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Perplexity, a startup going after Google's dominant position in web search, has won backing from Jeff Bezos and venture capitalists betting that artificial intelligence will upend the way people find information online. From a report: Started less than two years ago, Perplexity has fewer than 40 employees and is based out of a San Francisco co-working space. The company's product, which it calls an answer engine, is used by about 10 million people monthly. Those ingredients were enough to persuade Institutional Venture Partners, Bezos and other tech executives to invest $74 million in the company, the largest sum raised by an internet search startup in recent years. The investment valued Perplexity at $520 million, including the new money, said Chief Executive Officer Aravind Srinivas. Amazon.com, the e-commerce company chaired by Bezos, has committed to investing billions in Anthropic, the AI startup behind the chatbot Claude. The path to competing with Google is littered with carcasses, and Microsoft itself has struggled for years to dislodge the company's roughly 90% market share in online search. Others, including tech giants, are incorporating AI into their search engines. Perplexity's founders said their advantage is using advances in AI to provide direct answers, instead of website links, in response to search queries, without some of the limitations felt by larger companies.

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From a report: According to Statcounter, which should be taken with a pinch of salt of course like any sampling, the Linux share on the desktop hit nearly 4% in December 2023. Last month was a record too and a clear trend over time, as going back a couple of years, it was rarely coming close to 2% but now it's repeatedly nearing 4% so it's quite a good sign overall. The latest from Statcounter shows for all of 2023 below: January - 2.91% February - 2.94% March - 2.85% April - 2.83% May - 2.7% June - 3.07% July - 3.12% August - 3.18% September - 3.02% October - 2.92% November - 3.22% December - 3.82% Looking at December it shows Windows rising too, with macOS dropping down. If we actually take ChromeOS directly into the Linux numbers for December 2023 the overall number would actually be 6.24% (ChromeOS is Linux after all).

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Microsoft is adding a dedicated "Copilot" key to PC keyboards, adjusting the standard Windows layout for the first time since 1994. The key will open its AI assistant Copilot on Windows 10 and 11. On Copilot-enabled PCs, users can already invoke Copilot by pressing Windows+C. On other PCs, the key will open Search instead. ArsTechnica adds: A quick Microsoft demo video shows the Copilot key in between the cluster of arrow keys and the right Alt button, a place where many keyboards usually put a menu button, a right Ctrl key, another Windows key, or something similar. The exact positioning, and the key being replaced, may vary depending on the size and layout of the keyboard. We asked Microsoft if a Copilot key would be required on OEM PCs going forward; the company told us that the key isn't mandatory now, but that it expects Copilot keys to be required on Windows 11 keyboards "over time." Microsoft often imposes some additional hardware requirements on major PC makers that sell Windows on their devices, beyond what is strictly necessary to run Windows itself.

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A bestselling personal finance author and entrepreneur admits that he has more than $1 billion in debt -- and he doesn't think that's a bad thing. From a report: "If I go bust, the bank goes bust," said "Rich Dad, Poor Dad" author Robert Kiyosaki in a Nov. 30 Instagram reel. "Not my problem." That's because his debt has been used to purchase assets, he said in the video. He compared that with using debt to purchase liabilities, such as his Ferrari or Rolls-Royce vehicles -- expenses he's paid off in full, he said. "I'm a billion dollars in debt because debt is money," Kiyosaki said during an interview on the "Disruptors" podcast. It connects to his strategy of using cash earnings to purchase precious metals like gold or silver, which Kiyosaki argues will retain their value while the U.S. dollar fluctuates: "toilet paper," he called it. Kiyosaki is one of the country's most well-known personal finance personalities. His 1997 book "Rich Dad, Poor Dad," which was originally self-published, has sold more than 40 million copies.

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SpaceX launched a total of 21 satellites on Tuesday night, including "the first six Starlink satellites with Direct to Cell capabilities that enable mobile network operators around the world to provide seamless global access to texting, calling, and browsing wherever you may be on land, lakes, or coastal waters without changing hardware or firmware. The enhanced Starlink satellites have an advanced modem that acts as a cellphone tower in space, eliminating dead zones with network integration similar to a standard roaming partner," the company said. Ars Technica reports: Besides T-Mobile in the US, several carriers in other countries have signed up to use the direct-to-cell satellites. SpaceX said the other carriers are Rogers in Canada, KDDI in Japan, Optus in Australia, One NZ in New Zealand, Salt in Switzerland, and Entel in Chile and Peru. While SpaceX CEO Elon Musk wrote that the satellites will "allow for mobile phone connectivity anywhere on Earth," he also described a significant bandwidth limit. "Note, this only supports ~7Mb per beam and the beams are very big, so while this is a great solution for locations with no cellular connectivity, it is not meaningfully competitive with existing terrestrial cellular networks," Musk wrote. Starlink's direct-to-cell website says the service will provide text messaging only when it becomes available in 2024, with voice and data service beginning sometime in 2025. Starlink's low Earth orbit satellites will work with standard LTE phones, unlike earlier services that required phones specifically built for satellite use. SpaceX's direct-to-cell satellites will also connect with Internet of Things (IoT) devices in 2025, the company says.

