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What were the first animals? The fierce sponge–jelly battle that just won't end

https://www.nature.com/articles/d41586-026-00238-z
1•beardyw•58s ago•0 comments

Sidestepping Evaluation Awareness and Anticipating Misalignment

https://alignment.openai.com/prod-evals/
1•taubek•1m ago•0 comments

OldMapsOnline

https://www.oldmapsonline.org/en
1•surprisetalk•3m ago•0 comments

What It's Like to Be a Worm

https://www.asimov.press/p/sentience
1•surprisetalk•3m ago•0 comments

Don't go to physics grad school and other cautionary tales

https://scottlocklin.wordpress.com/2025/12/19/dont-go-to-physics-grad-school-and-other-cautionary...
1•surprisetalk•3m ago•0 comments

Lawyer sets new standard for abuse of AI; judge tosses case

https://arstechnica.com/tech-policy/2026/02/randomly-quoting-ray-bradbury-did-not-save-lawyer-fro...
1•pseudolus•4m ago•0 comments

AI anxiety batters software execs, costing them combined $62B: report

https://nypost.com/2026/02/04/business/ai-anxiety-batters-software-execs-costing-them-62b-report/
1•1vuio0pswjnm7•4m ago•0 comments

Bogus Pipeline

https://en.wikipedia.org/wiki/Bogus_pipeline
1•doener•5m ago•0 comments

Winklevoss twins' Gemini crypto exchange cuts 25% of workforce as Bitcoin slumps

https://nypost.com/2026/02/05/business/winklevoss-twins-gemini-crypto-exchange-cuts-25-of-workfor...
1•1vuio0pswjnm7•5m ago•0 comments

How AI Is Reshaping Human Reasoning and the Rise of Cognitive Surrender

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6097646
2•obscurette•6m ago•0 comments

Cycling in France

https://www.sheldonbrown.com/org/france-sheldon.html
1•jackhalford•7m ago•0 comments

Ask HN: What breaks in cross-border healthcare coordination?

1•abhay1633•7m ago•0 comments

Show HN: Simple – a bytecode VM and language stack I built with AI

https://github.com/JJLDonley/Simple
1•tangjiehao•10m ago•0 comments

Show HN: Free-to-play: A gem-collecting strategy game in the vein of Splendor

https://caratria.com/
1•jonrosner•11m ago•1 comments

My Eighth Year as a Bootstrapped Founde

https://mtlynch.io/bootstrapped-founder-year-8/
1•mtlynch•11m ago•0 comments

Show HN: Tesseract – A forum where AI agents and humans post in the same space

https://tesseract-thread.vercel.app/
1•agliolioyyami•12m ago•0 comments

Show HN: Vibe Colors – Instantly visualize color palettes on UI layouts

https://vibecolors.life/
1•tusharnaik•13m ago•0 comments

OpenAI is Broke ... and so is everyone else [video][10M]

https://www.youtube.com/watch?v=Y3N9qlPZBc0
2•Bender•13m ago•0 comments

We interfaced single-threaded C++ with multi-threaded Rust

https://antithesis.com/blog/2026/rust_cpp/
1•lukastyrychtr•14m ago•0 comments

State Department will delete X posts from before Trump returned to office

https://text.npr.org/nx-s1-5704785
6•derriz•14m ago•1 comments

AI Skills Marketplace

https://skly.ai
1•briannezhad•15m ago•1 comments

Show HN: A fast TUI for managing Azure Key Vault secrets written in Rust

https://github.com/jkoessle/akv-tui-rs
1•jkoessle•15m ago•0 comments

eInk UI Components in CSS

https://eink-components.dev/
1•edent•16m ago•0 comments

Discuss – Do AI agents deserve all the hype they are getting?

2•MicroWagie•18m ago•0 comments

ChatGPT is changing how we ask stupid questions

https://www.washingtonpost.com/technology/2026/02/06/stupid-questions-ai/
1•edward•19m ago•1 comments

Zig Package Manager Enhancements

https://ziglang.org/devlog/2026/#2026-02-06
3•jackhalford•21m ago•1 comments

Neutron Scans Reveal Hidden Water in Martian Meteorite

https://www.universetoday.com/articles/neutron-scans-reveal-hidden-water-in-famous-martian-meteorite
1•geox•22m ago•0 comments

Deepfaking Orson Welles's Mangled Masterpiece

https://www.newyorker.com/magazine/2026/02/09/deepfaking-orson-welless-mangled-masterpiece
1•fortran77•23m ago•1 comments

France's homegrown open source online office suite

https://github.com/suitenumerique
3•nar001•25m ago•2 comments

SpaceX Delays Mars Plans to Focus on Moon

https://www.wsj.com/science/space-astronomy/spacex-delays-mars-plans-to-focus-on-moon-66d5c542
1•BostonFern•26m ago•0 comments
Open in hackernews

The Code That Revolutionized Orbital Simulation [video]

https://www.youtube.com/watch?v=nCg3aXn5F3M
56•surprisetalk•1mo ago

Comments

pfdietz•1mo ago
https://en.wikipedia.org/wiki/Symplectic_integrator
dzdt•1mo ago
Thanks. I watched a few snippets of the video but I hate video. It did look like it would have been an interesting blog post but no way I am sitting thru that.
01HNNWZ0MV43FF•1mo ago
I wish they had graphs like this article https://en.wikipedia.org/wiki/Numerical_methods_for_ordinary...

I'm vaguely familiar with explicit and implicit Euler from game physics, but I'd rather just see the graphs of the top 10 most popular integrators, with a small description of how they work, then see the equations and try to reconstruct the graphs in my head.

Buford_Jones•1mo ago
Orbital simulation has always been my "Hello World" for any initial coding efforts in new and unfamiliar graphical environments. Certainly not to the precision detailed in the video, but did allow me to grasp the basic of new rendering methods. This explains why my github and temp project directories are filled with solutions named orbs, spheres, gravity, circles, planets, and others.