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A study this week has found that shoppers using Instacart are often charged different prices for identical products at the same store at the same time, even when selecting in-store pickup rather than delivery. The Groundwork Collaborative, a progressive policy group, and Consumer Reports organized nearly 200 volunteers across four cities to simultaneously check prices on 20 grocery items. Price differences appeared on nearly three-quarters of the items tested. In one test, more than 40 participants selected the same Safeway in Washington, D.C. and the same brand of eggs. Prices ranged from $3.99 to $4.79 -- a 20% spread. At a Target in North Canton, Ohio, Skippy peanut butter was $2.99 for some shoppers and $3.59 for others. The full 20-item basket varied by about 7% within each store. An Instacart spokeswoman said retailers on its platform set their own prices and that some run short-term, randomized pricing tests. The company said tests were "never based on personal or behavioral characteristics." Instacart acquired Eversight, an AI-driven pricing optimization company, in 2022. A Target spokesman said the company is not affiliated with Instacart and bears no responsibility for prices on the platform. Safeway and parent company Albertson's declined to comment.

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Nvidia has developed location verification technology that could determine which country its AI chips are operating in, Reuters reports, citing a source, a capability that may help address ongoing concerns about the smuggling of advanced semiconductors to restricted markets like China. The feature, which Nvidia has demonstrated privately in recent months but has not released, would be an optional software tool that customers install. It taps into the confidential computing capabilities of Nvidia's GPUs and uses the time delay in communicating with Nvidia-run servers to approximate a chip's location. The technology will first be available on Nvidia's newest Blackwell chips, though the company is examining options for its older Hopper and Ampere generations. U.S. lawmakers and the White House have pushed for location verification measures as the Department of Justice has brought criminal cases against smuggling rings allegedly attempting to move more than $160 million worth of Nvidia chips to China.

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McDonald's has pulled an AI-generated Christmas commercial from YouTube after viewers pushed back on what they called a distasteful, "AI slop"-filled take on the holidays. The 45-second ad, titled "It's the most terrible time of the year," was a satirical look at holiday chaos -- people tripping while carrying overloaded gift bags, getting tangled in lights, burning homemade cookies, starting kitchen fires -- and ended with a suggestion to ditch the madness and hide out at McDonald's until January. The ad was created for McDonald's Netherlands by agency TBWA\NEBOKO and production company Sweetshop, whose Los Angeles-based directing duo Mark Potoka and Matt Spicer shot the film. After the backlash, Sweetshop said it used AI as a tool but emphasized human effort in shaping the final product. "We generated what felt like dailies -- thousands of takes -- then shaped them in the edit just as we would on any high-craft production," the company said. "This wasn't an AI trick. It was a film."

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An anonymous reader quotes a report from Reuters: U.S. Secretary of State Marco Rubio on Tuesday ordered diplomats to return to using Times New Roman font in official communications, calling his predecessor Antony Blinken's decision to adopt Calibri a "wasteful" diversity move, according to an internal department cable seen by Reuters. The department under Blinken in early January 2023 had switched to Calibri, a modern sans-serif font, saying this was a more accessible font for people with disabilities because it did not have the decorative angular features and was the default in Microsoft products. A cable dated December 9 sent to all U.S. diplomatic posts said that typography shapes the professionalism of an official document and Calibri is informal compared to serif typefaces. "To restore decorum and professionalism to the Department's written work products and abolish yet another wasteful DEIA program, the Department is returning to Times New Roman as its standard typeface," the cable said. "This formatting standard aligns with the President's One Voice for America's Foreign Relations directive, underscoring the Department's responsibility to present a unified, professional voice in all communications," it added.

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alternative_right quotes a report from Phys.org: To teach robots how to become tomato pickers, Osaka Metropolitan University Assistant Professor Takuya Fujinaga, Graduate School of Engineering, programmed them to evaluate the ease of harvesting for each tomato before attempting to pick it. Fujinaga's new model uses image recognition paired with statistical analysis to evaluate the optimal approach direction for each fruit. The system involves image processing/vision of the fruit, its stems, and whether it is concealed behind another part of the plant. These factors inform robot control decisions and help it choose the best approach. The model represents a shift in focus from the traditional 'detection/recognition' model to what Fujinaga calls a 'harvest-ease estimation.' "This moves beyond simply asking 'can a robot pick a tomato?' to thinking about 'how likely is a successful pick?', which is more meaningful for real-world farming," he explained. When tested, Fujinaga's new model demonstrated an 81% success rate, far above predictions. Notably, about a quarter of the successes were tomatoes that were successfully harvested from the right or left side that had previously failed to be harvested by a front approach. This suggested that the robot changed its approach direction when it initially struggled to pick the fruit. "This is expected to usher in a new form of agriculture where robots and humans collaborate," said Fujinaga. "Robots will automatically harvest tomatoes that are easy to pick, while humans will handle the more challenging fruits." The findings are published in Smart Agricultural Technology.

