One fine day Richard Feynman left a restaurant. 50 years later we already know why better known bad than good unknown

In the late 1970s, the brilliant physicist Richard Feynman He went with his friend Ralph Leighton to eat at a Thai place named Indra in Glendale, California. Looking at the restaurant’s menu, Leighton couldn’t decide: should he order his usual favorite, ginger chicken, or try something new and perhaps better? Any other person would have responded in one way or another (“if you like it so much, you better insure” or something like “he who does not risk does not gain”). Richard Feynman, brilliant as he is, did something else: He started scribbling equations on a napkin. and he turned that into a mathematical problem that he not only detected, but solved. For some reason, the prodigious physicist never published that analysis, and his notes were left to Leighton. For years that story was forgotten, but 50 years later researchers from the universities of Oxford, New York and Princeton managed to rescue those notes and Feynman’s solution. And what that revealed was surprising. Rescuing Feynman’s restaurant problem The researchers explained in their study, published in PNAS (Proceedings of the National Academy of Sciences) that although Feynman had focused on what happened to the different dishes in the same restaurant, they They preferred to expand the problem: what happens when we are in city X, for example, on vacation, and we want to choose a restaurant. Richard Feynman’s handwritten notes on a restaurant napkin turned out to be a fascinating problem. Source: PNAS. Feynman’s restaurant problem is actually a variant of what is known as the optimal stopping problemto which also belongs the famous variant of secretary problemwhich gave rise to the 37% rule: When choosing from 100 options, one should try the first 37 to maximize the chances of choosing the best one. Then you can “settle” for that one, because it is difficult for there to be a better one among the rest. But we are digressing. Feynman’s original mathematical formula established an optimal policy based on a uniform distribution of quality. According to the physicist’s formulation, our quality bar is not static nor falls by chance, but decreases exponentially as the days available in our vacation calendar are exhausted. Thus, it usually happens that when we are at the beginning of our vacation, We usually demand absolute perfection in the chosen restaurant because the remaining time allows the risk to be amortized. In the end, however, that threshold of demand collapses and we settle for a decent restaurant. We move from the exploration phase – taking risks with new places (or dishes) – to exploitation – repeating places (or dishes) that we liked. The researchers wanted to test this mathematical model with a sample of 2,520 participants, and in doing so they detected a striking anomaly. During the first nights in a new city, participants explored massively, much more than mathematical logic itself advised. The researchers discovered that this phenomenon responded to the so-called “early exploration bonus” that fell rapidly as the days went by: if we have an opportunity to “get it right,” our brain shows tremendous psychological resistance to tying itself to a restaurant at the first opportunity. We prefer to continue trying other restaurants because we trust that we will find a better one. The four “gastronomic worlds” of the study: the behavior of the participants varied according to each distribution. Source: PNAS. But as the experiment went on, something else was discovered. Humans are not blind robots, but we calibrate the bar according to the city we visit. The experiment placed participants in four different “food worlds” in which the ratio of excellent restaurants to mediocre (or decent) ones varied. The data showed that the human brain is capable of diagnosing the type of “food world” it finds itself in just by trying three or four restaurants. From there, set the bar. Feynman mathematically intuited that the bar would lower exponentially as the return date approached, but the experiment revealed something different. Human beings reduce our level of demand linearly with respect to the proportion of days we have left on vacation. We are becoming less and less demanding and more “nostalgic”. This guarantees something important: that at least on the last nights we enjoy the “better bad known than good not known”, because that “bad known” will not be so bad after all: we have already experienced it. Fascinating. Image | SAP (edited with Magnific) In Xataka | Studying by heart seems like a good idea until you forget it. The Feynman method appeals to your understanding, not your memory.

“Entire boxes are bought, there is a lack of product and we are producing 24 hours a day”

