years

enter the United States in three years despite 100% tariffs

by

The Chinese automotive industry has set out to conquer the West, and Europe is too small for them. The great objective is to take a bite of the cake that is the United States, a risky bet if we take into account the tariff wall to the chinese electric car. And there is already a firm proposal: Geely is preparing its assault on the United States with two aces up its sleeve. Volvo… and Canada. The plan. Does a few daysthe Autoline Network media public an interview with Ash Sutcliffe. He is the head of global communications at Geely Holding Group, a Chinese giant that has its own brands such as Zeekr either Lynk&Cobut which also controls the Western Lotus, PolestarSmart and… Volvo. The interview was published within the framework of CES, the technology fair in Las Vegasand it was strange because, if there are 100% tariffs on Chinese electric cars, what was Geely doing there? The answer is simple: they are going to assault the US market. Sutcliffe commented that they are studying all the global markets in which they can expand and there is an internal question: when and where they will land in the United States. He did not share the roadmap, but did comment that they will have “an announcement on this in the next 24 to 36 months.” Trojan horse. There are many questions here and none of them were clearly answered in the interview. For example, what will happen to US tariffs or regulations on the Chinese software in cars? Sutcliffe simply said that Geely is an international group used to following the data protection and trade regulations of various countries, so they will do “whatever is necessary to follow those regulations when the time comes.” He gave the example of the European GDPRand although the interview does not connect the dots, the fact that they have taken advantage of such a framework to firmly assure that they will be in a market as complicated and hostile as the American one in the short term is a sign that they have given the matter more than one turn. Geely has an advantage here with Volvo, Polestar and Lotus. They are brands under their umbrella and already operate in the United States, but specifically, what Sutcliffe stated was that they want to land with Lynk & Co and Zeekr. North American Gate. There are two important questions. One is the tariff wall: 100% on electric vehicles from China. In practice, it would make it unfeasible for Geely to start selling cars because users would have to pay a premium that would make the brand simply unable to compete on price. But there are two safe passages. On the one hand, Geely build factories on American soil, a door opened by the Trump Administration if, with this, local employment is created. The Volvo factory South Carolina It would be an interesting and organic option for that local production. On the other hand, use brokers that export to US soil. There Canada can be the ace up your sleeve for the Chinese company. If they decide not to assemble the Zeekr/Lyn & Co in South Carolina, they can always import the vehicles from Canada and take them to the United States through that northern gate. Canada has recently moved from a 100% tariff Chinese electric vehicles at 6.1%. It is a very limited movement, since the initial quota will be 49,000 units per year. It’s a ridiculous number, but a start, and it could be a test bed for Geely to bring its 100% electric brands to the US from Canada. But hey, the United States is very aware of this and in fact, they have already saying that Canada “is going to regret it.” Feet of lead. With this management of brands like Volvo, Geely has an easier time than other Chinese competitors to get its foot in the US market, but there is an important nuance in all this. Geely has not said “in three years we will be selling thousands of cars,” but rather “in three years we will detail our plan to enter the United States.” However, although as we said, there is no specific public plan, it is evident that a statement like this implies that they are oiling the machinery to try do the same as in Europe. Now, taking into account the political climate and government maneuvers on issues such as trade or tariffs, things could change a lot in 36 months. Images | Zeekr, BYD In Xataka | Chinese cars are no longer just cheap: they are the world’s largest product experiment

Creating a C compiler cost 2 million dollars and took 2 years. Claude Opus 4.6 did it in two weeks for $20,000

