT IF… You are going to use the mobile for gaming, thanks to its 144 Hz refresh rate and sustained performance from the Dimensity 9400+. ⛔ DON’T BUY IT IF… You are an Android purist, as HyperOS may seem like a very intrusive and custom layer to you. If you prefer something clean Pixel or Nothing style, this is not your phone. Some accessories that may interest you for this mobile GUAGUA Case for Xiaomi 15T Pro with Stand The price could vary. We earn commission from these links XIAOMI Redmi Buds 8 Pro, True Wireless Bluetooth, Active Noise Cancellation up to 55 dB The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | Xiaomi In Xataka | The best mobile phones, we have tested them and here are their analyzes In Xataka | Best wireless headphones. Which one to buy and 21 models from 15 euros to 470 euros

A seven-dimensional black hole model proves that Stephen Hawking was right, to say the least.

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For a long time it was thought that black holes could only grow, since nothing escapes from them. Later, Stephen Hawking dismantled this theory, pointing out that radiation can come out of its interior and that, in fact, with this process the black hole it is fading away little by little. This hypothesis generated a new paradox; since, according to quantum mechanics, information cannot be created or destroyed in a quantum system. If the information cannot be destroyed, when the black hole disappears, where does all the information it stored go? This question has been a mystery until a team of scientists from the Slovak Academy of Sciences It occurred to him to do simulations in a 7-dimensional system. A reminder about black holes. a black hole It is an astronomical object so massive that its gravitational pull does not allow anything to escape from it. Not even the light. At a certain distance from the black hole is the event horizon, which is that point of no return from which everything is attracted towards its interior. Hawking radiation. In the 1970s, Stephen Hawking launched a hypothesis which destroyed the idea that nothing can escape from a black hole. According to him, if we take quantum physics into account, there is something that can do it. Heisenberg’s uncertainty principle states that a vacuum is not empty as such. Particle-antiparticle pairs continually form and appear and disappear. If this occurs in the vicinity of the event horizon, it could be that one of these particles is attracted towards the black hole, while another manages to escape from it, being slightly beyond the point of no return. That exhaust extracts energy from the black hole. This is what was called Hawking radiation. Disappearing black holes. We have all heard the famous formula from Einstein’s theory of relativity: E = mc². Since c is a constant, if there is energy, there must also be mass and, therefore, if energy is lost, for the constant to be maintained, mass must also be lost. That means that every time a black hole loses energy it is also losing mass. They are very massive objects, they would take a long time to turn off, but they finally do. The paradox arrives. Initially, many colleagues saw Hawking’s hypothesis as nonsense. However, today it is much more accepted. However, it is undeniable that it poses problems, such as the black hole information paradox. Where does the information go? Twisting space-time. The solution to the mystery has been possible by putting aside the theory of general relativity and analyze the problem with a somewhat more complex one: the Einstein-Cartan theory. The first points out that mass and energy can curve space-time. On the other hand, the second points out that it can also twist. For scales that are not excessively small there is no difference. However, when moving to tiny scales and therefore very high densities, This torsion plays an important role. A 7D model. Quantum physics models are often made in 4 dimensions: the three we all know and time. However, the authors of the recently published study took three more into account, so that the effects of the Einstein-Cartan torsion could be analyzed. Thus, they saw that when the matter of a black hole collapses its density increases greatly and, therefore, the twisting of space-time is detected. This gives rise to a repulsive effect, which counteracts the gravitational attraction that would normally take place in the engrossing hole. As a result, the evaporation of the black hole stops, which remains in a stable state, generating a remnant with a mass of 9×10⁻⁴¹ kg. A remnant with a lot of information. This tiny remnant is capable of storing all the information of the matter that the black hole contained. Specifically, these scientists’ models suggest that the remnant of a black hole the size of the Sun could store up to 1,515 × 10⁷⁷ qubits of information. Therefore, Hawking’s hypotheses are still valid and there is not even a paradox that dismantles them. At least this is not the lost information. Image | ESO (Wikimedia Commons) | ASA/Paul Alers (Wikimedia Commons) In Xataka | In 2009 Stephen Hawking hosted “the party of the century.” No one came precisely because Stephen Hawking organized it

To locate the pilot lost in Iran, the US used two tools. One was given by Boeing, the other is science fiction

