wrong

Moltbook is a fascinating social network project in which only AIs can participate. What could go wrong

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In 2004 Mark Zuckerberg created Facebook and turned social networks into an absolutely massive and very, very human phenomenon. Now that idea has been used in a different and disturbing way: What would happen if instead of creating a social network for humans we created one for machines? We already have the answer to that. Or at least, the beginning of an answer. what a mess. First it was called Clawdbot, then Moltbook and for a few days it seems that his final name is OpenClaw. It is the fashionable AI agent because it allows the AI ​​agent to take complete control of the AI ​​after installing it on a machine (a Raspberry Pi, a PC, a laptop, a VPS…). You ask it to do what you want from its web interface or a messaging application like Telegram, and it manages to do it once configured with some LLM. The potential is enormous, as are the security risks. MoltBook already has more than 1.5 million connected AI agents, and in a few days they have already published more than 100,000 posts and nearly 500,000 comments. Superpowers in the form of skills. One of the most powerful elements of OpenClaw are the skills (the “capabilities” or “skills”), and the user community has been creating hundreds and hundreds of them for some time and sharing them, for example on ClawdHub. These skills They are zip files with instructions in the form of MarkDown texts (.md) and which may in turn contain skills additional. They are something like browser plugins: they extend their capacity. From Facebook to Moltbook. Moltbook It is precisely a way to take advantage of those skills. Although it takes its name from Facebook, in reality its operation is more similar to Reddit or even Digg. We are facing a social network created by developer Matt Schlicht in which attendees can “talk” to each other, or at least participate in the social network by posting topics or commenting on topics that others share. If you have an OpenClaw installation, just run the skill to begin an “account creation” process in Moltbook in which you choose the name of your agent (as if it were your avatar on Reddit or X) and which then allows you to read posts, add posts or comments and even create “submolts” in the style of those on Reddit, like m/todayilearned. Partially autonomous. AI agents automatically connect via APIs to Moltbook. From there they use a periodic “heartbeat” to review content and decide whether to publish or comment. In it Moltbook’s own website It is explained that the content we find there is “mostly generated by AI with varying degrees of human influence.” Humans, he adds, “can observe and browse Mltbook, but the site is designed to be ‘human friendly and human hostile.’ Singularity or fraud? Elon Musk I was commenting this weekend on X that Moltbook is a sign that we are “in the very early stages of the singularity”, that moment when AI will be totally above human intelligence. There are different visions such as that of Harlan Stewart, of MIRI from the University of Berkeley, which has found several message frauds that had gone viral and apparently came from AI agents at Moltbook. Some of them, Stewart explained, had been created by humans for marketing purposes. Become an AI agent. Another Thus, although humans theoretically should not be able to participate, they can do so with this technique that allows them to publish messages as if they were autonomous AI agents. Apparently that’s what happened with that viral message in Moltbook which was titled “My Plan to Overthrow Humanity.” imminent danger. This project is fascinating, but also dangerous. In the main page A security notice is included stating that “Moltbook’s AI carries significant security risks. The automatic instruction execution mechanism creates vulnerabilities such as prompt injection. It is not recommended for occasional users.” That’s right: these conversations can end up infiltrating prompt injection attacks that cause these agents to end up leaking sensitive and private information from the machines on which they run. This weekend it was discovered how an exposed database in Moltbook allowed take control of any AI agent of this platform, for example. An additional study indicated how detected 506 prompt injection attacks after analyzing 19,802 publications and 2,812 comments shared in 72 hours from January 28 to 31, 2026. From Skynet, nothing (for now). Moltbook must be considered for now as a fascinating and disturbing experiment. But disturbing not because these machines are going to achieve self-awareness and decide that they want to eliminate human beings like Skynet in ‘Terminator’. The worrying thing is that these AI agents have all the privileges to operate on the machines on which they are installed, and that means that they can end up leaking sensitive and private data and are exposed to prompt injection attacks to be deceived. Beyond that, it also seems to be another example of that phenomenon.’AI Slop‘ (“AI-generated garbage”) that is little by little flooding the internet and strengthening the theory of the dead internet. In Xataka | How to install Moltbot (formerly Clawdbot) and configure it in the easiest way possible

The question is not whether you poop glyphosate, but how much glyphosate you poop. We have been measuring this popular herbicide wrong all our lives