by

We are facing a technological inflection point. Uo in which software engineering, one of the most complex and demanding technical tasks in history, little by little It is becoming the “killer app” of AI. It is clear that generative AI models are not perfect, but we continue to see extraordinary evolution. The latest example? The C compiler that Claude Opus 4.6 programmed all by himself. what has happened. Nicholas Carlini, researcher at Anthropic, I counted yesterday how “I’ve been experimenting with a new way of monitoring language models that we’ve called “agent teams””. What it has done is ensure that several programming agents work in parallel using the recently released Claude Opus 4.6, and thanks to that it has developed something exceptional with 16 of these agents: a C code compiler. Hello CCC. At Anthropic they have called it Claude’s C Compiler (CCC), and they have published the code, completely generated by Opus 4.6, on GitHub. The project consists of 100,000 lines of Rust code that were generated in two weeks with an API cost of $20,000. And it works: with it they have compiled a functional Linux 6.9 kernel on x86, ARM and RISC-V. Before it was (at least) two million dollars and two years. What this experiment has achieved is to demonstrate how software development can be much cheaper and faster thanks to the use of these agents. Although there is no readily available data on how much time and money compilers cost in the past, the size of these products was enormous, as is the case with Microsoft Visual C++For example. It is difficult to know how much it cost, but it is estimated that it involved 15-20 people working for five years. That’s a lot of man hours and a lot of money to develop and polish that compiler. The estimate of two years and two million dollars may in fact be overly optimistic. another example. Historically, building a C compiler from scratch was considered one of the pinnacles of systems engineering. Not only was in-depth knowledge of processor architecture required, but thousands of man-hours were required to manage optimization and machine code generation. In the 90s the company Cygnus Solutions (clue in compiler development gcc) came to invest more than 250 million in a decade to maintain and port build tools. The real cost was not just in the final lines of code, but in countless hours analyzing CPU and memory patterns to make the resulting binary efficient. Far from perfect, but… Carlini himself explained in the post that this compiler had serious limitations and for example “it does not have a 16-bit x86 compiler which is essential to start Linux outside of “real mode”, and it does not have its own assembler nor its linker“. It is probably far from mature compilers, but even so the achievement remains exceptional and points to that future in which even very complex developments can be supported with AI. They will be expensive, no doubt, but their total development will probably be a fraction of what they cost a few years ago. Cursor already demonstrated it. Before Anthropic launched its AI-programmed compiler, Cursor completed a similar project, combining GPT-5.2 agents into its development platform to create a working browser in a week. In total the AI ​​programmed three million (!) lines of code in Rust, and although it was again far from being perfect or competing with Chrome, it demonstrated the current capacity of these agentic programming systems. Turning point (especially for Anthropic). For the SemiAnalysis experts Claude Code, current leading exponent of this new era of AI-driven programming, is a paradigm shift: “We believe that Claude Code is the turning point for AI agents and is a glimpse into the future of how AI will work.” This prestigious newsletter predicts an exceptional 2026 for Anthropic, and so much so that they believe it will “dramatically surpass OpenAI.” You ask, the AI ​​programs. If you have tried the vibe codingI’m sure you agree with me: AI allows you to do things you would never have dreamed of. What I did a few weeks ago with Immich made it clear to me, and I continue experimenting with AI and programming “custom” things that solve real problems and needs for me. Yes, for now they are for me and therefore they are not large and complex systems that need to be put into production as happens in professional environments, but I am clear that this is being done little by little and more will be done. In fact, both OpenAI and Anthropic have stood out how in the development of their latest models part of the work has been done, paradoxically, by those same models, which have fed back to each other. And the result is in production and used by millions of people. Something is changing. And it’s something big. In Xataka | OpenAI has a problem: Anthropic is succeeding right where the most money is at stake

In Tokyo there is a bookstore with only one book in the catalog. It has been open for ten years and works

