reason

If you ask the IAS to choose a number between 1 and 50, they usually choose 27. The reason is very human

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You may want to do the test. Go to Chatgptto Gemini to Claude OA Perplexityand see everyone asking to choose a number between 1 and 50. It is not certain that everyone does it, but there is a high probability that The chosen number is 27. What is happening? Andrej Karpathy asked it months ago, one of the best experts in AI in the world. Actually his initial perception was that “All LLM sound the same“That is, everyone speaks surprisingly and also answers very similarly. Chatbots usually give similar answers in their formulation to our questions if they are factual. That is, if they are based on verifiable facts, such as “what is Rafa Nadal’s age?” The funny thing is that in many cases give the same answer when what we ask is much farther. For example, that they choose a number between 1 and 50. You ask several chatbots, and everyone chooses on 27. What happens here? Karpathy himself I recovered that question A few hours ago with a discovery I had seen In Reddit: Those who had done the test proved that most chatbots answered the same thing: 27. In The answer to his comment in x Many users “Although not all— They showed captures either Shared conversations of different chatbots that had precisely answered with that same number. Coincidence or problem of the IAS? The condemnation of human biases Because? In one of the responses of the chatbots who answered the user, he just asked that to AI. This answered that he had chosen that number because he avoids the ends, because it is beautiful mathematically (the cube of three), and 27 “Give the feeling of being random but human”. And there is one of the keys: the IAS try to answer in a similar way as a human would. An entrepreneur named Chester Zelaya precisely elaborated a theory curious about this phenomenon. For him the models used games theory and try to “win” to guess the number. For this they adopt a binary search strategy that allows building A binary tree. And in the game of guessing that number between 1 and 50, 27 is a starting number that according to him is especially adequate (although not the only one). However, another way of explaining that AI frequently chooses 27. AI models have been trained by humans with human data, and therefore they are full of biases included in these data and used voluntarily or involuntarily by those people. The “7” is an especially frequent number on its own or as a termination, and As explained Another user called Yogi, that human bias is everywhere. “That is why when you ask multiple LLM to choose a” randomly “number, they all respond with confidence 27. Not because it is random, but because it is predictably popular.” Almost 7,000 people chose a number between 1 and 100 in an experiment. And many chose 69, and then 7 and 77. Source: Reddit It is also a very reasonable theory. An experiment carried out years ago on social networks asked people to choose a number between 1 and 100. Of the 6,750 people who responded conclusion was reached that the number that had been chosen most was —Us— on 69. And after him, 7 and 77 were also especially frequent. There are, as always, exceptions to the rule. In my tests I have been able to verify how almost all chatbots chose number 27, but there were one that did not. The same thing happened to many X uuarios, who found that when they asked Grok, the number chosen It was 42. Very appropriate. Image | Xataka with chatgpt In Xataka | The old dream of “resuscitating” your deceased relative is realizing thanks to AI. And there is a whole business behind

Quantum computers threaten encryption technologies. This is the reason why we do not have to panic

