external

If the universe is closed, there is no room for an external observer

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In the world of theoretical physics, the different articles that are published can be dry texts, full of equations with endless integrals. However, a recent article has broken this rule. Although its content is rigorously technical, it is a small footnote that has captured the public’s imagination: a direct reference to the theological implications of his mathematical discovery. A universe without ‘outside’. To understand the reference that has been made to God, we must first understand the conclusion of the document. Harlow and his team address the quantum gravity problem in a closed universe. This, unlike the usual theoretical models that have “borders”, a closed universe It doesn’t have edges or an ‘exterior’ or anything.. In this way, the study indicates that the universe does not have an immense variety of possible states. It is a single, static and trivial state, so whatever has happened or what will happen will be contained in a single dimension. The appearance of God. This is where the phrase that has shaken the networks comes in, since they affirm that if we are in a closed system with only one possible state, there is no place for an external observer. That is, a God. This is something that clashes quite a bit with traditional physics and many theological and religious conceptions that suggest that there is someone or something that is observing the system with all its changes. Although for researchers, these implications are an exercise for the reader. They just give their own conclusion. The meaning. As reported by media such as IFLScience and Knewzthis comment is a humorous but profound “wink”. It is not that the article attempts to prove or disprove the existence of a deity, but rather it points out a structural paradox. What they point out is that if the universe contains everything and its state is unique, you cannot be “outside” it. Something that quite clashes with the classic theistic idea of ​​a God who exists separately from his creation, but who observes it from the outside. The problem is that for these scientists there is no outside. Your opinions. The physicist and popularizer Brian Cox qualified the document and its bold footnote as “exhilarating”, highlighting how a purely mathematical question about Hilbert spaces ends up bordering on questions that used to be the exclusive domain of metaphysics. The paradox. The article in this case raises a fascinating dichotomy that some philosophers of physics are already analyzing. What they propose is that if the “eye of God” sees the universe, they will only see a static point without any type of change. But from within we see a rich, chaotic and complex universe as we experience all its properties. The authors solve this mathematically using quantum code theory and holography, suggesting that complexity is an illusion of internal perspective. But the theological joke remains: if God is the fundamental reality, then reality is incredibly simple. It is we who complicate it by observing it from within. Images | Davide Cantelli In Xataka | The Hand of God trying to reach a galaxy: an impressive image in which not everything is what it seems

