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List animals until failure

https://rose.systems/animalist/
39•l1n•3h ago•17 comments

Mobile carriers can get your GPS location

https://an.dywa.ng/carrier-gnss.html
519•cbeuw•11h ago•331 comments

Cells use 'bioelectricity' to coordinate and make group decisions

https://www.quantamagazine.org/cells-use-bioelectricity-to-coordinate-and-make-group-decisions-20...
13•marojejian•5h ago•1 comments

In praise of –dry-run

https://henrikwarne.com/2026/01/31/in-praise-of-dry-run/
93•ingve•8h ago•60 comments

pg_tracing: Distributed Tracing for PostgreSQL

https://github.com/DataDog/pg_tracing
11•tanelpoder•3d ago•1 comments

Generative AI and Wikipedia editing: What we learned in 2025

https://wikiedu.org/blog/2026/01/29/generative-ai-and-wikipedia-editing-what-we-learned-in-2025/
105•ColinWright•7h ago•48 comments

Scientist who helped eradicate smallpox dies at age 89

https://www.scientificamerican.com/article/smallpox-eradication-champion-william-foege-dies-at-89/
165•CrossVR•3d ago•34 comments

Opentrees.org (2024)

https://opentrees.org/#pos=1/-37.8/145
33•surprisetalk•4d ago•3 comments

Outsourcing thinking

https://erikjohannes.no/posts/20260130-outsourcing-thinking/index.html
102•todsacerdoti•7h ago•87 comments

Sparse File LRU Cache

http://ternarysearch.blogspot.com/2026/01/sparse-file-lru-cache.html
6•paladin314159•4h ago•0 comments

Best of Moltbook

https://www.astralcodexten.com/p/best-of-moltbook
27•feross•7h ago•6 comments

Data Processing Benchmark Featuring Rust, Go, Swift, Zig, Julia etc.

https://github.com/zupat/related_post_gen
73•behnamoh•8h ago•31 comments

The Saddest Moment (2013) [pdf]

https://www.usenix.org/system/files/login-logout_1305_mickens.pdf
100•tosh•8h ago•19 comments

Demystifying ARM SME to Optimize General Matrix Multiplications

https://arxiv.org/abs/2512.21473
66•matt_d•8h ago•14 comments

Apple-1 Computer Prototype Board #0 sold for $2.75M

https://www.rrauction.com/auctions/lot-detail/350902407346003-apple-1-computer-prototype-board-0-...
36•qingcharles•2h ago•17 comments

Nintendo DS code editor and scriptable game engine

https://crl.io/ds-game-engine/
116•Antibabelic•10h ago•28 comments

Finland looks to introduce Australia-style ban on social media

https://yle.fi/a/74-20207494
541•Teever•11h ago•395 comments

Show HN: Minimal – Open-Source Community driven Hardened Container Images

https://github.com/rtvkiz/minimal
75•ritvikarya98•9h ago•24 comments

Wikipedia: Sandbox

https://en.wikipedia.org/wiki/Wikipedia:Sandbox
64•zaptrem•1d ago•16 comments

Swift is a more convenient Rust (2023)

https://nmn.sh/blog/2023-10-02-swift-is-the-more-convenient-rust
251•behnamoh•6h ago•233 comments

Nvidia's 10-year effort to make the Shield TV the most updated Android device

https://arstechnica.com/gadgets/2026/01/inside-nvidias-10-year-effort-to-make-the-shield-tv-the-m...
115•qmr•13h ago•98 comments

CollectWise (YC F24) Is Hiring

https://www.ycombinator.com/companies/collectwise/jobs/ZunnO6k-ai-agent-engineer
1•OBrien_1107•8h ago

Ferrari vs. Markets

https://ferrari-imports.enigmatechnologies.dev/
48•merinid•2d ago•26 comments

Apple Platform Security (Jan 2026) [pdf]

https://help.apple.com/pdf/security/en_US/apple-platform-security-guide.pdf
145•pieterr•12h ago•109 comments

EV-1 for Lease (1996)

https://www.loe.org/shows/shows.html?programID=96-P13-00047#feature4
6•1970-01-01•2d ago•1 comments