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This month is being very exciting for enthusiasts who follow up the current Quantum computers. Xanadu, a young Canadian company founded in 2016, has announced that Plan to have ready before 2030 A quantum computer of one million photonic ulna with error correction. However, it is not the only company that intends to make this milestone come true. IBM plans to make available to its customers in 2029 ‘Starling’its first large -scale quantum computer endowed with the ability to amend your own mistakes. The main problem facing quantum computers in the field of error correction is noise, understood as the disturbances that can alter the internal state of the cubits and introduce calculation errors. In any case, if finally the correction of errors comes to fruition the prototypes of quantum computers that we have currently will leave behind their status of prototypes and allow us to face really significant problems. And presumably Bitcoin encryption and other cryptocurrencies will fall. We are facing a worrying challenge Quantum computer experts have known for several years that quantum computers They will end classical cryptography. That moment came in May 2024. A team of researchers from the University of Shanghai (China) led by Professor Wang Chao used a quantum computer D-Wave for I successfully violate the SPN encryption (Substitation-Permutation Network), which is a cryptographic algorithm that is used to encrypt information. This encryption is the cornerstone of, for example, the AES standard (Advanced Encryption Standard), which is used a lot. These scientists published the result of their research in An interesting article entitled “Public Cryptographic Attack Algorithm based on quantum processing with the advantage of D-Wave”. However, this is not all. And it is that in the middle of May several Google researchers They published an entry In the blog dedicated to the security of this American company in which they support a crucial premise: an integer RSA (Rivest – Shamir – Adleman) of 2,048 bits can factor in less than a week with a quantum computer of less than one million cubits. An RSA integer of 2,048 bits can be factor in less than a week with a quantum computer of less than one million cubits Bitcoin, Ethereum, Solana and the other modern cryptocurrencies use a cryptography technique known as elliptical curve that is more robust, efficient and difficult to break than RSA, but its mathematical foundations are similar to those of the latter encryption algorithm. In fact, according to Google scientists signed by the article that I have mentioned above, if the future quantum computers will cost them less than initially breaking the RSA encryption, the cryptography of elliptical curve will also fall with relative ease. So far we have talked about cryptocurrencies, but it is crucial that we do not overlook that encryption technologies have a fundamental role in our daily lives. In fact, WhatsApp and Telegram use them to encrypt our messages; Banks turn to them to Protect our transactions And every time we buy something on the Internet, it is the encryption that is responsible for protecting our credit card information. These are just some of the applications of this technology. Keith Martin, professor of the Information Security Group at the University of London (England), has published in The conversation An interesting article in which it addresses this topic. And it reminds us of something important: the threat of quantum computers to encryption technologies is very real, but we have no reason to panic because many researchers have been working on the solution to this challenge for several years. In fact, most of the theoretical work is already done. In 2024 the National Institute of Standards and Technology (NIST) of the United States published an initial set of standards that includes a post -mecuantic keys exchange mechanism and several postcuantic digital signature schemes. The work that is already done invites us to anticipate that at the time the relevant quantum computers appear from a cryptographic point of view Technologies will already be ready They will be able to protect our information. And in all likelihood these techniques will also be in the hands of quantum computers, such as Juan José García Ripoll holdsResearcher at the Institute of Fundamental Physics of the Higher Council for Scientific Research (CSIC). Image | IBM More information | The conversation In Xataka | China manufactures quantum computers as if it were life in it. Its best plant is capable of producing eight at the same time

USA says that Huawei will not be able to manufacture more than 200,000 AI chips in 2025. We know what the reason is

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Jeffrey Kessler, Undersecretary of Commerce for Industry and Security of the US Department of Commerce, has done a few hours ago This statement in Congress: “Our evaluation indicates that the production capacity of Chips Ascend de Huawei by 2025 It will be 200,000 units or lessand we anticipate that the majority or all of that production will be delivered to companies within China. “ Besides, Kessler pointed out that “China is investing A lot of money to increase your chips production of artificial intelligence (AI), as well as the capabilities of the GPUs it produces. For this reason it is essential not to have a false sense of security and understand that China is reaching the US rapidly. “These statements express unambiguously how worried the US administration is in the development of China undergoing China in the field of AI. China goes only between three and six months behind the US in AI This is What David Sacks arguesan IA and cryptocurrency expert who exercises as an advisor to the Government of Donald Trump in this area. In addition, it acts as a link between the government and the American technology industry. The White House has clarified the statements of Sacks clarifying that this guru referred to AI models, so that Chinese chips are between one and two years behind their US equivalents. Earlier this week Ren Zhengfei, the founder and general director of Huawei, declared that the GPU Ascend of this Chinese company are still A generation behind of the chips for the US. His reflection is aligned with what the US government defends, but it is important that we do not overlook that Huawei invests more than 25,000 million dollars annually in the development of its hardware for AI, so presumably it will not take long to match the benefits of the GPUs produced by NVIDIA or AMD. Blea performance of integration technologies used by SMIC to produce Huawei GPUs has a very wide margin of improvement In any case, the prediction of Jeffrey Kessler about the production capacity of avant -garde chips for Huawei is sustained on an irrefutable fact: the performance by wafer of the integration technologies used by the Chinese semiconductor manufacturer SMIC (Semiconductor manufacturing international corp) To produce the Huawei GPUs it has a very wide margin. SMIC already has the ability to manufacture 6 Nm integrated circuits, and soon it can also produce 5 Nm semiconductors, but is limited by the performance of the deep ultraviolet lithography equipment (UVP) you have in your possession. It is meritorious that SMIC and Huawei engineers have managed to refine their integrated circuit manufacturing processes what is necessary to be able to produce 5, 6 and 7 nm chips With ASML UVP teams, but a priori it is very unlikely that with these machines they will be able to go beyond the 3 Nm. And it is because the technique of Multiple patterningwhich is what they are using, imposes important limitations. A note: This strategy in broad strokes consists in transferring the pattern to the wafer in several passes with the purpose of increasing the resolution of the lithographic process. His problem is that he usually has an upward impact on the cost of chips and the decline in production capacity. For Huawei it is a big problem not to have the necessary technology to produce avant -garde semiconductors comparable to those who manufacture Intel, TSMC or Samsung, so it is working on the development of its own team of extreme ultraviolet photolithography (UVE). More information | Reuters In Xataka | Nvidia has to deal with the absolute distrust of several US legislators. His plan in China is in danger In Xataka | The US wants to end the chips for the Chinese that are sold abroad. And China knows how to defend oneself

