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What color is this dot? New illusion demonstrates weird vision quirk

https://www.scientificamerican.com/article/what-color-is-this-dot-new-illusion-demonstrates-weird-vision-quirk/
2•Brajeshwar•1h ago

Comments

JohnFen•44m ago
I can't remember a time before when an optical illusion didn't work for me, but this 100% doesn't work for me.
Teknomadix•38m ago
Here I see 9 distinctly purple dots. On a phone screen. The depth of field about a half arms length. Despite what the article says, I see all dots — the one I'm focused upon — as well as all those in peripheral vision as purple. The illusion does not apply to my visual cortex.

Back to the drawing board.

JohnFen•32m ago
I think I may have found the reason in the Maxwell's Spot PDF the article links to. It says:

"The reason why this illusion [Maxwell's Spot] does not tend to be clearly visible with LCDs may be because the peak wavelength of blue in LCDs is on the shorter wavelength side than 460nm."

I don't know what technology my monitor is using, but it's possible it's LCD. Or maybe OLEDs have a similar color shift.

Viruses in the gut may help prevent blood sugar spikes, mouse study hints

https://www.livescience.com/health/immune-system/viruses-in-the-gut-may-help-prevent-blood-sugar-...
1•Brajeshwar•35s ago•0 comments

Little Piggy Went to Trial (and Got Just $200 and No Fees)

https://copyrightlately.com/prepared-food-photos-jaber/
1•speckx•2m ago•0 comments

There are only two paths left for software

https://www.a16z.news/p/there-are-only-two-paths-left-for
1•7777777phil•6m ago•0 comments

Experimenting with Starlette 1.0 with Claude skills

https://simonwillison.net/2026/Mar/22/starlette/
2•TheTaytay•6m ago•0 comments

Show HN: Aerko_ – An offline-first, Vanilla JavaScript fitness PWA with local AI

https://github.com/SrPakura/AERKO_PWA
1•SrPakura•7m ago•1 comments

GrapheneOS won't force users to verify their age

https://twitter.com/GrapheneOS/status/2034957604682621229
1•ianrahman•8m ago•0 comments

UN issues new climate warning as El Niño looms

https://www.bbc.com/news/articles/c203rdxkezwo
1•blondie9x•9m ago•1 comments

Repairing Programs with AI Agents

https://penberg.org/blog/rp.html
1•penberg•9m ago•0 comments

PostgreSQL 19 will have pg_plan_advice contrib module (query hints)

https://www.depesz.com/2026/03/22/waiting-for-postgresql-19-add-pg_plan_advice-contrib-module/
1•tanelpoder•10m ago•0 comments

If Dspy is so great, why isn't anyone using it?

https://skylarbpayne.com/posts/dspy-engineering-patterns/
3•sbpayne•10m ago•2 comments

VisionClaude – Open-Source AI Vision for iPhone and Meta Ray-Ban Glasses

https://github.com/mrdulasolutions/visionclaude
1•mrdulasolutions•10m ago•0 comments

Meta faces potential billions in fines in trial over children's safety practices

https://www.latimes.com/business/story/2026-03-23/meta-faces-potential-billions-in-fines-in-trial...
3•1vuio0pswjnm7•11m ago•1 comments

The Rise of the Ray-Ban Meta Creep

https://www.wired.com/story/the-rise-of-the-ray-ban-meta-creep/
1•sharkweek•11m ago•0 comments

Wizards of Leroy and Wrico Lettering

https://kleinletters.com/Blog/wizards-of-leroy-and-wrico-lettering/
1•speckx•11m ago•0 comments

Show HN: An extension opens any Goodread book on Anna's arc,Z-Lib in one click

https://github.com/NubPlayz/GoodLib-Zlib-Goodreads-extension
1•NubPlayz•12m ago•0 comments

An AI game teaser commented by an AI bot

https://old.reddit.com/r/ArtificialSentience/comments/1ry37s0/im_making_a_game_where_you_play_as_...
1•stared•13m ago•0 comments

Traffic Genius Review: Get 100K+ Traffic Using a Stupidly Simple 7-Minute System

https://websites2know.com/traffic-genius-review/
1•WallaceWalley•13m ago•0 comments

Deliberate Reflection: Meditation to speed up learning and problem-solving

https://www.seanmuirhead.com/blog/deliberate-reflection
1•seany62•13m ago•0 comments

Show HN: Columbo – a CLI that finds forgotten K8s pods using a suspicion score

https://github.com/k-krew/columbo
1•kreicer•16m ago•0 comments

Ask HN: How many of you are profiting with LLM wrapper apps?

1•general_reveal•17m ago•0 comments

The Em Dash Conununundrum

https://skryblans.com/the-em-dash-conununundrum/
1•speckx•18m ago•1 comments

Ask HN: If there has been no prompt injection, is it safe?

1•sayYayToLife•20m ago•0 comments

NASA sets 'impossible' ground rules for relocation of 'flown space vehicle'

https://www.theregister.com/2026/03/23/nasa_rfp_shuttle_relocation/
1•Brajeshwar•20m ago•0 comments

Software engineer who scaled a startup from 10 → 500, seeking early-stage roles

2•vampiregrey•23m ago•0 comments

Agentic AI. Demystified

https://www.youtube.com/watch?v=MQW3vYVqEPk
2•frag•23m ago•0 comments

BIO: The Bao I/O Coprocessor

https://www.bunniestudios.com/blog/2026/bio-the-bao-i-o-coprocessor/
1•winkywooster•25m ago•0 comments

FoodPilot – weekly meal planner that pulls in Canada local grocery deals

https://www.foodpilot.ai/index-en.html
1•cedricyul•26m ago•0 comments

Set intersection and difference at the command line

https://www.johndcook.com/blog/2026/03/23/intersection-difference/
1•leephillips•26m ago•0 comments

Study: 'Security Fatigue' May Weaken Digital Defenses

https://www.albany.edu/news-center/news/2026-study-security-fatigue-may-weaken-digital-defenses
2•giuliomagnifico•27m ago•0 comments

RocksDB unit test finds a CPU bug

https://rocksdb.org/blog/2026/02/17/cpu-bug.html
3•shay_ker•27m ago•0 comments