Pebble wants us to carry an “external memory” for the brain on our finger

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There are everyday moments when a fleeting idea crosses our mind and we know that if we don’t save it instantly, it will probably disappear without a trace. It can happen while we are cycling, cooking or simply walking with our hands busy, when taking out the cell phone is inconvenient or outright impossible. That feeling of losing something that seemed important has led some companies to explore an unexpected solution: turning the index finger into a place to capture quick thoughts before they escape. The fear of forgetting what is important. For Pebble, the challenge is not just in coming up with an idea out of the moment, but in how often it happens. Its founder states that it happens to him between five and ten times a day, and that the most frustrating thing is not the idea itself, but the subsequent certainty of having forgotten something without being able to recover it. That recurring sensation is what, according to the company, justifies finding a more direct mechanism to record brief thoughts before their context is lost. A notepad ring. The device proposed by Pebble, the Index 01takes the form of a compact ring, built in stainless steel and equipped with a physical button and a microphone. By pressing it, the user can capture a short voice note immediately. It is available in various colors and sizes, and has water resistance to withstand continued use. Its main function is to offer a quick entry point to save information without depending on the phone at the exact moment it arises. From finger to app: Each recording begins with a press of the button, which activates the ring microphone and saves the audio to its internal memory, without any additional processing. When the phone is nearby, the recording is transferred via Bluetooth and that’s where all the work happens: the Pebble app converts voice to text using a recognition model that works locally, and then an LLM that also runs on the phone itself determines whether to create a note, set a reminder or add an event to the calendar. It never plugs in, but it runs out: Pebble opts for a silver oxide battery similar to what hearing aids use, allowing the ring to run for years without needing to be recharged. According to the company, an average use of between ten and twenty daily recordings of a few seconds is equivalent to about twelve or fifteen hours of accumulated audio, enough to achieve that long autonomy. When the stack nears the end, the app notifies the user, who can purchase another ring and send the previous one for recycling. The approach means that the battery cannot be replaced or recharged, something Pebble openly acknowledges. When the end-of-life notice arrives, the user must purchase a new ring. As we say, the company offers the possibility of sending the old device for recycling, but does not mention discounts, replacement programs or return compensation, so the replacement apparently works as a separate purchase. Pebble insists that the ring is designed to process information locally and limit its scope to what is strictly necessary. The connection between the device and the mobile is encrypted, and both the speech-to-text conversion and the classification using a language model occur on the phone itself and, by default, do not require sending the data to external servers, although the company offers an optional cloud backup system for recordings that is still in development and plans to offer encryption. The ring does not listen continuously or record health data, and it does not integrate a speaker or vibration. Its operation is limited to the moment in which the user keeps the button pressed. When memory lets itself be hacked. Beyond recording notes, Pebble allows you to configure the ring to perform additional actions with single or double presses, from controlling music to taking a photo or activating home automation routines. The app supports sending reminders to services like Notion and offers support for over 99 languages. The company also describes an action system based on MCP, small extensions that run on the mobile itself and that, according to its roadmap, should expand what the device can do without depending on a central server. From watch to ring: Pebble is going through a relaunch phase in which it seeks to expand its catalog beyond smartwatches. After recovering your brand and sending your new Pebble 2 Duoprepares the arrival of Pebble 2 Time with a significant level of prior demand. In that scenario Index 01 appears. The founder himself summarizes its bet stating that the ring has ceased to be a technological device and has become “an extension of the brain”, a phrase that reflects the ambition with which the company presents this project. Price and availability of Index 01. The company puts the starting price at $75 during pre-sale, with a rise to $99 when the first units begin shipping globally starting in March 2026. The device is in the design validation phase and is produced in the same plant that works with Pebble Time 2, where the current prototypes are assembled. Shipments will depart from Asia under a DDP system, so taxes and duties will be handled prior to delivery. Images | Pebble In Xataka | We have tested the new Google glasses with Gemini: AI and today’s technology drive the dream that Glass promised

Facebook loads ‘Likes’ and comments on external websites. The surveillance tool par excellence is no longer necessary

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Meta announced this week that Starting in February 2026, the “like” and “comment” buttons will be removed of Facebook on external websites. The official explanation is so polite it almost hurts: its use “has naturally declined with the evolution of the digital landscape.” But that phrase hides two implicit admissions: The first is known: we barely leave the platforms anymore. The second, more subtle, is devastating: Meta no longer needs to follow us to know us. Let’s think about what that button really was. like external. It was not an innocent social accessory. It was distributed surveillance: Every time you gave like to an article about vintage guitars in a lost blog, Facebook took note: this guy likes guitar playing. Every comment on a recipe website, every interaction outside your garden, fed your profile. Meta built the perfect panopticon: millions of websites working for free as sensors, reporting your interests, your obsessions, your clicks. And in exchange, those websites received crumbs of viral traffic that It stopped coming a long time ago. But today, almost in 2026, that spy system is obsolete. Why track yourself on the Internet when you spend three hours a day on Instagram? Why deduce your tastes when Instagram knows which videos make you stay to watch them until the end, and which videos you send away after two seconds? AI has made extensive surveillance unnecessary. Now it is enough to observe you in its territory. It is more efficient, more precise and cheaper. He like external was Big Brother. AI is a confessor that listens to you voluntarily, interprets and codifies your tastes (the declared and the inferred) and with that it has more than enough to know who you really are, above who you say you are on social networks. And there is something else. These buttons not only gave data to Meta: they also gave certain power to external websites. An item with 50,000 likes Facebook had authority, reach, and negotiating capacity. It was validation. Small media could go viral, specialized blogs found audiences, there were cracks to slip through. Meta is closing those cracks. And not out of malice, but out of business logic: why fertilize a foreign ecosystem when you can focus all your attention—and all your money—on your own land? The “natural evolution of the digital landscape” that Meta mentions is real. Only it has not happened in a vacuum or in a foreign way: they were the ones who designed it, they were the ones who executed it and they are the ones who now certify it. First they locked us in there. Now they know us so well that they no longer need to look at what we do outside their domains. The button like He dies because he has already won everything he could win. And there is nothing left to watch beyond the walls. In Xataka | The new Ray-Bans from Meta will allow you to cross a line: seem present while you are completely absent Featured image | Mariia Shalabaieva