There are already French asking for back the money they paid for their teslas. And the reason has a name and surname

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“Some customers no longer dare or do not want to use their vehicle.” With this phrase summarizes Patrick Klugman, lawyer for a future demand against Tesla in France, the feeling of his represented. A group of Tesla owners accuse the company that its public image has directly affected its vehicles and, of course, themselves. This is what they argue. Enjoy. That is, exactly, what the 10 Tesla owners who plan to denounce the company for the possible damage caused by the damage to the public image … of the company itself can not do with their vehicles. They ensure that Elon Musk’s political approach to the extreme right prevents them from circulating with tranquility, as explained to Le Parisien. Among the future plaintiffs are stories of all kinds. There is the one who says that one day he reached his car and found that he had been vandalized with the graffiti of a swastika. In other cases, they point to moral damage because they are owners who feel “betrayed”, in the words of lawyer Patrick Klugman, who is behind the defense of these consumers. “A Responsible Eco -Ciudadean approach”. Thus, they ensure this dozen owners, who received the company when they were made with one of their vehicles. “It was a 100% electric brand (…) buyers were willing to pay more money for their car to participate in the ecological transition … This vehicle (Tesla) became a sample of commitment,” explains the lawyer. They claim that with Elon Musk’s approach to the extreme right and the brand’s image degradation they cannot have a “peaceful possession” of the vehicle. A detail that is key to the demand that they want to present that, they point out in the middle, it cannot be defined as “collective” for the moment. Despite this, the lawyer encourages every owner who wants to add to the cause to accompany them. What are they based on? As we said, that “peaceful possession” is key. This is collected in the Article 1625 of the Civil Code In France. It specifies: “The guarantee that the seller owes to the buyer has two objects: the first is the peaceful possession of the thing sold; the second, the hidden defects of this thing or the prohibitive vices” To this “peaceful possession” is to which the owners of the Tesla grab ensuring that given the attacks against the vehicles that extended a few months ago and the reputational loss of the company, they do not dare to take the car out to the street or, to do so, they cannot enjoy it with the same conditions that were sold. What do they claim? The ultimate intention of these owners is simply that they return the purchase money or that the loan they maintain with the company is canceled if they are paying the car in installments. Bad image. What is clear is that Elon Musk’s passage through the United States government has seriously damaged the public image of the company. From the protests before your company’s concessionaires to direct attacks against their vehicles. But, above all, the company has seen how its sales have sunk into what we have been for the year. The problem is especially serious in Europe. In its two main markets (Germany and France) their sales are on the floor. Right where issues related to extreme right and the Nazism are more sensitive among public opinion. To this is added the increase in the second -hand market of Tesla cars. Beyond that some influencers have shown publicly How they got rid of their carsIn France the volume of ads selling second -hand Tesla cars shot in the first months of 2025, to the point that increased 30% Regarding the ads published in the first half of 2024. Photo | The White House and Felipe Tofani In Xataka | There is a shopping center that is becoming famous for one thing: Tesla is piling up the cybertruck that does not sell

China conquered us with its cheap drones. Now the price of its pieces is shooting for a reason that is not accidental