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fahrbot-bot shares a report from The Guardian: Scientists have discovered an entirely new class of antibiotic that appears to kill one of three bacteria considered to pose the greatest threat to human health because of their extensive drug-resistance. Zosurabalpin defeated highly drug-resistant strains of Carbapenem-resistant Acinetobacter baumannii (Crab) in mouse models of pneumonia and sepsis, and was being tested in human trials. Crab is classified as a priority 1 critical pathogen by the World Health Organization, alongside two other drug-resistant forms of bacteria -- Pseudomonas aeruginosa and Enterobacteriaceae. Antibiotic-resistant infections pose an urgent threat to human health -- particularly those caused by a large group of bacteria known as Gram-negative bacteria, which are protected by an outer shell containing a substance called lipopolysaccharide (LPS). "LPS allows bacteria to live in harsh environments, and it also allows them to evade attack by our immune system," said Dr Michael Lobritz, the global head of infectious diseases at Roche Pharma Research and Early Development in Basel Switzerland, which developed the new drug. No new antibiotic for Gram-negative bacteria have been approved in more than 50 years. Roche had previously identified Zosurabalpin as capable of blocking the growth of A baumannii but it was not clear how it worked, or if it would be effective in animals with Crab-related infections. Through a series of experiments published in Nature, Prof Daniel Kahne at Harvard University in Cambridge, US, and colleagues showed that the drug prevented LPS from being transported to the outer membrane of the bacterium, killing it. They also found that Zosurabalpin considerably reduced levels of bacteria in mice with Crab-induced pneumonia and prevented the death of those with Crab-related sepsis. While [Lobritz] stressed that this molecule alone would not solve the public health threat of antimicrobial resistant infections, the discovery could lay the foundations for future efforts to drug the same transport system in other bacteria.

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An anonymous reader quotes a report from Technology Networks: At about the size of a pinkie nail, the jellyfish species Cladonema can regenerate an amputated tentacle in two to three days -- but how? Regenerating functional tissue across species, including salamanders and insects, relies on the ability to form a blastema, a clump of undifferentiated cells that can repair damage and grow into the missing appendage. Jellyfish, along with other cnidarians such as corals and sea anemones, exhibit high regeneration abilities, but how they form the critical blastema has remained a mystery until now. A research team based in Japan has revealed that stem-like proliferative cells -- which are actively growing and dividing but not yet differentiating into specific cell types -- appear at the site of injury and help form the blastema. "Importantly, these stem-like proliferative cells in blastema are different from the resident stem cells localized in the tentacle," said corresponding author Yuichiro Nakajima, lecturer in the Graduate School of Pharmaceutical Sciences at the University of Tokyo. "Repair-specific proliferative cells mainly contribute to the epithelium -- the thin outer layer -- of the newly formed tentacle." The resident stem cells that exist in and near the tentacle are responsible for generating all cellular lineages during homeostasis and regeneration, meaning they maintain and repair whatever cells are needed during the jellyfish's lifetime, according to Nakajima. Repair-specific proliferative cells only appear at the time of injury. "Together, resident stem cells and repair-specific proliferative cells allow rapid regeneration of the functional tentacle within a few days," Nakajima said, noting that jellyfish use their tentacles to hunt and feed. [...] The cellular origins of the repair-specific proliferative cells observed in the blastema remain unclear, though, and the researchers say the currently available tools to investigate the origins are too limited to elucidate the source of those cells or to identify other, different stem-like cells. "It would be essential to introduce genetic tools that allow the tracing of specific cell lineages and the manipulation in Cladonema," Nakajima said. "Ultimately, understanding blastema formation mechanisms in regenerative animals, including jellyfish, may help us identify cellular and molecular components that improve our own regenerative abilities." The findings were published in the journal PLOS Biology.

