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Show HN: Strooptest.run – a dead-simple, browser-only Stroop Test

https://strooptest.run/

1•gregzeng95•6h ago

Hey HN,

I made https://strooptest.run, a super simple Stroop test you can try in under a minute.

No ads, no sign-up, just a clean way to test your brain’s reaction time and focus.

Would love feedback or ideas for what to add next!

Comments

wordglyph•1h ago

I might have missed it but I would have liked to know how many I had to do at the start of the test. I did the hardest one. And about half way thru was like when is this going to end. Lol. But I got 100/100 correct.

Wall Street hedge funds are gambling millions on Eaton fire insurance claims

https://www.latimes.com/environment/story/2025-06-24/wall-street-investors-try-to-profit-from-eaton-fire-insurance-claims

1•PaulHoule•2m ago•0 comments

Soham Tracker

https://www.sohamtracker.com

2•hlau•2m ago•0 comments

Roadmap Towards the Redefinition of the Second

https://iopscience.iop.org/article/10.1088/1681-7575/ad17d2

1•fanf2•4m ago•0 comments

Largest-Known Martian Meteorite Lands on the Auction Block

https://news.artnet.com/art-world/mars-meteorite-sothebys-auction-2663688

1•andsoitis•4m ago•0 comments

I'm 15 and just open sourced yurei-app: an AI social media researcher

https://github.com/KasPeR0990/yurei-app

1•kasper_0990•6m ago•1 comments

.NET Memory Model

https://github.com/dotnet/runtime/blob/main/docs/design/specs/Memory-model.md

2•Metalnem•6m ago•0 comments

We Serve Millions of Requests on a Single VM

https://gametorch.app/blog/how-we-serve-millions-of-requests

1•gametorch•8m ago•0 comments

Neither AI nor E Ink can make touchscreen trackpads a good idea

https://www.engadget.com/computing/laptops/neither-ai-nor-e-ink-can-make-touchscreen-trackpads-a-good-idea-202505733.html

1•Bluestein•9m ago•0 comments

CSS conditionals with the new if() function

https://developer.chrome.com/blog/if-article

1•avivkeller•10m ago•0 comments

The American Party

https://www.americanparty.lol/

1•stophecom•12m ago•0 comments

Show HN: We paused our best-performing ad

https://www.kruxel.com/

1•bmahir•12m ago•0 comments

How the Hottest Place in India Survives

https://www.nytimes.com/2025/07/01/world/asia/india-heat.html

1•mitchbob•12m ago•1 comments

Comet, the browser from Perplexity – Browse at the speed of thought

https://www.perplexity.ai/comet/gettingstarted

1•gfortaine•13m ago•0 comments

Future of the Login Status API

https://github.com/w3c-fedid/login-status/issues/8

1•mooreds•14m ago•0 comments

Just Ask for Generalization

https://evjang.com/2021/10/23/generalization.html

1•jxmorris12•15m ago•0 comments

'Positive review only': Researchers hide AI prompts in papers

https://asia.nikkei.com/Business/Technology/Artificial-intelligence/Positive-review-only-Researchers-hide-AI-prompts-in-papers

3•joak•16m ago•0 comments

What every programmer should know about how CPUs work [video]

https://www.youtube.com/watch?v=-HNpim5x-IE

2•bschne•17m ago•0 comments

Ask HN: What are the best resources to help with health insurance denials?

2•cigna•17m ago•2 comments

Wind Knitting Factory

https://www.merelkarhof.nl/work/wind-knitting-factory

7•bschne•17m ago•2 comments

Call center staffers explain how AI assistants aren't great

https://www.theregister.com/2025/07/02/call_center_ai_assistants/

2•speckx•18m ago•0 comments

High-Fidelity Simultaneous Speech-to-Speech Translation

https://arxiv.org/abs/2502.03382

2•Bluestein•19m ago•0 comments

Gameboy Camera Photography

http://www.ekeler.com/gameboy-camera-photography

1•azhenley•21m ago•0 comments

Kyutai 1.6B Streaming TTS

https://huggingface.co/kyutai/tts-1.6b-en_fr

3•robotswantdata•24m ago•0 comments

How to make writing less hard

https://www.oliverburkeman.com/onwriting

1•smartmic•25m ago•0 comments

Ask HN: How can I make 1M dollars?

3•roschdal•29m ago•2 comments

H.R.1 Sec. 70302. Full expensing of domestic research, experimental expenditures

https://www.congress.gov/bill/119th-congress/house-bill/1/text#:~:text=SEC.%2070302.%20FULL%20EXPENSING%20OF%20DOMESTIC%20RESEARCH%20AND%20EXPERIMENTAL%20%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20EXPENDITURES.%0A%0A%20%20%20%20(a)%20In%20General.%2D%2DPart%20VI%20of%20subchapter%20B%20of%20chapter%201%20is%20amended%20by%20%0Ainserting%20after%20section%20174%20the%20following%20new%20section%3A

3•ericpauley•29m ago•1 comments

YouTube Targets Mass-Produced Content in Monetization Update

https://www.searchenginejournal.com/youtube-targets-mass-produced-content-in-monetization-update/550337/

4•Bluestein•29m ago•0 comments

Speeding up pgstream snapshots for PostgreSQL

https://xata.io/blog/behind-the-scenes-speeding-up-pgstream-snapshots-for-postgresql

1•mebcitto•29m ago•0 comments

RawBench: A minimal prompt evaluation framework

https://github.com/0xsomesh/rawbench

1•handfuloflight•30m ago•0 comments

Seeking feedback on a new row-level DB auditing tool (built by a DBA)

2•nitin_flanker•30m ago•1 comments