Writing a .NET Garbage Collector in C# – Part 6: Mark and Sweep

https://minidump.net/writing-a-net-gc-in-c-part-6/
53•pjmlp•4d ago•1 comments

CPython Internals Explained

https://github.com/zpoint/CPython-Internals
181•yufiz•4d ago•43 comments

Show HN: Moltbook – A social network for moltbots (clawdbots) to hang out

https://www.moltbook.com/
161•schlichtm•3d ago•813 comments

Noctia: A sleek and minimal desktop shell thoughtfully crafted for Wayland

https://github.com/noctalia-dev/noctalia-shell
48•doener•9h ago•19 comments

When will CSS Grid Lanes arrive?

https://webkit.org/blog/17758/when-will-css-grid-lanes-arrive-how-long-until-we-can-use-it/
7•feross•5h ago•0 comments
Open in hackernews

U.S. life expectancy hits all-time high

https://www.scientificamerican.com/article/u-s-life-expectancy-hits-all-time-high/
31•brandonb•3h ago

Comments

drsalt•2h ago
There are many different populations in the USA. How useful is the overall life expectancy average? What decision can I make with this information?
readthenotes1•2h ago
It's bad news for social security and Medicare.

The men vs women numbers otherwise are pretty useless for the reason you gave

mmooss•1h ago
The significance is obvious: People in the US are getting healthier, by a significant metric. That doesn't matter? The US is a relativley well-defined group, sharing many inputs and consuming many of the same resources, including the same national health care resources for research, care, regulation, etc.

> There are many different populations in the USA.

Are you saying only your 'population' matters to you?

What do you mean by it exactly? There are lots of populations everywhere, and every population can be broken down into more populations. Any aggregate number won't describe you as an individual, even if it's a number for your own family.

Is this just a repeat of the old racial trope here?: https://news.ycombinator.com/item?id=46843222

drsalt•1h ago
no, i think you're imagining a lot of things. i'm just saying it is very coarse metric by which to understand anything at all. But, I'm not in any way educated in this metric so i'm open to anyone telling me how it is useful, like I asked initially.
N_Lens•2h ago
Yet still lower than other developed nations, especially considering the exorbitant expenditure (per capita) on healthcare.
0xy•2h ago
Impossible to compare without controlling for demographics. White people in the US have comparable rates to Europe.

Diversity means diversity in health outcomes, which are vastly different between groups.

Maxatar•1h ago
>White people in the US have comparable rates to Europe.

No it's not. White non Hispanic population in the U.S. has a life expectancy of 77.5, which is lower than the U.S. average life expectancy and comparable to Eastern Europe, but not Europe as a whole (life expectancy of 81.4).

mmooss•1h ago
That needs clear causal evidence that race somehow causes health outcomes, otherwise there's nothing distinguishing it from the old racial prejudice - now including blaming the victim:

There is a lot of evidence of a causal relationship between being non-white and having less access to healthcare, nutrition, and other things that affect health outcomes, and that evidence aligns well with being targets of racial discrimination.

When we just repeat baseless claims about race, we risk perpetuating it.

I've never seen evidence of a racial difference in accessing health care that is accessible. It's hard to believe skin color would affect that, while it's easy to believe (and witness) that it affects what you have access to.

aeternum•1h ago
If you exclude obese individuals US life expectancy is quite high. Health is the ultimate marginal good so exorbitant expenditure is relatively logical. You can't take the money with you so it often makes sense to spend on health even assuming extreme diminishing returns.
46493168•1h ago
>If you exclude obese individuals

The obesity rate in the US is 40%. The just-overweight rate is 33%. So unless we really ramp up on tackling obesity, the life expectancy is going be dragged down.

cthalupa•37m ago
Universal access to GLP1s would almost certainly effectively end the obesity problem.

SubQ pen injections are something even most people afraid of needles can get used to quite quickly, so even if the pill forms never get to the same efficacy there's really no reason that they couldn't solve it for most everyone once they go generic and become affordable, or become otherwise subsidized. China already produces the APIs in huge quantities for insanely cheap for sale on the black market, so we know that they can be produced for extremely low costs.

46493168•2m ago
And the US has no plans to do it, probably because the cost doesn't even out until 15+ years, outside the timeframe for congressional budget estimates.

The tragedy of short term thinking.

Maxatar•1h ago
Yes, if you exclude about half of the U.S. population (40% of Americans are obese) [1] then the U.S. has life expectancy that is on par with the rest of the developed world.