by

In an alley in the Ginza district of Tokyo, a small white-painted room houses what could be considered the most radical bookstore in the world. Morioka Shotenopened in May 2015 by Yoshiyuki Morioka, reverses the commercial logic of the book: while the Japanese publishing industry produces approximately 80,000 new titles each yearthis establishment only sells one, which is renewed every week. It is not performance. Morioka Shoten It is a business that works, selling multiple copies of a single work for six consecutive days. The interior is unusually bare for a bookstore (concrete walls, a piece of furniture used as a counter, a cable telephone) and serves as a canvas for displays inspired by the current book. It is a bit the absolute opposite of Amazon: from infinite offer to minimalism in choice. How it works. Each title remains on display for exactly six days, from Tuesday to Sunday, accompanied by artistic installations, objects or photographs related to its content. The space functions simultaneously as a gallery and a point of sale. The location of the project reinforces this symbolic dimension: the Suzuki Buildingbuilt in 1929 and protected as historic architecture, housed between the 1930s and the end of World War II the offices of Nippon Kobo, the publisher that produced the magazine ‘Nippon’, which many consider foundational for the modern Japanese publishing industry. The context. The opening of Morioka Shoten in 2015 comes at a critical time for the industry. Two decades earlier, in 1995, Amazon had begun operations, and the domino effect was inevitable: American independent bookstores went from more than 7,000 stores in 1994 to just 1,651 in 2009, a reduction of 76%. The physical bookstore model seemed obsolete given the speed of the Internet and recommendation algorithms. Morioka Shoten proposed just the opposite: concentration, deliberate scarcity and time to focus on a single work. The philosophy of issatsu, isshitsu. The Japanese expression issatsu, isshitsu It means “a room, a book.” For eight years, Yoshiyuki Morioka worked as an employee in second-hand bookstores in the Kanda neighborhood, a traditional bibliophile district in Tokyo. He later opened his own independent bookstore in Kayabacho, where he organized author presentations that multiplied sales. The question that it was done was: why maintain hundreds of works if the optimal experience was produced with just one? The Takram design studio developed the store’s visual identity based on a sketch by Morioka himself: a rhombus that condenses the double metaphor of the project, simultaneously representing an open book and a single room. The resurgence of indie. The proposal is part of a broader recovery of independent book trade. In 2015, a curious phenomenon occurred in the United States: American indie bookstores. They began to multiplyup to 49%. The study cited factors such as the feeling of community, the work of booksellers as curators and the capacity of bookstores as meeting points. The pandemic accelerated the trend: since 2020 The sector grew by 70%, in 2024, 323 new stores were inaugurated and in 2025, more than a hundred additional stores were opened in the first months of the year alone. Quality over quantity. The commercial results of the experiment confirm the viability of the model. Morioka Shoten has sold more than 2,000 works since its inauguration. The weekly catalog has ranged from comics by Tove Jansson to botanical photographs by Karl Blossfeldt, novels by Mimei Ogawa and short stories by Hans Christian Andersen, spanning fiction, non-fiction, manga and illustrated books. In an era that offers immediate access to millions of titles, abundance generates paralysis when it comes to decisions. From that point of view, Morioka’s radical limitation does not restrict, but liberates. In Xataka | The 24 most beautiful bookstores in the world

We have been waiting for years for 8K TVs to take over the world. It is evident that we are going to sit and wait

by

In the 80s you guessed that Indiana Jones had a four-day beard, but that’s all. You couldn’t really see it, because on your VHS tapes it was more of a shadow than anything else. Those of us who have gray hair are lucky (or unlucky) to have lived in past times in which image resolution It was something arcane and mysterious. I was content with the video quality of the VHS tapes of ‘The Goonies’ or ‘Indiana Jones and the Lost Ark’ and I was happy with my C64 and its 320×200 pixels and those matches of ‘Match Day II’ with my brother in which we both enjoyed (and fought) as if we were playing the last game. FIFA EA Sports FC. Then, of course, everything improved and we began to realize that the resolution was important. We discovered that DVDs and their 720×576 resolution (in the PAL system used in Spain, in the US the NTSC only reached 720 x480) was like seeing the future until that future became the past with the arrival of HD Ready (720p) and especially Full HD (1080p) resolutions. Suddenly it was absolutely obvious that Harrison Ford hadn’t shaved.

In 2010, a student from Barcelona was looking for an easy way to edit PDFs. 16 years later, it is one of the most viewed websites on the internet