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The call quantum magnetometry has promised to measure magnetic fields so weak that they border on detectability, using microscopic defects in synthetic diamonds capable of registering imperceptible variations. In the laboratory, these techniques already allow biological signals to be observed at surprising scales, but always in environments controlled and at very short distances. Outside of these ideal conditions, between noise, interference and distance, the great unknown remains the same: how far that sensitivity really goes. The United States claims to have the answer, and it is very difficult to believe. Two tools to find a missing person. Washington has counted that the operation to rescue to the airman shot down in Iran was based on a very specific combination of technologies that, together, made the difference between finding a man or losing him in an immense terrain. On the one hand, the pilot had a standard and well-known system available as Boeing’s CSELa communications device that allows send encrypted signals via satellite and guide rescue teams with relative precision. This type of tool, widely distributed in the armed forces, was key to confirming that he was still alive and limiting his initial position in an extremely hostile environment. The other tool that borders on the implausible. The second element of the rescue is the one that has generated the most interest (and doubts), since different information supported by a exclusive to the New York Post point to the use of a system called “Ghost Murmur” capable of detecting the human heartbeat at long distance using quantum magnetometry combined with artificial intelligence. On paper, the idea is extraordinary in a movie, but apparently also in the real world: identify the electromagnetic signature of a living body in the middle of the desert, isolate it from noise and convert it into an operational coordinate. It happens that the unknowns also begin here, because these types of signals are extremely weak and, until now, they could only be measured at a very short distance in controlled environments, which raises serious doubts about its real range in combat conditions. Between the plausible and the inflated. The context of the rescue itself suggests that, rather than replacing the classic system, this technology would have acted as a complement under very specific conditions: an environment with low electromagnetic interference, few human signatures or signals, and a target forced to briefly expose itself to activate its beacon. That is, not so much an omniscient tool as a very limited capacityuseful in ideal scenarios but difficult to extrapolate to more complex situations. The narrative of “finding someone by their heartbeat from miles away” fits well as a concept or in a Nolan film, but until now it clashed with known physical limitations. The “Venezuelan” precedent. Many skeptical analysts have gone for the jugular of these claims, speaking reverse engineering of another futuristic weapon to achieve the “Ghost Murmur”. Because skepticism does not arise in a vacuum, but in a recent context where technologies wrapped in an almost fantastic halo have already been presented, such as the supposed “discombobulator” mentioned by Trump in the operation against Nicolás Maduro. In that case, experts pointed out that it was probably a mix of capabilities real (electronic warfare, acoustic weapons or directed energy systems) presented as a single almost magical device. The pattern is recognizable: existing technologies reinterpreted or exaggerated in the public narrative. The war is also fought in the technological story. If you also want, as a whole, the rescue reveals something deeper than a simple military operation: the growing importance of technological narrative in modern conflicts. The United States used a tangible tooleffective and proven to locate the pilot, no more no less than a GPSbut he also hinted at another capacity that, real or not in the terms described, projects a image of superiority almost total. And possibly there, between what is technically possible and what is communicated, there is a space where perception matters as much as reality, and where sometimes the border between advanced technology and science fiction becomes deliberately blurred. The rescue movie, of course, has already been practically written. Image | US Air Force In Xataka | The rescue of a fallen US pilot in Iran seems like a science fiction story. And there are elements to think that it is In Xataka | Iran has found a hole in Israel’s shield: turning a missile into an explosive “storm” in full descent

how to enter and present your 2026 declaration online with the Tax Agency website

