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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

Category: Technology
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  • Are You Sure You Want a Car With a Giant Touch Screen?
    by BeauHD on 21/08/2026 at 3:30 am

    RAMageddon could soon push car prices higher as modern vehicles rely on ever more RAM and powerful centralized computers to run everything from infotainment to driver-assistance systems. Analysts cited by The Atlantic estimate the shortage could add a few percentage points to vehicle prices, which might not sound like much, but could potentially translate to around $2,000 on a $50,000 vehicle. The broader shift toward software-heavy vehicles could also make used cars even less affordable. An anonymous reader quotes an excerpt from the report: Just like laptops, cars depend on microprocessors and RAM, or random-access memory, to run all of their computations. "There's just a baseline level of tech, and thus a baseline level of cost, required of every vehicle," Karl Brauer, the executive analyst at iSeeCars, an automotive-research platform, told me. Technology is a major reason the average price of a new car in the U.S. has reached some $50,000, and that was before RAM became one of the most prized commodities in the world. AI companies are snatching up as much memory as possible for their data centers, causing a RAM shortage that has significantly raised the prices of phones, laptops, and just about any consumer-electronic device. Cars are next. [...] Over the next year, the memory shortage -- sometimes known as RAMageddon -- will likely raise vehicle prices by a few percentage points, on average, [said Sam Abuelsamid, an analyst at Telemetry and a former automotive engineer]. The relative amount would be smaller than the shocking double-digit jumps for gaming consoles and MacBooks but in some ways more significant: A 4 percent price hike for cars amounts to some $2,000 on average. Cars with those centralized computers will be affected the most, but no vehicle will be spared. "Even if you don't need the high-end chips, you're going to pay more even for the low-end chips just because of the supply constraint," Abuelsamid said. On a recent earnings call, Ford's chief financial officer said that the company had paid $1 billion in higher materials costs due to the memory shortage and inflation. GM and Volkswagen, too, have noted rising chip costs to investors. (Ford and GM did not respond to a request for comment. A spokesperson for Volkswagen told me that the company has "recognized an increased demand for memory chips, primarily driven by growing requirements in other industries," and that in recent years, Volkswagen has taken measures to "mitigate supply risks.") RAMageddon is poised to last for several years, but the consequences for car buyers may be permanent. Consider what happened during the pandemic, when supply-chain disruptions and rising demand for electronics produced a major chip shortage. Nearly every major car company had to slash production because they simply couldn't procure enough chips, and shifted their focus to selling higher-end and higher-profit vehicles. Potential customers already willing to spend six figures on a car are much less likely to care about a 5 or 10 percent price hike, [said Ivan Drury, the director of insights at Edmunds]. Even now, car companies are continuing to focus on selling more profitable models. Since the pandemic, the average price of a new vehicle has jumped $11,000. The AI-fueled chip crisis could play out more severely. The average price of a new car could, before long, jump to $60,000 and beyond. These rising costs are making cars even more similar to computers and all of the software they run: Perhaps in an effort to mitigate higher prices, some automakers are also introducing in-car advertisements and putting certain features, such as heated seats, behind a paywall. As cars have morphed into computers, the inevitable next step is for automakers to behave like modern tech companies. Read more of this story at Slashdot.

  • China's YouTube Rival Bilibili Is Going Global
    by BeauHD on 20/08/2026 at 11:00 pm

    Bilibili, often described as China's answer to YouTube, is relaunching its international app and preparing an English-language site as part of a broader push into the U.S., Europe, Japan, and other markets. The company is courting Western creators like MrBest, hiring community and moderation staff globally, and building tools for brand partnerships. Semafor reports: The revamped international app no longer requires identity verification -- meaning users can sign up without having to provide a passport or ID document, which were long required of overseas users on its main Chinese platform, according to what appears to be a newly created account on X marketing the platform to global creators. "Yes bilibili is going global," the account wrote, adding that content-wise, the US and Chinese sites will be the same. In a document recently shared in a Discord chat for Bilibili creators, the company pitched itself as a place for influencers to make money and connect with "Gen Z Coded, affluent and well-educated" users. A marketplace for international users to connect with brands for sponsored content is "in development," according to the presentation. The deck also showed creators how to post videos on its Chinese website, adding that an English version is "coming soon. We are working hard." Read more of this story at Slashdot.