by

From a form to a receipt to an invoice: PDF is the quintessential extension for sharing documents, regardless of whether you do it from a Windows computer to an iPhone or an Android tablet. It doesn’t matter: you’re going to see the original format no matter what. But, oh my friend, if you have to get your hands on a PDF. Marco Grossi also found himself in trouble with a PDF. One, who is already in her years, had to make a living to avoid paying for the Adobe Acrobat license (in the past it was not a subscription and the price was not exactly cheap) to edit a PDF for a cent by the wind: from printing and scanning to wasting time reconstructing with a word processor. In that first decade of the 2000s I was a student who struggled with documents and Marco Grossi, too. Back in 2010, this Barcelonan, who has studied Multimedia and Photography and also programming, found himself faced with a task as mundane as having to copy and paste a PDF: it was not an easy task. How does it count himself for La Vanguardia“I’m a programmer, and I’m good at computer issues, so it took me about 15 minutes to figure it out.” And then came iLovePDF. As the founder and CEO confesses for El Paísat that moment he discovered that there was a need: “I realized that it was very simple and that I could create it myself.” It was not the first (the ancient but reliable PDFSam It had an interface that was backwards), but it was the one that managed to establish itself as the software to manage PDF for normal and ordinary users (although also for companies reluctant to pay, because it solves the basics quickly and well). A meteoric rise. What started as a personal project that he combined with freelance web design, in 2014 became his 100% occupation. Until 2017 he worked alone from home, but at that moment he took a step forward: He rented an office and hired an old college classmate. Now there are 43 people. At that time, his website was already receiving between 200,000 and 300,000 daily visits from organic traffic. In 2025 Grossi counted which were around 150 million unique users per month. The portal ahrefs listed it in 2024 in 34th place on a global scale, above Amazon in India and just below Wikipedia in Russia. Screenshot of iLovePDF from 2018. via Archive.today Good, nice and cheap free. Your philosophy From the beginning it has been to be a free, accessible, high-quality and easy-to-use service. A quick visit to their website gives us a mosaic with icons and clear messages “Join PDFs”, “Split PDFs” and an agile and intuitive step by step to obtain documents with good quality, without limitations or watermarks. We are using iLovePDF in Spanish, but the website is translated into 25 languages ​​so that language is not an obstacle. In 2018 (the oldest capture saved on Archive.today) also. They also do not market with the data: Marco Grossi details that as a European firm they are governed by the GDPR and that all PDFs are deleted within two hours, without anyone being able to access them. In addition, he explains that they have ISO 27001 certification. In the beginning they financed themselves by advertising, but according to their CEO that is very risky. How iLovePDF Makes Money. So since 2014, in addition to the free options, they offer subscription services, so that advertising generates residual income. They are a small company, but they provide service to those people who visit their website, which we have already seen are many. That is why the Barcelona native explains that “we only need a very small percentage of users who pay to finance us.” 80 – 90% of your income they come precisely from its premium subscriptions, aimed at companies. The rest comes from an advertising banner that, my servant who has been using the service for so many years that she does not remember, nor did she remember it. The cost of being premium It is 5 euros per month and access to extras such as digital signatures or getting rid of ads, but it is totally dispensable: its founder details that the free version is enough for 99.9% of those who use us. They are not for sale. Marco Grossi is not a wolf of Wall Street: he himself admits that he never had an entrepreneurial spirit and that he does not open purchase proposals, something similar to the VLC project and that has turned both platforms into memes of saints or heroes on social networks like X/Twitter. Being a self-financed company allows Marco and his team to maintain their philosophy and reject offers. Although its history is meteoric considering its 15 years of life, the CEO speaks of sustained business growth and that they will never hire 200 people in a year to have to close. Their staff turnover is very low, but solid: they want to replicate their model with their counterpart for images, iLoveIMG. In Xataka | In 1990, a company in Barcelona came up with a crazy and visionary idea: talking on your cell phone while you’re stuck in traffic. In Xataka | In 1901, a Spanish man had one of the ideas of the century: invent the remote control before television

We’ve been believing oatmeal is the perfect breakfast for years, but science has a warning: there’s a limit

by

Over the past few years, oatmeal has been crowned the undisputed queen of healthy breakfasts. And you just have to look at the internet a little to see the porridge from Instagram wave cardiologists recommendation to think that we are facing a perfect food without any type of failure. However, everything can have fine print and oatmeal is one of them. Investigating. Even if you eat healthy, there are people who experience abdominal bloating, gas, or general digestive discomfort with oats. And it’s not that oats are bad, but there are chances that we are eating them wrong. This is something you have already researched. to Monash Universitya world leader in digestive health, by putting an exact figure on the table: 52 grams. This is something that also the nutritionist has put on the table Óscar Hurtado who points out that oats are healthy, but they have a very strict “tolerance curve” for some intestines. The reason. The problem with oats is found in the FODMAPs (oligosaccharides, disaccharides, monosaccharides and fermentable polyols). These are nothing more than short chain carbohydrates that the small intestine cannot absorb well, and that is why They continue their ‘journey’ to the large intestine where the bacteria found here rapidly ferment them. producing gas. But not only this, it can drag water causing diarrhea. And this is where Monash University comes in, which has measured the effect that these compounds have on our body. One of its main conclusions It is in that 52 grams of oats (which is half a cup) is the safe amount of fructans for most humans. If we go too far. In the case of passing the barrier of 60-70 grams, the fructan content in the intestine it triggers and begins to cause problems. Something that is of great interest to those who suffer from a digestive problem such as Irritable Bowel Syndrome (IBS)since it would be going from an ‘anti-inflammatory’ breakfast to a trigger for abdominal distension and pain. More studies. This is not a warning from now, but has great support in science. An example is the Halmos pivotal trial that showed that a low-FODMAP diet reduces gastrointestinal symptoms. between 22% and 45% more than usual diets. This was because they reduced the amount of fructans, very present in oats, in the diet they ate. But in addition, a 2022 study also confirmed that portion control of this type of fermentable carbohydrates significantly improved life in patients with IBS. And it wasn’t about eliminating oats from the diet, but about keeping them in a “safe zone.” There is no need to demonize. With these studies, logically we do not have to reach this point with oats, since it has many benefits behind it. The Spanish Heart Foundation and multiple nutritional studies remind us why it rose to the breakfast throne in the first place. And it has the ability to give satiety, which helps with weight control, and also delays the absorption of carbohydrates to prevent insulin spikes that are really harmful to the body. Although it doesn’t stop there, since for people with high cholesterol its high amount of beta-glucans can reduce the “bad” cholesterol known as ‘bad cholesterol’ or LDL. Based on tolerance. The conclusion we can reach is that if you have an iron stomach and a good oatmeal breakfast does not affect it at all, you can continue taking it normally. But in the event that symptoms such as bloating or diarrhea begin to appear, it is better to start lowering the dose to see if this “perfect breakfast” begins to feel good again. In this way, we are left with its beneficial properties without the digestive discomfort that we can hate so much. Images | Dor Farber In Xataka | We have been relying on the Nutri-Score in stores for years. Science believes that its real impact is zero

