tend

we tend to turn left and we have no idea why

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It’s a matter of a moment. You’re walking down the sidewalk, thinking about your things, maybe you look at your phone, and suddenly there’s something in front of you. It doesn’t matter if it’s a bollard, a person, a kiosk or a baby stroller. You have to avoid it, you have to do it now. Now. And, probably, you are going to the left. And it seems that you decided it, but that decision was already made long before that walk down the street. A few days ago, a research team led by the University of Navarra has shown that, when wandering freely, pedestrians tend to turn counterclockwise and that this tendency is robust, cross-cultural, and of individual origin (not a pattern that emerges from group interaction). Turn left. The team demonstrated that the tendency to turn left occurred in 32 of the 33 experiments they carried out. The only exception was in a study in Japan where the result was 50 to 50. According to the authorsbias appears “almost immediately” in around 80% of people; when tested walking alone, 75% still deviate to the left. Furthermore, it is something individual: it does not matter whether the person walks alone or in the middle of a crowd. The bias appears exactly the same. And this is what’s interesting because, basically, it turns upside down what we think we know about “pedestrian dynamics.” And why is this happening? That’s the big question. Researchers rule out many things. It is not a product of manual laterality (being right or left-handed), foot laterality or ocular dominance. There are also no differences between sexes or between cultures. It doesn’t matter what the venue is like (whether it’s an open-air esplanade or a tiny patio full of walls), it doesn’t matter what avoidance maneuvers pedestrians use and, of course, it doesn’t matter what social norms they learn. Furthermore, if we ask pedestrians where they think they should move, most of them they say the opposite of what they end up doing. What researchers do not do is propose a closed mechanism to explain it. In other words, we don’t know. And what is it for? The most important implications for the design of spaces. As the authors explainairports, stations, museums, shopping centers or squares could be designed in favor of the counterclockwise bias. Obviously, not everyone always turns left. What the authors are saying is that, statistically, the probability of turning to the right is lower. The logic is simple: if we take that into account, the dynamics of public spaces can be more fluid. We already know that in evacuations or highly regulated environments, other mechanisms can override counterclockwise bias. But the idea is not that, it is to use the bias in favor. Image | Timon Studler 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

We tend to think that the war of extermination was invented by the modern State. A mass grave from 2,800 years ago has just destroyed the myth

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There is an almost romantic tendency to idealize the remote past. Perhaps, inspired by the myth of the “noble savage” they often let’s imagine prehistory and the first societies as peaceful environments where extreme violence and systematic was an aberration or, in any case, an invention that came with the help of more modern times. But the reality is that if we had a time machine, this would be one of the few places where we would have to travel. A reality. Archeology has an uncomfortable habit of unearthing truths that do not fit our prejudices. The latest blow to this idyllic vision that some may have comes from the Balkans, specifically from a mass grave in Gomolava from 2,800 years ago that reveals a calculated, selective and brutal massacre against women and children. A mystery. In the 9th century BC, during the first Iron Age, the Carpathian and Balkan region was inhabited by societies that we today consider primitive. Specifically, they could be found semi-nomadic groups and sedentary communities who were beginning to clash for control of the territory. But here there were neither states nor regular armies. In this way, when archaeologists found a huge mass grave with the remains of 77 individuals at the Gomolava site, the first hypothesis was the most logical for the time: a catastrophic epidemic devastated everyone. However, a new study published in the magazine Naturehas completely rewritten the history of this site, combining forensic, genetic and isotopic analyses. Annihilation. Here the DNA was clear, since there was no trace of deadly pathogens. In this case, people died not from a disease, but from an outbreak of deliberate violence that has shocked the scientific community. Not only because of the violence, but because of the demographic profile, since 70.8% of the adults were women and 66% of the total were children and adolescents. Here the forensic analyzes revealed a terrifying pattern, since the vast majority had injuries at the time of death in the skull. Thus, they were forceful blows inflicted from above, suggesting that the attackers could have been on horseback or executing the victims while they were kneeling or subdued. Why children and women? The answer is pure strategic calculation, since the study of isotopes and DNA revealed that, with the exception of a mother and her two daughters, the victims were not related to each other and came from various regions with varied diets. But it was not a simple robbery gone wrong, but rather an interregional selective annihilation designed to wipe the reproductive future of rival groups off the map. And, in a context of profound social restructuring and territorial conflicts in the Carpathian Basin, eliminating offspring and those people who can produce even more offspring, such as women, was the most brutal and effective way to assert power in an area. Without a doubt, a great strategy to prevent anyone from claiming rights in that area. Ritual. To add another layer of complexity to this dark episode, the burial was not improvised. Contrary to what happens in many mass graves that are quickly made to throw the corpses, andIn this case they took their time. Investigators saw that the victims were buried next to bronze jewelry, ceramics and even sacrificed animals, so it was quite taken care of. Here the theory proposed is that it is a “macabre demonstration of power”: an act where the brutality of the massacre coexists with the socioeconomic value of the victims and the need to maintain the funeral customs of the time. Image | Sarah Nylund (Nature) In Xataka | When did human beings start “cooking”? The answer lies in some carp from 780,000 years ago.

