valid

“I think it’s the most valid criticism of AI right now, there is a lot of expense”

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The artificial intelligence race is causing large technology companies to squander enormous sums of money to have the best AI, the one that the most people use and, above all, the one that generates the most money (three concepts that are far from the same thing and, rather, let them tell Google). According to Goldman Sachs databig tech and their infrastructure providers have on their roadmap to spend more than a trillion dollars on chips, data centers and software. The million dollar question is: is there a return after that investment? The CEO of OpenAI, one of the companies in the fight and certainly one of the most interested (it does not have the muscle of veterans like Google, Meta or Microsoft), has already recognized it in an interview for CNBC: It is absolutely normal to worry about that spending on AI due to the waste and the uncertainty of when they will get their reward (if it ever arrives). Sam Altman’s statements. Asked about the doubts generated by AI, he responded bluntly that it is “the fairest criticism that can be made of AI at this moment.” And he added: “I know big things are happening, but I know there is a lot of waste.” He also put on the table the two questions that companies that adopt AI in their processes ask: how long do they have to wait for this change to be noticed in their income and how long for costs to be under control. Spoiler: taking into account the latest movements from Uber and Microsofttwo completely successful companies, things are looking bad. The most interesting thing about this display of honesty is where they come from. Altman is the person who has raised the most money for fund OpenAIone of the leading companies in the AI ​​sector but also one of the newcomers, a baby compared to mythical companies that have been dominating the technology for decades. That Altman talks about waste is a before and after in the industry’s discourse. Why is it important. Until now, the ROI of AI has been a concept on the lips of skeptical analysts, economists and people who disbelieve this boom who point directly to a bubble about to burst. But Altman has integrated it into his corporate discourse and that represents a paradigm shift: it is no longer a critical position from outside the sector, it is that the most influential company verbalizes it to users and investors. As we mentioned in the intro, Goldman Sachs already considered this same question back in 2024 with its “Gen AI: Too Much Spend, Too Little Benefit?”. Economist and 2024 Nobel Prize winner Daron Acemoglu of MIT published a study called “The Simple Macroeconomics of AI” where he estimated that the real impact of AI on economic productivity in the next decade would be a paltry (especially if we take into account the speeches and investments) of just 0.5%. Context. That in this phase of expansion and training of AI It is not profitable it is no secretbut this is both an economic and a technical problem. With data in hand, there are reasons to worry. This recent Cast AI report It includes the analysis of 23,000 computing clusters, revealing that the average utilization of GPUs is only 5%. That is, 95% of the most expensive and advanced hardware on the market (those highly sought-after NVIDIA graphics cards) is operating well below its capacity. Part of the explanation lies in FOMO: explains Venture Beat that there are many companies acquiring AI chips not because they need them right now, but out of fear of running out of them in the future. The phenomenon is not new, we already saw it during the pandemic with semiconductors (and on a domestic scale, with toilet paper). There is someone who wins. In this story of companies investing to win the AI ​​race and other companies adopting it to modernize, there is someone who is winning from the first minute: NVIDIA bills the same whether its chips work at 5% or 100%. And he is breaking all his records. In 2024 record revenues of $60.9 billion (126% more than the previous year) thanks to this excessive demand for data centers. The large cloud providers, the holy trinity composed of Amazon, Microsoft and Google (the three occupy 70% of the market, according to Synergy data) bill the same regardless of whether the client is achieving results. According to Synergy Research Groupthe global cloud infrastructure market will exceed $330 billion in 2024. The underlying problem is incentives: those who have the most weight in the pace of investment in AI are precisely those who lose the least, hence no one is taking measures against waste. Yes, but. Making a catastrophic reading of Altman’s statements would be a mistake and in fact, the CEO of OpenAI himself expressed his confidence “the industry will solve it quickly.” After all, in that initial phase it is normal to incur losses and if not, tell Netflix with streaming. Current waste may simply be the cost of setting up infrastructure whose value will be realized later. Even the Goldman Sachs report acknowledges that bubbles take time to burst, meaning there is room for AI to deliver on its promises. Of course, a good part of the current artificial intelligence expenditure is linked to GPUs with specific architectures that could become obsolete in the face of more efficient models or specific architectures. In Xataka | The problem is not spending a lot of tokens, it’s that most of them are being wasted In Xataka | Anthropic has moved ahead of OpenAI in its race to go public. This is very bad news for Sam Altman Cover | TechCrunch (CC BY 2.0) and Giorgio Trovato

What is this app, add your DNIe, as valid as the physical DNI and what you can do or not do