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The Chinese market has been the most attractive option to buy drones for years, both for price and variety. From Ultraeconomic models of 30 euros even professional drones such as DJI MAVIC 4 PROfor more than 2,000 euros. The fan is really wide. Now, that successful formula begins to face a new context. Such as collect Financial Timesthe prices of the components from China are rising, in some cases duplicating. Let’s analyze the reasons and scope of this phenomenon. The scenario has changed. More and more suppliers operating in China are raising their prices for international clients. They do, according to the aforementioned British newspaper, in response to the reinforcement of the export controls that Beijing is applying on “sensitive components.” The aforementioned changes occur in a global context where the United States and China are immersed in a commercial war marked by ups and downs. Although in recent months Some offensives have softeneduncertainty still persists how the next steps will be. Key components in the spotlight. Among the elements most affected by these restrictions are Thermographic cameras. These cameras allow to detect temperature differences and generate images in low visibility conditions, such as night, fog or smoke. Image captured by a drone with thermographic chamber They are used both in civil applications (such as rescue work or industrial inspection), but also in military environments. This last use could be behind the increase in controls and increase in exports, since these cameras allow surveillance tasks in adverse conditions. A strategy that reminds the US. Although the hardening of controls from Beijing may seem a sudden response, it is not an isolated or new movement in the global context. USA It has been restricted for years China’s access to certain products for “national security.” Here we find The well -known case of Huawei. In 2019, Donald Trump’s administration imposed a prohibition that forced US companies to request licenses to offer some technology to the Asian manufacturer, a measure that would be maintained during Joe Biden’s mandate. Drones in front of war. One of the reasons behind Chinese controls is precisely the military use of these devices. Certainly, in recent years we have seen how consumer drones have become an essential part of the military arsenal in conflicts such as Russia and Ukraine. The Ukrainian attack with Hundreds of drone drones on Russian basesor the massive production of low -cost explosive drones, they have made it clear that there is no border between the civil and the military. Possibly this also explains why China wants to control who sells what. Europe and the US try to react. Both Europe and the United States are reacting to Chinese domain. In the American case, associations like Auvsi They have claimed Fiscal incentives and loans to facilitate the transition to local drones, especially in security forces and public services. There have also been more forceful movements, such as the decision of the United States Department of Defense to include DJI in its list of “Chinese military companies.” This classification led to the manufacturer To start a legal battle with the aim of revoking said label. In the European case, the answer is taking shape through initiatives such as the program Eurodronea joint development between France, Germany, Spain and Italy that seeks to reduce the dependence of non -European manufacturers. There are also other programs, such as European Defense Fund. And what does this affect us? For now, what seems clear is that access to pieces from China is no longer as easy or as cheap as before. Restrictions and controls are making key components more expensive, something that some buyers already notice throughout the planet. We will have to wait to see if this trend ends also affecting the price of the drones that we use on a day -to -day basis (those we buy online or in stores), but everything indicates that the market, as we knew it, is starting to change. Images | DJI | J. Weisner | ABODI VESAKARAN | Guillaume Issaly In Xataka | Huawei was the first great victim of the commercial war initiated by the US. Today is at the head of mobiles

Naples Airport has rejected a Boeing 787 with 200 passengers on board for a single reason: two meters long

