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Red-teaming my own credential broker: 231 attacks, and the five that worked

https://github.com/Walex4/taper/blob/main/docs/redteam.md
1•walex4•1m ago•0 comments

The AI Wait Equation

https://xendo.bearblog.dev/the-wait-equation/
2•xendo•2m ago•0 comments

Show HN: Why is a fly so hard to swat?

https://flyswat.win/?via=hn
1•cscmsg•5m ago•1 comments

Media execs sound alarm on AI

https://www.axios.com/2026/09/16/media-execs-sound-alarm-on-ai
1•1vuio0pswjnm7•5m ago•0 comments

SeasonMap – when to travel where? visualized with climate data

https://seasonmap.app
1•alongtheflow•7m ago•1 comments

Picturing Space: Projection and Perspective

https://www.essentialvermeer.com/technique/perspective/about-perspective.html
1•hopelessluca•9m ago•0 comments

Show HN: Put an AI agent on a FaceTime audio/video call (open source, WebRTC)

https://github.com/cherthq/chert-facetime-opensource
1•garygao•9m ago•0 comments

Scaling Trust Arena: An agentic economy with a multi-million dollar prize pool

https://scalingtrust.org.uk/blog/update-on-the-scaling-trust-arena/
1•lukaspetersson•9m ago•0 comments

Show HN: An MCP server that lets AI agents create, send and analyze surveys

https://www.zigpoll.com
1•jason_zig•10m ago•0 comments

Can We Stop with the Uptime Percentages?

https://blog.jim-nielsen.com/2026/stop-with-the-uptime-percentage/
2•surprisetalk•10m ago•0 comments

Inside Meta's AI Infrastructure Lab in Menlo Park [video]

https://www.youtube.com/watch?v=okSHoVPrf8o
2•helloplanets•11m ago•0 comments

Show HN: Cleanroom, a coding agent with a notebook for decisions and learning

https://github.com/Ag3497120/cleanroom
1•pakupaku•11m ago•0 comments

How GCC Eliminates Unnecessary Integer Division

https://leetarxiv.substack.com/p/how-gcc-eliminates-unnecessary-integer
1•snikolaev•11m ago•0 comments

ProtonSync

2•carlostkd•12m ago•0 comments

Parallel Constrained Decoding

https://twitter.com/harshagundal/status/2100044305536889015
1•rochansinha•13m ago•0 comments

Who's buying your personal data: Disney, GM, your insurer and bank

https://calmatters.org/economy/technology/2026/09/whos-buying-your-personal-data-disney-gm-your-i...
1•cdrnsf•13m ago•0 comments

Is AI Writing American Law?

https://www.effort.news/ai-congress
1•pr337h4m•17m ago•0 comments

Veronese's Dogs

https://publicdomainreview.org/essay/veroneses-dogs
2•prismatic•18m ago•0 comments

A Woman Cured Her Cancer with an Insane Method [video]

https://www.youtube.com/watch?v=0NY2gAftzJE
2•joebig•19m ago•1 comments

GLM 5.3 is live on Mistral

https://docs.mistral.ai/en/models/zai-glm-5-3
1•biehl•21m ago•0 comments

Devolver says indie publishing is not 'compatible' with public trading

https://www.gamedeveloper.com/business/devolver-wants-to-delist-because-indie-publishing-is-not-c...
2•paimapi•21m ago•0 comments

California's High Speed Rail to Nowhere [video]

https://www.youtube.com/watch?v=uli5FI_5y2c
2•Bender•21m ago•0 comments

Autism is genetic – and why this information matters now

https://www.autism.org.uk/blog/autism-is-genetic-%E2%80%93-and-why-this-information-matters-now
1•AndrewDucker•22m ago•0 comments

Geography Is Power

https://www.nytimes.com/2026/09/16/briefing/the-houthis.html
1•voxleone•23m ago•0 comments

Show HN: Blue – open-source governance for coding agents

https://bluee.sh/
1•tomislavs•23m ago•0 comments

Show HN: A distributed C++ Monte Carlo API for exotic options pricing

https://prometheusquantengine.com/web-docs
1•quant_architect•23m ago•0 comments

Show HN: Orthant, an open-source macOS window manager where you draw the region

https://orthant.app/
1•jingweno•23m ago•0 comments

Homeostatic Feelings and the Biology of Consciousness

https://academic.oup.com/brain/article/145/7/2231/6594735
1•Bluestein•25m ago•0 comments

Show HN: Docx-to-Markdown – layout-aware Word to Markdown converter

https://www.docx-editor.dev/solutions/word-to-markdown
2•thisisjedr•26m ago•2 comments

New stealth model: Union Alpha

https://openrouter.ai/stealth/union-alpha
7•jlaneve•26m ago•1 comments
Open in hackernews

Ask HN: Why is big O often used in CS when omega or theta should be used?

2•amichail•1y ago
Do most people not know about omega and theta or perhaps they intentionally misuse asymptotic notation?

Comments

adrianN•1y ago
Finding lower bounds is generally more difficult.
amichail•1y ago
People often use big O notation in all cases including for lower bounds.
adrianN•1y ago
BigO for lower bounds is plain wrong
numpad0•1y ago
Those aren't in the ASCII table.
compressedgas•1y ago
I've found some people on a well known QA site to be so strict with big-O notation that I don't use it anymore and instead only refer to constant, linear, quadratic time and so on. Even when O(1), O(n), O(n^2) would be actually easier to write even if they are technically wrong.