  • Watching TikTok Videos and Instagram Reels Deactivates the Brain's Cognitive Control Network
    by BeauHD on 20/08/2026 at 10:00 pm

    An anonymous reader quotes a report from RathBiotaClan: Millions of people finish short video after short video every day; a new brain-scan study shows that the very act of finishing a clip they like temporarily quiets the brain regions that normally help them stay focused and weigh longer-term goals. When people watch a short video they enjoy enough to finish, two brain regions involved in cognitive control show significant deactivation. That is the central finding of a new study from Zhejiang University, published in NeuroImagein January 2026. Using functional MRI alongside proton magnetic resonance spectroscopy (H-MRS), the research team examined 56 young adults while they freely watched short video clips inside an MRI scanner. Both the dorsal anterior cingulate cortex (dACC) and the dorsolateral prefrontal cortex (dlPFC) showed reduced activity specifically when participants watched clips they liked enough to view to completion. Cognitive control helps people balance immediate pleasures against longer-term goals, and impairments in this system are linked to conditions such as depression, anxiety, ADHD, and addiction. Short-video platforms present rapid, algorithmically curated streams that are built for continuous, low-effort consumption. Prior behavioral research has tied both internet addiction and smartphone addiction to weaker self-control, and separate neuroimaging work has documented disruptions to reward and cognitive-control circuits in people with behavioral addictions. Despite this, few studies had directly tested whether the act of watching entertaining short videos itself suppresses the brain's cognitive control regions. The Zhejiang University team set out to answer that question, along with a second one: what neurochemical factors might explain why this suppression varies from person to person? Read more of this story at Slashdot.

  • Ukrainian Publishers Call For Support After Russian Attacks Destroy 10 Million Books
    by BeauHD on 20/08/2026 at 9:00 pm

    Russian attacks on Ukrainian publishing infrastructure in July and August destroyed roughly 10 million books, which equates to about 30% of Ukraine's annual book output. The Ukrainian Book Institute is warning of a potential "collapse of the entire book ecosystem" and is calling for international financial and industry support to help publishers, printers, and distributors recover. The Guardian reports: A major attack on August 1 hit warehouses belonging to the RNK-Ranok publishing group in Kharkiv, destroying approximately 8m books, following July attacks in Kyiv which led to the loss of more than 1.5m books. In all, the recent attacks have led to the destruction of approximately 30% of the volume of books produced annually in Ukraine. The RNK-Ranok logistics centre, which stores books for the company's many imprints, is also the distribution centre for the national bookselling chain KnyhoLand, which runs 51 shops and several websites. Along with the estimated 8m books lost, a further 600,000 school textbooks were destroyed. The total loss has been preliminarily estimated at almost 1bn hryvnias (16.5m eueros). "At this stage, we face the risk of the collapse of the entire book ecosystem," said Oleksandra Koval, director of the Ukrainian Book Institute. The institute is asking for donations to support Ukrainian publishers, and is calling on the international publishing community to work with Ukrainian publishers and raise awareness about Russian attacks on Ukrainian culture. On August 16, a Russian attack on Kyiv led to a fire breaking out at the Pochaina book market, destroying several rows of stalls, books and vendors' property. The Pochaina market, founded in 1997, was once one of Ukraine's largest book markets, with hundreds of stalls and books from more than 120 publishers. The institute said the book industry was of "strategic importance" to Ukraine, preserving and promoting Ukrainian culture and giving the country's voice a platform at home and abroad. [...] The institute also called for an end to cooperation with Russian publishers and literary agencies, saying that solidarity with Ukrainian publishers was crucial to preserving cultural heritage that Russia was "deliberately trying to destroy." Read more of this story at Slashdot.