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Two meters. Not one more, not one less. Those have been the culprit that Naples airport had to reject a flight with origin in Philadelphia. Everything seemed to work without shocks on the morning of June 3. Until the passengers who had to land in Naples received the unpleasant surprise that they would land in Rome. The reason: the plane was too big for the airport. Six meters. That is the distance that differentiates a Boeing 787-8 from a Boeing 787-9. Both They are part of the Dreamliner family (which is also part of the Boeing 787-10) and are common on transatlantic flights since their autonomy widely exceeds 10,000 kilometers and have more than 200 places for passengers. The size in all cases is 60 meters but its length grows as the last name number increases. Thus, the Boeing 787-8 measures 57 meters long but the 787-9 already extends to 63 meters long. The 787-10 reaches 68 meters long. A small (big) difference. Those six meters long suppose a problem that is called 8 RFFS category airport (Rescue and Fire Fighting Services, for its acronym in English). This name refers to the aircraft that an airport can manage, according to the emergency and fire extinction services that it has at your disposal. In this case, the 8 RFFS category allows aircraft to be operated with a maximum size of 61 meters long. That is, it can handle the Boeing 787-8 but not the Boeing 787-9, which exceeds in two meters the dimensions established by the ICAO (International Civil Aviation Organization). In order to manage the landing of a Boeing 787-9 it is necessary for the airport to have a 9 RFFS category where airplanes are allowed to land up to 76 meters long. Better to Rome. This scenario did not contemplate in American Airlines when they decided that, for operational reasons, a Boeing 787-9 had to operate the Philadelphia-Naples route that the airline keeps open. Usually, this journey is made by a Boeing 787-8 (smaller) since They open the route last summer. In fact, in the press release of the Naples airport it is specified that the plane used will be the smallest of the Dreamliner line. But, as we said, last week American Airlines decided to send Naples a Boeing 787-9. When the plane It was 70 miles of his destiny he had to turn around and deviate to Rome. The problem was evident, from Naples they reported that they could not host the flight because their category prevents it. The plane was too big. Specifically, the two meters that exceeds an airport with 8 RFFS category can operate it. By bus. They explain in Business Insider that passengers had to cover the distance between both airports by bus, on a trip that took them from two to three hours, or by plane, in Routes operated by Ita Airways. The company apologized and alleged the American media that “operational limitations” had occurred that had prevented the plane in southern Italy. In CBS They point out that 231 passengers and 11 crew members who received, for any response from the company “apologies for the interruption of the trip” were traveling on board the aircraft, in a statement rescued by the media. Photo | Dominic Bieri and Flightware In Xataka |

The philosophical reason why Ed Sheeran put his mobile in a drawer and forgot about him

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One of the main objectives of social networks and infinity scroll It is to ensure that users remain as much time as possible on their platforms, and they have really succeeded. The attention we dedicate To slide the screen already rivals the time we spend looking beyond 40 cm that, most likely, separate you from your smartphone at this time. The singer Ed Sheeran He went Yesterday as guest at ‘The revolt ‘ of RTVE. During the interview he surprised Broncano himself revealing that I had no mobile. Confession could sound as an extravagance more than one superstar of music that can allow an assistant to manage his calls and social profiles. However, their arguments were much more philosophical and consistent with the Hyperconnection times That we have to live. It is not being disconnected, it is to reconnect again During his interview, the British singer acknowledged that he has no smartphone, but he remains communicated by responding, attending to Instagram and even making voice calls Through facetime. However, instead of using a smartphone that can always carry in your pocket, Sheeran Use an iPad. “That way, people do not expect an instant response, but if they really need you, they can call you for facetime. With the iPad you can do everything,” said the singer. However, the tablet format It does not allow you to always carry it on topas the smartphone allows. In this way, he prevents his hands instinctively from instinctively getting his pocket every time a dead time space arises. “I realized that when I went out with my wife and got up to the bathroom, I took her mobile instantly. But I think getting bored is good for the brain because you start thinking about things,” Sheeran said. The superstar of music recognized that, most likely, I would not have written many of his songs If he had had a mobile because, he simply got bored and his brain found enough space to launch his creative capacity. Sheeran concluded by ensuring that “being boring is the best for your creativity, because your brain starts thinking. If you are always with something, you can’t create.” With this simple explanation, the singer materialized on stage the arguments of the book ‘The society of fatigue’from the South Korean philosopher and writer by-Chul Han, recently prize with the Princess of Asturias of Communication and Humanities. Doing nothing is very complicated In ‘The society of fatigue’They have claimed contemplative life as a way to reconnect with the essence of what makes us humans, pointing to the Constant demand for attention that smartphones claim as the main enemy of mental calmhappiness and creativity. In his book, the philosopher ensures that the constant bombardment of stimuli To which we submit to our brains, it prevents it from stopping to unite the points that connect abstract ideas and knowledge, limiting our ability to create and solve problems. Beyond the philosophical approaches on the overexposure to dopamine that provide the social networks and the use of smartphonescience is also put on the side of Ed Sheeran and Byung-Chul Han: boring awakens creativity of the brain. An investigation from the Northwestern University in the US, simply do nothing or perform monotonous and repetitive tasks that induce a mental state similar to trance, How to scrub dishes or fold socks, allow the brain to enter “diffuse thought” mode. This state allows the connections between ideas to be carried out without the pressure of attending external stimuli. The scientific evidence has recorded that boredom is perceived as a negative sensationas if doing nothing outside of being an unproductive person or without ambition to improve. The researchers They detected that these negative emotions generate states of mental anxiety when the first glimpses of inactivity appear, inciting us to fill that void With content. The mobile is always at hand to fulfill that mission. Assume that Boring is not negative and limit overestimulation are the first steps to allow the brain Take a small vacation and begin to “play” at the subconscious level. The results do not take to appear in the form of Bright ideas while showering or simply when You allow the brain to wander With the losing gaze in infinity. Paradoxically, the best way to be productive and reduce stress will be get nothing. In Xataka | “Doing nothing” is a great technique to improve your productivity. Neuroscience is clear Image | RTVE, Unspash (Ben Collins, Vitolda Klein)

