Hacker News

Top stories

Live mirror
30 storiesupdated just nowView source snapshot
  1. Android 17 is the first since 3.x to add new APIs without releasing to the AOSP(grapheneos.social ↗)
    249comments
  2. Cloudflare Quick Tunnels(cloudflare.com ↗)
    247comments
  3. Saving another 100TB of RAM(cloudflare.com ↗)
    42comments
  4. How OpenAI Used Its Own LLMs to Design Its Jalapeño Chip(ieee.org ↗)
    47comments
  5. The Farnese letter(simonklee.dk ↗)
    4comments
  6. Xcode 27.1 Beta Release Notes(developer.apple.com ↗)
    67comments
  7. How to Write with an LLM(sockpuppet.org ↗)
    266comments
  8. Cache-to-Cache: Direct Semantic Communication Between LLMs (2025)(arxiv.org ↗)
    12comments
  9. Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug(ledger.com ↗)
    53comments
  10. Show HN: Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash(cactuscompute.com ↗)
    77comments
  11. Claude Code now reads AGENTS.md if there is no Claude.md(claude.com ↗)
    181comments
  12. The first new cat species discovered in 100 years(nationalgeographic.com ↗)
    54comments
  13. OpenJev(openjev.com ↗)
    245comments
  14. Cyclomatic Complexity in C#(ndepend.com ↗)
    14comments
  15. Show HN: LiveWorld – Every 24/7 YouTube live camera on one globe(liveworld.info ↗)
    discuss
  16. Column built an issuer processor from scratch(column.com ↗)
    5comments
  17. LispBM is a concurrent Lisp for microcontrollers with message passing(lispbm.com ↗)
    1comments
  18. Two parallel neural ectoderm progenitors contribute to the developing brain(newscientist.com ↗)
    53comments
  19. The Implications of Linguistic Illegibility for LLM Security(arxiv.org ↗)
    19comments
  20. C++26: Trivial infinite loops are no longer undefined behaviour(sandordargo.com ↗)
    196comments
  21. Minimal Phone 2(minimalcompany.com ↗)
    172comments
  22. Warez: The Infrastructure and Aesthetics of Piracy (2021)(archive.org ↗)
    22comments
  23. Inside ZCode: Silently uploading your Git history to the cloud(ferstar.org ↗)
    90comments
  24. How SpaceX streamlined the Raptor engine(construction-physics.com ↗)
    35comments
  25. I vibed a proof of Conway's conjecture(overreacted.io ↗)
    182comments
  26. A search-and-inference database from scratch in pure Zig(antfly.io ↗)
    16comments
  27. Size-Specialized Memory Allocation(go.dev ↗)
    3comments
  28. Alibaba open-sources AI model that can detect cancer and nearly 150 conditions(scmp.com ↗)
    discuss
  29. North Korean nuclear test sets off years of earthquakes(science.org ↗)
    151comments
  30. From Geometry to Algebra and Back Again: 4000 Years of Papers (2023) [video](youtube.com ↗)
    discuss

Caveman Mode Save Token?

16 pointsby 5mo agotwitter.com
7 comments
5mo agoHN ↗

Anything that reduce input/output works to an extent logically.

5mo agoHN ↗

It does. I've been tinkering with Copilot Studio Agents and you can hit a 8k character limit quickly. By taking your instructions and asking Copilot to compress the information down, while ensuring they are still human readable, you can cut it back to about 5k characters. The information is more dense and functionally the same and the agent is just as consistent as before.

5mo agoHN ↗

I used a system prompt similar to this, where I just dumped the entirety of https://grugbrain.dev/ into it and prefaced it with the assistant having to emulate grug.

Didn't find it particularly useful, but is is funny!

5mo agoHN ↗

I've had the thought that English is an efficiency barrier for a while now. Surely there are more information-dense representations of semantic concepts.

Some languages for example have single characters that represent entire ideas/phrases.

https://news.ycombinator.com/item?id=47442478