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A major scientific report published Tuesday argues that sending astronauts to Mars is justified by the quest to find life and conduct research that robots alone can't achieve. "We're searching for life on Mars," said Dava Newman, a professor in the Department of Aeronautics and Astronautics at Massachusetts Institute of Technology and co-chair of the committee that wrote the report. "The answer to the question 'are we alone' is always going to be 'maybe,' unless it becomes yes." Ars Technica reports: The report, two years in the making and encompassing more than 200 pages, was published by the National Academies of Sciences, Engineering, and Medicine. Essentially, the committee co-chaired by Newman and Linda T. Elkins-Tanton, director of the University of California, Berkeley Space Sciences Laboratory, was asked to identify the highest-priority science objectives for the first human missions to Mars. [...] "There's no turning back," Newman said. "Everyone is inspired by this because it's becoming real. We can get there. Decades ago, we didn't have the technologies. This would have been a study report." The goal of the report is to help build a case for meaningful science to be done on Mars alongside human exploration. The report outlines 11 top-priority science objectives. [...] The committee also looked at different types of campaigns to determine which would be most effective for completing the science objectives noted above. The campaign most likely to be successful, they found, was an initial human landing that lasts 30 days, followed by an uncrewed cargo delivery to facilitate a longer 300-day crewed mission on the surface of Mars. All of these missions would take place in a single exploration zone, about 100 km in diameter, that featured ancient lava flows and dust storms. Notably, the report also addresses the issue of planetary protection, a principle that aims to protect both celestial bodies (i.e., the surface of Mars) and visitors (i.e., astronauts) from biological contamination. [...] In recent years, NASA has been working with the International Committee on Space Research to design a plan in which human landings might occur in some areas of the planet, while other parts of Mars are left in "pristine" condition. The committee said this work should be prioritized to reach a resolution that will further the design of human missions to Mars. "NASA should continue to collaborate on the evolution of planetary protection guidelines, with the goal of enabling human explorers to perform research in regions that could possibly support, or even harbor, life," the report states.

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An anonymous reader quotes a report from the Guardian: The unsustainable production of food and fossil fuels causes $5 billion of environmental damage per hour, according to a major UN report. Ending this harm was a key part of the global transformation of governance, economics and finance required "before collapse becomes inevitable," the experts said. The Global Environment Outlook (GEO) report, which is produced by 200 researchers for the UN Environment Program, said the climate crisis, destruction of nature and pollution could no longer be seen as simply environmental crises. "They are all undermining our economy, food security, water security, human health and they are also [national] security issues, leading to conflict in many parts of the world," said Prof Robert Watson, the co-chair of the assessment. [...] The GEO report is comprehensive -- 1,100 pages this year -- and is usually accompanied by a summary for policymakers, which is agreed by all the world's countries. However, strong objections by countries including Saudi Arabia, Iran, Russia, Turkey and Argentina to references to fossil fuels, plastics, reduced meat in diets and other issues meant no agreement was reached this time. [...] The GEO report emphasized that the costs of action were much less than the costs of inaction in the long term, and estimated the benefits from climate action alone would be worth $20 trillion a year by 2070 and $100 trillion by 2100. "We need visionary countries and private sector [companies] to recognize they will make more profit by addressing these issues rather than ignoring them," Watson said. [...] One of the biggest issues was the $45 trillion a year in environmental damage caused by the burning of coal, oil and gas, and the pollution and destruction of nature caused by industrial agriculture, the report said. The food system carried the largest costs, at $20 trillion, with transport at $13 trillion and fossil-fuel powered electricity at $12 trillion. These costs -- called externalities by economists -- must be priced into energy and food to reflect their real price and shift consumers towards greener choices, Watson said: "So we need social safety nets. We need to make sure that the poorest in society are not harmed by an increase in costs." The report suggests measures such as a universal basic income, taxes on meat and subsidies for healthy, plant-based foods. There were also about $1.5 trillion in environmentally harmful subsidies to fossil fuels, food and mining, the report said. These needed to be removed or repurposed, it added. Watson noted that wind and solar energy was cheaper in many places but held back by vested interests in fossil fuel. The climate crisis may be even worse than thought, he said: "We are likely to be underestimating the magnitude of climate change," with global heating probably at the high end of the projections made by the Intergovernmental Panel on Climate Change. Removing fossil fuel subsidies could cut emissions by a third, the report said.

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