Capital One to acquire Brex for $5.15B

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GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

https://gptzero.me/news/content/images/2026/01/NeurIPS-logo.svg
Gptzero's hallucination check tool uncovered 50 halluzinated citations in papers under review for iclr 2026. these neurips papers have already been accepted, presented live, and effectively published. a submission tsunami fueled by generative ai, paper mills and publication pressure has strained these conferences' review pipelines to the breaking point. the following table shows the ...

Show HN: isometric.nyc – giant isometric pixel art map of NYC

Talking to LLMs has improved my thinking

https://philipotoole.com/wp-content/uploads/2015/02/Searching-512-150x150.png
Large language models help clarify vague thoughts by mapping internal patterns to language. This improves the interface between thinking and language, increasing clarity and explicit representation of ideas.

Why does SSH send 100 packets per keystroke?

https://eieio.games/images/ssh-sends-100-packets-per-keystroke/probably-not.webp
The user was debugging a high-performance game over ssh and found that stock ssh was sending unnecessary packets to obscure keystroke timing, causing significant overhead. They were able to disable this feature by not advertising the [email protected] extension in the go ssh library, resulting in a 50% drop in CPU usage.

I was banned from Claude for scaffolding a Claude.md file?

https://hugodaniel.com/images/claude_ban.jpg
User was banned from AI platform Claude for using it as a disabled organization to automate tasks, which triggered security measures. User received a credit note and is reframing their project to avoid similar issues in the future.

Qwen3-TTS family is now open sourced: Voice design, clone, and generation

http://qianwen-res.oss-accelerate.aliyuncs.com/Qwen3-TTS-0115/archi.png#center
Qwen3-tts is a series of powerful speech generation capabilities developed by. it offers comprehensive support for voice clone, voice design, and natural language-based voice control. the base model capable of 3-second rapid voice-clone from user audio input; can be used for fine-tuning (ft) other models.,: "i don’t even know why... i just felt" ''

Turso is an in-process SQL database, compatible with SQLite

https://camo.githubusercontent.com/d199d63b18a5a9120d300568d993c534e2cbefb6e7bbfc4b45e0121d080f4f6e/68747470733a2f2f636f6e747269622e726f636b732f696d6167653f7265706f3d747572736f64617461626173652f747572736f
Turso Database is a Rust-based evolution of SQLite with native async support and features like vector search. It's still in beta and has a bug bounty for data corruption issues.

Bugs Apple Loves

Users Affected × Frequency × Time Per Incident How many Apple users hit this bug, how often, and how long they suffer each time.

The lost art of XML

The author argues that XML is a superior data format to JSON due to its built-in schema validation, namespace support, and self-description capabilities, which provide a more robust and reliable way to represent data. Despite the existence of binary XML encodings like Fast Infoset and EXI, the industry has abandoned XML in favor of JSON and other formats, prioritizing developer convenience ...

Douglas Adams on the English–American cultural divide over "heroes"

A user on Slashdot questioned Douglas Adams about the perceived nihilism in Hitchhiker's Guide to the Galaxy, specifically Arthur Dent's character. The user suggested a cultural divide between England and the US in viewing failure as a heroic trait.

Improving the usability of C libraries in Swift

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Swift provides direct interoperability with C libraries, allowing developers to use existing C libraries from Swift code without rewriting them. By using Swift annotations and API notes, developers can improve the safety and ergonomics of C libraries in Swift, making them feel more native to the language.

Scaling PostgreSQL to power 800M ChatGPT users

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OpenAI scaled PostgreSQL to handle millions of queries per second for 800 million users through rigorous optimizations and solid engineering, enabling the system to support massive global traffic with a single primary instance and nearly 50 read replicas. Despite challenges with write-heavy workloads, the team implemented various solutions to mitigate limitations, including migrating ...

Your app subscription is now my weekend project

https://rselbach.com/your-sub-is-now-my-weekend-project/image-2026-01-18T21-04-02Z.png
User created several apps using vibecoding, replacing paid tools like Wispr Flow, Loom, and Typora. This shift suggests a change in the industry, making standalone apps less viable as separate products.

Captive Wi-Fi

https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Captive_Portal.png/250px-Captive_Portal.png
A captive portal is a web page displayed to users before granting access to a network, often requiring authentication or acceptance of terms. It's used for open wireless networks, marketing, and commercial communication purposes, and can be bypassed using various methods.

Launch HN: Constellation Space (YC W26) – AI for satellite mission assurance

Constellation Space built an AI system that predicts satellite link failures with 90% accuracy 3-5 minutes in advance by analyzing telemetry data and weather conditions. The system uses physics-based models and machine learning to scale with the growing number of satellites and is currently being tested with defense and commercial partners.

CSS Optical Illusions

https://alvaromontoro.com/images/blog/optical-illusions-cover.webp
The article discusses various optical illusions created using CSS, including the Poggendorff illusion, Münsterberg Poggendorff Arch, and other effects that trick the brain into seeing different colors, shapes, and movements. These illusions use techniques such as gradients, pseudo-elements, and animations to create the impression of movement, depth, and color, often with surprising and ...

