10.19.26 | People behind software, Agents reason in latent space, RepRapMicron

This is a recap of the top 10 posts on Hacker News on Oct 19, 2026.

Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

• (00:00) - Intro
• (00:19) - Someone behind the software
• (01:23) - Hybrid Reasoning Agents: LLM agents that think in latent space, act through text
• (02:26) - RepRapMicron
• (03:34) - There's never been a better time to go into math (by: 3blue1brown) [video]
• (04:36) - macOS 15.8.2 Breaks OpenGL
• (05:27) - Dogs seem to agree with humans that 'bouba' is round and 'kiki' is spiky
• (06:28) - Linux 7.3 Released
• (07:30) - I built a programming language that LLMs can't use
• (08:36) - Open MicroManipulator – A sub-micrometer 3D motion control plattform
• (09:44) - William Gibson and the trademarking of cyberspace
• (10:45) - Outro

Someone behind the software
https://karrisaarinen.com/posts/someone-behind-the-software/
https://news.ycombinator.com/item?id=50142573

Hybrid Reasoning Agents: LLM agents that think in latent space, act through text
https://arxiv.org/abs/2610.18861
https://news.ycombinator.com/item?id=50145337

RepRapMicron
https://github.com/VikOlliver/RepRapMicron/wiki
https://news.ycombinator.com/item?id=50141076

There's never been a better time to go into math (by: 3blue1brown) [video]
https://www.youtube.com/watch?v=LKrwhjOI8Nc
https://news.ycombinator.com/item?id=50136150

macOS 15.8.2 Breaks OpenGL
https://developer.apple.com/forums/verify-human/verify.html?next=/forums/thread/850550
https://news.ycombinator.com/item?id=50141909

Dogs seem to agree with humans that 'bouba' is round and 'kiki' is spiky
https://www.sciencealert.com/dogs-seem-to-agree-with-humans-that-bouba-is-round-and-kiki-is-spiky
https://news.ycombinator.com/item?id=50136979

Linux 7.3 Released
https://lwn.net/Articles/1101143/
https://news.ycombinator.com/item?id=50149392

I built a programming language that LLMs can't use
https://blog.picheta.me/post/killswitch-lang/
https://news.ycombinator.com/item?id=50135762

Open MicroManipulator – A sub-micrometer 3D motion control plattform
https://github.com/0x23/MicroManipulatorStepper
https://news.ycombinator.com/item?id=50140001

William Gibson and the trademarking of cyberspace
https://colo.to/cyberspace.html
https://news.ycombinator.com/item?id=50146625