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Starting April 2, 2026 Your DNIe in the MiDNI app is as valid as the physical one. This means that if they ask you for your ID from the Police to a hotel, they are obliged to accept if you show it to them through the app. That makes something that has always been in the background now become important, and that is why we are going to tell you everything you need to know about it. Let’s start with the concepts, telling you what the DNIe and the application MyDNI. We will also tell you how to link your DNI to your mobile with this application, how to change the DNI PIN if you do not remember it when registering it, and we will even remind you of our table on What you can do with MiDNI and what not. What is the digital DNI or DNIe The DNI is the National Identity Document, a card issued by the Spanish Police that serves to prove the identity of Spanish citizens. Our photo and our personal data appear on it. Over time, the DNI has evolved. In 2006, a chip was added, and this version was called Electronic DNI or DNIe, also known as digital DNI. Then, in 2015 came the DNI 3.0, which is the DNIe with NFC technology. Later came the current DNI 4.0, which has the particularity of being able to link the ID to the mobile with the app MyDNI. The DNIe is the name of the most modern versions of the DNIthose versions that already have an integrated chip. Currently, the DNIe is also the one that we can link to the mobile phone with the official application that we have mentioned, created by the Police for this. The DNIe chip allows you to carry out procedures online with a special reader capable of reading the chip. These procedures can range from the Income Tax return to Social Security applications, procedures with the city council or signing documents. It is an online identification method. The chip contains two certificates: Authentication certificate to identify you on websites and services Signature certificate to sign documents with legal validity What is MiDNI MyDNI is the name of the official application to carry your ID on your mobile. Its concept is the same as that of the app myDGTyou can carry an app that not only carries your ID identification, but also serves to carry out various procedures through it. This application allows you to identify yourself with the same validity as the physical document. Come on, it is an official substitute for the physical DNI, and it will help you in those cases where you can forget it. Because let’s be honest, nowadays it’s easier to forget your wallet at home than your cell phone. The app has been created by the Spanish National Policeand it is the only one that has legal validity as a substitute for the DNI. It works by linking the electronic DNI to it, so that you can carry it and show it to identify yourself wherever you want. When you use this application you will connect to the National Police servers to verify the data. With this, you can generate a QR code with which to identify yourself, and which will become invalid after a few minutes so that no one can use it for you. By scanning it, the Police will be able to verify that it is you. Of course, it is not perfect either, and will require you to have an internet connection to be able to function. Therefore, do not blindly trust it and try to also carry your physical ID with you. It is as valid as the physical ID Starting April 2, 2026, The MiDNI app is as valid as presenting the physical DNI. At least to do most of the procedures. Therefore, it doesn’t matter if you leave your wallet at home, if someone asks you for your ID to do a face-to-face transaction, you can show it through this application. However, you must remember that The DNI on your mobile is only equally valid if you use this app. If you show a photo of the document that you have on your cell phone or any other application other than that of the Police, it will not be valid. So be careful, because there are apps with similar names. What you can do with MiDNI What can you do with MiDNI? With this application you can prove your identity in person when you have an Internet connection to use it. It is exactly like identifying yourself with your ID, and not only if the Police ask you to, but also for other things. Here is a table with everything you can do and what you can’t do: What is the ID used for on the mobile? why the ID is not useful on the mobile Prove our identity in person when there is an internet connection. Prove identity in person when there is no internet connection. Establish any type of legal relationship in person. Prove our identity through the internet. Sign deeds before a notary in person. Use it for border crossing as an electronic travel document. Prove our identity in face-to-face procedures in the public administration. Prove our identity in other countries, with or without an internet connection. Carry out in-person administrative procedures in public or private Universities and Teaching Centers. Carry out telematic procedures that require authentication and/or electronic signature. Prove our majority in person. Exercise our right to vote. Open a bank account in person. Formalize insurance of any type in person. Check into a hotel in person. Rent a vehicle in person. Buy tickets or nominative tickets in person that require identification. In-person commercial transactions in which they ask us for a valid DNI or to prove our identity. Carry out access control to buildings in person. Access entertainment venues such as cinemas, theaters or concerts. Parcel collection. Withdrawal … Read more

If we want to eat less, eating more slowly is a valid strategy. In Japan they are investigating how to achieve it

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Losing weight, or maintaining our weight under control is more than solving the simple calorie equation consumed against burned calories. Numerous more or less hidden factors can unbalance this balance, factors ranging from the metabolic to the sociological. The other factors. A Japanese researchers team He has investigated in how factors such as the number of bites, the rhythms we perceive in our environment and gender affect the duration of food. The goal is to eat more slowly to make us easier to have our weight under our control. Slowly. The idea of ​​stopping the rhythm with which we eat to eat less and be able to lose weight is not new but we can find it in guides and recommendations of More than a decade ago. It is not an infallible recipe, but According to expertsaid. The logic behind has to do with how the stomach and other organs of the digestive system transmit information to the brain and how it processes it. This occurs in two ways: first through nerve impulses, and then through the chemical signal that some hormones transmit. Replicating one of the hormonal signals that indicate that food has satiated us is precisely one of the mechanisms for which the consumption of Drugs like Ozempic makes us lose weight. An aid. Now, even when we talk about a “trick” like this, say it is easier than doing so. That is why the new study has analyzed how different factors affect the speed with which we swallow food. And in this, men and women have differentiated guidelines. “While the science of nutrition often deals with the metabolism and absorption of food, and dietary content, there are limited evidence in Japan that eating behavior connects both (points). This intrigue led me to study eating behavior, which involved gender differences,” pointed in a press release Katsumi Iizuka, co -author of the study. 33 participants. To put these ideas to the test, the team responsible for the study He put pizza portions to 33 participants, healthy adults between 20 and 65. They measured the number of bites and the times they already chewed what rhythm. They also used metronomes and headphones to induce more or less accelerated rhythms to check the response of the participants. As expected, the team observed important differences in the habits of men and women: on average these took longer to eat their portion (87 seconds in front of the 63 d them men). They also chewed more (107 times against 80 on average) and took more bites (more than double). Change the rhythm. However, gender was not the only factor that affected eating habit: rhythmic stimuli affected the time required to consume food. A 40 pulse tempo per minute (BPM) markedly elongated the duration of food compared to those who ate without rhythmic stimulation. The details of the study were published In an article In the magazine Nutrients. Facilitating work. Now, there are also reasons why being cautious when generalizing the results of the study. First, we must take into account the limited sample (33 participants). Second, also for the existence of cultural differences between our context and Japanese. These differences both to gastronomic culture and gender differences between men and women and the way in which each society expects to behave when they eat in public. Despite this, the results can help us design strategies to facilitate weight loss that best suits each person, taking into account, for example, their gender. The study can also allow us to know more about how changes in context can help us influence our eating behavior, such as using music with slow tempos to force more leisurely meals. In Xataka | Beyond tobacco: we have just discovered that food can also affect the risk of developing lung cancer Image | Surprising_media

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