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Scalable Fluxonium Quantum Processors via Tunable-Coupler Architecture

https://arxiv.org/abs/2604.13363
1•jonbaer•1m ago•0 comments

Anthropic installs spyware when you install Claude Desktop

https://www.thatprivacyguy.com/blog/anthropic-spyware/
3•twapi•5m ago•0 comments

The Khan Ted Institute [video]

https://www.youtube.com/watch?v=kEhRi1tFlhs
1•apparent•7m ago•0 comments

Contra Benn Jordan, data center (and all) sub-audible infrasound issues are fake

https://blog.andymasley.com/p/contra-benn-jordan-data-center-and
1•logicprog•11m ago•0 comments

Where Did FIFA Seat Lottery Winners?

https://seat-transparency.com/
2•hnburnsy•14m ago•0 comments

Deception is strongly amplified in the job market (a statistical model)

https://bosoncutter.substack.com/p/deception-is-amplified-by-default
3•the_tyger•19m ago•1 comments

Why every developer needs their own agent-skills

https://olshansky.substack.com/p/why-every-developer-needs-their-own
1•Olshansky•20m ago•0 comments

Vercel Incident Response Playbook

https://github.com/OpenSourceMalware/vercel-april2026-incident-response
3•6mile•27m ago•3 comments

Third New Glenn launch suffers upper stage malfunction

https://spacenews.com/third-new-glenn-launch-suffers-upper-stage-malfunction/
2•ExpertAdvisor01•37m ago•2 comments

Google should allow third-party search engines access to data, EU says

https://www.reuters.com/world/google-should-allow-third-party-search-engines-access-data-eu-says-...
3•1vuio0pswjnm7•37m ago•1 comments

Show HN: TikTok-style mobile scroller for Civitai, self-hosted recs on a $5 VPS

https://testflight.apple.com/join/JkKUCXY6
1•alongbottom•38m ago•0 comments

Earthset

https://twitter.com/astro_reid/status/2046009031613907029
1•jbegley•45m ago•0 comments

Salesforce Announces AI Initiative and Calls It 'Headless 360'

https://gizmodo.com/salesforce-announces-huge-ai-initiative-and-calls-it-headless-360-2000748243
4•Brajeshwar•48m ago•0 comments

Show HN: A free, offline-capable math quiz app

https://quiz.neuralrad.com
1•coolwulf•50m ago•1 comments

AAVE price sinks 18% as KelpDAO exploit spreads

https://ambcrypto.com/aave-price-sinks-18-as-kelpdao-exploit-spreads-what-happened/
1•wslh•52m ago•0 comments

China's 7-tonne cargo drone completes maiden flight

https://news.cgtn.com/news/2026-03-31/China-s-new-7-tonne-unmanned-cargo-drone-set-for-maiden-fli...
4•pseudolus•55m ago•1 comments

"In Your Darkest Days, How Did You Keep Going?"

https://www.youtube.com/watch?v=D_E4Be4Or_E
1•Brysonbw•55m ago•1 comments

Show HN: Vastlint, inline linting for ad tags in VS Code, Kiro, Cursor

https://github.com/aleksUIX/vastlint
3•aleksuix•56m ago•0 comments

The insider trading suspicions looming over Trump's presidency

https://www.bbc.com/news/articles/cge0grppe3po
77•blondie9x•57m ago•14 comments

Claude-desktop-buddy [small ESP32 hardware companion software]

https://github.com/anthropics/claude-desktop-buddy
1•daniel_iversen•1h ago•0 comments

Vinjari – Decentralized Browser

https://github.com/jj10133/vinjari
1•jj_3•1h ago•1 comments

GPT-6 released: Symphony architecture unifies text/image/audio/video

https://www.theverge.com/2026/4/14/openai-gpt-6-symphony-architecture
3•demiurges•1h ago•0 comments

Mosaico: A fast, configurable tiling window manager for Windows

https://github.com/jmelosegui/mosaico
2•jmelosegui•1h ago•0 comments

Chamath Palihapitiya's 30 Years of Business Advice in 13 Minutes

https://www.youtube.com/watch?v=0-LAT4HjWPo
1•Brysonbw•1h ago•0 comments

Show HN: I built a spaced-repetition vocab app tied to the books you read

https://read.erictyrrell.com/
2•Cicero22•1h ago•1 comments

Screenless Smartphone Patent

https://carsafe.org/soundmode/
2•ASFsound•1h ago•0 comments

Show HN: Modular – drop AI features into your app with two function calls

https://modular.run
5•modular_dev•1h ago•1 comments

Show HN: I built a local Elixir/Python pipeline to curate 14,000 RAW photos

https://qwelian.com/posts/FINE_SHYT_Intelligent_Curation_Tagging_for_Creative_Workflows
2•qweliantanner•1h ago•1 comments

How to Set Up OneBusAway Maglev with Bay Area Transit Data

https://opentransitsoftwarefoundation.org/2026/04/setting-up-maglev-bay-area-transit-data/
3•aaronbrethorst•1h ago•0 comments

Linux Foundation: Building a RISC-V CPU Core (LFD111x)

https://training.linuxfoundation.org/training/building-a-riscv-cpu-core-lfd111x/
3•xlmnxp•1h 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•11mo ago
Do most people not know about omega and theta or perhaps they intentionally misuse asymptotic notation?

Comments

adrianN•11mo ago
Finding lower bounds is generally more difficult.
amichail•11mo ago
People often use big O notation in all cases including for lower bounds.
adrianN•11mo ago
BigO for lower bounds is plain wrong
numpad0•11mo ago
Those aren't in the ASCII table.
compressedgas•11mo 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.