“I’m the typical nostalgic millennial, I admit that.” This is how our colleague Laura Sacristán of Xataka Mobile the article in which he narrates his experience completing the World Cup sticker album… digitally. It is a phrase that could summarize the entire text that is to come. And if one feels like Don Quixote in front of the windmills when trying to complete the Panini World Cup album. The one that the company has launched with the punctuality of someone who knows they have a good business on their hands. Among the strength of the world fifespeculation and the feeling of nostalgia, one buys the album assuming that it will be almost impossible to complete it. Working piecework But it doesn’t seem enough. “It had never started this way, especially in Spain and Portugal. In Brazil it has always been crazy, but, this year, there is a lack of product and we are producing 24 hours a day. We did not expect it” The statements are from Lluís Torrent, general director of Panini in Spain, to elDiario.eswho accepts that there is a shortage of stock in the stickers that our country demands. And the company claims that it had not seen the same fever for World Cup cards in our country as this year. Although the public is loyal to each year’s album, the World Cups have something special and that can also be seen in the results account by adding more followers. “There are adults who have reengaged. There is hunger and whole boxes are bought“, explains Torrent to the digital media. And our colleague confirms it. If she has made the leap to digital it is for a very simple reason: desperation. “They are sold out everywhere” is the answer she has heard the most in recent days. Fed up, she has forgotten the physical card. “The cards also serve as a socialization tool, you have to know how to organize them, exchange them, “They have a positive aspect of coexistence and sociability,” says Torrent. The problem is when the speculator takes over that “positive aspect of coexistence and sociability.” To both Laura Sacristán, Torrent, and everyone who approaches a kiosk, those who run them give the same answer: “people take away whole boxes.” The shortage remains in the market three weeks after this report from The Newspaper. The person who spoke then was Narayan, head of a kiosk in Sant Cugat del Vallés, stating that even they themselves have had larger orders rejected for their points of sale. More than 600 kilometers further away, in the Puerta Cerrada square in the heart of Madrid, another kiosk gives the same answer to some children who are trying to quench their thirst for stickers. Children who can go look for the ones that interest them most just a few hundred meters away. In the lower part of the Rastro, the fans They meet every Sunday to exchange the repeated stickers and complete the collection. Or buy them. Because the truth is that there is no shortage of those who resell the most sought-after stickers. On digital buying and selling portals it is not difficult to find individual trading cards for 30 euros (the equivalent of 20 sealed envelopes). if we talk about Cristiano Ronaldo either Messi. For an “extra sticker”, the stickers premium that Panini has launched along with the standard collection with another 80 prints, individual prices start at 50 euros and in some they reach 150 euros. Despite everything, Torrent defends that there is the same probability of an envelope containing the Lamine Yamal sticker as it is of JK Duverne, the Haitian defender who plays for the Belgian team KAA Gent. This World Cup, furthermore, is of special interest for collectors because everything indicates, if no one can remedy it, that it will be the last for Messi, Cristiano Ronaldo and Neymar. But also, the collection is broader than ever because more teams than ever play in the World Cup. The result: 980 cards that represent the players of the 48 teams that complete the tournament this time. A figure never seen in Panini’s World Cup album and that falls like May water on the Italian company that this year will bill more than 100 million euros in Spain. A tiny part of the global result that is estimated at 1,400 million euros in this edition, they point out in Seville newspaper. An empire built on two factories, one in Italy and the other in Brazil. An empire built on childhood anxiety, hunger accumulated during the four years of the World Cup cycle and, above all, the nostalgic thirst that seems insatiable among the millennial generation. Photo | Panini and FIFA In Xataka | We are in 2026, but you will only see part of the World Cup in 4K. The “shitification” of the platforms gives us back DTT

We will run out of space on dry land one day. So Spain is already putting solar panels into the sea

