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This week's field notes across AI & Product, Building, Money, Well-being, and the merely fascinating. Five things worth knowing up top, plus everything else I stumbled onto.
β‘ 20 Second Snippets
π Google's AI Overviews now show in 43% of searches (up from 15%), and publishers are threatening to cut Google off.
π¬ Jack Dorsey's Block launched Buzz, a work chat that drops your AI agents into the same thread as your team.
πΆοΈ YC's Fall 2026 Requests for Startups landed: AI tutors, oceanic data centers, and proving you're human.
πΈ OpenAI is close to a ~$500B Ohio data center, with Nvidia in talks to backstop $250B of it.
π China already has 70+ AI firms operating abroad, exporting robotaxis and chatbots faster than US rivals.
Artificial Intelligence & Product
π Google's AI Overviews are eating the open web

Google's AI Overviews now appear in 43% of searches, up from just 15% a year ago, answering questions before anyone clicks through. Publishers are done playing along: Reuters, USA Today, Politico, and People are all weighing whether to block Google's crawler, and even Reddit, which signed a $60M-a-year deal to feed Google, may not renew. The tension is real, because AI answers still run on an ad-supported web that those same answers are quietly starving. TechCrunch Β· the publisher revolt
Also in AI & Product:
πΆοΈ Anthropic shipped Claude Opus 5, matching its Fable 5 sibling on many benchmarks at roughly half the price, with a 2.5x "fast mode." CNBC
π Moonshot open-sourced Kimi K3, the largest open-weight model ever released, with demand so high the lab paused new subscriptions. AP News
π§ Nvidia is investing up to $5B in Safe Superintelligence, Ilya Sutskever's secretive lab, after deciding its research is "worth scaling." TechCrunch
π Jensen Huang's first-ever post hit 60M views: a public letter defending open-weight models as Washington weighs banning Chinese ones, now signed by 25+ firms. X
π₯ Claude can now learn a task by watching you do it: the new "Record a Skill" turns a screen recording into a reusable automation. Search Engine Journal
π οΈ Your prompting habits are probably outdated: Anthropic's Thariq Shihipar breaks down what has quietly changed. Anthropic
Building Cool Stuff
π¬ Jack Dorsey wants to kill the office chat

Jack Dorsey's Block just launched Buzz, a group-chat platform built to take on Slack, with one twist: it puts humans and their AI agents in the same conversation. It folds chat, workflows, and GitHub-style project management into one workspace that's open-source, model-agnostic, and self-hostable, so teams can build their own features on top. It's aimed squarely at AI-heavy startups tired of stitching five tools together. TechCrunch
Also in Building:
πΆοΈ YC dropped its Fall 2026 Requests for Startups: The theme? AI moving into the physical world, featuring everything from personal AI tutors and "multiplayer" agent workspaces to oceanic data centers and deepfake-proof human verification. Y Combinator
π₯ "Obliterate, Don't Automate": USV's Michael Mignano argues the AI winners won't automate old markets, they'll erase them, the way Duolingo and Coinbase did. USV
ποΈ Meet "Microsports": Mark Cuban-backed World 1 is building original sports where a world title is won or lost in 30 seconds, engineered for the vertical feed. The Hollywood Reporter
π± Facebook is testing a full-screen "immersive video" feed, essentially a TikTok clone, as Meta tries to make the aging app relevant again. RouteNote
π€ China unveiled an explosion-proof "centaur" robot at WAIC: a four-wheeled chassis with a humanoid torso that hauls 265 lbs into steel mills and nuclear sites. Superhuman
Money & Markets
πΈ OpenAI's $500B bet on Ohio

OpenAI is close to leasing a ~$500 billion data center in southern Ohio, one of the biggest of the entire AI boom, and Nvidia is in talks to backstop $250 billion of the financing, covering OpenAI's lease and debt if it can't pay. It's the clearest look yet at how circular this build-out has become: chipmakers fund the startups that turn around and buy their chips. Powered by 10 gigawatts on a decommissioned Cold War uranium site, it's a scale big enough that some analysts are openly nervous. CNBC
Also in Money & Markets:
βοΈ Where markets stand this week: stocks are mostly treading water through midweek, with the S&P 500 hovering near flat and the Dow edging higher, while a semiconductor selloff (ASML down 5.8%, Korea's KOSPI off nearly 6%) keeps the Nasdaq under pressure, all ahead of Wednesday's Fed decision and the Big Tech earnings wave. Yahoo Finance
π Can China dominate AI exports too? Over 70 Chinese AI firms already operate abroad, exporting robotaxis and chatbots partly to offload the job losses they'd trigger at home. The Economist
π Chinese memory-chip maker CXMT soared 466% on its Shanghai debut, briefly becoming China's most valuable listed company in the country's biggest IPO since 2010. CNBC
πͺ Stocks just topped crypto on Hyperliquid: real-world assets hit 54% of weekly volume for the first time, and individual equities are now 61% of that. ARK's Lorenzo Valente
π A supersized earnings week: about a third of the S&P 500 reports, with Microsoft, Meta, Apple, and Amazon all up, and the Fed expected to hold. Seeking Alpha
π€³ Brands are going small: around 45% of influencer spend now flows to creators under 20k followers, who out-engage the megastars at a fraction of the cost. Morning Brew
Well-being
π A $10M bet on the smartest room in your house

Throne just raised $10M to expand its AI toilet sensor: a camera that uses computer vision to read gut health from your daily, ahem, data, no wearable required. Founded by a former Whoop CTO, it already tracks hydration and consistency, and the new funding aims at a next-gen device that can flag early warning signs of colon cancer. With colorectal cancer rising among younger adults, the bathroom is quietly becoming the next frontier of passive health monitoring. Crunchbase News
Also in Well-being:
π©Ί OpenAI rolled out ChatGPT Health to all US users, letting you connect medical records for personalized answers it claims can reason "better than clinician level" (as support, not a replacement). OpenAI
π The "Blue Monday" myth, debunked: a 340,000-person study found Mondays aren't actually worse, it's just the contrast with the weekend. The fix: carry one weekend joy into Monday morning. Arnold's Pump Club
β Garmin's CIRQA is a screen-free, subscription-free tracker with 10-day battery, built for people who want the health data without the doomscroll. Garmin
Curiosities
π The movie you have to drive to see

Christopher Nolan's The Odyssey is the first feature shot entirely on IMAX 70mm film, and Nolan insists it be watched that way, on one of just 25 US screens that show the full near-square frame. Fans are complying: one Floridian took a car, a bus, and a train nearly 300 miles to see it as intended. It's paying off, with $140M+ of the film's global haul coming from IMAX screens in two weekends, and IMAX stock up more than 60% on the year. CNBC
Also worth a look:
π LeBron James will finish his career with the 76ers, taking the smallest salary of his career, a roughly $92M pay cut, across two final seasons. CBS Sports
βοΈ The fastest business jet since the Concorde: Bombardier's Global 8000 set an LA-to-Farnborough record at Mach 0.93 ahead of its airshow debut. Bombardier
π A24 is screening its Anthony Bourdain biopic "Tony" for free to hospitality and food-service workers in 25 cities on August 3. The Hollywood Reporter
What did you think of today's edition?
π§ One more thing
Search, the office chat, the movie screen, even the bathroom are all being reinvented. Weβre building everyday, whether itβs tools, experiences, our life, our health, our relationships. Thereβs so many things to build, so the question becomes: What are you going to build today?
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Thanks & rock on!