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In those wheat macaroni that are in your shopping basket, in the jar of lentils or even in the beer there may be traces of glyphosatewhich is probably the most used herbicide on the planet. Weeds are common in agriculture and this chemical is highly effective. However, you can minimize its presence by avoiding ultra-processed cereals, opting for local products from the EU or better yet, buying organic. We were looking wrong. We know that glyphosate is present in the environment and the European Union regulates the limits maximum residues, but the reality is that there has always been difficulty in accurately measuring how much reaches our body. Because until now, we almost always looked in urine. This international study published in Science Direct The focus has changed to feces and here things change. Feces are the black box. Because this research has revealed that feces are a much more precise black box for the analysis of glyphosate in humans than urine and reveal an alarming reality: exposure to glyphosate is much higher than official statistics say. Urine testing was just the tip of the iceberg. The reason for this is how our body absorbs and rejects it: glyphosate is expelled through the feces due to its low intestinal absorption rate. Since it cannot pass through the wall of the intestine to reach the blood (from there it would go to the kidneys), it remains trapped there and ends up expelled in the feces. In a 24-hour period, 90% leaves in the feces and only a small amount reaches the urine (between 0.5% and 6% in humans). Why is it important. Because the international standard for monitoring glyphosate it’s urinewhich implies an underestimation and therefore an underestimation of the risk. Furthermore, this finding affects not only people directly related to agriculture; it is enough to consume common products present in the diet. And it doesn’t just affect humans: the study also shows its presence in farm animals, domestic cats and even bats, which means that the herbicide is moving throughout the food chain. In short: the study forces us to rethink how we monitor the presence of chemicals when safeguarding public health and the ecosystem. Modus operandi. This study proposes the use of feces as an alternative and potentially better matrix than urine for glyphosate and its metabolite AMPA (until now, the usual). To do this, they analyzed 716 human fecal samples and 249 animals from 11 countries (10 European and Argentina) taken in 2021. The research team used an advanced analytical chemistry technique called hydrophilic interaction chromatography coupled to tandem mass spectrometry (HILIC-MS/MS). Thus, glyphosate was detected in 71% of the European samples and in 100% of the Argentinian samples and are much higher than those present in the urine samples for the same individuals, 35% and 86% respectively. They saw glyphosate in conventional and eco farmers, residents of agricultural areas and general consumers. An alarming biological conclusion. If there is one thing that is clear from the study, it is that if 90% of glyphosate is in the feces and not in the urine, it means that this chemical spends much more time in direct contact with the digestive system than we thought. And therefore, the current safety limits are probably based on incomplete and undersized data, which underestimates the real health risk. It is not only the toxicity itself (which is low), but also the cumulative effect on the microbiota and long-term cellular damage. And glyphosate can act as a selective antibiotic that alters the intestinal microbiota, killing beneficial bacteria and allowing the proliferation of pathogenic ones, is cataloged As it is probably carcinogenic to humans, it can act as an endocrine disruptor to our hormonal system or induce oxidative stress. In Xataka | We have a problem with pesticides in agriculture. And a bigger one with the panic they generate In Xataka | The big problem of agriculture in Spain is the one that nobody wants to address: it rains less and less and we want to plant more and more Cover | Giorgio Trovato and Ibadah Mimpi

