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Running local models is good now

https://vickiboykis.com/2026/06/15/running-local-models-is-good-now/
405•jfb•2h ago•200 comments

SpaceX to buy Cursor for $60B

https://www.reuters.com/legal/transactional/spacex-buy-anysphere-60-billion-2026-06-16/
400•itsmarcelg•6h ago•727 comments

Mechanical Watch (2022)

https://ciechanow.ski/mechanical-watch/
479•razin•5h ago•90 comments

TIL: You can make HTTP requests without curl using Bash /dev/TCP

https://mareksuppa.com/til/bash-dev-tcp-http-without-curl/
22•mrshu•43m ago•3 comments

Making ast.walk 220x Faster

https://reflex.dev/blog/why-ast-walk-when-you-can-ast-sprint/
27•palashawas•58m ago•6 comments

SubQ 1.1 Small

https://subq.ai/subq-1-1-small-technical-report
61•EDM115•2h ago•26 comments

But yak shaving is fun

https://parksb.github.io/en/article/32.html
53•parksb•2h ago•10 comments

Correlated randomness in Slay the Spire 2

https://tck.mn/blog/correlated-randomness-sts2/
205•rdmuser•7h ago•64 comments

Never talk to the police

https://www.campolalaw.com/why-you-should-never-talk-to-the-po
53•Cider9986•1h ago•25 comments

I admire Fabrice Bellard. He is almost certainly a better overall programmer

https://twitter.com/ID_AA_Carmack/status/2064095424420487226
718•apitman•12h ago•353 comments

Apple's weird anti-nausea dots cured my car sickness

https://www.theverge.com/tech/942854/apple-vehicle-motion-cues-review-really-work
91•neilfrndes•1h ago•28 comments

After AI Takes Everything

https://ursb.me/en/posts/after-ai-takes-everything/
20•speckx•2h ago•3 comments

The time the x86 emulator team found code so bad they fixed it during emulation

https://devblogs.microsoft.com/oldnewthing/20260615-00/?p=112419
440•paulmooreparks•12h ago•140 comments

An interview with an Apple emoji designer

https://shadycharacters.co.uk/2026/06/ollie-wagner/
64•nate•2d ago•33 comments

Unicorn – The Ultimate CPU Emulator

https://www.unicorn-engine.org/
59•tosh•6h ago•18 comments

Getting Creative with Perlin Noise Fields

https://sighack.com/post/getting-creative-with-perlin-noise-fields
122•0x000xca0xfe•2d ago•20 comments

Qwen-Robot Suite: A Foundation Model Suite for Physical World Intelligence

https://qwen.ai/blog?id=qwen-robotsuite
25•ilreb•4h ago•1 comments

Banned book library in a wi-fi smart light bulb

https://www.richardosgood.com/posts/banned-book-library/
536•sohkamyung•18h ago•319 comments

Feds freaked over Fable 5 after 'fix this code', not jailbreak, say researchers

https://www.theregister.com/security/2026/06/15/feds-freaked-over-fable-5-after-simple-fix-this-c...
451•_tk_•7h ago•276 comments

The Manhoff Archives: Color photos of Stalin-era USSR taken by a US diplomat

https://www.rferl.org/a/the-manhoff-archive/28359558.html
134•Cider9986•2d ago•42 comments

I hacked into the worst e-bike and fixed it [video]

https://www.youtube.com/watch?v=hPrtVGimBYs
158•alexis-d•5d ago•76 comments

GateGPT: 56k tokens per second Transformer (KV cache) on FPGA at 80 MHz

https://twitter.com/fguzmanai/status/2065832668172845209
17•laxmena•1h ago•5 comments

Making espresso with ultrasound

https://www.unsw.edu.au/newsroom/news/2026/06/New-way-making-espresso
46•darktoto•8h ago•52 comments

A backdoor in a LinkedIn job offer

https://roman.pt/posts/linkedin-backdoor/
1486•lwhsiao•21h ago•280 comments

Understanding the rationale behind a rule when trying to circumvent it

https://devblogs.microsoft.com/oldnewthing/20260611-00/?p=112415
93•tosh•9h ago•30 comments

The history of butterfly swimming

https://www.swimming.org/sport/history-of-butterfly/
20•mooreds•2d ago•24 comments

Trinket.io shutting down, so we saved it and hosted it a trinket.strivemath.org

https://trinket.strivemath.org/
90•apulkit6•7h ago•11 comments

Google Chrome update will close the door on ad blockers

https://9to5google.com/2026/06/15/google-chromes-next-update-will-mark-the-end-of-popular-ad-bloc...
216•speckx•3h ago•259 comments

'Ghost jobs' could soon be illegal in New York

https://www.fastcompany.com/91558427/ghost-jobs-could-soon-be-illegal-in-new-york
11•toomuchtodo•22m ago•1 comments

I Love the Computer

https://michaelenger.com/blog/i-love-the-computer/
291•speckx•21h ago•156 comments
Open in hackernews

The history of butterfly swimming

https://www.swimming.org/sport/history-of-butterfly/
20•mooreds•2d ago

Comments

AtlasBarfed•1h ago
Butterfly is the "three point shot" of swimming. If you can do a pool length of butterfly you are a "real" swimmer, kind of like a non-prayer three point shot implies you actually played basketball.
dfee•1h ago
butterfly is interesting because it's faster than breaststroke (mentioned) but slower than freestyle. it also consumes far more energy than any other stroke.

to that end, i'm not sure why it exists, except that it's truly a unique style.

