“The first forty years of our lives provide the text; the next thirty, the commentary”

His status as a star philosophical pessimism and his most famous portraitin which we see him as an old man, disheveled, gray-haired, with a tired look and a severe rictus, has made us observe Arthur Schopenhauer with some suspicion. In an already difficult world, who would want to dedicate a few minutes to a 19th century Prussian who stood out for the crudeness with which he approached life? The reality is that in 2026 Schopenhauer is still a philosophical beacon that helps us understand issues as basic as the meaning of life. Even “the crisis of 40”. Life, like a book. Throughout his long life (he died at the age of 72) Schopenhauer dedicated himself to writing on issues as diverse as politics, aesthetics, morals, psychology, rhetoric or even about ‘the art of insulting’. Towards the end of his life, however, he published a monumental work, Parerga and Paraliomenain which he leaves a vital reflection that over the years has become one of his most famous aphorisms. And it’s normal. Ultimately, it sheds light on the meaning of life using a universal metaphor: books. What does it say exactly? That just as essays, novels or plays follow an internal structure without which they would be chaotic, life can be divided into parts that, in a certain way, explain each other. To be more precise, in his ‘Eudemonology’, Schopenhauer tells us: “In a broader sense, it can be said that the first forty years of existence provide the text and the next thirty the commentary, which then makes us understand well the true meaning, then the morality and all the subtleties (…). At the end of life there is something that reminds us of the end of a masked ball, when the masked men retire.” Is it the only quote on the subject? No. In his work, Schopenhauer, who was already over 60 years old when it was published Parerga and Paralipomenagives us many other phrases that point in a similar direction. For example: “In youth, contemplation dominates; in mature age, reflection. That is why the first is the age of poetry; the second, that of philosophy. In practice, likewise, one is determined by perception and its impression during youth; Later, by reflection.” “This comes partly from the fact that in middle age images have been presented and grouped around notions in sufficient numbers to give them importance, weight and value, as well as to moderate at the same time, for custom, the impression of perceptions.”. “Only he who reaches old age receives a complete and measured representation of life, since he encompasses it at a glance in its fullness and in its natural course, in a special way and not merely as others do, only from its beginning, but also from its end, through which he perfectly recognizes its vanity. What do you want to tell us? May your reflections have had so much success It’s not surprising at all. Faced with frustration, defeatism or even pessimism due to the passage of time, Schopenhauer basically reminds us that each period of life has its function in the story of life, just like the parts of a book. During the years of youth we ‘write’ the text, we make decisions, we accumulate experiences, we make mistakes and successes and, ultimately, we form our character and set a path for ourselves both at a professional and personal level. In the second half of life, as we mature, turning 40, it is time to look back and adopt a critical approach that gives us coherence. Beyond Schopenhauer. As remember in TrendsSchopenhauer’s theory connects with those of other actors, such as the psychiatrist Robert N. Butler, who in the 1960s described the tendency of people to review their own biography when they reach old age to make sense of it. After all, we are not just a concatenation of decisions and events, but the story that we ourselves shape and build with those pieces, a story that is in the process of being rewritten. Why at 40 years old? Schopenhauer wrote in the 19th century, the one in which he lived, and this is perceived in his essays. For example, he marks the turning point at 40 years old and outlines a life horizon of another 30 years ahead. The reality is that right now life expectancy in Spain is over 84 years old. That being true, it is undeniable that the Prussian had amazing aim. Today experts use a concept called reminiscence bump (reminiscence peak) that describes how when entering adulthood, at 30 or more years old, our autobiographical memory becomes especially active. The phenomenon connects in some way with Schopenhauer’s metaphor. “He reminiscence peak refers to the disproportionate amount of autobiographical memories dating from adolescence and early adulthood. It has often been attributed to the consolidation of the mature self in the period encompassed by that peak,” they explain researchers Jonathan Koppel and Dorthe Berntsen. Other authors they define it such as “the increase in the proportion of autobiographical memories of youth observed in those over 40 years of age.” Centering the focus. Does that mean that after 40 the past defeats us? Are we condemned to live chained to continuous memory? No. What Schopenhauer tells us is that when we reach adulthood the focus changes: beyond the experiences or decisions, the story matters. We discover the meaning of the path we have traveled and see things more clearly. We move from the age of poetry to the age of philosophy, paraphrasing Schopenhauer. The reflection of Qarerga and Paralipomena It helps us better understand Schopenhauer’s multifaceted and nuanced thought. To that and something more: understanding that, beyond the patina it may have, philosophical pessimism it’s not exactly the same than psychological pessimism. On the contrary, authors like Schopenhauer offer a path that can be followed with a positive attitude and helps to avoid the goodness that has made happiness an industry. Images | Wikipedia 1 and 2 Via | Trends In … Read more

