If you are going to install air conditioning, remember what happened to South Korea. It was the architectural disaster of the millennium

In the 1990s, some of Asia’s densest cities reached concentrate millions of people in urban areas built in just a few decades. In that same period, several studies began to warn that a significant part of the buildings erected during the great economic booms had serious structural deficiencies. In fact, in some inspections after major accidents, it was estimated that only a minority of buildings fully complied security standards. When you grow faster than you can build. In a few decades, South Korea went from the devastation of war to becoming an industrial and urban powerwith a speed of growth that was hardly unprecedented. Furthermore, during the economic boom in the 1980s, the country was chosen to host the 1988 Olympic Games, and an exorbitant number of buildings were built to meet these new needs. That impulse translated into a construction fever where building architectures mattered more than doing them well, and where practices such as cutting costs, accelerating deadlines or ignoring technical warnings became common. In that scenario was born Sampoong Department Storenot as a project exceptionally flawed from the beginning, but as a typical product of an era when progress was measured in square meters and not in safety standards. Air conditioning as a wick. The key point of the tragedy that was about to take place and that ended up turning the department store into the millennium architectural disasterit was not a single error, but a chain of decisions that ended up concentrating all the fragility of the building in an apparently secondary detail: the air conditioning system. As? Apparently, the equipment installed on the roof They weighed tens of tonsfar above what the structure could support, and their accelerated installation did not even follow normal procedures, as they were dragged on the roof, damaging the structure itself. From that moment on, a terrifying image: every vibration when you turn them on widened invisible cracks that toured the building. What should have been an element of comfort became a lethal burden that ended up acting as the final trigger for the collapse, concentrating years of accumulated negligence in a single point. The department store before the disaster Condemned from the plans. The disaster began long before anyone heard creaking in the ceiling. The original project It was a residential block four floors, but was transformed by Lee Joon, future director of the Sampoong Group, to turn it into a large shopping center without properly redesigning the structure. Plus: Due to bans in Seoul that prevented foreign companies from signing contracts in the city, these monstrous buildings were awarded to a handful of South Korean companies. Overwhelmed by pressure, companies decided that it was best to accelerate the pace of work, regardless of the cost. Thus, the diameter of the pillars was reduced from 80 to 60 centimetersand the distance between them was increased to increase the useful surface, columns removed to install escalators, its thickness was reduced to gain commercial space and a fifth floor was added that was never planned. Each modification increased the weight and weakened the resistancewhile companies that warned of the danger were fired and replaced by more accommodating ones. The result was a chaotic building that, on paper, no longer had a safety margin even before opening its doors. Cracks getting bigger. In the months before the collapse, the building gave multiple warnings that something was wrong. Visible cracks appeared, floors vibrated, employees felt dizzy, and engineers warned of a imminent structural failure. The management’s reaction was to close some areas, turn off the air conditioning at the last minute and continue operating normally in the rest of the building. The reason was so simple as devastating: Losing a day of sales in a complex that received thousands of people was unacceptable. Even on the day of the collapse, with cracks of several centimeters and obvious signs of danger, it was decided do not evacuate customers. Images after the collapse The collapse. On the afternoon of June 29, 1995, the building did not explode nor was it the victim of an external attack: he just gave in to the crazy number of negligence. The air conditioning equipment ended up passing through the weakened roof, the columns could not support the accumulated load and the building collapsed. collapsed in a matter of 20 secondscrushing entire plants on top of each other. More than 500 people died and more than a thousand were trapped, many of them in a space that, just a few hours before, symbolized the country’s economic success. It was a destruction so rapid that it turned a shopping center full of life into a mountain of rubble in less than half a minute. Images after the collapse An avoidable tragedy. Rescue efforts continued for weeks, with survivors found even more than two weeks later under the remains of the building. But the magnitude of the disaster revealed an even more disturbing reality: many victims did not die only from the collapse, but due to subsequent failures in emergency management. Meanwhile, investigations confirmed the most obvious: there was not a single cause, but one after another.accumulation of avoidable errorsfrom the use of low-quality materials to business decisions that prioritized immediate profit over any safety criteria. Monument in memory of the collapse Corruption, punishment and a system in question. The collapse not only destroyed a building, but exposed an entire system. Those responsible, starting with owner Lee Joon, were convicted, including several officials involved in corrupt practices, but the impact was much broader. Subsequent inspections revealed that a significant portion of Seoul’s buildings had very serious structural problemswhich forced us to review regulations and reinforce controls. The Sampoong ceased to be an isolated case and became in a symbol of what happens when a society builds too quickly and too badly. The legacy. Today, where the building stood there is no visible trace of the tragedy, but its lesson remains crystal clear. The disaster was not the result of bad luck … Read more