There is a reason why the most successful technological ones are not limited to what they know: the ‘antilibrary’

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Telefónica Perfect your telecommunications manuals. Huawei Build autonomous driving systems. Nokia dominated each protocol of mobile telephony when Apple redefined what should be a phone. They are opposed philosophies about the relationship between knowledge and power. The concept of ‘Antilibrary‘coined by Taleb – noticeable not acquired – is the secret of companies that not only want to register in the future, but to build it. Although ‘anti -librería’ or ‘anti -library’ could be literal translations, ‘reverse library’ is closer to its description. They are the companies that Curiosity have institutionalized as a central discipline. Bytedance never had experts in recommendation algorithms, had an infrastructure to hold questions about human behavior patterns that no one else considered relevant. Tiktok was born from that sustained question for years. Of an organization designed to explore hypotheses that seemed irrelevant. Today Tiktok is worth between 100,000 and 400,000 million dollarsproduct of productive ignorance made system. Huawei is an extreme example of this philosophy. Your 2024 report It is not a catalog of dominated markets, but an inventory of unexplored territories. Each division – Chips Asce, cloud solutions, 5g infrastructure, Harmonyos– It is designed to colonize spaces that still do not exist, not only to defend known positions. Huawei operates from A mentality that considers each market an experimental laboratory in which to grow questions: What happens when connectivity becomes invisible? How does experience change when hardware and software are designed as a unified ecosystem? What markets appear by merging telecommunications and ia? Amazon monetized his internal infrastructure (AWS), converted trade into entertainment (prime video), endowed voice homes (Alexa). His Antilibrary –Hipothesis not proven – is its innovation engine. McDonald’s improved the experience avoiding tails with kiosks, the wait with internal geolocation through Beaconsreimagined restoration as a digital interface. Burger King perfects hamburgers but McDonald’s rediseña experiences. Another contrast: Mercadona has perfected food distribution until it becomes crafts And thanks to this he is an absolute leader, but he has never wondered what more he could distribute. It is maximum specialization, total efficiency, but not reinvention. Technology has invested the equation: Deep knowledge before was an asset but now it is a liability because the specializations expire in months. Institutionalizing productive ignorance is a way to ensure a better future. Goal can lose virtual reality, Apple can be left behind in ia and Google can see how they move in searches. But companies designed around systematic curiosity can pivot towards territories that still have no name. The future belongs to those who collect better questions. The answers expire, the questions evolve In Xataka | Four AI companies are monopolizing the intellectual future of humanity. They are not good news Outstanding image | Pl in Unspash

Ten years ago, we were happy with microSD cards on mobile phones. The manufacturers have killed them for a good reason