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Longtime Slashdot reader fahrbot-bot shares a report from ScienceAlert: According to a new study [published in Nature Human Behavior], the human brain has two separate ways of processing numbers of things: one system for quantities of four or fewer, and another system for five and up. Presented with four or fewer objects, humans can usually identify the sum at first glance, without counting. And we're almost always right. This ability is known as "subitizing," a term coined by psychologists last century, and it's different from both counting and estimating. It refers to an uncanny sense of immediately knowing how many things you're looking at, with no tallying or guessing required. While we can easily subitize quantities up to four, however, the ability disappears when we're looking at five or more things. If asked to instantly quantify a group of seven apples, for example, we tend to hesitate and estimate, taking slightly longer to respond and still providing less precise answers. Since our subitizing skills vanish so abruptly for quantities larger than four, some researchers have suspected our brains use two distinct processing methods, specialized for either small or large quantities. "However, this idea has been disputed up to now," says co-author Florian Mormann, a cognitive neurophysiologist from the Department of Epileptology at the University Hospital Bonn. "It could also be that our brain always makes an estimate but the error rates for smaller numbers of things are so low that they simply go unnoticed." Previous research involving some of the new study's authors showed that human brains have neurons responsible for each number, with certain nerve cells firing selectively in response to certain quantities. Some neurons fire mainly when a person sees two of something, they found, while others show a similar affinity for their own number of visual elements. Yet many of these neurons also fire in response to slightly smaller or larger numbers, the researchers note, with a weaker reaction for quantities further removed from their numerical focus. "A brain cell for a number of 'seven' elements thus also fires for six and eight elements but more weakly," says neurobiologist Andreas Nieder from the University of Tubingen. "The same cell is still activated but even less so for five or nine elements." This kind of "numerical distance effect" also occurs in monkeys, as Nieder has shown in previous research. Among humans, however, it typically happens only when we see five or more things, hinting at some undiscovered difference in the way we identify smaller numbers. "There seems to be an additional mechanism for numbers of around less than five elements that makes these neurons more precise," Nieder says. Neurons responsible for lower numbers are able to inhibit other neurons responsible for adjacent numbers, the study's authors report, thus limiting any mixed signals about the quantity in question. When a trio-specializing neuron fires, for example, it also inhibits the neurons that typically fire in response to groups of two or four things. Neurons for the number five and beyond apparently lack this mechanism.

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New submitter axlash writes: It has been reported on X that Niklaus Wirth, inventor and co-inventor of several languages including Pascal, Euler and Oberon, died on Jan 1, 2024. He was aged 89. "We lost a titan of programming languages, programming methodology, software engineering and hardware design," writes software engineer Bertrand Meyer in a post on X. "Niklaus Wirth passed away on the first of January. We mourn a pioneer, colleague, mentor and friend." Niklaus Wirth, born on February 15, 1934, in Switzerland, is a renowned computer scientist known for his significant contributions to the field of computer science and software engineering. He is best known for developing several programming languages, including ALGOL W, Pascal, and Modula-2, which have had a profound impact on the design and development of modern computer software. Wirth's work emphasized simplicity, clarity, and efficiency in programming languages, which greatly influenced subsequent language design and the development of structured programming techniques. His legacy also includes the development of the Oberon programming language and the design of the Oberon operating system. Wirth's dedication to elegant and efficient software design continues to inspire computer scientists and software engineers worldwide, making him a highly respected figure in the history of computing. You can learn more about Wirth via A.M. Turing Award, Britannica, and the Computer History Museum.

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Alex Hern reports via the Guardian: The email newsletter service Substack is facing a user revolt after its chief executive defended hosting and handling payments for "Nazis" on its platform, citing anti-censorship reasons. In a note on the site published in December, the chief executive, Hamish McKenzie, said the firm "doesn't like Nazis," and wished "no one held these views." But he said the company did not think that censorship -- by demonetising sites that publish extreme views -- was a solution to the problem, and instead made it worse. Some of the largest newsletters on the service have threatened to take their business elsewhere if Substack does not reverse its stance. On Tuesday Casey Newton, who writes Platformer -- a popular tech newsletter on the platform with thousands of subscribers paying at least $10 a month -- became the most prominent yet. [...] Substack takes a 10% cut of subscriptions from paid newsletters, meaning the loss of Platformer alone could represent six figures of revenue. Other newsletters have already made the jump. Talia Lavin, a journalist with thousands of paid subscribers on her newsletter The Sword and the Sandwich, moved to a competing service, Buttondown, on Tuesday. Substack's leadership team said in a statement: "As we face growing pressure to censor content published on Substack that to some seems dubious or objectionable, our answer remains the same: we make decisions based on principles not PR, we will defend free expression, and we will stick to our hands-off approach to content moderation."

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Honda and Mitsubishi are collaborating in a two-year project in Shunan City, Japan, to evaluate the feasibility and environmental benefits of powering a data center with fuel cells taken from electric vehicles. The Register reports: Hydrogen for the fuel cell power station will be provided by a third Japanese company, Tokuyama Corporation, as a byproduct from its salt water electrolysis business, which manufactures about 50,000 tons of sodium hypochlorite each year. The project was proposed by Japan's New Energy and Industrial Technology Development Organization (NEDO), which promotes the research, development and adoption of industrial, energy and environmental technologies. The objective is to consider ways of reducing costs for organizations to install and operate stationary fuel cell systems, which could ultimately contribute to the decarbonization of the electric power supply. No details were disclosed of the kind of datacenter infrastructure that Mitsubishi will operate as part of this project, so it is unknown how much power the fuel cell power station will be required to supply. [...] Hydrogen can be considered a clean fuel because it produces only water as a byproduct when consumed in a fuel cell. But the problem is in sourcing the hydrogen. Much commercially produced hydrogen is extracted from methane gas via an energy-intensive process typically powered by fossil fuels. It is likely that the process Tokuyama uses in its salt water electrolysis is ultimately powered by fossil fuels, but the hydrogen is produced as a byproduct and this is currently just a demonstration project to evaluate the feasibility of integrated hydrogen business models. In addition to verifying the use of fuel cells for primary and backup power sources in datacenters, the project will also look at the potential for grid-balancing applications.