Filling the field with solar panels has a physical limit. It is very likely that, while reading this, you have heard the debate that in our landscapes there are beginning to be more panels than crops. Faced with this growing land saturation, the alternative is already floating in the water: The San Enrique de Vigo Shipyard has just launched the first floating marine solar platform with purely Spanish technology. Named “Paiporta”—a tribute to the victims of the deadly DANA in Valencia in October 2024—this pioneering modular structure marks an industrial milestone. Its destiny is not to stay in the Galician estuary, but to be towed in the coming weeks to the Valencian coast to undergo its final test: validate its operability and generate electricity in the open sea. The sea as a technological ally. The saline and hostile environment of the sea offers conditions that multiply the efficiency of the panels. Traditional solar panels lose efficiency when they reach high temperatures. However, in these floating installations, seawater acts as a powerful natural coolant. By heating up less, the panels perform more and are capable of producing more electricity than their twins installed on the ground or on roofs. Added to this cooling effect is an intelligent design decision. Those responsible for the project They detail that the panels installed on the platform they use bifacial technology. This means that the installation not only absorbs direct solar radiation falling from the sky, but is also capable of capturing and generating energy from light bouncing off the sea surface. In the near future, they are expected to operate jointly with offshore wind farms (offshore), sharing evacuation infrastructure and maximizing the amount of clean energy that can be extracted from the same ocean coordinate. Mass-produced photovoltaic catamarans. The “how” is as important as the “what.” PV-bos (PhotoVoltaic-BlueNewables Offshore Solutions) technology has not been conceived to create unique and artisanal prototypes, but to revolutionize the assembly line. The project – called Renovar – pursues the development of platforms manufactured through industrialized and modular processes, directly inspired by mass manufacturing models. The objective is clear: reduce costs, cut production times and make photovoltaics offshore be competitive at a global level. To achieve this, the technological solution is based on an innovative catamaran-type design, specifically optimized to withstand harsh ocean conditions. This format allows the plates to be raised to a safe height above sea level, which not only improves energy performance, but also greatly facilitates maintenance work. The overall project contemplates a floating system of one megawatt of total power, divided into two PV-bos units of five hundred kilowatts each. Bringing this steel and silicon giant to the water was no easy task. From BlueNewables They explain that the launching It required a complex tandem lifting maneuver, using the emblematic and colossal cranes of the Vigo shipyard to place the structure with millimeter precision on the estuary. The industrial muscle. Behind this technological advance there is a powerful business and institutional alliance. The initiative combines the vast experience in marine structures of Astilleros San Enrique (belonging to the Meridional Group), the technological specialization of the Canarian engineering BlueNewables, and the technical collaboration of Soermar (Society for the Study of Maritime Resources). In addition, the project has the strong financial support of the Ministry of Industry and Tourism, and the Institute for Energy Diversification and Saving (IDAE) through its RENMARINAS program. On the other hand, it is a breath of fresh air and an opportunity for reinvention for the naval industry. José Luis Torres, general director of the San Enrique Shipyard, emphasizes that this success demonstrates the capacity of the traditional Spanish naval sector to lead cutting-edge developments. Far from remaining anchored in the construction of conventional ships, shipyards demonstrate that they can compete at the highest international level in the new markets opened by the energy transition. Next station: open sea. With the “Paiporta” now afloat, the Spanish industry sends a clear message to the world. In the words of Bernardino Couñagoco-founder and CEO of BlueNewables, this launch places his company “among the world leaders in the marine floating solar sector” and clearly demonstrates the enormous “industrial and technological capabilities that exist in Galicia and Spain to lead innovative energy solutions at an international level.” But the work is not finished. This successful maneuver in Vigo is just a decisive step. Now, the platform leaves behind the safety of the manufacturing phase in the shipyard to head towards the final stages: commissioning, connection and monitoring. When the “Paiporta” reaches the coasts of Valencia, it will have to demonstrate that the engineers’ mathematics can withstand the onslaught of waves and salt. The limit of the earth has already been surpassed; Now it’s time to conquer the horizon. Image | Bluenewables Xataka | Many towns oppose wind farms. In Euskadi they want to solve it the hard way: giving them 7% of their profits