Terence Tao is the best mathematician in the world. He has recognized that he is using AI to solve one of the Millennium Problems

Stating outright which person is the best in the world at something is risky. If we stick to cutting-edge research in the field of mathematics the German Peter Scholze, the British James Maynard or the Chinese-American Yitang Zhang, among other researchers, are usually considered the most capable living mathematicians. However, in the scientific community there is an almost unanimous consensus that Terence Tao, who has dual Australian and American nationality, is the authentic “Mozart of mathematics.” His prestige has been earned hard. He won the Fields Medal, which is often considered the Nobel Prize in mathematicsin 2006, when he was 31 years old. And he was awarded it for his contributions in three fundamental areas: number theory, partial differential equations and harmonic analysis. However, the Fields Medal committee especially highlighted his ability to connect areas that most mathematicians considered isolated. In any case, this is not all. Tao is often admired for his versatility. Many elite mathematicians specialize in a specific field, but this scientist has produced cutting-edge work in combinatorics and compressed detection, in addition to the three areas for which he received the Fields Medal. And, furthermore, he has earned a reputation as a generous researcher who works very well in a team and is always willing to adopt new technologies to address the greatest mathematical challenges. AI is an essential tool in mathematics for Terence Tao Dwarkesh Patel, an Indian-American content creator specializing in technology and artificial intelligence (IA) who has established himself as one of the most influential voices in Silicon Valley thanks to his interviews with Elon Musk, Mark Zuckerberg, Satya Nadella, Ilya Sutskever and Demis Hassabis, published just a few days ago a very interesting conversation with Terence Tao. And AI has been the absolute protagonist of a dialogue in which this mathematician has enthusiastically defended the role that this technology already has as a “trusted co-author” in research in the area of ​​mathematics. Terence Tao is currently one of the biggest promoters of Lean within the scientific community In October 2024 Meta AIMeta’s AI, managed to generalize the Lyapunov function. Russian mathematician Aleksander Lyapunov proposed the concept of the function that bears his name in 1892. His work is a very important tool in the study of dynamical systems, but mathematicians have struggled since then to find a general method that would allow them to identify Lyapunov functions. And they were not successful. However, Meta AI has had it. This is just one example that clearly illustrates the capacity that AI already has when it comes to facing some mathematical challenges. Terence Tao does not believe that AI will end up replacing researchers; argues that it is actually a very valuable tool that allows mathematicians to leave behind individual research and collaborate on much larger and more ambitious projects. And he leads by example. In fact, you have introduced Lean into your daily workflow. This tool is a proof assistant and programming language designed to verify mathematical reasoning and verify that it is completely correct. Tao is currently one of the biggest proponents of Lean within the scientific community. “I hope that the AI ​​of 2026, when used correctly, will be a trusted co-author in research in mathematics. And in many other fields as well,” defends Terence Tao. He is currently using this technology to confront some of the biggest math challenges there aresuch as the Collatz conjecture or the Navier-Stokes equations. The latter give shape to one of the Millennium Problems and they seek, broadly speaking, to understand how fluids behave. Interestingly, these equations are constantly used to predict the weather or design airplanes, among many other applications, but we still don’t understand precisely how they work. Terence Tao and AI are one of our best assets when it comes to definitively solving this enigma. Image | Generated by Xataka with Gemini More information | Dwarkesh Patel In Xataka | These two problems have baffled mathematicians for decades. A genius has solved them with a stroke of the pen

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