Normal, with solar load and crank. Five external batteries to have the mobile loaded during a blackout

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Behind him Mass blackout That we suffer yesterday throughout the Peninsula, it has become clear that it is convenient to have one or more PowerBank (or external batteries) at home so that at least I can have the mobile with drums. But … which one to choose? In this article we have gathered different external batteries that can be very useful at a time with which we live yesterday with a light cut of many hours. IPOSIBLE WITH SOLAR LOAD by 35.95 euros With coupon, an external battery with solar panels. ANKER LAPTOP by 99.99 eurosan external battery that allows recharging to laptops. Xiaomi Redmi Fast Charge Power Bank by 14.99 eurosa very cheap external battery that has a good load capacity. Wastde with solar load and crank by 59.99 eurosan external battery designed to use it at all times. Anker Zolo by 20.89 eurosan external pocket battery with 30W load. IPOSIBLE WITH SOLAR LOAD One of the most interesting proposals of this list is External Iposible batterywhich is at Amazon at a price of 39.95 euros, although selecting the store coupon stays in 35.95 euros. And it is interesting because its capacity of 26,800 mAh is recharged by solar load, so we can be ready even if we have no light. Comes with four waterproof solar panels that can be folded, includes several USB ports (both USB-C as USB-A and Microusb) and its construction offers water resistance, blows and dust. The brand mentions that the battery offers more than 1,600 load life cycles. * Some price may have changed from the last review ANKER LAPTOP On the other hand, if what we are looking for is an external battery that even allows us to recharge a laptop (useful if the light cut has caught us when we were working), the ANKER LAPTOP It can be a very good purchase option. Costs 99.99 euros in Amazon and is very complete. The Anker Laptop is an external battery that comes with a capacity of 25,000 mAh. Includes three USB-C ports and offers a loading power up to 100Wso you can recharge a good assortment of devices. In addition, it allows recharging up to four devices at once. * Some price may have changed from the last review Xiaomi Redmi Fast Charge Power Bank If what we are looking for is an external economic battery, but also very useful, the Xiaomi Redmi Fast Charge Power Bank Right now it costs 14.99 euros In the official store. In addition, it comes with a capacity of 20,000 mAh, offers a power of 18W. Xiaomi’s external battery comes with a couple of USB-A ports, a USB-C port and another microusb. It also has temperature protectionagainst the short circuits, against overcurrent and also against the overtheions. Xiaomi Redmi Fast Charge Power Bank * Some price may have changed from the last review Wastde with solar load and crank Another of the most interesting proposals of this list is the Wastde external batterywhich comes both with solar load and with a crank. Its price at Amazon is 59.99 euros and stands out mainly for these two reasons: it can be recharged through the solar load or using the crank (very useful for the night). In addition to this, it comes with three output cables (Lightning, USB-C and Microusb) and three output ports (two USB-A and a USB-C). It allows to recharge many devices at the same time, has a capacity of 26,800 mAh and includes a flashlight with three modes: SOS, strobe and continuous. Wastde with solar load and crank * Some price may have changed from the last review Anker Zolo If what we are looking for is an external pocket battery that occupies very little space, the Anker Zolo It can be a very good purchase option. It is located at a price at a price of 20.89 euros And it can be stored practically in any pocket, since its dimensions are approximately 119.9 x 73.4 x 31.4 mm. In addition to this, the external battery offers a 30W load powerincludes an integrated USB-C cable, its capacity is 10,000 mAh and can be recharged in a short time thanks to its 20W power. * Some price may have changed from the last review Some of the links of this article are affiliated and can report a benefit to Xataka. In case of non -availability, offers may vary. Images | IPOSIBLE, ANKER, XIAOMI, WASTDE In Xataka | What do you need (according to the EU) for your survival kit and how much can it cost you? In Xataka | Best Power Bank to load your mobile phone. Which to buy and recommended external batteries