Amazon Prime Day returns in Spain with confirmed dates and benefits

Amazon announced weeks ago that during this month of June that we have just begun, a new edition of its Prime Day: several days full of bargains, exclusive for Prime members, with which we can save a pinch on technology, home, video games and much more. But it was not until today, June 2, when has confirmed the final dates. Amazon Prime – annual subscription The price could vary. We earn commission from these links Amazon’s Prime Day 2026 arrives at the end of June with four days of offers Specifically, will take place between the 23rd and 26th of this month June. That is to say: it will kick off at midnight from Monday the 22nd to Tuesday the 23rd and will last for four full days, ending at 11:59 p.m. on Friday, June 26. We therefore have four days ahead of us to take advantage of the thousands of offers that Amazon will launch, compared to two days in previous editions. That is to say, double the time to save us a pinchFor example, in that cheap television that we had been thinking about buying for some time to watch the soccer World Cup. Or in that phone with which to replace our old mobile phone and much, much more. Furthermore, another change that we see this year compared to previous editions of this summer Prime Day is the chosen month. In this sense, the usual thing in recent years was for it to take place in July, but This time it will be done in June. Right now, in fact: exactly, in three weeks. An exclusive campaign for Prime members Like the dates of this Prime Day, Amazon has also announced that It is an exclusive sales campaign for its Prime members. Contrary to what happens with the Spring Sale Festival a few weeks ago or the Black Friday November, whose bargains are accessible to any type of user. So, how to take advantage of the sales this Prime Day if we are not subscribed? Very easy: just enjoy the free trial that Amazon offers for new registrations, which not only opens the doors of Prime Day to us but also allows us to save the cost of shipping, access a wide catalog of movies, series and documentaries through Prime Video and more for thirty days. Amazon Prime – 30 days free trial The price could vary. We earn commission from these links Once we are Prime members, we will be able to access the Prime Day offers which, as in previous years, will have guaranteed discounts on Amazon devices (Kindle, Echo, fire tv…). And also in brands such as Braun, Puma, Samsung and Philips, among othersas they have already confirmed. More offers, now available on AliExpress In case we don’t want to wait until then, right now we have another very powerful one available. AliExpress sales campaign. From yesterday until next June 10, we found bargains in nintendo switch 2, PlayStation 5 Pro, garmin watches, Xiaomi’s best-selling phones and much more in their Summer Promo. Some Amazon deals that you can now take advantage of XIAOMI REDMI Note 15 Pro 5G The price could vary. We earn commission from these links Midea Portasplit Portable Air Conditioner 4 in 1 | 3000 frigories The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | amazon In Xataka | The best mobile phones, we have tested them and here are their analyzes In Xataka | Which smart air conditioner to buy. How to choose a connected air conditioning system and featured models

Walking 20 minutes a day after age 55 is very good. The secret of healthy maturity is to do it much earlier

An increasingly repeated idea is that, to have a quality retirementyou have to keep moving throughout maturity and with adequate physical activity. The problem is that many times people wait until they are 55 years old to start taking care of themselves and in many cases because they already have a metabolic disease. And this should make us aware that the sooner we start taking care of ourselves, the better. Walk It has been crowned as the star exercise for older adults, and the scientific evidence that supports it is overwhelming. A study from the year 2023 points out that walking 30 minutes a day for 5 days a week reduces the risk of age-related diseases, although it is especially emphasized that it must be done at a high speed and that requires some effort for the body and not as a simple walk. If this is done, we will be significantly reducing the risk of suffering from cardiovascular diseases and type 2 diabetes, but also protects against dementia. And if that were not enough, a review conducted this year with 180,000 participants demonstrated an 18% to 30% reduction in mortality from all causes with moderate levels of physical activity. In figures. It’s not that Olympic records need to be broken, but simply taking 5,694 steps a day is associated with a 13% lower risk of mortality from all causes. And as we have said before, if it is done a speed high, a greater benefit is achieved. When to start. If the benefits in middle age are so incredible, why does science demand that we start much earlier? The answer lies in sarcopenia, which is the process of loss of muscle mass that we face when we begin to age without doing any type of strength exercise. And that is why the deadline of 30 years is set to begin to remedy it. Because? From this age onwards, it has been seen that between 3% and 5% of muscle mass is lost per decade. according to the NIHand other studies suggest that this figure can be between 3% and 8% per decade after age 30. AND from 60 years old the rate of decline becomes even greater. With all this information, it is estimated that right now between 10% and 20% of older adults suffer from sarcopenia, and lack of exercise is the main factor that worsens this progressive muscle loss. The recipe. The WHO here is very clear in its guidelines and, curiously, it does not make reductions upon reaching retirement, so it does not understand a specific age from which you must exercise no matter what, but rather it points out that you should always do it. That is why their recommendations are exactly the same for adults from 18 to 64 years old as for those over 65 years old: relativize. Between 150 and 300 minutes a week of moderate aerobic activity (such as walking), or between 75 and 150 minutes of vigorous intensity. Furthermore, the WHO asks to incorporate muscle group strengthening exercises at least two days a week for all adults. In the specific case of adults over 65 years of age, the only difference is that activities that improve balance must be added to the general recommendations three or more days per week to avoid fatal falls. Images | Emma Simpson In Xataka | There’s a reason why working out for an hour a day at the gym doesn’t give you results. And that reason is evolution In Trends | The trainers agree: “From the age of 55, you should walk every day for at least 20 minutes, preferring stairs, doing gentle stretches and working on balance.”

