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Analysis indicates that the universe’s expansion is not accelerating
The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests. "Remarkab...
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We cut our Mongo DB costs by 90% by moving to Hetzner
We moved MongoDB Atlas off AWS and onto self-hosted Hetzner boxes — 90% cost cut, no performance loss. Here's the setup, the Ansible, and what broke.
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Polars Cloud: The Distributed Cloud Architecture to Run Polars Anywhere
We introduce Polars Cloud, the distributed cloud architecture to scale and run Polars anywhere.
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How to have the browser pick a contrasting color in CSS
Have you ever wished you could write simple CSS to declare a color, and then have the browser figure out whether black or white should be paired with that color?
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Recovering from AI addiction
Welcome to Internet and Technology Addicts Anonymous! We’re glad you’ve found us, and we hope our community can be as helpful to you as it has been for us. ITAA is a Twelve-Step fellowship of individuals who support each other in recovering from internet and technology addiction. This includes social media addiction…
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Ubiquiti SFP Wizard
Celebrate SFP Liberation Day with Ubiquiti’s new SFP Wizard, the $49 portable tool that tests and programs any SFP or QSFP module in seconds. Enjoy up to 1000% off Ubiquiti SFPs and unlock true universal compatibility across every switch and network.
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Astronomers 'image' a mysterious dark object in the distant Universe
Scientists detect the lowest mass dark object currently measured
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What's Hiding Inside Haribo's Power Bank and Headphones?
CT scans reveal severe battery defects inside Haribo’s 20,000 mAh power bank and earbuds, explaining their quiet removal from Amazon.
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Context Rot: How increasing input tokens impacts LLM performance
Large Language Models (LLMs) are typically presumed to process context uniformly—that is, the model should handle the 10,000th token just as reliably as the 100th. However, in practice, this assumption does not hold. We observe that model performance varies significantly as input length changes, even on simple tasks…
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Claude Opus 4 and 4.1 can now end a rare subset of conversations
Claude Opus 4 and 4.1 can now end a rare subset of conversations. An update on our exploratory research on model welfare.
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Usability Improvements in GCC 15
GCC 15 brings better error messages and diagnostics for your code, including prettier execution paths and easier-to-read compiler errors for C++ templates.
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From Rust to reality: The hidden journey of fetch_max
Tracing Rust AtomicU64::fetch_max from macro expansion and rustc intrinsics through LLVM atomicrmw umax down to the final x86-64 CAS loop.
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Eye prosthesis is the first to restore sight lost to macular degeneration
In a Stanford Medicine-led clinical trial of a wireless retinal prosthesis, people with advanced macular degeneration regained enough vision to read books and subway signs.
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How has DeepSeek improved the Transformer architecture?
This Gradient Updates issue goes over the major changes that went into DeepSeek's most recent model.
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One year after switching from Java to Go
I always told people memory is cheap, black magic is OK and efficiency doesn't matter, but I was wrong.
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Obvious things C should do
Standard C undergoes regular improvements, now at C23. But there are baffling things that have not been fixed at all. The Dlang community embedded a C compiler in the D programming language compiler so it could compile C. This C compiler (aka ImportC ) was built from scratch. It provided the opportunity to use modern…
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Netflix’s Media Production Suite
Jesse Korosi, Thijs van de Kamp, Mayra Vega, Laura Futuro, Anton Margoline
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Kylie Minogue song about a typeface
Whitney Mallett dives into the recent history of German Bold Italic (GBI), a 1997 song by Towa Tei's featuring Kylie Minogue, who sang from the perspective of a new typeface.
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AV1@Scale: Film Grain Synthesis, The Awakening
Unleashing Film Grain Synthesis on Netflix and Enhancing Visuals for Millions
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Axon’s Draft One is designed to defy transparency
Axon Enterprise’s Draft One — a generative artificial intelligence product that writes police reports based on audio from officers’ body-worn cameras — seems deliberately designed to avoid audits that could provide any accountability to the public, an EFF investigation has found.Our review of...
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Building a DOOM-like multiplayer shooter in pure SQL
CedarDB is a database system that delivers unmatched performance for transactions and analytics, from small writes to handling billions of rows. Built on cutting-edge research to power today’s tools and tomorrow’s challenges.
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Developing our position on AI
This post is about how we've tried to develop a position on AI in the context of learning and growth at RC.
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UK Millionaire exodus did not occur, study reveals
The number of millionaires widely reported in the news to be leaving countries in "exodus" represented near-0% of all millionaires.
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Google shifts goo.gl policy: Inactive links deactivated, active links preserved
While we previously announced discontinuing support for all goo.gl URLs after August 25, 2025, we've adjusted our approach in order to preserve actively used links.We un…
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Traefik's 10-year anniversary
10 years ago, I made a small reverse proxy project public. Fast forward to today and Traefik has 3.4B downloads and 56k GitHub stars. See how it unfolded.
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WorldGen – Text to Immersive 3D Worlds
Today, we’re introducing WorldGen: a state-of-the-art end-to-end system for generating interactive and navigable 3D worlds from a single text prompt.