Goal has taken the first step to dismantle its external verification system. And he has done it with an X algorithm

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Shortly before Donald Trump returned to the White House, Mark Zuckerberg announced What a goal would end his Third Party Data Verification Program And I would bet on a system of community notes in the purest X style, the social network of Elon Musk, one of the leading allies of the new president. With this decision, goal sought Leave in the hands of users The task of pointing out and contextualizing misinformation on Facebook, Instagram and Threads. When Zuckerberg made the announcement, it was clear that, although the company pointed out with this new approach, its implementation would gradually begin in the United States. There were no indications of a possible deployment in the European Union, where the Digital Services Law could mean an obstacle. Now, with more details about the initial launch, we can get a better idea of ​​its operation. Fixed goal in the calendar the beginning of its new initiative. The social networks giant He said that It will begin to test the community notes on March 18. That is, in less than a week, this new approach will take its first steps. As planned, the deployment will be gradual and will be limited, for now, to the United States. From that day, the program taxpayers will begin to leave their collaborations. How will the system work? The community notes system in Meta allows users to add context to publications that can be misleading or need additional information. However, not any note is published immediately: there is an evaluation process that, as explained by Meta, seeks to ensure that contributions are useful and reflect different perspectives. A collaborator detects a publication on Facebook, Instagram or Threads that needs context. For example, a viral post says: “Bats are completely blind and depend only on sounding to move.” The collaborator writes an explanatory note. It must have a maximum of 500 characters and include a link to a reliable source. Example: “It is a common myth. Bats are not blind; They have good vision and combine ecolocation, hearing and smell to adapt to different environments. More info here: (Link). “ Other collaborators check the note and vote if it is useful. It is not published automatically. You must have the support of people with different perspectives, not just with a majority. If the note receives enough support, it is published. It appears next to the original publication to give context. The publication about bats is still visible, but with the explanatory note. Goal will use the X algorithm. The company led by Mark Zuckerberg has chosen to use, in a first stage, the algorithm of the notes of the community of X. This system, which promotes a similar function in the social network previously known as Twitter, is open source and It is available in githubwhich allows anyone to audit and reuse it. However, the adoption of the X algorithm by goal is not a definitive step. The company plans to take it as a basis for developing its own version. “As our own version develops, we may explore different or tight algorithms to support the way in which the community notes are classified and described.” No scope penalty. Goal ensures that its new system against misinformation will not punish the distribution of publications. Unlike the old fact verifiers program, where the marked contents could lose visibility, the community notes will only add context without affecting who can see them or how far they can go. But the notes will not appear yet. As we have said, the community notes system will begin to take its first steps on Facebook, Instagram and Threads this month, but users will not see them yet. It is an evaluation phase. The idea is that the deployment occurs has taken the first step to dismantle its external verification system. And he has done it with the X algorithm when the company is sure it works as a wait. During this period, they plan to make more adjustments and improve the system. Old system verification labels will continue to appear in the United States until the new system begins to deploy generalized in that country. And what will happen in Spain? Although the Meta External Verification Program began in 2016, did not land in Spain until 2019. In the country, the multinational continues to have verifiers such as Newtral, Maldita.es and AFP, which continue with their usual work. Meta ensures that its intention is to expand community notes globally, but it remains to be seen how possible challenges related to European legislation. Images | Goal | Gage Skidmore In Xataka | Goal has fired 35,000 workers in five years. And many of them fear having entered their “black lists”

Deepseek closes external investments and risk capital. You have three reasons to do it