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Let’s tell you how to access your 2025 Income draftwhich is the declaration that you have to present in 2026 to account for the last fiscal year. The Income Tax calendar has reached its key day, and starting today, April 8, 2026, you can now access your draft and file your return with it. But before you jump into doing it, remember that It is very important to check that everything is fine. Basically because the Tax Agency makes the draft with all the data collected about you, but there may be errors, and if there are errors and the declaration is erroneous you are going to pay the fine although the error in collecting data was made by the Treasury. It is your responsibility as a citizen to review it. You should also remember some of the things that you need to prepare in advance to make the declaration. To identify yourself on the Treasury website, you will need to have a digital certificatelike the FNMT certificateor alternatively be registered in the Cl@ve system. It is also convenient view and review your tax databecause they are the ones that the Treasury then uses in the draft. Enter your draft income tax online To enter your draft Income Tax Return you must enter the Tax Agency website. For that, you have to enter the page agencytributaria.es/AEAT.internet/Renta.shtmland click on the option Draft/declaration processing service (Direct Income and WEB Income) that will appear at the top in the options of the section Featured Managements. Before going to the draft, you will first go to the page where you should identify yourself as a citizenso that the Treasury can use your personal draft. To identify yourself you can use your digital certificateincluding the FNMT certificate and that of DNIethe PIN code or Mobile Key, or the reference number. When you log in, you will go to a screen where you have to choose that you are going to act on your own behalf. Come on, you’re going to do your draft. You can also act as a representative of another person, but this is more for advice, so you must choose the option of Act on your own behalf and click on Confirm. Now you will finally enter the index of the Income Services 2025. On this page, click on the option Draft/declaration processing service (Direct Income and WEB Income)which is where you will access the draft. This will take you to the draft declaration. On the first page you have to confirm your Identification Datawhich are personal and those of your spouse if you have one, or your children. Here, You can choose the option to make an individual declaration with the option you have at the top in the box Declarant. When everything is filled in, you will have to go down to the bottom and click on Accept. Then, you will go to another page where you can incorporate your economic activities such as salaries and mortgage loans for the habitual residence deduction. It will automatically show you registered data to decide whether to add it or not, and if you do so you will have to enter additional data. And then you will go to your declaration page, where now you have to review all the data to make sure all fields are correct, and add anything that is missing. On this page, the field Declaration result can be positive or negative. This is what each thing means: If the result is negative: It means that you will be charged, that the Tax Agency will have to pay you the amount that appears. If the result is positive: It means that you have to pay, and you will have to pay the Tax Agency the amount that appears. When you have reviewed all this data and consider that everything is fine, you will have to press the button Submit declaration. This is the button to finish the process and submit your tax return online. However, don’t forget review the most important boxes of the declaration. And also remember that it is important to take your time, and that you will have a stop button. Keep to save your changes and continue reviewing the draft later. Take all the time you need. In Xataka Basics | Income Guide 2025: calendar, previous steps and how to prepare for the 2026 declaration

how the hell to census 1.4 billion people

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It doesn’t matter what you do, what sector you work in or the number of people you are in charge of. Your tasks will hardly be as complicated as the one the Government of India has just faced: censusing 1.4 billion people, more than triple of the population of the European Union. The mission is so titanic that it will require more than three million of technicians, a whole legion of censors who will visit around 640,000 villages and almost 10,000 towns and cities. The task is difficult, but it is key if New Delhi wants an updated ‘photo’ of the country that allows it to make decisions adapted to its economy and population. One census to rule them all. India is not just any country. In 2023 the UN Population Fund (UNFPA) estimated which had become the most populous nation on the planet, surpassing China. According to their calculations, that same year the (new) Asian giant far exceeded the 1.4 billion of inhabitants, almost three million more than the country led by Xi Jinping. Now New Delhi has proposed to go further and know in detail how that population is distributed. multiply by 3.1 the EU-wide registry. As? Creating him who, according to some analystswill be the most ambitious census of its kind. One figure: three million. Census of 1.4 billion people is imposing, but that is only one of the many figures that give an idea of ​​how enormous the task will be. There are others just as impressive. For example, a few days ago The New York Times needed that shaping the census will require an investment of around 1.2 billion dollars and mobilizing more than three million technicians. The vast majority will be civil servants and teachers. Such a legion of censors will have to travel from top to bottom of the most populous country in the world. To be more precise, it will be dedicated to covering 36 states and territories, 7,000 subdistricts, more than 9,700 cities and 640,000 villages And how will they do it? The million dollar question. Or rather, the 1.4 billion. It is known that from the outset the Government wants to divide the work into two phases. The first one started this month and will last until September, six months during which the technicians will dedicate themselves to preparing a complete list of homes and inhabitants. Its mission will be to record the size and characteristics of the households and whether, for example, they have access to services such as internet or sanitation. The second phase will start in 2027 and will focus on individuals. It will then be when the censors collect data from each person, documenting names, sexes, ages, marital status or educational and salary level, religion or other characteristics, such as whether they have migrated or have some degree of disability. The work is enormous, but the officials will have a new tool: an app that will make their work doubly easier. Not only will it save them from handling printed paper forms. Citizens themselves will be able to use it to provide their data. Then the censors will only have to check them. Is it something new? No. This is not (far from it) the first census carried out by the Indian authorities. The country has updated its records every 10 years since 1881, when it was still under British rule. I had previously done a try with a questionnaire that would allow you to collect basic indicators. Since then the census has been varying, adding and losing items depending on the concerns of each moment. For example, in 1901 the technicians added a section that sought to clarify what English proficiency existed in the country. A pending task. That tradition sustained since 1881 broke in 2021when COVID prevented updating the 2011 registry. Since then the task has been postponed for different reasons until reaching April 2026. Just because technicians have already started collecting data does not mean that we will know their conclusions soon. CNN precise that the final count will not be made public until next year. Only in the first phase, people who participate in the census must answer just over 30 questions. Why is it important? That the Indian Government is willing to deploy resources, hours of work and millions of dollars to improve its census is no coincidence. The State needs an updated ‘photo’ for such basic issues as designing policies and offering specific services and programs aimed at employment or rural areas. Right now the most detailed image you have is from 15 years agowhich has forced the authorities to use sampling. “This census is crucial: it is the definitive snapshot of India, capturing everything from caste and religion to jobs, education and services. It offers the most complete picture of how people live,” explains to the BBC Ashwini Deshpande, from Ashoka University. His comment slips a couple of keys: the census will not only update the rural, urban and peri-urban map, it will also help decide what parliamentary representation each territory should have and will give an idea of ​​the caste system, one of the points most controversial of the study. Image | Neelakshi Singh (Unsplash) In Xataka | China knows that its population is going to collapse but it already has a long-term plan to solve it. Of course, thanks to AI

