An audit of Perplexity's Sonar and Sonar-Pro models tested 310 factual questions about 210 tech companies and checked every citation attached to a sentence containing a number. It found that 34.7% of 1,826 such citations linked to pages that either wouldn't load or didn't contain any of the figures stated in the sentence, though scoring by claim rather than by individual citation marker lowered the failure rate to 14.4% of 872 claims.
A security-conscious writer outlines a personal 'threat modeling' approach to web browsing, contrasting unmodified browsers like Chrome and Edge—which allow ads, trackers, and GenAI features by default—with a hardened Firefox configuration used as their daily driver. The setup blocks intrusive scripts, cookies, and third-party content on most sites while carving out exceptions for work tools like Google Workspace.
James Dyson introduced the Dyson CameraJet in Paris, a toothbrush equipped with a 100k pixel macro lens camera and machine learning that detects gaps between teeth in real time. The device uses this data to fire precision jets of mouthrinse into those gaps while also brushing with variable sonic oscillation designed to keep bristles moving against tooth surfaces.
The piece revisits Robert Bridson's 2007 single-page paper, which offers a fast algorithm for placing random points—like trees in a procedurally generated forest—so no two fall closer than a set minimum distance. It contrasts this compact, widely-cited solution with a nearly 1,000-page 2024 proof of the geometric Langlands conjecture, highlighting the range of scales in mathematical work. The algorithm uses a grid and an active-point list to sample points efficiently in an annulus around existing points, avoiding the slowdown of naive rejection sampling.
Dyson has unveiled its first oral care device, the CameraJet toothbrush, which uses an onboard camera scanning teeth 28 times per second to detect debris and spray targeted mouthrinse to clean between them. Priced at $499, it requires a proprietary nonfoaming toothpaste and will launch in September through Sephora, Best Buy and Amazon. Founder James Dyson said the six-year project stemmed from frustration with dental visits rather than any market analysis.
After curl founder Daniel Stenberg ran OpenAI's Codex Security and Anthropic's Mythos against the widely-used curl codebase and got zero findings, AISLE's autonomous AI system produced 29 vulnerability reports. Six of those were validated by curl's security team and assigned CVE identifiers, all rated Low severity, and fixed in the newly released curl 8.22.0.
Nintendo has released a free update for Mario Kart 8 Deluxe tailored to Switch 2 hardware, enabling local split-screen play for up to eight people using original or Switch 2 controllers. The update also brings CameraPlay support for seeing friends via camera during races, shorter loading times, and improved visuals in docked mode.
Norway's digital minister Karianne Tung says the government is exploring rules to regulate camera-enabled wearables like those from Meta and Snap, citing growing privacy concerns. The devices, sometimes dubbed 'pervert glasses' by critics, combine cameras and microphones with AI and could soon add facial recognition capabilities. Tung plans to convene an expert panel to advise on protecting citizens' privacy rights.
Adobe announced that Slack users can now invoke apps like Firefly, Photoshop, Premiere, Acrobat and Illustrator directly through Slack's AI assistant, Slackbot, which interprets requests and calls the right Adobe tool while factoring in conversation context. Separately, more than 70 Adobe tools are being made available through a new Adobe for Slack MCP app. The integration launches first for Slack Business+ and Enterprise+ customers.
Taco Bell has signed an exclusive development agreement with restaurant operator Americana Restaurants to relaunch in the United Arab Emirates, a market it exited without explanation in 2012. The Yum! Brands chain previously ran several locations across the UAE, including in Dubai. Americana's chairman, Mohamed Alabbar, framed the comeback around Taco Bell's brand appeal to younger consumers seeking bold flavors and value.
Costco Next, a platform that gave Costco members access to discounted products from vetted third-party suppliers, has stopped working for many customers over the past several days. Users report being unable to access the marketplace, and Costco has not issued a public explanation for the disruption or shutdown.
Most international internet traffic actually travels through physical fibre-optic cables buried beneath ocean floors, not through the air as commonly assumed. One such cable emerges from the sea near La Línea de la Concepción, Spain, crossing the Strait of Gibraltar to Ceuta, a Spanish enclave on Morocco's coast that until recently relied on a single ageing cable link to the mainland.
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