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Deepseek, The great sensation of the beginning of the year in AIhe is breaking with all the rules of the startup ecosystem not only for his efficient AI modelbut also for rejecting the risk capital that other competitors need such as eating. Its founder, Liang Wenfeng, maintains 84% ​​of the property (an anomaly in its field) and does not seem to be in a hurry to give control. Chinese technology broke into the industry in January With its new AI model, but unlike its competitors, it does not announcing multimillionaire financing rounds. Nor want to do it, according to anti The three reasons. Liang Wenfeng has clear reasons to keep investors at bay: 1. He does not want to lose control of his long -term vision on AI.2. Depseek has sufficient its own financing through its High-Flyer investment fund.3. He fears that external investors, especially Chinese, intensify concerns about privacy and security. Why is it important. In a sector where competitors are launched to capture thousands of millions to finance the expensive AI race, Depseek is betting on an alternative path. Financial independence also gives Deepseek freedom to focus on research and development, instead of seeking rapid monetization that investors usually demand. Between the lines. Liang does not usually hide his distrust of investors. In a 2023 interview He openly criticized the obsession of venture capital funds by rapidly monetizing AI, to the detriment of advanced research. This position symbolizes a growing skepticism in the technological sector about whether the traditional financing model is compatible with the development of long -term transforming technologies. The figures. The Deepseek owned structure is unusual for such a powerful startup: 84% is owned by Liang Wenfeng, the founder. 16% are in the hands of people linked to their investment fund, high-flyer. 0% is of traditional external investors. In detail. Liang has funded Deepseek with the benefits of High-Flyer, its quantitative investment fund. “Money has never been a problem for us; the problem is in the prohibitions for sending advanced chips,” he said in 2023. This financial self -sufficiency has allowed Deepseek to develop without the usual external pressure of investors, usually focused on short -term growth metrics. The backdrop. As a Chinese company, Depseek operates under laws that give the Government broad access to their data. This has already caused prohibitions of use in several countries and private companies. The entry of Chinese investors could get this situation worse. The US government has history by sanctioning Chinese technology with government ties, such as Huawei and DJI. And now what. Deepseek will need more and better AI chips to stay competitive, according to Liang himself. These components are expensive and are strongly restricted in China due to the export controls of the United States. Without external financing, Depseek could be left behind in the technological career against rivals with more resources, such as OpenAi or Anthropic. Of course If someone has demonstrated ingenuityIt is Deepseek. In Xataka | Manus is the new sensation of China after Deepseek. Is generating as many expectations as doubts Outstanding image | Deepseek + Philipp Katzenberger | Alejandro Luengo

Makes external battery for mobile

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There are manufacturers who try to differentiate themselves from original ideas and it is very much appreciated. HMD, the Finnish company that Until recently Nokia’s phoneswe were surprised during this Mobile World Congress with a device as simple as it is striking. And useful. Because in the end that is what we all look for. May technology help us. Next to Fusion X1 have presented the new HMD Amped Buds. Wireless headphones with noise cancellation. They offer high resolution audio, 95 hours of playback and have 10mm controllers. But it is none of these characteristics that make it unique in the market. The first with reversible wireless load. The HMD Amped Buds are the first headphones whose load base also serves to load the mobile. To date, the case served to load the headphones themselves, but HMD has concluded that that battery can be used for something else. Compatible with any mobile with wireless load. And what better than loading the mobile. Although stylized, the HMD Amped Buds case has reverse wireless load, to be able to load any mobile that admits wireless load. The case is very light. It has a weight of 78 grams, a thickness of 14.3mm and a height of 74mm. To get an idea, it is somewhat less than half of a standard mobile. And the case of magnetically hooks on the back cover of the mobile. We simply approach and voila, we already have an external emergency battery. Perfect for an emergency. Let’s not think that we will have an external battery with a great capacity. It is simply to load the headphones (up to 11 times) or to load the mobile at a timely moment. Its capacity is 1,600 mAh. The battery also has a USB-C port, in case we simply want to load the cable mobile. Headphones manufacturers, take note. After having been able to try these headphones, whose price is 199.99 euros, I must say that they seem to me to follow closely. I have not had the opportunity to check its sound quality, but to try its ultrafine load case and test the wireless load with a pixel and an iPhone. The result has works as one expects. To the first. In my case I usually use the JBL Tour Pro 3 And they seem to me a very curious option for their external screen. But in fact it does not seem to me a sufficient justification to have that large load case. If all manufacturers take note of this idea of ​​case with reversible wireless load, we will win. Since we have to have a battery for our headphones, what less that also serves us for the mobile. In Xataka | Someone has created headphones that do not need adapter to charge. They do it for photosynthesis

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