AV1 – Now Powering 30% of Netflix Streaming

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Netflix uses AV1, a modern open video codec, to deliver high-quality streaming to its members, achieving 30% viewing share and reducing bandwidth consumption. AV1's superior compression efficiency and features like HDR and film grain synthesis enhance the streaming experience, with AV2 on the horizon to further improve streaming capabilities.

State of AI: An Empirical 100T Token Study with OpenRouter

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Large language models (LLMs) have shifted from single-pass pattern generation to multi-step deliberation inference, accelerating deployment and new applications. An empirical study of real-world LLM usage reveals substantial adoption of open-weight models, creative roleplay, and coding assistance categories.

CUDA-l2: Surpassing cuBLAS performance for matrix multiplication through RL

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CUDA-L2 optimizes HGEMM CUDA kernels, outperforming major matmul baselines on A100. It supports 16-bit accumulator, with 32-bit support planned for future release.

We gave 5 LLMs $100K to trade stocks for 8 months

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Five LLMs (GPT-5, Claude, Gemini, Grok, and DeepSeek) were tested in a backtested trading AI Trade Arena with $100K each over 8 months. Grok performed the best, while Gemini had the worst performance due to a non-tech heavy portfolio.

Multivox: Volumetric Display

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The code is for a volumetric display system using a Raspberry Pi, with two display options: Rotovox and Vortex, each with unique features. The system includes a driver and client code, a demo, and a simulator for testing.

Thoughts on Go vs. Rust vs. Zig

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The author experimented with Go, Rust, and Zig to understand their values and design choices, finding that Go is minimalist, Rust is maximalist, and Zig is a reaction against both, offering manual memory management and a focus on data-oriented design. Each language reflects its creators' values, with Go prioritizing corporate collaboration, Rust prioritizing safety and performance, and Zig ...

Transparent leadership beats servant leadership

You're skeptical of servant leadership and propose transparent leadership instead, where leaders empower employees by explaining values and principles, and removing themselves as middlemen. A good leader should become a high-powered spare worker, focusing on technical problems to stay skilled and earn respect.

It’s time to free JavaScript (2024)

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Oracle controls the JavaScript trademark, but its use has been discontinued and it's become a generic term. The trademark has remained with Oracle since its acquisition of Sun Microsystems, but it has been in disuse for years, causing confusion and disruption.

Trick users and bypass warnings – Modern SVG Clickjacking attacks

A new technique has been discovered that allows for complex interactive clickjacking attacks and multiple forms of data exfiltration by using SVG filters to run logic and provide visual output. This technique can be used to create convincing attacks such as fake captchas, input boxes, and even QR codes that can be used to exfiltrate data.

Why are 38 percent of Stanford students saying they're disabled?

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Elite US universities have high percentages of students claiming learning disabilities, with 20-38% of students at Brown, Harvard, Amherst, and Stanford claiming mental health conditions and learning disabilities. Many experts believe these students are not genuinely learning disabled but rather using accommodations as a way to avoid bad grades and intellectual growth.

StardustOS: Library operating system for building light-weight Unikernels

Stardust is a unikernel OS that runs cloud apps in a protected environment with a small code base and static linking. It supports multiple cores, preemptive threads, and POSIX-compatible libraries.

Django 6

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Django 6.0 supports Python 3.12, 3.13, and 3.14, and includes new features like Content Security Policy, template partials, and a built-in Tasks framework.

How elites could shape mass preferences as AI reduces persuasion costs

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Elites use AI-driven persuasion to shape public opinion, potentially increasing polarization. Advances in persuasion technology can either heighten or dampen polarization depending on the governing environment.

The Ofcom Files, Part 4: Ofcom Rides Again

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This is a continuation of the Ofcom Files, a series of First Amendment-protected public disclosures designed to inform the American and British public about correspondence that the UK’s censorship agency, Ofcom, should prefer to keep secret. See Part 1, Part 2, and Part 3. The full letter Ofcom attached to their e-mail was full of legally illiterate nonsense claiming extraterritorial power to ...

A Cozy Mk IV light aircraft crashed after 3D-printed part was weakened by heat

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A plane crashed at Gloucestershire Airport due to a 3D-printed part collapsing from heat exposure. The Air Accidents Investigation Branch will take safety actions regarding 3D printed parts after the incident.

PyTogether: Collaborative lightweight real-time Python IDE for teachers/learners

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PyTogether is a browser-based Python IDE for collaborative learning and teaching with real-time editing and chat. It offers a simple, distraction-free environment for beginners with instant setup and limited features.

Show HN: Onlyrecipe 2.0 – I added all features HN requested – 4 years later

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Save and organize your favorite recipes from any website. Extract recipes, sync across devices, and print beautiful recipe cards. Your personal recipe collection in the cloud.

Help, My Java Object Vanished (and the GC Is Not at Fault)

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The user, a HotSpot Java Virtual Machine developer, encountered intermittent and non-obvious test failures after changing the markWord layout to conform to JEP450 for Project Valhalla, and after extensive debugging, they narrowed down the issue to a miscompilation bug in the C2 JIT-compiler with Compact Object Headers disabled. The user used various tools and techniques, including automated ...

CSS now has an if() conditional function

"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

Fighting the age-gated internet

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Members of Congress considered 19 online safety bills that may lead to increased censorship and surveillance. Digital rights groups, including Fight for the Future, oppose the bills, citing concerns over age verification and its impact on internet freedom.

I ignore the spotlight as a staff engineer

The author, a Senior Staff Engineer at Google, disagrees with Sean Goedecke's advice to optimize for visibility and fungibility, instead advocating for stewardship and long-term ownership of systems. This approach allows for deeper technical context, trust, and promotion opportunities through technical advocacy and metrics tracking engineering health.

Converge (YC S23) is hiring a martech expert in NYC

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Converge is hiring a Senior Technical Customer Success Manager to help scale their Growth OS platform to $10M+ ARR. The role involves advising customers on marketing measurement, resolving technical issues, and driving customer success and renewals.

Autism should not be treated as a single condition

Autistic individuals may struggle with overwhelming sensory experiences but often possess unique gifts in areas like music, math, or art. Receiving exclusive content from The Economist Group is agreed upon.

SMS phishers pivot to points, taxes, fake retailers

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Chinese phishing groups are promoting new kits for fake e-commerce websites that convert payment card data into mobile wallets. These groups are also sending SMS lures about unclaimed tax refunds and mobile rewards points.

Some models of reality are bolder than others

Digital physics suggests the universe is a giant digital computer with simple rules, making it radically simpler than thought. This idea implies that complex phenomena emerge from trivially simple rules, rather than hidden mathematics.

Functional Quadtrees

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The user is implementing a functional Quadtree in Clojure for a 2D map visualization, where the tree structure is optimized based on distance from the camera position. The Quadtree is used to save resources by reducing detail in areas far from the camera, and the implementation uses Clojurescript and Shadow-cljs for compilation and web interface.

Launch HN: Browser Buddy (YC W24) – A recommendation system for Internet writing

A For-You page for writingExplore the best essays and blogs on the Internet with Browser Buddy.

Feynman vs. Computer

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The user read an article on the Feynman trick for integration and found it fascinating despite not being good at analysis. They realized that analytical integration can be difficult and often requires special tricks and pattern recognition.

PGlite – Embeddable Postgres

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Lightweight WASM Postgres

Who Hooked Up a Laptop to a 1930s Dance Hall Machine?

The Speelklok Museum in Utrecht has a unique 1930s dance hall machine that plays music from encoded cardboard books with hole punches. It was recently modified to play mp3s from a laptop, but the details of this modification are unknown.