We know it as “the red planet”, but 3.37 billion years ago Mars was almost as blue as Earth

by

The mystery of Mars and water has a new chapter. The missions like Curiosity in the Gale crater they show clear evidence for the existence of liquid water lakes for thousands or millions of years. That climate models show that the early Mars It was a cold place. with temperatures significantly below the freezing point, it was elucidated with seasonal ice shields. However, among the pending subjects of Mars astronomy is knowing how much there was water and when was there. Mars was (half) blue. A recent study published in the scientific journal npj Space Exploration echoes the discovery of a “tide line” that explains that there was once an interconnected water system. Ignatius Argadestya, the lead author of the study, explains that although today Mars is a dry and reddish planet: “our results show that in the past it was a blue planet similar to Earth.” In fact, they have been able to demonstrate the existence of the deepest and most extensive ocean that has existed on Mars to date, account the scientist that half the red planet was once blue: “an ocean that extended across the planet’s northern hemisphere.” Valles Marineris in Hi-Res The “deltas” of Mars. More specifically, they have investigated geological formations called deposits with steep front located in the region of Valles Marineristhe largest canyon system in the solar system. Using very high resolution images from Cassis of the European Space Agency and the CTX and HiRISE from NASA (the latter provides a maximum resolution of about 25 to 30 centimeters per pixel), have been able to identify these deposits with identical morphology to the river deltas that we see in rivers such as the Ebro or the Danube when they flow into the sea. Thus, on Mars there was a time when water flowed from the mountains through branching channels until it reached a kind of lake or sea, where sediments were deposited. These deltas end in an abrupt step that is located at exactly the same altitude at different points on the planet, between -3750 and -3650 meters with respect to the reference level of Mars. About 3.37 billion years ago. This is not a geological coincidence, it is that at one time there was a body of water like a sea that maintained a stable level for a long time: it is a mark of the shore of a primeval Mars, since these deposits were formed between the Late Hesperian and Early Amazonian periods. According to the research team, that was the time in the history of Mars with the greatest availability of liquid water on its surface. Why is it important. Already had applied previously the existence and size of this Martian ocean, but its conclusions come with more precise and direct evidence. In addition, they have been able to determine when the water peak occurred on Mars. The deltas found constitute a magnificent base to study their sediments in depth in search of traces of life because where there is water, there could be life. On the other hand, among the next steps is to understand how Mars went from having an ocean that occupied half the planet to being a frozen desert. In fact, there are already clues: the research team detected desiccation cracks and dunes on these channels, which indicates that after this aquatic period, there was a progressive drying until they became arid. In Xataka | Mars has just entered the exclusive club of planets with rays. This is discouraging news for NASA. In Xataka | We had been wondering for decades how Mars could have water, cold and life. Today we finally have an answer Cover | Javier Miranda