A milestone that will provide you with all the uranium you need for decades

Nuclear energy It is essential for China. The development he has experienced in this Asian country during the last two decades supports this statement. In 2002 he only had two nuclear centrals in operation. Today you have nothing less than 58 activity in activity. Only US has more (94). There is no doubt about one thing: during the last two decades China’s civil and military nuclear program It has advanced with a dizzying speed. And it seems that he will continue to do so. Anyway the heart of the nuclear program of the country led by Xi Jinping, and that of any other nation that bets on nuclear energy, It is uranium. This chemical element is present in nature in very low concentrations, usually in rocks, land and water. Hence, its obtaining is expensive and its complex treatment, since it requires chemical processes capable of separating it from the other elements and impurities with which it usually lives. It has 92 protons and many other electrons orbiting around the nucleus, and the latter incorporates, in addition to the protons, between 142 and 146 neutrons. It is important that we remember that the nucleus of an atom is usually constituted by a certain number of protons and neutrons (although not always: the protio, the isotope of the most abundant hydrogen, has a single proton and no neutron in its nucleus), as well as by some electrons that orbit around it. China already knows how to exploit deposits that until now were inaccessible The fact that the number of neutrons of the uranium nucleus can vary, as we have just seen, it indicates that there are several isotopes of this chemical element, which are nothing other than atoms with the same number of protons and electrons, but different number of neutrons. The reason why in nuclear fission reactors An uranium-235 atom is used, and not another isotope of this element or any other chemical element, it is that by bombarding its nucleus with a neutron (a process that is known as induced fission) the Uranium-235 is transformed into Uranium-236, which is a more unstable element. This simply means that Uranium-236 cannot remain long in its current state, so it is divided into two lighter nuclei, such as barium-144 and crypton-89 or Cesium-137 and Rubidio-96, and also emits two or three neutrons (2.5 neutrons on average). And here comes the really interesting: the sum of the masses of the light nuclei It is slightly lower than that of the Uranium-236 nucleus from which they come (“disappears” around 0.1% of the original mass). Where has the mass we lack? Only one is possible: it has been transformed into energy. Its largest uranium deposit lies in the Ordos basin, in northern China Until now, China has obtained the uranium that its nuclear power plants need from their Xinjiang, Jiangxi, Guangdong, Yunnan and Sichuan deposits. However, it also matters from Namibia, Kazakhstan, Russia, Uzbekistan, Canada and Australia, among other countries. The funny thing is that its largest uranium deposit lies in the Ordos basin, in northern China, but has a very important problem: It is very difficult to exploit it. In fact, until just a few months that uranium was essentially inaccessible using existing extraction and processing technology. The technical limitations led to the Chinese government years ago to rule out the exploitation of the mines of the Ordos basin, but in 2023 it changed their minds and decided to launch a project called “National Uranium Nº1”. His plan consisted of Develop the necessary technology To extract and process the uranium of ordos with a purpose: take a giant step on the way to China’s self -sufficiency in the field of nuclear energy. The problem of this huge site was that uranium is disseminated and mixed with other sandstone -shaped elements. And it is difficult to process it without the costs are triggered. Even so, in mid -2024 China produced natural uranium by first time by leaching in situ. And now, According to the China National Nuclear Corporation (CNNC)has produced its first uranium barrel using this method. The leaching in situ requires injecting in the bed of underground ore through wells a solution of carbon dioxide and oxygen that is capable of dissolving uranium. Then it is necessary to pump to the surface the liquid contained in this chemical element and process it. China’s merit is not just having solved this challenge by finding the ideal aqueous solution; is having achieved it from an economically viable and environmentally respectful formalways According to the information that the National Uranium Corporation of China has made public. Image | Xataka More information | Interesting Engineering In Xataka | The largest nuclear power plant in the planet is a beast with seven reactors. Is ready to return after Fukushima

We have been using sweeteners that provide zero calories. Now we understand why they don’t always help lose weight

Sugar is one of the most daily foods and one on which food controversies do not scarce. Excessive sugar consumption can be linked to various problems, from the oral to diabetes. The artificial sweeteners that we sometimes use to reduce the consumption of conventional sugars can be healthier, but no less controversial. Less sugar, more hungry. A recent study He has found that some artificial sweeteners could be affecting the signals that manage our appetite at the brain level. The team responsible for the study observed that the Sucralosa had a less satiating effect than sucrose, conventional or table sugar. The Sucralosa. Sucralosa is a artificial sweetenera disaccharide or compound sugar such as the union of two simple sugars. Its sweetest capacity is up to 600 times higher than that of sucrose, but our body does not absorb it in the same way. This implies that this sweetener has no caloric contribution to our body. This could explain the observed phenomenon: our body would perceive the sweet taste and prepare for calorie ingestion. The body would simply be responding to the absence of energy received. 75 participants. In the study, 75 participants who worked as both of the experimental group and control group in two sessions separate days or weeks from each other took part. Participants, men and women, some with “healthy” weight, others overweight or obesity, consumed three drinks prepared in the experimental sessions to which they underwent. These preparations were a sweetened drink with sucralose, another with conventional sugar (sucrose), and another simple water. The order in which they assigned each drink was random. The team later studied the participants’ response to each drink. Before and after the test they carried out functional magnetic resonances, they took blood samples and asked the participants for their feeling of hunger. They observed that the sucralose increased appetite and activity in the hypothalamus and that it did it to a greater extent among the participants with obesity. The team also detected changes in how the hypothalamus communicated with other brain regions. The details of the study were published In an article In the magazine Nature Metabolism. Old acquaintances. The key can be in the hormones that our body produces when eating, hormones such as insulin and LPG-1 (Glucagon -like peptide 1). This last hormone is produced in the stomach when we eat and fulfills a double function: on the one hand warns the pancreas that we will need insulin to manage digerida glucose; and by transmits to our brain the message that we have fed and satiated. “The body uses these hormones to tell the brain that you have consumed calories, to reduce hunger,” Explain in a press release Kathleen Alanna Page, co -author of the study. “The Sucralosa did not have that effect, and the differences in hormonal responses to the sugar compared to sugar were even more pronounced in participants with obesity.” Much to investigate. According to the team itself, there are still some unknowns to solve in this context. One question, for example, is how this sweetener affects our brain activity in the long term. To do this, they explain, longitudinal studies will be necessary that also analyze the weight and food behaviors of the patients. Another issue to solve is how other factors affect, such as sex, this relationship. The team indicated that during the experiment, the brain activity of women showed greater variability than that of men, which implies the possibility of differences to study. In Xataka | Some researchers have analyzed the impact of sugary drinks on world health. They have taken their hands to the head Image | Faran Raufi

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