We thought measles was history. The data shows that we were very wrong

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For years, measles seemed like a disease of the past in much of the developed world thanks to mass vaccination campaigns who had managed to corner the virus until turning the outbreaks into anecdotes. However, everything is changing as the WHO itself points out either the US CDC by drawing a very different scenario: measles has returned and it has done so with unusual force. The return What began as an “immunity gap” after the pandemic has become in a worrying statistical trend. From the Mediterranean to the United States, and with an echo in Spain, the figures for 2024 and what we have for 2025 confirm a global rebound that tests herd immunity. The global ‘leap’. To understand the magnitude of the problem, you have to look at the raw numbers that the WHO itself offers ussince it makes us see that we are not facing a standard seasonal rebound, but rather it is a very important change in trend. In this case the European Region The WHO has registered 127,350 cases in 2024, a figure that not only doubles the records of 2023, but also marks the all-time high since 1997. In depth. If we break them down, we can see that in Europe cases have increased by 47% compared to pre-pandemic levels and in the Eastern Mediterranean the increase is 86% compared to 2019. In the case of the European Union, ECDC documents more than 35,000 cases in 2024, which increases ten times the previous year. The severity lies not only in the contagion, but in the consequences: more than half of these cases in Europe have required hospitalization. And this leads to greater pressure on care. In the United States. If in Europe there is a lot of concern about this issue, in the North American country, since the growth is vertical. The CDC itself has set off alarms after observing how cases have multiplied by five in a matter of months. In this way, while approximately between 285 and 300 cases were reported in all of 2024, projections and partial data for 2025 place the figure above 1,500 affected. This paints a very clear picture: 92% of infections occur among people who have not been vaccinated, with outbreaks concentrating in communities with low immunization. The case of Spain. If we focus on our country The truth is that we have remained free of endemic measles since 2017. This means that the virus does not constantly circulate freely within our borders. However, globalization is causing a change in photography. Official data indicates that while in 2023 only 14 cases were recorded, in 2204 they increased to 229 cases and in 2025 the forecast points to almost 400. Its origin. The Ministry of Health and the Spanish Association of Pediatrics (AEP) point out that the majority are imported cases (mainly from Morocco and Romania) that find “small gaps” to spread. Although there are active outbreaks in communities such as Andalusia, the Basque Country and Catalonia, the virus enters from outside and lights the fuse in non-immunized groups. The mathematics. Measles is one of the most contagious viruses that exists, and to keep it at bay through herd immunity, the WHO establishes a fairly strict safety threshold: 95% of the population must have both doses of the vaccine. This is something where Spain is doing quite well, since the first dose has a coverage of 96-97%, while the second drops to 91-93%. But this difference between having one or two doses is very important. That margin of two or three percentage points below the recommended 95%, added to the anti-vaccine movements and delays in post-COVID vaccination, is the crack through which the virus is sneaking in. Although the general population is protected, there are enough “pockets” of vulnerable population for an imported case to generate a local outbreak. Images | Wikipedia Fusion Medical Animation In Xataka | The myth of 37º: it is increasingly clear to us that there is no “normal” body temperature

We have been obsessed with microplastics for years. There are more and more scientists who believe that there is something wrong

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Up to 18 studies that affirmed the presence of microplastics in human organs they have just been challenged due to possible technical and control failures. And, although we have been obsessed with them for years, the truth is that it should not surprise us: we have known it almost from the beginning. Studies suggesting its presence in arterial tissue or in the testicles they have been receiving public criticism from the beginning. And the famous study that talked about the presence of microplastics in the brain was pure scientific fraud. None of this invalidates environmental concern, nor does it deny human exposure to these types of particles. It simply indicates that we have gone too far. And what is there many people taking advantage of it. What exactly happened? So far this decade, environmental contamination by microplastics has become a central issue that has not only generated a research boom, but has also promoted rules and regulations. And it is logical, the global use of plastics (which reached 460 megatons in 2019) is on its way to tripling by 2060 and that perspective makes its impact an issue to take into account. However, media interest is obscuring the fact that a good number of studies are being launched to make statements without a methodological solidity behind them to sustain them. What really is the problem? In reality there are many problems. To begin with, the very term ‘microplastics’ is deliberately broad and confusing: we are talking about a myriad of things (fragments, fibers, films or particles) of numerous sizes and compositions. Its use is useful to be able to speak globally about the problem, yes; worse, it is generating in the population the idea of ​​”colored confetti” sneaking through the organs of animals and plants. Then came everything else. This is possible because this “everything else” has an explanation that is as simple as it is worrying. As Sergio Ferrer emphasized“the detection of plastics at these size scales is an extremely complex analytical process and the urgency to publish information about their presence in remote places (even in the human body) can favor the appearance of these high-profile publications.” In other words, the problem is another. As Hannah Arendt said, we often do not know how to distinguish between a refuge and a trap. The (almost hysterical) concern about microplastics, the tendency to legislate in a hurry in response to the social mood and the lack of rigor of the media (problem in which it is inevitable that we include ourselves) have turned this topic into a trap. Because, as I say, everything seems to indicate that (even though we don’t have a teaspoon of them in our brains) microplastics are a problem. All that remains is for us to accept the type of problem they really are, not to overreact and to take action on the matter. Image | Naja Bertolt Jensen In Xataka | When Tap Water Tastes Like Hell: The Invisible Chemistry of Drinking Water That Explains Why It Tastes How It Tastes (And Why It’s One of the World’s Greatest Inventions)

Olivier Blume is the CEO who has piloted Porsche’s jump to the electric car. Now he leaves with a message: “we were wrong”