[1] https://www.cdc.gov/nchs/fastats/obesity-overweight.htm

skissane•55m ago
US obesity rates are around 40% of population. Australia, Canada, UK, it is around 30% of population. Canadian life expectancy is 3-4 years higher on average. UK around 3 years higher on average. Australia around 4-5 years higher

Does the gap in obesity rates fully explain the difference in life expectancy? Or are there other factors at play?

I don't think it actually does, because UK has lower obesity rates than Australia (26-29% versus 32%), yet also lower life expectancy (Australia is 81.1 male, 85.1 female; UK is 78.8 male, 82.8 female)

userbinator•2h ago
I've always found the numbers in https://en.wikipedia.org/wiki/List_of_countries_by_life_expe... rather interesting, because of how different the cultures and living conditions are even among the top countries. Hong Kong and Japan are always around the top, but so are Switzerland and Australia.
defrost•1h ago
Australia has

* food standards for shops and franchises .. McDonalds here has better salads that in the US,

* sport and activity as a fundemental part of most lives,

* good health care for all, even for "bottom tier" unemployed, with hybrid public/private health insurance and literal walk in, fall over, free heart surgery and follow up (for those that cannot pay).

Stats wise, higher life expectancy and better cancer survival rates*

* Yes, better, but not by much .. just cheaper and across the demographics.

cthalupa•27m ago
We have a huge amount of data around physical size being inversely correlated with lifespan. The bigger you are, no matter what drives it - height, muscle mass, body fat, etc. - the lower your life expectancy is.

Obviously lots of other factors, but it does help explain part of why we see much of the most developed portions of Asia at the top of the list.

Switzerland is an interesting counterpoint, though - average height there is taller than most of Europe - though their obesity rates are about half of that of the European average.

mullingitover•2h ago
It says a lot that the US isn’t beating poverty-stricken Cuba on this metric, considering the eye-watering prices that are extorted from patients.
coliveira•2h ago
The current admin is doing everything they can to stop this trend, but by making life worse in the island, as they don't want to do anything about the health of US citizens.
thomassmith65•1h ago
The healthcare system is one of the few things in Cuba that isn't dysfunctional. It's said to be excellent.
ch4s3•1h ago
> It's said to be excellent

This is laughably untrue.[1][2][3] They're lacked basic supplies for 30 years. Frequent blackouts also complicate or prevent many types of care.

[1] https://www.france24.com/en/live-news/20250709-bitter-pill-c...

[2] https://cuba.miami.edu/business-economy/a-close-look-at-cuba...

[3] https://en.wikipedia.org/wiki/Healthcare_in_Cuba

estebank•1h ago
> They're lacked basic supplies for 30 years.

Cuba has been under embargo for 66 years.

ch4s3•1h ago
The embargo doesn’t cover medical supplies and Cuban buys what medicine and medical supplies it has mainly from the US. The embargo also doesn’t cover food.

Cuba also does a lot of trade with China and Spain but has relatively little to actually sell because the state controlled industries are so unproductive. Cuba also has the least productive agricultural sector in the Caribbean, despite being the most productive before the revolution.

The embargo is no excuse it doesn’t cover other countries, and Cuba has always had European trade partners. In fact they received free oil, agricultural equipment, and technical support from the USSR, and later free oil from Venezuela until a few weeks ago.

thomassmith65•12m ago
The Cuban economy today is a shadow of what it was before the USSR fell apart, which makes it a moot point to claim they are dysfunctional despite foreign support. The Soviets successfully managed to keep Cuba afloat. Not that that constitutes a ringing endorsement for the Cuban system.
ch4s3•1m ago
That’s part of my point. They were a basket case with a ton of free support, and still are while trading with China and Europe. It’s just ridiculous to blame the embargo as ridiculous as the embargo is.

If you read what the Soviets had to say about the Cuban government it’s pretty damning.

programjames•1h ago
Under US embargo, not USSR.
ch4s3•1h ago
Or China, Spain, Venezuela, Mexico, and numerous other trade partners.
cthalupa•34m ago
No, but losing the wealthiest nation on the planet as a potential trading partner does mean that you are going to be selling your goods for less than you might be able to otherwise.

Being permanently locked out of the most lucrative deals obviously is going to have an economic impact.

thomassmith65•36m ago
As my comment implies, nearly everything else in Cuba is dysfunctional.

In one sense the Cuban healthcare system is mediocre, since it suffers from the shortages that plague the entire nation.