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Far was that time when buying a MicroSD card It was practically an essential for our mobile phone. The mobiles from ten years ago They came with a scarce internal memory (8, 16 GB), insufficient for devices that, despite their limitations at the hardware level, recorded Full HD video and had an ecosystem rich in applications. Today, it is increasingly difficult to find devices compatible with this memory expansion. And, yes, this is good news. The golden age of the microSD. There was a time in using an SD was the best possible option on an Android mobile. In fact, the operating system itself allowed to move some of the apps to external memories, releasing the local memory of this load. In 2010, Android 2.2 Froyo He had this option as a native from the adjustments, something that remained immovable until years later. The key was that Android was a much more insecure system than is now. In fact, with Android 6.0 It was possible to expand system storage using microSD cards. The party is over. There are two milestones that mark the progressive disappearance of MicroSD cards on Android. The first is the Popularization of Unibody mobiles: The end of the removable housings. The extra groove to incorporate the SD next to the SIM (or double SIM) hinders stagnant designs, somewhat incompatible with the Current IP protocols They protect the water and dust device. The second reason is imposed by Google with Android, and that is that the operating system was progressively restricting the permissions until they prevent them from moving apps to the SD, limiting it only to the passage of files. Reading speed. As internal memory modules have been improving progressively, reading and writing speed has shot in recent years. A UHS-1 micro SD around 200 MB/s reading speed (speeds that are never reached). EMMC’s most modern standards (slower technology in internal memories, only used in low range) can double this figure. If we talk about UFS memories, standards such as UFS 2.2 around real writing speeds close to GB, something that doubles with UFS 3.1 and almost quadruplica with UFS 4.0. Next to nothing. The size of the apps has increased considerably in recent years, as well as their requirements, and moving them from an SD is not too realistic. The focus on security. By default, the memory of any commercialized Android mobile comes encrypted, something that protects the local data of the device. SD memories do not come with this protection layer, nor do they meet the requirements to do so. Android is an increasingly sure system And, according to the latest data, it is exposed to 90% less malware than in 2016 thanks to the Play Protect scanguaranteed windows of security patches, Automatic reset and constant purge of fraudulent applications in Play Storeamong others. The microSD today. Although relegated in general terms to low -cost mobiles, The MicroSD continues to give a dummy In 2025. If your mobile has support for them, you can continue moving simple apps such as Telegram or Instagram (giants such as WhatsApp do not allow it), and even some games allow you to send part of your reading data to the SD. The same goes for multimedia: nothing prevents us from saving and reproducing content from a microSD card externally. The limitation of speed and stability (if you use a low quality microSD) will be present, but the function has not died at all. A necessary evil. Smartphones manufacturers and Google itself have been closing the door to microSD cards. It is a evil necessary to improve the stability of the system, to make Android a safer platform and continue allowing the apps to grow (in size and requirements) to the frantic rhythm to which hardware evolves. Image | Samsung In Xataka | It is 2024 and I still use an SD card on my mobile: what can I do and what is different about the storage of my phone

Mercadona has fired its benefits but has also closed stores for the first time in years. The reason: the “stores 8”

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For the first time in decades, Mercadona reduced its physical network while firing benefits 37% to 1,384 million euros. No other Spanish chain approaches that figure. The paradox has a name: “Stores 8”, a format that can double profitability but forces to close establishments incompatible with it. What is happening. The chain went from 1,681 stores in 2023 to 1,674 in 2024, closing 49 establishments compared to 42 openings. It is not crisis: it is strategy. “8” stores “need spaces of 1,500 square meters to be efficient, impossible in much smaller stores, why they will work decades ago. “We are a assembly chain and the less variability it has, the better it works,” said Juan Roig in the presentation of 2024 results, according to Valencia Plaza. A well -located store 8 absorbs customers from several nearby small stores, concentrating traffic at more profitable points. It is a calculated cannibalization. In figures: 1,431 stores already function as store 8 (85.5% of the total). 10,000 million invested in 7 years of transformation. 3.88% record marginup to foreign chains such as Walmart (2.88%) or Costco (2.95%). 419 million allocated in 2024 only to adapt stores to the new model. The context. “8” stores “are diaphanous spaces with large corridors, advanced technology and new sections such as” ready to eat. ” They reduce energy consumption by 40% and improve purchase experience, but demand specific locations with good accesses and parking. Roig admits to make “frequently unpopular decisions” closing stores due to “small size, access problems or lack of profitability.” The model prioritizes operational uniformity over territorial capillarity: better few perfect stores than many mediocre. Yes, but. Nor are they “perfect stores.” Roig himself says it And his own name says: they are called that because “to get to 10 they must still incorporate new elements and services demanded by customers.” Deepen. Mercadona is changing its commercial map by store. The objective is to complete the 100% transformation in 2026, sacrificing less efficient establishments to concentrate investment in Premium locations. Operational perfection has become its competitive advantage, even if that means leaving some neighborhoods without a merchant as hand as before. Outstanding image | Mercadona In Xataka | Juan Roig believes that cooking at home has no future. There are eight million Spaniards who are already giving the right

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