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24.2K subscribers

MIT asks arXiv to take down preprint of paper on AI and scientific discovery (Score: 153+ in 6 hours)

Link: https://readhacker.news/s/6uAF4
Comments: https://readhacker.news/c/6uAF4

2.6K views21:20

Read 75+ Comments

Thoughts on thinking (🔥 Score: 158+ in 2 hours)

Link: https://readhacker.news/s/6uBsd
Comments: https://readhacker.news/c/6uBsd

Dustin Curtis on Svbtle

Thoughts on thinking

I have been stuck. Every time I sit down to write a blog post, code a feature, or start a project, I come to the same realization: in the context of AI, what I’m doing is a waste of time. It’s horrifying. The fun has been sucked out of the process...

2.6K views21:50

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I'm Peter Roberts, immigration attorney, who does work for YC and startups. AMA (Score: 153+ in 7 hours)

Link: https://readhacker.news/c/6uAEf

I'll be here for the next 5-6 hours. As usual, there are countless topics given the rapidly changing immigration landscape and I'll be guided by whatever you're concerned with. Please remember that I can't provide legal advice on specific cases because I won't have access to all the facts. Please stick to a factual discussion in your questions and I'll try to do the same in my answers.
Edit: I am taking a break now and will return later this afternoon/evening to respond to any comments and answer any questions. Thank you everyone for a great and engaged AMA so far.

2.5K views22:40

Show HN: KVSplit – Run 2-3x longer contexts on Apple Silicon (🔥 Score: 150+ in 2 hours)

Link: https://readhacker.news/s/6uBAK
Comments: https://readhacker.news/c/6uBAK

I discovered that in LLM inference, keys and values in the KV cache have very different quantization sensitivities. Keys need higher precision than values to maintain quality.
I patched llama.cpp to enable different bit-widths for keys vs. values on Apple Silicon. The results are surprising:
- K8V4 (8-bit keys, 4-bit values): 59% memory reduction with only 0.86% perplexity loss
- K4V8 (4-bit keys, 8-bit values): 59% memory reduction but 6.06% perplexity loss
- The configurations use the same number of bits, but K8V4 is 7× better for quality
This means you can run LLMs with 2-3× longer context on the same Mac. Memory usage scales with sequence length, so savings compound as context grows.
Implementation was straightforward:
1. Added --kvq-key and --kvq-val flags to llama.cpp
2. Applied existing quantization logic separately to K and V tensors
3. Validated with perplexity metrics across context lengths
4. Used Metal for acceleration (with -mlong-calls flag to avoid vectorization issues)
Benchmarked on an M4 MacBook Pro running TinyLlama with 8K context windows. Compatible with Metal/MPS and optimized for Apple Silicon.
GitHub: https://github.com/dipampaul17/KVSplit

GitHub - dipampaul17/KVSplit: Run larger LLMs with longer contexts on Apple Silicon by using differentiated precision for KV cache…

Run larger LLMs with longer contexts on Apple Silicon by using differentiated precision for KV cache quantization. KVSplit enables 8-bit keys & 4-bit values, reducing memory by 59% with &am...

2.5K views22:50

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Moody’s strips U.S. of triple-A credit rating (🔥 Score: 153+ in 2 hours)

Link: https://readhacker.news/s/6uBNR
Comments: https://readhacker.news/c/6uBNR

Moody’s strips US of top-notch triple-A credit rating

Agency warns of strains caused by rising government debt and a widening budget deficit

2.5K views00:00

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X X^t can be faster (Score: 150+ in 8 hours)

Link: https://readhacker.news/s/6uANa
Comments: https://readhacker.news/c/6uANa

$XX^{t}$ Can Be Faster

We present a new algorithm RXTX that computes product of matrix by its transpose $XX^{t}$. RXTX uses $5\%$ less multiplications and additions than State-of-the-Art and achieves accelerations even...

3.7K views00:00

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Java at 30: Interview with James Gosling (Score: 150+ in 11 hours)

Link: https://readhacker.news/s/6uAdJ
Comments: https://readhacker.news/c/6uAdJ

Java at 30: The Genius Behind the Code That Changed Tech

From trash-diving teen to tech pioneer, James Gosling's pragmatic genius shaped three decades of Java and modern computing.