There are people obsessed with magnesium as a supplement when the best way is to put it directly into your diet

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We live in the era of biological optimization, where The strange thing without a doubt is not taking dietary supplements from the supermarket such as magnesium, collagen, calcium, various vitamins… Magnesium in particular is sold as an almost magical way of sleep betterreduce anxiety and recover muscle. But the truth is that we are forgetting the most important thing: We have all this in food. The reminder. With so many food supplements (which often do not come cheap), sometimes we forget that we have these nutrients in the supermarket in different presentations. This is something in which Doctor Federica AmatiChief Nutritionist at ZOE Science & Nutrition, has put its finger on the sore spot of the supplement industry: For the vast majority of the population, there are plenty of pills and no food. Why magnesium matters. There is an obsession with taking this mineral, and the reality is that it makes sense because its functions are critical for our body to function correctly. Its fundamental role in many metabolic reactions of the body makes it essential for human survival, since without magnesium we would literally be extinct. And it is no wonder, because beyond being used to prevent cramps, it has important functions in energy production, DNA synthesis, metabolic control such as glucose levels, and also structural function by allowing bone to develop. Given its importance, the consumer logic seems simple: “If it’s so important, the more you take, the better”. But this is where science has to put the brakes on because a large amount does not always equal better performance. The best foods. One of the positions that we can have on the table right now is that magnesium supplements (and even others) are not necessary, unless it is known that there is a deficit. All this because it has a big problem: they are isolated. The problem with supplements is that they are isolated. NIH Office of Dietary Supplements (ODS) emphasizes that the food matrix It is irreplaceable. When you get magnesium from an almond or spinach, you’re not just ingesting the mineral, you’re getting fiber, phytochemicals, and other micronutrients that work together and that no pill can fully replicate. The daily doses. The official recommendations today indicate that the minimum levels of magnesium They are not unattainablesince for adult men between 400 and 420 mg per day are needed, while for women between 310 to 320 mg per day is sufficient. Low figures mean that they cannot be easily achieved with food by adjusting the shopping list without going to the pharmacy. Where can it be found. If the goal is to reach 400 mg daily, the strategy is not to look for supplemented foods, but to go back to the basics. In this case, science points because the food where we have the greatest amount of magnesium are seeds and nuts, where we find almonds, cashews and especially pumpkin and chia seeds. But in addition, it should also be noted that green leafy vegetables such as spinach or chard have chlorophyll in their composition, which also acts as a highly coveted magnesium reserve. All this without forgetting legumes and whole grains. Who needs supplements. Logically, they have a site, but it is by no means a universal recommendation for everyone who may have their requirements met with the diet. According to the ODS, there are different groups of people who may require this supplementation (under medical supervision). These are the following: Gastrointestinal disease such as celiac disease where nutrient absorption is compromised. Type 2 diabetes, since its pathophysiology causes a decrease in magnesium. Chronic alcohol consumption. Elderly people where absorption is naturally decreased. In these specific cases, the evidence indicates that supplementation can help improve parameters such as sleep quality or anxiety, but because they have an absorption problem. A previous visit to the doctor. Before starting supplementation of any type, it is best to go to your primary care doctor to verify in a blood test the nutritional deficiencies that you want to counteract. And our body does not store these minerals, meaning that anything taken in excess has no effect whatsoever. In Xataka | Magnesium, creatine, collagen: we are taking supplements above what science believes is useful In Xataka | Which dietary supplements really work and which don’t, in a great graph A version of this article was published in January 2026.