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An anonymous reader quotes a report from The Guardian: A chief executive officer whose claimed qualifications appear to have no basis in fact was used to promote the HyperVerse crypto fund, alongside celebrity messages of support, as part of a push to recruit new investors into the scheme. A Guardian Australia investigation last month revealed thousands of people have lost millions of dollars to the HyperVerse crypto scheme, which was promoted by the Australian entrepreneur Sam Lee and his business partner, Ryan Xu, two of the founders of the collapsed Australian bitcoin company Blockchain Global. Blockchain Global owes creditors $58 million and its liquidator has referred Xu and Lee to the Australian Securities and Investments Commission for alleged possible breaches of the Corporations Act. Asic has said it does not intend to take action at this time. The HyperVerse investment scheme is among those that appear to have escaped scrutiny in Australia despite being flagged by regulators overseas, by one as a possible "scam" and another as a "suspected pyramid scheme." Lee has denied HyperVerse was a scam and disputes being its founder. A man named Steven Reece Lewis was introduced as the chief executive officer of HyperVerse at an online global launch event in December 2021, with video messages of support from a clutch of celebrities released on Twitter the following month, including from the Apple co-founder Steve Wozniak and actor Chuck Norris. Promotional material released for HyperVerse, which was linked to a previous scheme called HyperFund, said Reece Lewis was a graduate of the University of Leeds and held a master's degree from the University of Cambridge. A brief career summary of Reece Lewis, which was presented in a video launch for potential investors, said he had worked for Goldman Sachs, sold a web development company to Adobe and launched an IT start-up firm, before being recruited to head up HyperVerse by the HyperTech group. This was the umbrella organization for a range of Hyper-branded crypto schemes. Lee spoke at the launch event as "chairman" of the HyperTech group, while Xu was introduced as the group's "founder." The company praised Reece Lewis's "strong performance and drive," citing his credentials as the reason for his recruitment. Guardian Australia has confirmed that neither the University of Leeds nor the University of Cambridge has any record of someone by the name Steven Reece Lewis on their databases. No records exist of Steven Reece Lewis on the UK companies register, Companies House, or on the US Securities and Exchange Commission. Adobe, a publicly listed company since 1986, has no record of any acquisition of a company owned by a Steven Reece Lewis in any of its public SEC filings. It is understood that Goldman Sachs could find no record of Reece Lewis having worked for the company. Guardian Australia was unable to find a LinkedIn profile for Reece Lewis or any internet presence other than HyperVerse promotional material. A Twitter account in Reece Lewis's name was set up a month before he appeared in the HyperVerse video launch and was used to promote the scheme on the platform for just six months before the account became inactive.

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Alexander Martin reports via The Record: The owner of an apartment in Veliky Novgorod in Russia has been arrested for discrediting the country's armed forces after a neighbor alerted the police to the message 'Slava Ukraini' scrolling across their LED curtains. When police went to the scene, they saw the garland which the owner had hung in celebration of the New Year and a "slogan glorifying the Armed Forces of Ukraine," as a spokesperson for the Ministry of Internal Affairs told state-owned news agency TASS. The apartment owner said the garland was supposed to display a "Happy New Year" greeting, TASS reported. Several other people in Russia described a similar experience on the AlexGyver web forum, linked to a DIY blog popular in the country. They said at the stroke of midnight on New Year's Eve, their LED curtains also began to show the "Glory to Ukraine" message in Ukrainian. It is not clear whether any of these other posters were also arrested. The man in Veliky Novgorod will have to defend his case in court, according to TASS. Police have seized the curtain itself. An independent investigation into the cause of the message by the AlexGyver forum users found that affected curtains all used the same open-source firmware code. The original code appears to have originated in Ukraine before someone created a fork translated into Russian. According to the Telegram channel for AlexGyver, the code had been added to the original project on October 18, and then in December the people or person running the fork copied and pasted that update into their own version. "Everyone who downloaded and updated the firmware in December received a gift," the Telegram channel wrote. The message was "really encrypted, hidden from the 'reader' of the code, and is displayed on the first day of the year exclusively for residents of Russia by [geographic region]."

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