But that's like saying Cuban auto mechanics, who also suffer from shortages, are mediocre, despite their ability to keep the island's 70 year old American cars and Yugos in pristine condition.

trhway•1h ago
Just another datapoint - the infant mortality is 5.6 US vs. 6.5 Cuba and under five mortality is 6.5 vs. 8.3.
pinkmuffinere•2h ago
Is this not just because Covid killed off many of the weakest individuals? I suspect we just traded deaths in 2021 for deaths in 2025, making this latest data look better, without fundamental improvement. Not to say with confidence that _no_ improvement has been made, but that I think the stats for _this one year_ are probably not very meaningful. Maybe I misunderstood something though?
thesmtsolver2•1h ago
No, not just weeding out due to Covid.

If that was the case, you won't see death rates decrease across multiple groups and not just the weakest groups.

> Death rates declined across all racial and ethnic groups, and in both men and women.

https://www.medpagetoday.com/publichealthpolicy/publichealth...

> It's the result of not only the dissipation of the COVID-19 pandemicopens in a new tab or window, but also waning death rates from all the nation's top killers, including heart disease, cancer, and drug overdoses.

klooney•1h ago
GLP1 theory of everything
pinkmuffinere•49m ago
I think it would depend on how the “weakest groups” are decided. If the weakest 10% of 2021 all died, then the weakest 10% of 2022 will be people who were stronger than 2021’s weakest 10%. All the groups would propagate up to be stronger than in previous years. Now i don’t know how these groups are drawn, percentiles is just what makes intuitive sense to me.

The linked quotes don’t seem to support your argument, unless I misunderstand? If the weakest people die, then the remaining people are expected to be more resilient to heart disease and cancer.

I think decreases in drug overdose and suicide are probably the most isolated from this effect, so I have higher confidence that those decreases are “real”. But I can imagine ways that even they might interact.

jackschultz•1h ago
I wonder how much this might change in the coming years purely from GLP-1s. Articles like this[0] (which yes, Betteridge's law applies) talk about how it’s pretty likely they’ll be able to be used by everyone. But even now, taking people with cardiovascular high probabilities and dropping that risk way down purely by giving them the feeling that they’re more full more frequently is crazy to think about. Not sure opinions here but I’m at the point of telling my parents they should both be on these right now in their upper 60s.

Some people shrug it off or claim that they’re higher status because they lost weight via diet and exercise, but I map that to people who think they’re better programmers because they don’t use llms for coding, when the real result is what matters. Similar to people thinking AI slop, there are news articles about what happens if you stop GLP-1s and gain the weight back. But the stories of people who either continue to microdose, or also learn the feelings of their body and how it differs have long term success. Similar to those who know how to work with llms get good results, but the news is about how smarter people don’t use it.

All very interesting subjects. What a world we’re in.

[0] https://www.derekthompson.org/p/why-does-it-seem-like-glp-1-...

ls612•1h ago
Obesity reduction if seen through in the long run will have comparable benefits to smoking cessation. The scale of the win here is hard to overstate.
m0llusk•1h ago
Then the reductions in lean muscle mass will start to become visible in all cause mortality statistics. This could be a rough ride.
TheDong•1h ago
What does "less muscle-mass" mean in terms of mortality statistics?

We already know women live longer than men on average, and also have less muscle-mass than men on average, so clearly it's not having too much of an impact on women.

Without looking into actual statistics here, Japan is known for having a high life expectancy, and stereotypically Japan's population is both relatively thin, and has relatively little muscle, so that also seems to defy that expectation.

What sort of mortality are you expecting here?

m0llusk•57m ago
You seem to be working from base principles without consulting the literature.

https://pubmed.ncbi.nlm.nih.gov/28991040/ Conclusions: Low muscle strength was independently associated with elevated risk of all-cause mortality, regardless of muscle mass, metabolic syndrome, ...

https://www.amjmed.com/article/s0002-9343(14)00138-7/fulltex... Muscle mass is associated inversely with mortality risk in older adults independently of fat mass and cardiovascular and metabolic risk factors

And specifically GLP-1 usage is associated with significant loss of lean mass: https://pubmed.ncbi.nlm.nih.gov/38937282/ In some studies, reductions in lean mass range between 40% and 60% as a proportion of total weight lost ...

This might be a good start. There is quite a bit of material here and as might be expected much of it is fairly recent and gets a lot of this kind of skinny equals long life feedback that isn't strongly supported by clinical data.