My first year in sales as technical founder

https://www.fabiandietrich.com/static/img/banner/dancing-fish.png
The author, a technical founder, learned to prioritize sales and revenue generation, finding success with a high-touch sales process and LinkedIn outreach. He shares his learnings on finding an ideal customer profile, iterating on the sales funnel, and building strong relationships with customers.

Show HN: Text-to-video model from scratch (2 brothers, 2 years, 2B params)

https://cdn-avatars.huggingface.co/v1/production/uploads/61003b352a9d56b5372ece0a/QsQ6IvGoaxq3RVRsMnIHr.png
360p or 720p, 2-5 seconds, Apache 2.0

Why medieval city-builder video games are historically inaccurate (2020)

https://www.leidenmedievalistsblog.nl/images/uploads/_fulllandscape/PAK.GameBlog1.png
Medieval city builders often deviate from historical accuracy, featuring linear growth and unrealistic scenarios, but incorporating realistic elements like flood valleys and tithe collection could enhance realism. A more historically accurate game would involve planning settlements, managing resources, and dealing with threats like disease, war, and social unrest.

Recent discoveries on the acquisition of the highest levels of human performance

Stunnel

https://www.stunnel.org/img/tunnel.jpg
Stunnel is a proxy that adds TLS encryption to existing clients and servers without code changes, using OpenSSL for cryptography. It's free software with commercial support available, distributed under GNU GPL with OpenSSL exception.

'Active' sitting is better for brain health: review of studies

https://www.sciencealert.com/images/2026/01/ManDoingAUniqueSitOnCouch-642x361.jpg
Researchers found that active sitting, like reading, has positive associations with cognitive health, while passive sitting, like watching TV, is linked to negative outcomes. Engaging in mentally stimulating activities while sitting may help reduce dementia risk and support long-term brain health.

Compiling Scheme to WebAssembly

https://eli.thegreenplace.net/images/2026/bob_toplevel.png
You've added a WebAssembly compiler to your open-source project Bob, a Scheme implementation in Python. The new compiler lowers Scheme expressions to WebAssembly text, which can be executed using standard WASM tools.

Show HN: BrowserOS – "Claude Cowork" in the browser

https://private-user-images.githubusercontent.com/1309931/496754508-1e37941c-4dbc-4662-9c8c-3bbe9971301d.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.hU9q17U3bqvVgi8-CBbR-y3LPlU02qE8VTKwOEaOEOs
BrowserOS is an open-source chromium fork with AI agents, prioritizing local data storage and user privacy. It offers a familiar Chrome interface with AI-powered browsing and automation features.

In Europe, wind and solar overtake fossil fuels

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Wind and solar power surpassed fossil fuels in the E.U. last year, with solar growing faster than any other source of electricity. Renewables now provide nearly half of E.U. power, with solar alone supplying over 20 percent in several countries.

The Cscript Style Guide – CScript is the standard C

https://private-user-images.githubusercontent.com/297744/539545572-6069ba55-1099-4bf0-82a3-76547bbaf8ea.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3NjkxNDI4OTIsIm5iZiI6MTc2OTE0MjU5MiwicGF0aCI6Ii8yOTc3NDQvNTM5NTQ1NTcyLTYwNjliYTU1LTEwOTktNGJmMC04MmEzLTc2NTQ3YmJhZjhlYS5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjYwMTIzJTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI2MDEyM1QwNDI5NTJaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT1lMDNmNGZmMzVmMWI1ZDZkNzdhMTgxZjEwNmM0NzY4ZjhkNGI5OWM4MDhlYjg1Njc2NTIxODg0ZDI2MGRkMmE0JlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCJ9.A_PxW81ejKQibiRzzLAe2dn0bvWo9EBkWCi_W_KHl4Q
Cscript (C Scripting Language) is valid C that brings the development speed of Python to the raw performance and portability of C. By leveraging the full power of the GCC89 standard (and the auto keyword), Cscript removes the cognitive load of "types," "prototypes," and "manual memory management," allowing the developer to focus on logic. It is dynamically typed, ...

Composing APIs and CLIs in the LLM era

The user discusses two strategies for structuring tool descriptions within an LLM context window and argues that enabling the model to form pipelines of tool calls without re-prompting is an innovation that presents huge savings in token cost. The user showcases how they achieved this by using tools like Restish and oauth2c to create a CLI that interacts with Google APIs without writing bespoke code.

AnswerThis (YC F25) Is Hiring

https://bookface-images.s3.amazonaws.com/small_logos/7447a5f4c087378428be2bea5adcf3daf4a4e9e8.png
AnswerThis is hiring a developer for $120K-$200K + equity to build a system of record for scientists, backed by YC. The ideal candidate ships fast, knows AI stack, and cares about accelerating scientific discovery.

Writing First, Tooling Second

I am a strong proponent of running independent personal websites on your own domains and publishing your writing there. Doing so keeps the web diverse and decentralised, rather than concentrating most writing and discussion inside a small number of large platforms. It gives authors long term control over their work without being subject to changing policies or incentives. I think that a web ...