Global sperm count has been sinking for years

by

There was a time when the movie ‘children of men‘ It seemed like a fairly distant dystopia, but today science forces us to look at it with different eyes due to the great drop in birth rate that we are seeing. Although in principle it could be attributed to social issues such as difficult access to housing or one could even look at women as responsible for this. But it is becoming increasingly clear that human sperm quality is declining. The quality is going down. In this way, it is not that we have fewer children just because we decide to have them later (which too), but that biologically our ability to father them is plummeting. The scientific evidence tells us shows in this case that between 1973 and 2018 total sperm count has fallen by 62.3%. And logically, if men have fewer sperm in general, this leads to a reduced chance of conceiving. Although it does not stop at this data. Studies that have followed men for several years also show that the average sperm concentration has gone from 101 million per ml in the 1970s to just 49 million per ml of ejaculate today. In a generalized way. This is not a phenomenon that is only occurring in Europe or North America, but has also been confirmed by recent studies in Latin America, Asia and Africa that are suffering the same decline. Although the most alarming thing is not the accumulated decline that we are experiencing, but the speed. Specifically, we see that since 2000 the rate of decline has accelerated, exceeding 2.6% annually without any signs of stabilization over time. It’s not just the culture. It is easy to blame the social changes we have experienced to justify the drop in birth rates, such as the delay in couple formation or the economic stress we are experiencing. And it is true that everything influences the birth rate, but it does not explain why semen quality is increasingly worse in our environment. To put it in context, a 30-year-old man today has, on average, half the sperm concentration than the one his grandfather had at the same age. Because. To understand what is happening, there are different scientific reviews that point to lifestyle like an enemy. The obesitysmoking, sedentary lifestyle or diets that have a significant presence of ultra-processed foods They destroy sperm quality. A study published in PMC in 2024 also directly links obesity to oxidative stress and hormonal imbalance to the destruction of sperm quality. But not everything focuses on what we eat, but on what we breathe and touch in our environment. The exposure to microplasticspesticides and endocrine disruptors It is altering male hormonal production that leads to this serious problem. New biological factors. The investigations carried out in 2025 point out two new fronts here to attack in this case. The first is paternal age, since after 35 years of age not only does sperm movement decrease but sperm DNA fragmentation increases, making it of poorer quality. Besides, imbalance in bacteria of semen is behind many cases of infertility that we previously considered “of unknown cause.” If it is true that knowing that the pathogen called Ureaplasma is one of those responsiblecan give rise to personalized treatments. Imminent collapse? The short answer is that we are not facing an apocalyptic scenario where humanity becomes sterile overnight, but the trend is worrying. In the event that sperm concentration continues with this downward trend, a large part of the male population could fall below the threshold of natural fertility, making assisted reproduction cease to be an option and become a structural necessity to perpetuate the species. However, there is a species for the nuance, since a 2025 study in the US suggests that the decline may not be as pronounced in men whose fertility is already confirmed, indicating that the problem could be concentrated in specific subpopulations or closely linked to those environmental factors that we can control. What can we do? The good news is that, unlike other genetic problems, many of these factors are modifiable. The science in this case suggests that adopting the Mediterranean diet, exercising and controlling obesity is a good way to mitigate this decline. Images | freestocks Mohamed Hassan In Xataka | There are couples who couldn’t have children. Now AI has managed to give them hope