The Canary Islands will tend an underwater cable to Morocco. If Morocco decides to extend it, Spain will have a problem

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An underwater cable of 49 million euros will connect the Canary Islands with Africa, but it will stop just where the legal problem begins: the border of the Western Sahara. What is happening. The Ring of the East islands will first join Gran Canaria, Lanzarote and Fuerteventura with the latest generation fiber. Then it will jump to the African continent, to Tarfaya, the last Moroccan city before the West Sahara. The Canarian government It has been clear: “The cable goes to Tarfaya, it has nothing to do with Western Sahara.” But Morocco has other plans. His government wants to extend that connection to what he calls his “South Provinces”, the euphemism with which he refers to the Saharawi territory since 1975, when Spain abandoned it. Why is it important. Submarine cables are Internet highways. 99% of data traffic between continents travels through them. This project promises to make the Canary Islands a digital node between Europe and Africa. But there is a huge legal problem. The EU Court of Justice considers any economic activity in the Western Sahara without consent of the Polisario Front, recognized by the UN as representative of the Saharawi people. And the Polisario He has already warned: If the cable reaches Saharawi territory, they will go to court. The context. Since Pedro Sánchez supported the Moroccan Autonomy Plan for Sahara in 2022Spain tries to maintain the balance between its economic interests with Morocco and its international legal obligations. This cable puts that test balance. If the infrastructure that Spain finances with European funds ends up facilitating Moroccan expansion in Sahara, could splash Spain with legal problems in European courts. The money trail. The construction has already begun with these numbers: 49 million total budget. 20 million provided by the European Investment Bank. Additional 7.5 million for connection with Tarfaya. In February, Canalink technicians – the Canarian public company that leads the project— Tarfaya visited to study the land and design the submarine layout. The cable will be manufactured in 2025 and will be deployed in 2026. The precedent. It is not the first time that Canary Islands connect with Morocco. Since 2011 There is a cable with Asilahin the north of the country. But that did not generate any controversy because it is far from the territory in dispute. This is different. It reaches the same border of the Sahara. And even if technically stops there, it creates the perfect basis for Morocco to complete what European companies cannot do directly by legal restrictions. The threat. The Polisario Front has a history of victories in European courts. He has lying fishing agreements and agriculture between the EU and Morocco for including resources from the Sahara without its consent. “We will carry out any action to guarantee the rights of the Saharawi people,” He said Abdulah Arabi, representative of the Polisario in Spain. A data cable would be your next goal if you cross the border. And now what. The project will continue because Canary Islands need this connection. The ESSI Spain will be able to maintain the legal fiction that its responsibility ends in Tarfaya. If Morocco extends the cable to the Sahara using the base infrastructure financed with European money, Spain could be found in the midst of another conflict between its economic interests and its obligations with the territory that it abandoned 50 years ago. And this time it will not be for fishing or phosphates, but for the control of the data between two continents. In Xataka | The Google Maps of submarine cables: an imposing interactive map that allows us to know the skeleton of the modern world Outstanding image | TelefónicaGoogle Maps

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