Jane Street vs Bitcoin 🪙, AGI career decisions 💼, Vercel Chat SDK 🤖

Beginning in late 2024 and accelerating through 2025, Bitcoin's price experienced sudden and sharp sell-offs every trading day at 10 AM Eastern ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

Sign Up |Advertise|View Online TLDR Together With TLDR 2026-02-26 Datadog research: most cloud workloads are using less than half their allocated resources (Sponsor) Datadog's 2025 State of Containers and Serverless report analyzed real usage data from tens of thousands of customers across AWS, Azure, and Google Cloud. The report covers 10 findings on how container and serverless adoption is shifting — including: 1️⃣ Karpenter overtook Cluster Autoscaler for K8s node provisioning, jumping from ~11% to 34% share in two years. 2️⃣ GPU instance hours tripled since late 2023 as teams spin up inference servers like vLLM and Triton for AI workloads. 3️⃣ Arm usage doubled across both Lambda functions (9% → 19%) and cloud instances (9% → 15%). Download the full report to see all 10 findings 📱 Big Tech & Startups The 10 AM Drop: How Jane Street Broke Bitcoin's Price (13 minute read) Beginning in late 2024 and accelerating through 2025, Bitcoin's price experienced sudden and sharp sell-offs every trading day at 10 AM Eastern, coinciding with the US stock market open. The drops were precise, algorithmic, and wildly disproportionate to the broader market conditions. They wiped out leveraged long positions, triggered cascading liquidations, and then reversed within hours. These dumps stopped the moment Jane Street had lawyers looking over its shoulder due to the Terraform Labs lawsuit, and they started again in Q3 2025 when the heat died down. Anthropic's Pentagon Showdown Is About More Than AI Guardrails (16 minute read) Anthropic has the most constrained use age policy of all of the AI companies working on US military applications. It has a host of limitations on the use of its technology intended to prevent broader societal harm that includes core tenets such as 'Do Not Develop or Design Weapons' and 'Do Not Compromise Computer or Network Systems'. However, there are signs that the company's safety commitments are slipping. The Pentagon's threat to potentially remove Anthropic from the supply chain could be almost fatal to the business. 🚀 Science & Futuristic Technology Alphabet-owned robotics software company Intrinsic joins Google (3 minute read) Alphabet-owned robotics company, Intrinsic, is joining Google to unlock the promise of physical AI for a much broader set of manufacturing businesses and developers. It will remain a distinct entity within Google but work closely with Google DeepMind and tap into Google's Gemini AI models and cloud services. Intrinsic announced a joint venture with Foxconn in October that involves the two companies working together on general-purpose intelligent robots to transform how electronics are manufactured, with the goal of full factory automation. The company is now working towards those goals with closer collaboration with Google's AI prowess. Wayve, an AI Driverless Car Start-Up in Europe, Raises $1.2 Billion (4 minute read) Wayve has raised $1.2 billion in a deal that values the London-based autonomous vehicle software startup at $8.6 billion. The funding, which could grow to $1.5 billion if it hits certain performance targets, is one of the largest amounts raised by a European startup. Wayve expects to have its driverless taxis on the road for customers this year through a commercial trial with Uber. Consumer vehicles incorporating its technology will be available to buy by 2027. 💻 Programming, Design & Data Science 40%+ open rates. 6M+ tech professionals. Add TLDR to your media mix. (Sponsor) TLDR reaches developers and technical decision makers across 12 newsletters. Already running Meta? TLDR fills the gap it can't. See how TLDR compares. Tests Are The New Moat (4 minute read) Software contracts, tests, and API surface area are becoming more valuable as AI becomes better at cloning people's work. This clashes with the incentives of commercialized open source work. Previously, the overhead of writing, understanding, and maintaining the code itself was important. However, clearly defining and communicating open source software's APIs makes it easier for AI to clone work. npm i chat – One codebase, every chat platform (1 minute read) Vercel's new Chat SDK lets teams write bot logic once and deploy to Slack, Microsoft Teams, Google Chat, Discord, GitHub, and Linear. Its event-driven architecture includes type-safe handlers for mentions, messages, reactions, button clicks, and slash commands. The SDF enables teams to build user interfaces using JSX cards and modals that render natively on each platform. It handles distributed state management using pluggable adapters for Redis, ioredis, and in-memory storage. 🎁 Miscellaneous Software companies buying software: a story of ecosystems and vendors (12 minute read) Several things are happening in software: a lot more startups with super-fast revenue growth are popping up, margins are thinner, engineering inequality is growing, and digital natives had a bunch of layoffs. This is all a direct corollary of the platformization of software, and it will continue. What's happening is expected - it just took some time to happen. The software industry is now much bigger than it was a decade ago, and AI is creating a ton of FOMO. Productivity: The Evidence Is Mixed, But the Pattern Is Clear (2 minute read) AI increases productivity on well-scoped tasks where errors are detectable. This breaks down when tasks get harder. When AI agent output is scored algorithmically, it looks moderately capable, but when scored holistically, performance drops substantially. Estimates about AI's effect on productivity drop when task reliability is factored in. ⚡ Quick Links AI is speeding up individuals, but not teams. Learn how to scale AI impact at Atlassian's Digital Summit (Sponsor) Only 4% of orgs report true transformation from AI. Learn how to unlock human-AI coordination with a new system of work. Register for Atlassian's Teamwork in an AI Era How Cloudflare rebuilt Next.js with AI in one week (10 minute read) vinext is a drop-in replacement for Next.js built on Vite for about $1,110 in tokens that builds production apps up to four times faster and produces client bundles up to 57% smaller. The Last Gasps of the Rent Seeking Class (4 minute read) The US economy built a giant rent-extraction layer on top of human limitations over the past fifty years, with trillions of dollars of enterprise value depending on increased friction. The Algorithm That Powers Your X (Twitter) Post (11 minute read) This article looks at what X's algorithm does, how its components fit together, and why the xAI Engineering Team made the design choices they did. TLDR is hiring a Senior Software Engineer, Applied AI ($250k-$300k, Fully Remote) As the first engineer on TLDR's new Applied AI team, you'll build AI agents and composable Claude Skills to let non-technical teammates create their own AI workflows. Learn more. Two Beliefs About Coding Agents (5 minute read) Most talented developers do not appreciate the impact of the intuitive knowledge they bring to their coding agents, and most of the work people are sharing are incredible personal tools, but they are not capital-P products. 'AWS for Everything' Vs. 'Shein for Everything' (21 minute read) The reindustrialization debate is obsessed with building impressive factories, but the harder, more important work is building the network that feeds everything else. Everything announced at Samsung Unpacked (10 minute read) Details on the Galaxy S26 Ultra, Galaxy Buds 4, Samsung's Privacy Display technology, and more. Love TLDR? Tell your friends and get rewards! Share your referral link below with friends to get free TLDR swag! https://refer.tldr.tech/7c97ce4b/ Track your referrals here. Want to advertise in TLDR? 📰 If your company is interested in reaching an audience of tech executives, decision-makers and engineers, you may want to advertise with us. Want to work at TLDR? 💼 Apply here, create your own role or send a friend's resume to jobs@tldr.tech and get $1k if we hire them! TLDR is one of Inc.'s Best Bootstrapped businesses of 2025. If you have any comments or feedback, just respond to this email! 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