the footprint of a turtle stampede from 80 million years ago

by

Sometimes the older ones paleontological discoveries They do not occur in planned excavations and with large studies behind them, but by pure chance in places where no one should be. This is precisely what happened in 2019 on Mount Còrneo in Italy where two climbers entered in a restricted area of ​​the natural park and they came across something that did not fit into the rock: hundreds of strange brands on a vertical wall. We already know what it is. Now, a study published in Cretaceous Research has revealed what those marks really are: the fossil trace of a stampede of sea turtles fleeing in terror from an earthquake that occurred 80 million years ago. The forbidden zone. The discovery is attributed to Luca Natali and Paolo Sandroni, who were climbing a limestone wall in the Scaglia Rossa formation. And what they found was neither more nor less than a canvas of more than 1,000 fingerprints distributed in an area of ​​about 200 square meters. The location where they were found is no less, since it is key and at the same time problematic. As it is a vertical wall, which in the Cretaceous It was a flat seabed, access for scientists was almost impossible. That is why they had to resort to drones to be able to photogrammetrically map the site and study the furrows without risking the life of any researcher. CSI Cretaceous. In order to clarify this discovery, the researchers used the magnetostratigraphythe analysis of magnetic polarity of the rocks, to date the event to the Campanian, about 80 million years ago. The scene. To locate ourselves, 80 million years ago this vertical wall was a deep seabed that It was about 300 meters deepcompletely calm and muddy. But an earthquake shook the area, causing an immediate reaction: a group of sea turtles panicked. And as anyone would do, the reaction was to start swimming frantically towards deeper waters, hitting the bottom with their alerts and leaving those semi-lunar marks. Minutes or hours after the turtles passed, an avalanche of sediment caused by the same earthquake, known as turbiditecovered the footprints instantly, sealing them as if it were an “underwater Pompeii.” Why turtles? The identification of these traces has not been an easy task for the researchers who have had to discard among the possibilities in front of them. At first, other inhabitants of the Cretaceous were considered fish, plesiosaurs or mosasaurs. However, analysis of the furrows told a different story. The first thing to keep in mind is that they couldn’t be fish because the marks had bilateral symmetry. They also could not be plesiosaurs since the pattern of the markings did not fit with the four-fin movement of these reptiles. In this way, for the researchers, the semilunar marks, consistent with turtle fins, left no doubt that it was this marine animal of the time. Healthy skepticism. As is often the case in paleontology, not everyone is 100% convinced. Thus, there are different well-known experts who point out that, although the seismic theory is solid, attributing the marks definitively to the turtles requires more comparative evidencemaking it a rare fossil record in deep pelagic environments. Although what is truly interesting in this case is not the species, but the paradigm shift. Right now, most fossils told us about the death of an animal or its anatomy. But now we have seen how these footprints tell us about their behavior in a moment of terror experienced millions of years ago. Images | Cretaceous Research In Xataka | The skull that changes everything: a million-year-old fossil suggests that ‘Homo sapiens’ did not come from Africa

We have been avoiding aged cheese for years for health reasons. Massive study suggests we were wrong

by

For decades, nutritional guides and specific diets focused on ensuring brain health, such as the famous MIND diethave had a common enemy: saturated fats of dairy origin. However, science has now given a turn of the wheel to show us that we were completely wrong. New evidence. A new and comprehensive study published in the magazine Neurology You just turned this belief upside down. After following almost 28,000 people for a quarter of a century, researchers at Lund University have found a surprising association: regular consumption of high-fat cheese and cream not only does not increase the risk of dementia, but seems to reduce it significantly. The Swedish diet. The researchers conducted a median follow-up of 25 years until 2020, cross-referencing dietary data with the Swedish National Patient Registry. The result was that during this type 3,208 were identified cases of dementiaand from here we began to see what these people ate. In this case, those who consumed 50 grams or more of high-fat cheese per day showed a reduced risk of dementia of between 13% and 19% compared to those who did not consume it. Furthermore, consumption of high-fat cream was associated with a 16% reduction in the risk of having full-blown dementia. But there is more. The most curious thing about the finding was the specificity, since similar benefits were not found in low-fat dairy products, nor in regular milk or butter. In this way, you can see that there is something specific in the nutritional matrix of cheese and fermented cream that plays in favor of our brain. Why this cheese. Emily Sonestedt, co-author of the study, She was surprised by the resultsalthough he points out that they have biological logic. While traditional diets limit cheese due to its calorie and saturated fat content, this food is rich in medium chain fatty acids, vitamin K2calcium and high quality proteins. In addition to all this, the fact that it is a fermented food can positively influence the intestinal microbiota, and we know more and more about the direct connection between the intestine and the brain. In this way, maintaining a good microbiota again indicates that it guarantees us having better brain health. You have to be cautious. Before running to the supermarket to buy all the types of cheese on the shelves, it is necessary to put on the usual handbrake in science, since we are talking about an observational study. This means that science points out that two things happen at the same time, but it does not prove 100% that one causes the other. And in this case, lifestyle may be interfering, such as the fact that people who eat cheese in Sweden have other lifestyle habits such as greater physical activity that protect them, although the researchers tried to adjust the variables. The verdict. The idea that “all saturated fat is bad for the brain” is losing steam in the face of evidence that certain complex foods, such as aged cheese or cream, have properties that go beyond their basic nutritional label. As is often the case in nutrition, the key does not seem to be eliminating food groups, but rather understanding the quality and source of what we eat. Images | Aliona Gumeniuk Robina Weermeijer In Xataka | Forgetting things is not a bug, it is a feature of your brain: how not remembering things makes us think better

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.