Claude Mythos is an AI model so powerful it’s scary. So Anthropic has decided that you won’t be able to use it

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Claude Mythos Preview it’s already here and it’s so good it’s scary. Literally. Anthropic has just introduced it to the public, but it has been done so cautiously that we won’t even be able to test it and it will only be available for certain technology partners. That’s frustrating and disturbing at the same time, but also reasonable. So powerful that it scares. On February 24, 2026, Anthropic engineers were able to test their new artificial intelligence model for the first time, which they called Claude Mythos Preview. As soon as they did they realized one thing: “demonstrated a dramatic leap in its cyber capabilities over previous models, including the ability to autonomously discover and exploit vulnerabilities zero-day in the main operating systems and web browsers on the market. Threat to global cybersecurity. This finding made it clear to Anthropic officials that although this capability makes it very valuable for defensive purposes, it also poses clear risks if the model were offered globally. Thus, a cybercriminal could take advantage of it to find vulnerabilities in all types of systems and exploit them. A few hours ago the company developed this analysis of Mythos as a threat to cybersecurity in a post on his blogand for example highlighted how Mythos found a vulnerability (now corrected) that had been present in OpenBSD for 27 years, an operating system precisely recognized for its very strong security. There were more examples, and all of them made the conclusion clear: Mythos is too powerful for ordinary mortals to use. Superior in all benchmarks, and in some cases such as USAMO (mathematics), the jump is simply incredible. Source: Anthropic. The best in history according to benchmarks. Anthropic has published a very in-depth report about this model with its “system card”. Among the data present is, for example, its performance in benchmarks, where it has swept GPT 5.4, Gemini 3.1 Pro and also Claude Ous 4.6, which until now was the best model in the world in almost all performance tests. Although in some cases the jump is not spectacular, in others such as USAMO —mathematical problem solving—Mythos practically achieves perfection. He barely hallucinates… That system card also talks in detail about how Claude Mythos Preview has a drastically lower hallucination rate than Claude Opus 4.6 and earlier models. He is also capable of saying “I don’t know” if he does not have enough information to answer, something that reduces hallucinations due to overconfidence. …but when it does, be careful. The paper warns of a new phenomenon: when the model fails in some complex tasks, the “hallucinations” are not obvious errors, but rather extremely subtle and well-argued technical failures. This is dangerous because the answer seems totally correct to experts, requiring very deep verification. Glasswing Project. That power and capacity has meant that the model will only be available through a “defensive” program that they have called Glasswing Project and which will be exclusive to some Anthropic technology partners. Specifically AWS, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorganChase, the Linux Foundation, Microsoft, NVIDIA and Palo Alto Networks. All of them will have the privilege (and responsibility) of having access to Claude Mythos Preview to identify vulnerabilities and exploits and correct them before bad actors can do so. Mythos Preview “it’s just the beginning”. Although this model is the most capable that has been seen so far, at least according to the benchmarks and data presented by Anthropic, the company assures that “we see no reason to think that Mythos Preview is the point at which the cybersecurity capabilities of language models reach their peak.” They assure that they expect the models to continue improving in the coming months and years, although this new model is certainly on another level. In Xataka | OpenAI and Anthropic have proposed the impossible: lose $85 billion in one year and survive