One more day, Marcos Llorente wants to convince you not to use sunscreen. One more day, we know it’s a bad idea

In 2026, we are not going to discover Marcos Llorente. Not just because it is an old acquaintance of the Spanish public conversation: midfielder for Atlético de Madrid, Instagrammer with more than two million followers and owner of an enormous amount of pseudoscientific (and, above all, very dangerous) ideas on health issues. But because the large media groups are already in charge of ensuring that it does not go unnoticed. Last night, in the Hormiguero, he repeated again verbatim his usual speech against sunscreen. It is true that Pablo Motos confronted him with data from the Spanish Academy of Dermatologybut Llorente got away without a problem, questioning the studies and maintaining that “many dermatologists and health professionals defend this lifestyle. It is simply having a coherent relationship with the sun.” This, of course, it’s a lie. But we are talking about a serious topic and, for that reason, it is worth returning to it. A “coherent” relationship with the sun? On the one hand, The Skin Cancer Foundation estimates that 86% of melanomas and 90% of other skin cancers are associated with UV radiation. On the other hand, the AEDV maintains that “a significant portion of sun damage accumulates before the age of 20.” In this sense, having TikTok star footballers defending that chemical protection is useless is extremely dangerous. Above all, because it is not (far from it) the first time he has defended it. And we must not forget that, every year, more than a thousand people die from cutaneous melanoma. A misconception, but a very widespread one. Because we must not forget that, as José María Ricart explained to usdermatologist and medical director of the Ricart Medical Institute (IMR), “many people still believe in the idea of ​​a ‘healthy tan’, when in reality it is a sign of skin damage.” Sometimes we have the feeling that sunbathing without protection is little more than simple carelessness; but no: it is a practice that accelerates skin aging and increases the risk of skin cancer. We focus on the most well-known rays, but not the most insidious ones. As Ricart explainedit is important to know well the two types of ultraviolet radiation that can affect us. On the one hand, UVB rays, more powerful in summer, are those that cause sunburn and damage cellular DNA. On the other hand, UVA rays, present all year round, even on cloudy days, penetrate more deeply and are responsible for premature aging. It’s time to stop seeing melanin as a “biological protection” and tanning as something positive. They are not. Tan “is nothing more than a defensive response of the body. It is its way of saying: ‘I am damaging myself’. If anyone still doubts this, compare the skin of the face with that of the buttock, an area never exposed to the sun: without spots, without wrinkles, without photoaging,” explained the dermatologist. What is happening? let there be people deciding not to apply sunscreen going tan is problematic (and bad news for your dermatological health); But the fact that large media groups have no problems with bringing these types of ideas to ‘prime time’ is absurd. Because it is worth remembering that, despite the fact that he presented it as a debate, what was done yesterday in Hormiguero is advertise personal opinion of a footballer against the consensus of the AEDV, the WHO, the SEOM and the Ministry of Health. The mere idea of ​​calling it ‘debate’ is a mistake. Image | The Anthill Xataka | That the AEMPS withdraws six sunscreens is good news. That the OCU had to ask for it is worrying

Schwarzenegger continues training every day at 78 years old and the fascinating thing is that he is right