* i also still hold my high school's butterfly record, 20 years on.

forinti•1h ago
I think the objective is to show how strong you are. If you wanna go fast, use freestyle, if you want to conserve energy, use breaststroke or backstroke. I don't see a reason to use the butterfly outside of a butterfly competition.
Contax•31m ago
In my case the reason is to exercise. I really like it as an exercise. Though I also practice the other strokes for more variety, and fun, when I'm short of time butterfly is my choice.
slwvx•50m ago
> to that end, i'm not sure why it exists, except that it's truly a unique style.

Many people swim as a form of exercise. Fly is exercising different muscles and allows me to get my heart rate up higher than freestyle

Fly is useful to train for other strokes

Perhaps more importantly, I think that having a different stroke to do makes swimming more interesting. Whether doing sets as part of a swim team or on your own, it's more interesting when you can vary things. The more swimming is interesting, the easier it is to enjoy and keep doing it

sleepydog•43m ago
The modern Olympics is at least as much for entertainment as it is for measuring human ability, and the butterfly is simply an awe-inspiring technique. The line of swimmers repeatedly shooting out of the water like flying fish is mesmerizing. Who cares if they're not going as fast as freestyle?
Bratmon•1h ago
I never quite understood why there are Olympic medals for Butterfly swimming, but not things like "100m hop-on-one-foot sprint"

Like, why is being good at a deliberately-inefficent form of movement worth a medal in only this one case?

skinfaxi•1h ago
Deliberately-inefficient compared to what? TFA leads with:

> Swimmers and coaches began to realise that breaststroke was quicker when a swimmer recovered their arms forward above the water and the arm technique – as well as the swimming term ‘butterfly’ – was born.

john_strinlai•1h ago
the butterfly stroke is the most energy-inefficient stroke, i believe, despite being quicker.
Bratmon•1h ago
I noticed the article pointedly didn't compare the stroke to the forward crawl, which is clearly both faster and more efficient.

There's no real way to compare the butterfly and the forward crawl that doesn't make the butterfly look like a ridiculous farce.

marttt•55m ago
This whole story somehow reminds me of the Fosbury flop technique in high jump -- amazingly, Dick Fosbury started to develop it at the age of 16: https://en.wikipedia.org/wiki/Dick_Fosbury#High_school_and_t...

From the Wikipedia article on Fosbury:

"The technique gained the name the "Fosbury Flop" when in 1964 the Medford Mail-Tribune ran a photo captioned "Fosbury Flops Over Bar," while in an accompanying article a reporter wrote that he looked like "a fish flopping in a boat." Others were even less kind, with one newspaper captioning Fosbury's photograph, "World's Laziest High Jumper""

dan_sbl•42m ago
> unveiling it to the confusion of officials and competitors in a 150 yard medley race in 1933

The article doesn't say, but did the medley relay/IM become a 4 stroke event around the same time in 1952 when FINA recognized it as a new stroke? Funny to see a 150 yard event mentioned since it seems like such an odd distance nowadays.

tokai•1h ago
>deliberately-inefficent

If that's how we judge things, there should only be races on bicycles.

ggreer•1h ago
Allowing a bicycle would be like if swimming competitions allowed fins. A more accurate mapping to the swimming strokes would be race walking, which is widely ridiculed.
tokai•1h ago
No, if efficiency can be used to evaluate if a sport is legit, only cycling should be allowed. No running or swimming. The point is that efficiency is an asinine ground to judge a sport on.
jolt42•58m ago
Agreed. Wasn't track barefoot back in the day? I mean even shoes are an advantage. Swimming sped up after goggles and swimcaps were accepted. I think it's all just where do you decide to draw the line? I've thought badminton is an odd sport, the shuttlecock is so slow anyone can (normally) play it - it's very inefficient. And don't get me started on equestrian if grandpa can win it then shouldn't the horse get the medal?
ggreer•45m ago
For sprints, shoes give additional traction for faster starts, but don't increase running efficiency. For distance events, shoes were just extra weight, and barefoot runners have won Olympic competitions.[1] Recently, springy "super shoe" designs have shown up.[2] They've been banned from most competitions, but it looks like less effective versions of the design are still allowed under current rules.

I would prefer that shoes be restricted to designs that don't allow for higher efficiency than barefoot running, but sport rules tend to lag technology advances.

1. https://en.wikipedia.org/wiki/Abebe_Bikila

2. https://en.wikipedia.org/wiki/Nike_Vaporfly_and_Tokyo_2020_O...

nradov•5m ago
The economic survival of running as an elite or professional sport depends on sponsorship from shoe companies. So super shoes aren't going to be banned. It's too late to go back.

World Athletics defines the rules for shoes in most running events. They're limited to a stack height of 20mm or 40mm depending on the event (along with certain other limits).

https://worldathletics.org/about-iaaf/documents/book-of-rule...

polyrand•43m ago
Finswimming is actually a separate sport, just not an olympic sport. Although it has some exciting characteristics like very fast 50 meter races, which I enjoy as a "regular" (non-fins) swimmer.
ggreer•1h ago
This quirk of competition is why swimmers can win a ridiculous number of medals. If swimming only had freestyle, Michael Phelps would have 7 gold medals instead of 23.
gosub100•1h ago
There are much bigger problems with the Olympics than that. Such as selling the rights and advertising for billions while paying the athletes nothing.
forinti•57m ago
The first modern Olympics did have sack races. That would be entertaining.
DennisP•35m ago
That's a funny take and I'm tempted to agree, since butterfly was the bane of my existence as a skinny swimmer in high school. But hopping on one foot was never a rule hack that gave you an advantage in some preexisting event. Butterfly was, and rather than banning it they made it a new event. Plus it looks cool, if you're a lot better at it than I was.
Angostura•29m ago
You’re familiar with the walking competition?