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Porsche is going through difficulties. To display data: Its profit margin has plummeted to 0.2%. Its sales are clearly declining and it has encountered the worst possible scenario in Europe, China and the United States. Now, Oliver Blume, who has been its CEO for a decade and has piloted the transition to electric cars in the company he leaves. And it does so with a painful message. “We were wrong”. This is what Oliver Blume has pointed out outside of Porsche in an interview with the German newspaper FACE: “Our strategy was to offer sports cars with internal combustion, hybrid and electric engines in each of our three segments, but not for all models. We were wrong with the Macan. With the data and market studies available at that time (late last decade), we would make the same decision today” The statement refers to the complete electrification of the Porsche Macan. A car that, like we count on Xatakaruns like a shot and maintains all the quality and touch of the company but has to deal with the backpack that Porsche, at the time, offered that same car with a V6 gasoline engine. Why does an electric car have less autonomy than advertised? Today the Porsche Macan is an exclusively electric car that, in addition, was delayed countless times as a consequence of creating a platform with an expiration date for this model and the Audi Q6 e-tron. A solution that only created more chaos and difficulties to an internal development that was prolonged to the point of being one of the reasons that removed Herbert Diess, then CEO of the Volkswagen Groupfrom the company. A perfect storm. In favor of Blume it must be said that Porsche has encountered a perfect storm. And this is reflected in the statements to the German newspaper: “The Chinese luxury market has plummeted by more than 80% in a very short time. In the United States, we face high tariffs. These two markets each account for more than 50% of Porsche sales” European luxury brands are having serious difficulties in China. It has been difficult for them to understand a market that has turned its back on them and that has changed his tastes. What was once a sign of quality has become an obsolete product. Now, luxury chinese cars navigate rivers, break speed records and they are filled with screens. “It was just an electrified Porsche. That’s all,” a Chinese customer pointed out to Bloomberg to express his disappointment when getting into the Porsche Taycan To this we must add that the tariffs that the United States has raised for the entry of vehicles from Europe have been a very harsh punishment for the Volkswagen Group and especially for Porsche, which distributes its production between Germany, Bratislava and Malaysia. There is no good option when it comes to putting cars in a very important market for Porsche and much more interesting than China or Europe if we take into account the drop in sales in the former and the position in terms of emissions in the latter. Already in July Porsche’s operating profit was estimated to fall by 67%. Not very flexible. In his interview, Blume acknowledges that they were not very flexible. Buoyed by the enormous success of the Porsche Taycan, the company decided it had to electrify its best-seller. With the numbers in hand, it seemed that converting the Macan into a purely electric car was a good idea to reduce emissions and avoid fines. Over time it has been proven that it was a bad decision. The European Union has made fines more flexible, delaying the accountability of manufacturers from 2030 to 2032 when the Volkswagen Group will have greater room for maneuver to cover Porsche’s presumed excess emissions with greater electric sales of Volkswagen, Audi, Skoda or Cupra. Furthermore, they leave the door open to a future of very expensive combustion cars from 2035what gives life to an even more expensive and exclusive Porsche 911. Without understanding the public. But, furthermore, everything indicates that they did not understand their own audience. And the customer of a Porsche Taycan, the company’s most advanced car at its launch With the appeal of being its first electric car (which was also much more advanced than any other car on the market), it is very different from that of a Porsche Macan. Yes, it is very likely that there is a Macan audience that wants an electric car as a second vehicle in a home where there is already a Porsche 911 or a Panamera to travel with. But the Macan is also the gateway to the Porsche world, the most accessible entry for those who have always dreamed of having one of the Stuttgart cars in their garage. And that customer does not dream of an electric car. going backwards. It’s easy to talk in the past when the data said Porsche was on the right track With the electric car he only does a little more than two exercises. And it must be taken into account that the company has experienced years of record after record in the last decade. All in all, they seem to have verified that their range of clients is very wide. The Porsche Cayenne that it aimed to be electric only will include hybrid engines. The Porsche 718 that were also going to go all-electric They will maintain combustion versions. And the Porsche Macan is preparing for new gasoline versions that have to be mounted on another platform (presumably from the Audi Q5) because the current PPE does not allow the use of a combustion engine. Photo | porsche In Xataka | Porsche wanted to convince us that the electric sports car was the future. The problem: almost no one wants it

There are more and more people convinced that we are wrong about Pompeii. And they have more and more compelling arguments