At 78 years old, the seven-time Mr. Olympia and the most famous cyborg in the history of cinema continues to faithfully attend his appointment at the gym, as Schwarzenegger acknowledges in an entry on his personal blogwhere he explains that even on days when he has less energy he goes to exercise, something that sums up pretty well with the phrase: “No matter the pain, no matter the weight, every day I achieve a victory.” It’s a reality. His mentality, forged in the golden age of bodybuilding, might seem like the eccentricity of a Hollywood star who refuses to age. However, behind Schwarzenegger’s weights and pulley machines lies one of the most robust physiological truths of modern medicine: strength training starting at age 70 and 80 is not an aesthetic whim, It is a medical necessity. Falling into the stereotype that sport is for young people who want to show off having a good body on the beach is real nonsense, because playing sport literally becomes the next prescription for all the benefits it entails. And logically being more or less old here does not at all condition entry to a gym, as science recognizes us. Inactivity weighs more. To reach old age in better health, you don’t have to invest a lot of money in super expensive supplements or creams to keep your skin firm. And there is a widespread belief that the loss of functional capacity and weakness are inevitable consequences of getting older, but here the National Institute on Aging from the United States is blunt about it: in the vast majority of cases, physical inactivity weighs much more than biological age itself in this deterioration. One of the great silent enemies of middle age is sarcopenia, which is the gradual loss of muscle mass and strength, and which literally correlates with both quality and life expectancy. And to correct it, the only treatment we have at hand is to do strength training adapted to each person profile, directly improving our ability to perform such everyday tasks as getting up from a chair, walking to the supermarket or carrying shopping bags. It’s never too late. Another of the great myths that we also have on the table is that you are too old to start exercising, but here the scientific literature reminds us that it is false, since starting late is still (very much) worth it. Here, a study that grouped 121 randomized trials with 6,700 participants showed that progressive strength training improves muscle strength and functional capacity in older people. This resulted in an improvement in autonomy by significantly improving their walking speed and their ability to climb stairs autonomously. Besides this, a recent systematic review of the Polytechnic University of Madrid on training in older people reported that traditional strength training can achieve improvements in knee extension strength of up to 46%. That percentage, in clinical practice, is the difference between needing a walker or walking on your own. Beyond the muscle. Strength work is also important for bone formation and combating osteoporosis by reducing several cardiometabolic risk factors. Besides, the Heart Foundation points out that strength work, added to balance and mobility training, is vital to protect against falls. It is not something minor, since in people over 70 years of age a fall is not an accident, but rather it is one of the most serious clinical problems that can drastically reduce life expectancy. Added to all this is that exercise has been shown to help regulate sleep, improve mood (reducing stress and anxiety) and even protect cognitive function. Adapted. There is no need to try to emulate Schwarzenegger’s youth records to obtain these benefits, but current medical guidelines agree on a minimum effective dose that is very affordable for almost everyone. In this case, for a person over 70 years old, a reasonable guideline supported by evidence is to train strength at least 2 days per week. But here you should always adapt the exercise to each person and start with a gentle exercise and gradually increase it. Although you don’t just have to be with the dumbbell in your hand, it should be combined with balance routines, joint mobility and some aerobic work. Images | Wikipedia Victor Freitas In Xataka | We have been debating for years whether it is better to go to the gym in the morning or in the afternoon. Physiology finally has the answer

start sleeping 8 hours every day

Almost all of us know that sleeping poorly takes its toll on us the next day, where thinking becomes a task that it’s not easy at allin addition to having fewer reflexes or simply being much more tired. However, what happens inside the body when we alter our hours of sleep goes far beyond simple fatigue and contributes (a lot) to our aging. This is what a monumental study has pointed out, putting figures on this phenomenon. The essay. A recent investigation published in the prestigious magazine Nature has analyzed approximately 500,000 adults to find out how sleep duration affects our “biological age.” And the verdict, after measuring the state of almost all our systems, draws a very clear U-shaped curve: the sweet spot is between 6 and 8 hours a day. The biological clock. What makes this study a milestone is not only its gigantic sample size, which gives it enviable statistical power, but its approach. And normally aging studies are based on very general blood markers, but now science has opted to cross-reference data from genomics, proteomics, metabolomics and medical images. With all this information, what they have done is nothing more than create 23 different “aging clocks” that represent the state of 17 organs of the human body. This has allowed them to map in a coordinated way the relationship between the brain, which is affected by this lack of sleep, and the rest of the body. A curve. The main finding of this article focuses on the fact that the relationship between sleep and the level of aging does not follow a straight line, but rather has a ‘U’ shape. This means that people who systematically sleep between 6 and 8 hours have a lower “biological age” compared to their chronological age, in addition to having better general health. But at the extremes, both sleeping less than six hours and sleeping more than eight hours are associated with accelerated aging in most of the organs that have been analyzed. Because? There are reasons for both excess sleep and not enough sleep that justify this accelerated aging. If we focus on people who sleep little, we must take into account that during sleep the brain expands its channels to “clean” the accumulated metabolic waste, which interrupting it can cause accelerated brain aging. But in addition, lack of sleep increases the levels of pro-inflammatory molecules and we already know that inflammation sustained over time can cause irreversible damage to organs. Also in excess. We may think that sleeping a lot is the best thing there is, but the reality is quite different, as this study points out. The reasons for this are that spending 10 hours in bed does not mean sleeping well for 10 hours, since people who sleep ‘a lot’ tend to have fragmented, superficial sleep with micro-awakenings. This means that they spend more time in light phases and less in the restorative sleep that we value so much. But we must also keep in mind that sleeping for a long time can be a symptom of an underlying disease such as depressionsleep apnea or chronic inflammation that is not the cause of aging as such, but does cause great damage to the body. There are nuances. Although the data on the table are quite robust, the study itself points out a crucial limitation that is often the Achilles heel of epidemiology: the association does not prove chance. This means that we don’t know if we age faster because we sleep too little or if we sleep too little because our body is aging due to an underlying disease. As epidemiologists who have reviewed this type of literature point out, forcing a person to sleep 7 hours does not guarantee that their biological clock will suddenly turn back. Furthermore, the researchers themselves clarify that the interval of 6 to 8 hours is a population association. That is, it is what works on average for the human species, but it does not imply that this range is the strict and optimal dogma for the biological needs of each individual. Images | gpointstudio in Magnific In Xataka | We have become obsessed with “natural” sleeping pills. The problem is that we are not solving much