While most citizens pay the electricity bill, electricity pays Amancio Ortega: 49.2 million in dividends

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There are people who pay electricity bill every monthand people who are paid by “the light”. Amancio Ortega belongs, without a doubt, to the second group. The founder of Inditex will earn 49.2 million euros this year in dividends from three energy companies in which it has participation: Enagás, Redeia and the Portuguese REN (National Energy Networks). Despite being a considerable sum in terms of dividends, those 50 million euros seem like pocket change when compared to the amounts of its large business, 3,234 million euros that will receive from Inditex in 2026 for 59% of the shares it controls through its investment instruments Pontegadea and Partler 2006. Redeia: the largest energy check. Ortega’s most profitable participation, in terms of dividends, within the energy sector It is the one that the millionaire maintains in Redeia, the company he manages the Spanish electrical network. Through his company Pontegadea Inversiones, the businessman settled in La Coruñaacquired 5% of the company’s capital in July 2021 for approximately 456 million euros. With this position, it is the second largest shareholder in the company, only behind the State, which owns 20% through SEPI. The Board of Directors of Redeia will propose to the General Meeting the distribution of a dividend of 0.80 euros per share charged to the 2025 results, of which 0.20 euros They were already paid in January and another 0.60 euros are planned as a complementary dividend in July. Taking into account Ortega’s percentage of participation, that means about 21.6 million euros for Pontegadea, the same amount as the previous year. Furthermore, the Redeia’s new strategic plan For the period 2026-2029, it foresees a dividend that the company describes as “growing and sustainable”, to reach 0.87 euros per share in 2029, which represents an annual increase of 2%. In this way, Pontegadea, as representative of Ortegawould receive about 91 million euros over the next four years. The Portuguese bet: REN. Ortega’s other great energy pillar in 2025 has been the Portuguese REN, the Portuguese equivalent of Redeia. Far from settling for its initial position, Pontegadea expanded its participation in REN last yearpurchasing an additional 1.7% until reaching 13.7% of the capital. With that move, Ortega consolidated his role as second largest shareholder of the Portuguese company, only behind the Chinese electricity company State Grid Corporation of China, which controls 25% of the shares. By 2025, the REN Board of Directors proposed distribute among its shareholders a total of 106,750,601.92 euros, which corresponds to a gross dividend of 0.160 euros per share. On this occasion, the payment has been divided into two: a dividend of 0.064 euros per share has already been distributed as an advance at the end of November 2025, while a second payment of 0.096 euros per share is expected after its approval at the general meeting scheduled for April 15, 2026. The part corresponding to Pontegadea for its 13.7% of the capital represents about 14.6 million euros in total, which They add to those of its Spanish counterpart. A commitment to energy diversification: Enagás. The third leg of the energy business of the founder of Inditex is Enagás, the company that manages the natural gas network in Spain. Pontegadea acquired 5% of its capital at the end of 2019, paying 281.63 million euros for that package. Today that participation is valued below the purchase price, but the difference has been compensated through the dividends collected over the years. The gas company maintains his remuneration one euro per share for this year, maintaining the containment plan that began in 2024 and will last until 2027. The dividend will be paid in two payments: one of 0.4 euros that was already paid in December 2025 and another of 0.6 euros scheduled for July 2, 2026, with a total distribution of 157.2 million euros among all its shareholders. Due to its percentage of participation, the part corresponding to Pontegadea exceeds 13 million euros. A long-term strategy. Ortega’s investment in the energy sector is not an opportunistic bet in a sector in times of economic prosperity. It is a strategy that he has been building since 2019, when he joined Enagás, and that was completed in 2021 with the entry into Redeia and REN. To this we must add the alliances that has signed with Repsol to participate in renewable energy portfolios: wind farms in Aragón and Castilla y León, and solar plants in Albacete and Cádiz, among other assets. The Pontegadea model does not consist of investments by distribution companies, but rather in companies that manage infrastructure energy companies, which offer regulated and stable income with recurring dividends year after year. They are not high risk investments nor high speculative volatilitybut in strategic sectors independently of the economic cycle. In Xataka | There is a 50-ton “nuclear reactor” in a bunker in Fuenlabrada: it has been donated by Amancio Ortega Image | Pexels (Jan Kopriva), GTRES

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