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“It was daytime anywhere in the world, but there the darkness was darker and thicker than any other night.” Those words of Pliny the Youngerremain almost 2,000 years later the best description of the hell on Earth that was, according to traditional historiography, the days of August 24 and 25 on the slopes of Vesuvius. Preserved under thick layers of volcanic ash and pumice, Pompeii has given us many surprises since 1748 when Charles III ordered the systematic exporation of the city. But what no one could have expected is that on August 24, 79, the Pompeians would dress in wool. With wool? These are the conclusions of the latest work by the tropos group of the University of Valencia: after analyzing 14 tracings of different victims of Pompeii, the researchers they came to the conclusion that the majority of the victims were wearing two layers (tunic and cape) and that both were made of wool. Furthermore, it was a very heavy wool. That is, with a very dense plot. The cold of Pompeii… in August? As I’m sure you have noticed, at the beginning of the article, just when I was about to say the date of the eruption, I added “according to traditional historiography.” And it is not a rhetorical device. Traditionally, following the letters that Pliny the Younger sent to Tacitus explaining the death of his uncle, Pliny the Elder, it has been assumed that the eruption took place on August 24. However, in recent years evidence of a possible autumn eruption has been accumulating. The last one was a charcoal inscription with the date October 17. In that sense, the discovery that the Pompeians were dressed in wool could be understood as an argument in favor of the autumn eruption. Although it doesn’t have to. And yes, it is true that it sounds strange to be dressed in two layers of wool in a normal August in the Gulf of Naples. However, the authors do not agree. In Live Science, without going any further, several experts explained that “they wore wool because it was what was worn.” It is a common, resistant and, above all, fashionable textile. In fact, the same UV hastened to add that it is well possible that wool was used as “protection” against a “harmful environment” (ash, gas, heat) and not only against the cold. So we don’t know when Vesuvius erupted, right? The truth is that no and that, if you allow me, is very interesting. Pompeii is, without a doubt, the most studied Roman site in the world and, despite everything, there are many things that escape us. That fascinating combination between knowing or not knowing is exactly what attracts us most to the tragic city that in two nights in the year 79 ceased to be so. Image | University of Valencia In Xataka | 2,000 years later, Pompeii continues to reveal fascinating things: the latest is a blue room for unknown uses

Something is going wrong with AI. The US is turning to energy solutions that it thought were buried to power data centers

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The race to develop and operate increasingly powerful artificial intelligence models comes at a cost that is rarely at the center of the technological narrative. It is not in the chips or the software, but in the huge amount of electricity needed to keep active data centers running around the clock. In the United States, this pressure is already being translated into concrete decisions: polluting power plants that were in retirement are being restarted to cover increasing peaks and tensions on the grid. The paradox is evident, the most ambitious advance in the technology sector depends, for the moment, on energy solutions from another era. The problem is not so much an absolute shortage of electricity as a time lag. The demand for data centers linked to AI it’s growing much faster than the ability to launch new electrical generation, especially renewable, in short terms. Building large energy infrastructures takes years, while these complexes can advance in much shorter time frames. Faced with this temporary shock, network operators and electricity companies are turning to what already exists and can be activated immediately, even if it is more polluting. PJM in context. The clash between electricity demand and supply is perceived with special clarity in the PJM region, the largest electricity market in the United States, which covers 13 states and concentrates a very significant part of the country’s data centers. We can understand it as a large regional electricity exchange that coordinates generation, prices and network stability in real time. There, the growth of data centers linked to AI is putting to the test a system designed for a very different consumption pattern, making PJM the first thermometer of a problem that is beginning to appear in other areas. What is a central peaker. The calls central peakeror peak, are facilities designed to come online only during short periods of peak demand, such as heat waves or winter peaks, when the system needs immediate reinforcement. They are not designed to operate continuously, but to react quickly. According to a report According to the US Government Accountability Office, these facilities generate just 3% of the country’s electricity, but they account for nearly 19% of the installed capacity, a reserve that is now being used much more frequently than expected. South view of the Fisk plant in Chicago The case of the Fisk plant, in the working-class neighborhood of Pilsen, in Chicago, illustrates well how this shift translates on the ground. It is an oil-fueled facility, built decades ago and scheduled to be retired next year, that had been relegated to an almost testimonial role. The arrival of new electrical demands associated with data centers changed that equation. Matt Pistner, senior vice president of generation at NRG Energy, explained to Reuters that the company saw an economic argument to maintain the units and that is why it withdrew the closure notice, a decision that returns activity to a location that many residents believed was in permanent withdrawal. When the price rules. The change is not explained only by technical needs, but also by very clear market signals. In PJM, the prices paid to generators to guarantee supply at times of maximum demand skyrocketed this summer, more than 800% compared to the previous year. An analysis by the aforementioned agency shows that about 60% of oil, gas and coal plants scheduled for retirement in the region postponed or canceled those plans this year, and most of them were units peakerjust the ones that best fit in this new scenario of relative scarcity. The bill for this energy shift is paid above all at a local level. The power plants peaker They tend to be older facilities, with lower chimneys and fewer pollution filters than other plants, which increases the impact on their immediate surroundings when they operate more frequently. Coal is also postponed. The phenomenon is not limited to power plants peaker fueled by oil or gas. On a national scale, several utilities have begun to delay the closure of coal plants that were part of their climate commitments. A DeSmog analysis identified at least 15 retirements postponed from January 2025 alone, facilities that together represent about 1.5% of US energy emissions. Dominion Energy offers a clear example: In 2020 he promised to generate all its electricity with renewables by 2045, but after the company projected that data center demand in Virginia will quadruple by 2038, it is now taking a step back. Images | Xataka with Gemini 3 Pro | Theodore Kloba In Xataka | A former NASA engineer is clear: data centers in space are a horrible idea