The day Spain wanted to be Spielberg doing science fiction. It was such nonsense that Tarantino ended up claiming the film

In 1982, during the filming of Fitzcarraldo In the Amazon jungle, Werner Herzog heard a completely real proposal from several local indigenous people: they offered to kill Klaus Kinski to put an end to the problems he was causing on set. The German director rejected the idea, but years later he would admit that for a few seconds he seriously considered accepting the offer. The impossible movie. In the mid-80s, Spanish cinema was still very far from Hollywood. Science fiction blockbusters seemed to be the exclusive territory of Spielberg, George Lucas or Ridley Scott, while comedies and much more modest films in terms of media predominated here. Then the director Fernando Colomo appeared and decided do exactly the opposite of what seemed sensible: raising a medieval science fiction epic with aliens, castles, special effects, international stars and the largest budget in the history of Spanish cinema up to that point. The result was so enormous, chaotic and Martian that it ended up becoming a symbol first of absolute failure…and decades later in a cult film claimed even by Quentin Tarantino himself. movie poster Spain in Hollywood style. The dragon knight was born as a completely improbable idea: mixing the myth of Sant Jordi with Encounters in the third phasemedieval fantasy, absurd humor and romantic science fiction. The story began with a spaceship mistaken for a dragon in the middle of medieval Europe and a silent alien (played by Miguel Bosé) falling in love with a princess after accidentally kidnapping her. Colomo came from triumph with the comedies of the Madrid Movida, but decided to launch into a gigantic project by Spanish standards. The budget is over exceeding 300 million of pesetas, a crazy figure for the time. Huge sets were built, models and storyboards that were unusual in Spain were designed, and some of them were experimented with. the first digital effects of national cinema. The problem is that Spanish cinema in 1985 simply did not yet have the necessary industrial infrastructure to build something like that without everything exploding into the air. Martian Bosé, Keitel sunk and Kinski unleashed. The casting seemed like an international frenzy. Harvey Keitel accepted the project at one of the lowest moments of his career after working with Scorsese. Miguel Bosé finished turned into an alien because Imanol Arias “did not have the face of an alien,” according to Colomo himself. And then there was Klaus Kinski. The German actor arrived at the filming as a ticking bomb human. He constantly insulted the team, shouted “What a shitty movie!” During the days, he demanded more money, disappeared when he wanted and turned any technical delay into an attack of fury. Apparently, he only respected Miguel Bosé (and for being Picasso’s godson) and the gypsy animal caretakers on the set. To give us an idea, Keitel even offered to pay out of pocket to settle one of Kinski’s contractual tantrums. The atmosphere was so unbearable that Colomo tried to film all the German scenes before meals so I can have a quiet lunch without him. History left the moment when Kinski finally finished his sequences and left the shoot, when the team celebrated his departure. opening bottles of champagne All wrong. The film was shot amidst constant rain, delays, cost overruns and situations almost surreal. An extra was about to drown during a sequence on a lake because the armor was too heavy and he couldn’t stay afloat. An electrician managed to rescue him at the last moment and then used that anecdote for years to demand work in new Colomo films. Not only that. The castle where they were filming was so poorly located that the crew had to upload loading material on exhausting days every morning. Miguel Bose I could barely breathe inside his spacesuit and diving suit it continually fogged up. Meanwhile, money was disappearing at breakneck speed. What had started as an ambitious fantasy ended up becoming something of a kind. suicide expedition where every day seemed to bring a new logistical disaster. The final failure. When The dragon knight It hit theaters in 1985, the reaction was brutal. Part of the criticism destroyed her describing it as a botched, absurd and inoperative fantasy. Although the film was relatively seen and became the seventh highest-grossing Spanish production of the year, that it wasn’t enough to recover such a crazy budget. To make matters worse, the American distributor broke agreements due to delays in the delivery of the material and Colomo lost a trial in Hollywood that left him without international rights. The director finished in debt with 50 million of the old pesetas and, according to would count Years later, he only kept “a Renault 5.” The experience was so traumatic that he thought he was going to have a heart attack. In fact, to survive financially he wrote almost as an emergency The joyful lifewhose subsequent success allowed him to pay off the debts accumulated by that medieval space madness. From disaster to cult movie. For decades, The Dragon Knight was remembered as one of the big hits of Spanish cinema. But over time something began to happen that has been repeated in many other celluloid productions: many people began to see it with fascination. Its impossible mix of genres, its naive tone, its disproportionate ambitions and the chaos that each scene gives off transformed it into a unique rarity. Festivals like CutreCon They claimed it as a cult work and the film ended being restored in 4K forty years after its premiere. The definitive turn came when Colomo remembered a conversation in Sitges with Quentin Tarantino. The American director, always obsessed with strange and failed films, immediately recognized Star Knight (his international title) even before Colomo himself remembered what it was called in English. It turned out that that martian medieval that almost ruined half the world ended up surviving in the most improbable way: converted into a delirious relic of a moment in which Spanish cinema believed, … Read more

