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A New Framework for How the Brain Compresses Our Noisy World

https://www.quantamagazine.org/a-new-framework-for-how-the-brain-compresses-our-noisy-world-20260...
1•isaacfrond•1m ago•0 comments

Ask HN: Why do you use Ubuntu?

1•flanked-evergl•3m ago•0 comments

ByteDance Launches AI Office Product "Doubao Work"

https://www.ithome.com/0/993/865.htm
1•JulianVance•4m ago•1 comments

US removes Syria from terrorism sponsor list, lifting major investment obstacle

https://www.reuters.com/world/middle-east/us-removes-syrias-designation-state-sponsor-terrorism-2...
1•imadj•7m ago•0 comments

Effect v4 core package now has no external dependencies

https://twitter.com/tim_smart/status/2092430414837407896
1•tosh•7m ago•0 comments

Ask HN: What are you using to access x.com at the moment?

1•throwaw12•7m ago•0 comments

Bill Gates says world has "no plan" on AI in new essay

https://www.gatesnotes.com/a-turbulent-ai-era-and-critical-choices-to-make
2•aroman•10m ago•0 comments

S21

https://store.steampowered.com/app/4953120/S21/
2•ofrzeta•11m ago•1 comments

Dollywood

https://en.wikipedia.org/wiki/Dollywood
1•thunderbong•11m ago•0 comments

How to export Gemini chat to word without losing formatting [video]

https://www.youtube.com/watch?v=PZZGjJpPDM0
2•slimcrm•12m ago•1 comments

A joke for founders about the perfect startup geography [20 secs]

https://www.mangialardi.it/the-startup-paradox/
1•rm30•12m ago•1 comments

CSS Runtime Performance

https://nolanlawson.github.io/css-talk-2022/#1
1•luu•14m ago•0 comments

Show HN: Buslens – where can I get to by bus? (UK)

https://rupertlinacre.com/buslens/
1•RobinL•16m ago•0 comments

The Cowpox of Doubt (2014)

https://slatestarcodex.com/2014/04/15/the-cowpox-of-doubt/
1•pr337h4m•21m ago•0 comments

Disrupting a new covert influence campaign from Russia

https://openai.com/index/disrupting-malicious-uses-of-ai-influence-campaign-russia/
3•sam_lowry_•22m ago•0 comments

More than 100 suspicious images in Thermo Fisher antibody catalogue

https://www.nature.com/articles/d41586-026-01706-2
1•isaacfrond•24m ago•0 comments

Chinese regulators tell Tesla to fix nearly 3M cars

https://arstechnica.com/cars/2026/08/chinese-regulators-tell-tesla-to-fix-nearly-3-million-cars/
2•rbanffy•25m ago•1 comments

Global All Purpose Script

2•manesiro•26m ago•2 comments

World humanoid robot games show runners breaking records, bursting into flames

https://arstechnica.com/ai/2026/08/world-humanoid-robot-games-show-runners-breaking-records-burst...
2•robin_reala•34m ago•0 comments

NEET: Not in Education, Employment or Training. It's too late to fix this, but

https://www.virtueonline.org/post/neet-not-in-education-employment-or-trainingit-s-too-late-to-fi...
2•Michelangelo11•34m ago•0 comments

Show HN: Octomind Routines – scheduled agents on persistent cloud machines

https://octomind.run/blog/routines-scheduled-agents
1•donk8r•37m ago•0 comments

France, Saudi Arabia agree on €6B Dragon Ball Z theme park project near Paris

https://www.reuters.com/world/middle-east/france-saudi-arabia-agree-6-billion-dragon-ball-z-theme...
5•mmarian•37m ago•0 comments

Miroslav Tichý

https://en.wikipedia.org/wiki/Miroslav_Tich%C3%BD
2•Michelangelo11•41m ago•1 comments

Declinism

https://en.wikipedia.org/wiki/Declinism
3•soupspaces•42m ago•0 comments

A more nuanced view of LLMs

https://anarc.at/blog/2026-08-25-llm-nuance/
2•lumpa•43m ago•0 comments

Perplexity: A Local-First Agent for Private Knowledge Work

https://www.perplexity.ai/hub/blog/a-local-first-agent-for-private-and-cost-effective-knowledge-work
3•tosh•44m ago•0 comments

A Tour of Differentiable Rasterization

https://srush.github.io/DiffRast/
1•coffeeaddict1•46m ago•0 comments

Glyphcss › an ASCII render playground for 3D models (OBJ, glTF, STL, .vox)

https://glyphcss.com/gallery/
1•zakxxi•49m ago•0 comments

ArXiv: CTTE: An Open Dual-Protocol RISC-V Trace Encoder for N-Trace and E-Trace

https://arxiv.org/abs/2608.18170
1•xlbxrt•49m ago•0 comments

The tech community has lost an icon

https://twitter.com/RonConway/status/2092269443653181673
1•tosh•50m ago•0 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.