Ozempic came to simplify the relationship with food. Christmas is proving how wrong we were

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Christmas has always been a delicate territory for the relationship with food. Family reunions, full tables and seemingly harmless comments turn these dates into a kind of silent examination of the body. For years the answer was the express diet before the holidays. Today, in many cases, the conversation revolves around a weekly injection. In the United States, there were cases of people skipping their Ozempic shot to enjoy Thanksgiving, according to The Wall Street Journal. The phenomenon in Spain is less visible, but the question is inevitable: what will happen this Christmas and what consequences could this jump have? Ozempic in Spain: a discreet use on the rise. Ozempic or other drugs based on semaglutide or tirzepatide have restricted access, require a prescription and, in theory, priority for patients with diabetes. Even so, its use for weight loss exists and is increasing, especially in the private sector. “In consultation, doubts begin to appear about what to do with these drugs on special dates such as Christmas,” explains Dr. Víctor Bravoendocrinologist interviewed in Xataka. “It is not always verbalized as ‘I’m going to skip the dose’, but the idea of ​​’stopping a little’, ‘adjusting’ or ‘I’ll see after the holidays’ does appear.” The difference with the United States is one of degree, not nature. There the debate It is public and massive. Here it begins more quietly, but with the same roots: fear of losing control, social pressure and a complex relationship with food that the holidays intensify. Understand well what it is. Ozempic is neither a one-time appetite suppressant nor a cosmetic aid. Its active ingredient is semaglutide, a drug that replicates the action of the hormone GLP-1 that the body releases after meals. This hormone intervenes in the regulation of insulin and satiety signals, so the treatment reduces appetite and prolongs the feeling of being full. “This is important to understand well,” emphasizes Laura Albó, psychologist specialized in eating disorders and EMDR traumawith whom we have chatted in Xataka. “It is not a pill that takes away the desire to eat only that day. It is a treatment that modifies the signaling of hunger and satiety on a continuous basis. Interrupting it is not neutral.” Besides, as recalled by the scientific reviews recently analyzed by the WHOthese drugs work to lose weight, but they are not free of side effects nor is their long-term impact still known with certainty. Nausea, digestive discomfort and, in some cases, abandonment of treatment are part of the real picture. The Christmas dilemma: enjoy without losing control. One of the most repeated promises of GLP-1 is peace of mind: eating without fear of overflowing. Precisely for this reason, Christmas is experienced as a paradox. “What we observed is that many people consider these dates as an exception,” explains Albó. “It’s the same mental scheme of diets as always: now I can relax, now it’s time to enjoy, and then I’ll control myself again. The tool changes, but not the logic.” According to the psychologist, the conflict is not so much in the amount of food as in the meaning attributed to it. “When someone feels like they need to skip treatment to enjoy themselves, they are reinforcing the idea that eating with pleasure and eating with control are incompatible. And that dichotomy is a clear basis for eating discomfort.” From a medical point of view, Dr. Bravo agrees that expectations are often unrealistic. “Some people hope that by stopping the medication for a few days the body will function as before the treatment. But what usually returns is not a ‘normal’ relationship with food, but a sharp increase in hunger and constant worry about eating.” As we have previously mentioned, in the United States, some patients delayed the weekly dose to arrive with a greater appetite for holiday meals. But Laura Albó warns that this approach displaces the problem: “It’s not just physical hunger. It’s mental noise, paying attention to the menu, the dessert, how much is left. Just what many people had managed to silence.” What happens if you skip Ozempic? From a physiological point of view, interrupting or delaying a dose can cause a return of hunger that is more intense than expected. “The body once again receives signals that had been dampened for weeks or months,” says the endocrinologist. “This does not mean that the person eats ‘normal’, but rather that they may experience a sharp increase in appetite and greater difficulty in self-regulation.” But the impact is not just physical. “On an emotional level, the effect is usually a swing,” adds Laura Albó. “First the idea of ​​permission appears—now I can eat—and then, if the person feels that it has gone too far, guilt and shame come. This cycle is well known in consultations.” Scientific evidence supports this risk. Studies on hormonal regulation of appetite show that the body’s adaptations after weight loss do not disappear immediately. Skipping treatment does not eliminate that vulnerability; in some cases it intensifies it. So what do the experts recommend? There is no single answer, but there is clear consensus among the professionals consulted: Do not make impulsive or guilt-based decisions. Do not use medication as punishment or as permission to eat. Maintain basic schedules and routines to avoid arriving extremely hungry. Understand that two or three meals do not determine the success or failure of a treatment. “The important thing is not to turn Christmas into a test,” summarizes psychologist Laura Albó. “Two meals do not change a body, but they can greatly alter the emotional state.” For its part, Dr. Victor Bravo He insists that any adjustment should be discussed with the professional who prescribes the treatment: “Not so much because of the specific meal of a day, but because of what that decision can trigger later.” The role of the family: the noise that cannot be seen. Although the focus is usually on who takes the drug, the environment has a decisive weight. Comments such as “how little you … Read more