the day Naples rejected a Boeing 787 with 200 people on board because it would not enter the airport

It hasn’t been long since dawn and the passengers are stretching one day in June 2025 thousands of meters above sea level. They left Philadelphia last night and are about to land in Naples. They are about to discover that, whether they slept better or worse, they are going to have a bad awakening. And when they approach eight hours into the trip and already see the Italian coast on the screens in their seats, a voice informs them that they will not land in Naples. There is not much to fear, everything is in order. All. Except for a small bureaucratic error that is currently diverting them to Rome. They will probably find out about that later. All they know is that their flight from Philadelphia to Naples has had to be diverted. And this time it was not due to a breakdown, a storm or a health emergency. The reason is simple: the plane is too big to land in Naples. Two meters, specifically. Two meters that no one noticed The Philadelphia-Naples route operated by American Airlines is a very good option if you want to travel from the United States to Italy and do not have the need to go through the large airports of New York or Rome. It also has the advantage that it flies at night, which makes it easier to deal with jet lag. Encouragement that, surely, was appreciated by the 231 passengers who had to travel on a Boeing 787-8, according to C.B.S.. However, that day, the airline could have put someone else on board. And, for operational reasons, American Airlines used a Boeing 787-9 On that trip June 3, 2025, a plane slightly larger and with greater capacity than usual on a route that It has been operating since 2024. The aircraft are almost carbon copies. Of course, a Boeing 787-8 measures 57 meters long but the 787-9 already extends to 63 meters long. A difference that has implications beyond the number of passengers. And, according to air safety regulations, a Boeing 787-8 can land in RFFS Category 8 airports (Rescue and Fire Fighting Services) or higher. But a Boeing 787-9 does not have it so easy, it needs to do it at airports in Category 9 RFFS. The difference is small but it is substantial. A Category 8 RFFS airport can accommodate aircraft up to 61 meters long. Yes, two meters shorter than the Boeing 787-9. And you can imagine what category Naples airport has. Indeed, about 70 miles awaythe American Airlines flight asks for a runway in Naples but from the control tower someone realizes the problem: the aircraft is not the same as always. For logistical reasons, the airline was using this second, larger version of the Boeing 787 and therefore exceeded the maximum permitted limit of 61 meters. No one in the company updated the documentation or notified of the change. Technically the problem is not in the size of the trackthe problem is in the security measures. And Naples is not prepared to deal with a possible incident involving a plane of this size. Airport categories are not only classified based on the size of the runway, but also take into account their ability to accommodate emergency and firefighting services. From the control tower they see it clearly, there is no choice but to warn the pilots: they must land in Roma Fuimicino. The capital’s airport is the closest airfield where flights the size of a Boeing 787-9 can land and is therefore where the passengers were ultimately taken. From there, they were finally transferred by bus to Naples, a trip that takes between two and three hours. A lesser evil for a problem that would have been much more serious if the aircraft had had a problem when landing. Photo | Dominic Bieri and Flightware In Xataka | The inevitable increase in air travel is leading us to a reality: there are no places, no planes, no planet for so many tourists.

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