2.7K views01:00

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Getting AI to write good SQL (Score: 154+ in 4 hours)

Link: https://readhacker.news/s/6uBLa
Comments: https://readhacker.news/c/6uBLa

Google Cloud Blog

Techniques for improving text-to-SQL | Google Cloud Blog

Learn about text-to-SQL techniques like context building and table retrieval, LLM-as-a-judge, and LLM prompting and post-processing.

2.8K views02:00

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ClojureScript 1.12.42 (Score: 151+ in 11 hours)

Link: https://readhacker.news/s/6uBDi
Comments: https://readhacker.news/c/6uBDi

2.6K views08:00

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Pathfinding (Score: 150+ in 1 day)

Link: https://readhacker.news/s/6uwP7
Comments: https://readhacker.news/c/6uwP7

#9 - Pathfinding

Hello! I've recently been working on the pathfinding for NPCs in my game, which is something I've been looking forward to for a while now since it's a nice chunky problem to solve. I thought I'd write...

2.6K views11:10

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Náhuatl and Mayan Language Renaissance Occurring in Mexico (❄️ Score: 150+ in 3 days)

Link: https://readhacker.news/s/6uquf
Comments: https://readhacker.news/c/6uquf

Yucatán Magazine

Náhuatl and Mayan Language Renaissance Occurring in Mexico

México is home to 68 officially recognized Indigenous languages and is experiencing a remarkable Mayan language renaissance

2.5K views12:50

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JavaScript's New Superpower: Explicit Resource Management (Score: 150+ in 8 hours)

Link: https://readhacker.news/s/6uCwD
Comments: https://readhacker.news/c/6uCwD

JavaScript's New Superpower: Explicit Resource Management · V8

The Explicit Resource Management proposal empowers developers to explicitly manage the lifecycle of resources.

2.6K views13:30

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Evolution of Rust Compiler Errors (Score: 150+ in 1 day)

Link: https://readhacker.news/s/6uAh5
Comments: https://readhacker.news/c/6uAh5

Kobzol’s blog

Evolution of Rust compiler errors

Blog about programming stuff.

2.5K views13:50

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Wow@Home – Network of Amateur Radio Telescopes (Score: 150+ in 12 hours)

Link: https://readhacker.news/s/6uCht
Comments: https://readhacker.news/c/6uCht

PHL @ UPR Arecibo - outreach

2.6K views14:30

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Japan's IC cards are weird and wonderful (❄️ Score: 154+ in 2 days)

Link: https://readhacker.news/s/6uwBZ
Comments: https://readhacker.news/c/6uwBZ

Japan's IC cards are weird and wonderful

Exploring what makes Japan's transit cards so unique compared to the West.

2.5K views14:30

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XTool – Cross-platform Xcode replacement (Score: 150+ in 12 hours)

Link: https://readhacker.news/s/6uChV
Comments: https://readhacker.news/c/6uChV

GitHub - xtool-org/xtool: Cross-platform Xcode replacement. Build and deploy iOS apps with SwiftPM on Linux, Windows, macOS.

Cross-platform Xcode replacement. Build and deploy iOS apps with SwiftPM on Linux, Windows, macOS. - xtool-org/xtool

3.3K views14:30

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Push Ifs Up and Fors Down (Score: 152+ in 6 hours)

Link: https://readhacker.news/s/6uCPf
Comments: https://readhacker.news/c/6uCPf

matklad.github.io

Push Ifs Up And Fors Down

A short note on two related rules of thumb.

2.6K views16:30

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Rustls Server-Side Performance (❄️ Score: 150+ in 4 days)

Link: https://readhacker.news/s/6upUf
Comments: https://readhacker.news/c/6upUf

Rustls Server-Side Performance

In past years, the Rustls project has been happy to receive substantial investments from the ISRG. One of our goals has been to improve performance without compromising on safety. We last posted about our performance improvements in October of 2024, and we're…

2.7K views16:40

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MCP: An in-depth introduction (❄️ Score: 150+ in 4 days)

Link: https://readhacker.news/s/6upNg
Comments: https://readhacker.news/c/6upNg

MCP: an in-depth introduction | Speakeasy

The API Platform. Generate, test, monitor, and document idiomatic SDKs directly from your OpenAPI spec.

2.9K views17:00

Read 64+ Comments

Palette lighting tricks on the Nintendo 64 (Score: 151+ in 5 hours)

Link: https://readhacker.news/s/6uDgM
Comments: https://readhacker.news/c/6uDgM

2.6K views19:30

Read 25+ Comments