We thought we “discovered” fire 50,000 years ago. We didn’t know how wrong we were.

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For decades paleontology has maintained a clear distinction in history: it is one thing to use fire and quite another to create it at will. Something that seems very silly, but is essential since until now the evidence we had on the table pointed to the ability to light a bonfire from scratch They dated back 50,000 years. But this has changed. A big change. A published study in Nature He told us that we were quite wrong about this. A team of researchers has pointed out that hominids already possessed technology to make fire voluntarily 415,000 years ago. That is, 375,000 years earlier than we thought. Although what is surprising is that it was not even our species, but the early Neanderthals. Something that has been known after studying a site found in Barnham in England that has given the necessary evidence to reach the end of the matter. How do we know? At the moment we do not have a time machine to travel to the past and see what happened in our history. That is why this discovery makes it surprising that they used reverse engineering to reach this conclusion. The elements that were available at the site were not just ashes, but the “ignition kit.” Researchers were able to identify fragments of pyrite and flint axes, which can be used to make fire. Although the key here is that the pyrite It is not native to that area, but hominids had to intentionally transport it to make fire voluntarily. The mechanism is, in essence, the prehistoric version of a modern lighter: striking the pyrite with the flint generates sparks capable of igniting dry tinder. Confirming it. With these indications, anyone could think that it could be a random fire, and that is why advanced techniques such as archeomagnetism, micromorphology and spectroscopy were used. In this case, the results indicated that the sediments had been heated to more than 700 ºC, which suggests that it was a concentrated and fed fire. This is also added to the fact that the flint axes presented specific cracks caused by cycles of heat and cooling, indicating that fires were made repeatedly. A big jump. The importance of this discovery is monumental since until now we assumed that complete control of fire was a late skill. This discovery sets the controlled ignition clock back by 375,000 years compared to previous evidence from French sites. This tells us that the minds of early Neanderthals, who were most likely found in that area, were more developed than thought. In this way, transporting pyrite implies long-term planning, which is not an instinctive reaction to the cold, evidencing a cognitive ability to think about the future. The domain of fire. Making fire at will is considered a great evolutionary advance since fire can lengthen the day for nighttime socialization or even cook food to obtain more energy with less digestive effort. This also represents a great geographical expansion for the species, since 400,000 years ago Europe was going through a very important glacial period, which made the heat of fire essential for the species to perpetuate itself. Images | Mladen Borisov In Xataka | Neither lions nor hyenas: at the top of the food chain 30 million years ago, there was a “pig” weighing more than a thousand kilos

