In the nineties many people had a cactus next to their computer. It wasn’t for decoration, it was to protect yourself from radiation

A few days ago we were talking about a myth circulating that says that if you put a coin on top of the router improves WiFi. It’s as stupid as a temple, but it’s the typical easy-to-do trick that ends up going viral. In the nineties we did not have social networks and the word viral had a completely different meaning, but myths of dubious credibility were also spread, such as the one that said you had to have a cactus next to your computer to absorb its radiation. The origin of the myth. It is believed to come from from an observation made at the geobiology institute in Chardonne, Switzerland, in 1987. It was not a formal experiment, but rather the perception of the institute’s employees who claimed that placing a cactus next to the monitor reduced their symptoms of fatigue and headache after spending many hours working. To that anecdote was added, without links or details, the reference to “a NASA study.” There is no evidence to support any of this, but the use of institutional names was enough for the myth to spread with a semblance of scientific rigor that it never had. Fear of radiation. The word radiation acquired a very negative tone especially after the Chernobyl nuclear disaster. However, not all types of radiation are harmful. “Bad” radiation is ionizing radiation, such as x-rays or gamma rays, but in the case of a computer, it is low-frequency electromagnetic radiation, non-ionizing and incapable of altering our cells. This and other myths (such as related to 5G) arise from the false belief of associating any type of radiation with something dangerous and harmful. Why a cactus. The fact that a cactus is recommended and not any other plant has to do with the fact that they have a high water content and of course, like water absorbs radiation since it is assumed that the cactus will also do it. It can absorb radiation, yes, but no more than any object: by that rule of three, a watermelon or a jug of water next to the computer would achieve an even greater effect. In addition to the fact that the electromagnetic field that a computer can emit is not harmful, it goes out in all directions, so to protect us from it, we would have to surround the entire machine with cacti, not place one next to it and that’s it. Efficacy not found. In 2018, a group of Turkish scientists set out to check if changes occurred in the electromagnetic field by placing a cactus nearby of the screen. They were made with LCD monitors and old tube monitors, as well as different varieties of cacti, including some large ones. They measured the electromagnetic field by placing the cactus in various positions and came to a clear conclusion: the effect was null. Although this trick has been refuted, the popular belief has remained and there are those who have taken advantage of it. Who is it? The cactus sellers. Image | Magnificent In Xataka | We could assume that the plant world was one of the last AI-free corners. we would be wrong

In the nineties, no one saw how the Internet would starve factories. Thirty years later, AI is doing the same thing

On the one hand, the United States government is trying to reverse three decades of deindustrialization with tariffs on China. On the other hand, investment in AI is recreating exactly the phenomenon that destroyed part of the American industry in the 1990s. History repeats itself, but this time knowing what is going to happen. Why is it important. Derek Thompson, business reporter for The Atlantic, has identified a pattern that rewrites what we thought we knew about American industrial decline. China not only stole jobs but American capital abandoned them early. In an interview with the investor Paul Kedrosky for his podcast Plain EnglishThompson presents his thesis: In the nineties, the massive deployment of the Internet and telecommunications absorbed brutal amounts of money. That money had to come from somewhere. He left the factories. Small manufacturers saw financing becoming increasingly more expensive. Just at that time, China was entering the World Trade Organization and trade barriers were falling. It wasn’t bad luck. It was cause and effect. The context. Technology companies are going to spend about $400 billion this year building infrastructure for AI. To put it in perspective: the Apollo program that took the United States to the Moon cost about 300 billion adjusting for inflation. That was ten years. This is a year. Data centers have accounted for half of US economic growth in the first six months of 2025. The forecast is that investment exceeds 500,000 million annually in 2026 and 2027. Meanwhile, American consumers are spending $12 billion a year on AI services. The difference between what is invested and what is earned is abysmal. The panoramic. The problem is structural. If you manage an investment fund with 500,000 million, you have two options: You can distribute that money among a hundred small factories that need five million each. Or you can write ten $50 billion checks to AI projects. The first option means managing a hundred different companies. Sit on dozens of tips. Do constant monitoring. The second means ten meetings a year. The choice is obvious. A manufacturer that wants to take advantage of the moment to bring production back to the US finds that borrowing money is very expensive. Banks compare their project with the returns that AI promises. There is no color. The irony. Trump has built his economic policy on tariffs that force companies to manufacture in the US. But investment in AI is making it more expensive exactly what the tariffs are trying to make cheaper: producing locally. Tariffs raise the price of importing from China. AI raises the cost of financing local production. The net effect may be zero for the industry, but with higher prices for everyone. The figures. Building a modern data center involves… That 60% of the budget goes to NVIDIA chips. The rest is divided between refrigeration, electricity and construction. The physical building is the cheapest part. Geography also counts. Northern Virginia concentrates a good part of the investment. Areas that were rural ten years ago are now surrounded by industrial facilities that operate 24 hours a day. Yes, but. There is a way out that did not exist in the nineties: set up data centers outside the United States. India and the Middle East are receiving huge investments because electricity is cheaper and your neighbors, ahem, complain less. But that makes the original problem worse. If the money goes to data centers in other countries, there is even less left for American factories. Between the lines. Kedrosky uses a simile that sums it all up: a death star that absorbs capital. In the nineties that star was the Internet. Now it’s AI. The factories, in both cases, are collateral damage. The difference is that in the nineties no one saw it coming. Now yes. In Xataka | Spain has a railway giant in the shadows. And he just got the “contract of the century” Featured image | Cemrecan Yurtman

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