  • Voters Aren't Waiting For November to Try Ousting Officials Over Data Centers
    by BeauHD on 20/08/2026 at 8:00 pm

    A growing backlash against AI data centers is spilling into local politics, with residents in more than a dozen communities pushing recall elections against officials who approved projects. "People are standing up and saying, 'Sorry, we don't want these data centers in our communities for a number of reasons,'" Senator Bernie Sanders, the Vermont independent, said in an interview. "'If you can't have the guts to stand up to some large corporation, you should not continue serving in office.'" The New York Times reports: In Festus, Mo., critics of a local data center project gathered enough signatures in May to force a vote to remove the mayor and City Council members who had approved a $6 billion data center, though the effort is tied up in legal wrangling. In Mason, Mich., residents will vote in November over whether to recall a City Council member over a vote to create zoning rules for data centers. Voters in Yukon, Okla., will also decide in November whether to recall their mayor after the town moved to sell land to a data center developer. And residents of Independence, a city of 121,000 that is 10 miles from Kansas City, will vote on whether to remove Mr. Perkins on Sept. 1. Some local officials have already lost their jobs in the face of data center concerns in regularly scheduled elections. Last year, two members of the Georgia Public Service Commission lost their seats amid concern about data centers' driving up electricity prices. A Virginia state delegate, Geary Higgins, also lost his job last year after his opponent branded him "Data Center Geary." [...] Independence would be one of the first municipalities to hold a data-center-motivated recall election. A judge this month rejected a legal challenge by Mr. Perkins and others, who argued the recall violated Missouri's Constitution. Read more of this story at Slashdot.

  • Does Using AI to Edit an Op-Ed on Students' Math Skills Undermine the Argument?
    by BeauHD on 20/08/2026 at 7:00 pm

    An anonymous reader quotes a report from The Guardian: A math professor at the University of California, Berkeley, criticizing a "severe" math deficiency among students in an op-ed for the San Francisco Standard, admitted to using artificial intelligence to help edit the piece. The Standard published a 2,000-word piece by Zvezdelina Stankova last week, in which the professor said some of her math students were "five to eight years" behind and lacked a "middle school" education on fractions and basic algebra. Stankova said the UC system's test-blind admissions were to blame, suggesting that students who weren't sufficiently prepared for the rigor of Berkeley's mathematics program were admitted because a longstanding benchmark like the SAT had disappeared. Over the weekend, journalists at Berkeley's student newspaper, the Daily Californian, noticed the op-ed's language sounded like AI. According to Berkeley sophomore Francis Luo, they ran it through AI-detection software Pangram, which claimed 33% of the op-ed had been generated or assisted by AI. In response, Stankova admitted she had used AI software to "help edit the piece" but that the article was "the result of several hundred person-hours of intensive human work, of which about 80 hours are my own." Stankova said by email she had used AI to locate "numerous documents and articles related to the initiative" but that "all analysis is the result of the team members." When asked about their AI usage policy, the Standard -- which published the op-ed -- shared this statement by email: "While AI may assist, our expectation is that humans are behind every article we publish and take responsibility for every word. Our understanding in working with the author of this op ed was -- and continues to be -- that this piece reflects her and her colleagues' extensive original analysis, research and expertise." Should the op-ed have been entirely written without artificial assistance or is the use of AI a distraction from the argument at hand? That's the question at the heart of the debate playing out online. According to the op-ed, Stankova and her peers found that the number of students with a "severe deficit" in their readiness for a calculus I class had tripled after the University of California adopted test-blind admissions. Some students were allegedly five to eight years behind and struggling with basic algebra and fractions, among other concepts. Much of that decline, Stankova argues, is from the removal of standardized tests like the SAT and ACT, which served as important benchmarks for identifying whether applicants were prepared for Berkeley-level coursework. Read more of this story at Slashdot.

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