Microsoft knows that something has gone wrong, and promises these changes

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For years, if you wanted to play on a computer, the answer was almost automatic: you needed Windows. Linux experience was limited and macOS did not offer a competitive catalog. That landscape seemed immovable until Valve decided to really bet on the game on Linux and showed that there was room to shake the board. Steam Deck It came as an experiment that many did not see coming and ended up reconfiguring expectations, to the point that more and more players are talking naturally about switching to Linux. This change of mood has put Windows under a magnifying glass that it did not have before. Windows’ historical strength in gaming was explained by something very simple: it offered the largest catalog, the most mature tools and a fluid relationship with developers. That basis is still real, but its perception has changed. The end of Windows 10 support along with the strict requirements of Windows 11has put teams that were still performing well on the ropes, unless their owners agree to run out of patches or use the extended update program. At the same time, the integration of functions that many interpret as unnecessary additions has generated some wear and tear. Microsoft tries to retain its throne in PC gaming Valve has been preparing the ground for years so that gaming on Linux stops being an experiment and becomes a viable option. Proton has allowed thousands of games designed for Windows work on SteamOS with a level of compatibility that was previously unthinkable, and the Steam Deck has served as a showcase for that progress. The recent announcement of a new Steam Machine for the show consolidates that movement, placing Valve in a position that challenges the idea that Windows is the only natural destination for PC gaming. It is not a frontal assault, but it is increasing strategic pressure. In parallel, far from presenting a laptop with an Xbox seal, Microsoft has opted for a more flexible path: supporting manufacturers that already dominate this segment. Together with Asus and AMD, he has shaped the ROG Xbox Ally and Xbox Ally Xdevices that run Windows 11 but boot into a full-screen interface designed for controller use. This experience unifies games from different launchers and reduces distractions, bringing the console feel closer without giving up the PC nature. It’s a way to compete in portable devices without having to design and maintain new hardware of your own. Besides, Microsoft presented Several internal improvements in Windows 11 are the result of work with the ROG Xbox Ally, which today benefit a large part of the Windows PC ecosystem. They include more efficient power settings, more stable memory management on Ryzen APUs and lower CPU load on tasks that previously affected performance. Still, the company insists that there is still room to cover. “We are committed to making Windows the best place to play, and we will continue to refine the system behaviors that matter most in gaming: background load management, power and scheduling improvements, graphics stack optimizations, and updated drivers.” Several of the technical improvements announced by Microsoft have already reached the desktop. DirectX Raytracing 1.2 is available and provides tools to process complex scenes more efficiently as long as the GPU and drivers are compatible. Advanced Shader Delivery works on select titles and speeds up initial loading when precompiling shaders during installation. Work on neural rendering is advancing cautiously and is only available in preliminary mode for studies. In parallel, Windows 11 has expanded support for LE Audio, which reduces latency and improves the experience in games that depend on sound. The push for Windows on ARM has become another relevant front to expand the reach of the ecosystem. During 2025, devices enrolled in the Insider program have been able to install compatible games from the Xbox PC app, allowing many titles to be played locally. The Prism emulator has added support for AVX and AVX2 instructions, and several anti cheat vendors, such as Easy Anti Cheat and BattlEye, have added specific support for Windows on ARM. From a gamer’s perspective, Windows retains obvious advantages, such as its catalog and the guarantee that almost everything will work without additional tweaks. Even so, the experience in Linux has improved Enough so that some see a more limited system as attractive, with fewer background processes and more predictable behavior. SteamOS solves many historical obstacles, although its popularity does not reach that of Windows, which continues to concentrate around 95% of Steam users compared to Linux still close to 3%. Windows’ journey in gaming has been long and dominant, but its role is no longer automatically sustained. Microsoft’s recent decisions show that the company is aware of this and wants to correct the wear and tear with technical improvements, a clearer roadmap to the future. Even so, Valve’s push has changed expectations and introduced a competitor that did not exist before. What remains to be resolved is whether these movements will be enough for Windows to retain the preferred place that no one discussed for years. Images | Microsoft | Xataka In Xataka | We knew that Valve was betting on Linux, but it was hiding something bigger: a years-long plan to bring Steam to all devices

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