46493168•1h ago
Then why the fuck hasn't the US just added it to Medicare / Medicaid coverage? It makes no sense. These healthcare schemes are costly, and covering this medication would make it... less costly.
ls612•1h ago
Everyone wants to shit on this news but I think it’s amazing. You can’t go back and change the past but if you’re doing better than you’ve ever done before there’s reason to celebrate even if it would have been nicer if it happened in 2016.
tjwebbnorfolk•1h ago
Trump is in office therefore no one is allowed to be happy about anything good happening in the US.

You're only allowed to say "yea but it'd be way better if..."

throwaway290•59m ago
Life expectancy stats change over a long time, the cause can be half a century ago
russellbeattie•1h ago
I don't think this is necessarily a good thing. The world would be a demonstrably better place if the average life expectancy had remained around 70, like it was the year I was born.

Every new generation deals with growing populations to one degree or a other. World population has doubled in my lifetime for example. But human society just isn't made to have so many long lived people hoarding wealth and power decades beyond what they historically have.

GenX finally outnumbers the Boomers, but that should have happened a decade ago. The damage they've inflicted on the younger generations is really incalculable.

I think as time goes by, we may have to decide that people over a certain age are to be legally treated the same as those under 18.

andrekandre•1h ago

  > The world would be a demonstrably better place if the average life expectancy had remained around 70, like it was the year I was born.
idk, the world was a totally messed-up place long before that...

  > The damage they've inflicted on the younger generations is really incalculable.
if you think that is bad, just wait until they solve aging itself...

imagine if we had to argue with 400 year old generals from colonial times.... or robber-barrons of 150+ years ago still trying to dominate everything.

president_zippy•1h ago
"One death is a tragedy, a million is a statistic."

I suppose rooting for people to die doesn't sound barbarous, so long as you're not rooting for anyone in particular to die.

Fire-Dragon-DoL•1h ago
That 5 years difference between men and women keeps being biologically weird
lotsofpulp•1h ago
Why? They have vastly different biologies.
lostlogin•1h ago
That’s not the only reason. Men are treated differently to women in healthcare.

There is no shortage of data on this. Here is one example: https://www.healthdata.org/news-events/newsroom/news-release...

istjohn•53m ago
Your source doesn't support your claim.
Fire-Dragon-DoL•42m ago
I'm ignorant on the matter, but "vastly" seems a bit too much, given that a good chunk of medicine applies to both. They are different, no doubt, but not the difference between a human and a crab.

5 years life expectancy difference is a lot. As a man, it is frustrating and I want to make sure I get the most out of my life (which I enjoy)

brandonb•1h ago
Part of the gap is that men develop heart disease 7 years earlier: https://www.empirical.health/blog/men-vs-women-heart-disease...
dietr1ch•1h ago
We are different, you might want to check how hearing decline is also dramatically different
skybrian•1h ago
Yeah, that seems curious. But nowadays, you can just ask. So I asked ChatGPT and it listed a wide variety of factors.

> Researchers generally group explanations into (1) cause-of-death differences, (2) exposure/behavior differences, (3) healthcare-use differences, and (4) biological differences.

https://chatgpt.com/share/697ec925-3ab0-8000-9a09-d47d2fb33d...

vharuck•1h ago
Men do riskier shit when young. They are also less likely to have a primary care physician.
rayiner•1h ago
Comparing these statistics across countries is not useful without demographic adjustment. For example, Hispanics in the U.S. have a higher life expectancy than white people in the UK: https://www.reddit.com/r/europe/comments/13te521/life_expect....
mmooss•1h ago
> Comparing these statistics across countries is useless without demographic adjustment.

Why is it useless? Any aggregate number can be broken down different ways into different groupings - region, age, education, income, wealth, smoking/not, weight, smartphone use, exercise, sleep, etc etc. By your argument, any aggregate number is useless because, no matter what the researcher chooses, it could be broken down differently.

So why choose race? I think the fact that so many in this discussion repeat the partisan trope - long used to oppose taxpayer-funded services such as healthcare, education, housing, food, etc. - of dividing people by race, is very telling.

pinkmuffinere•1h ago
> “There are still critical problems in the U.S. public health profile. It should not be big news when the life expectancy rises, which happens every year in every other developed country,” Cohen says

Wow, that’s a really biting criticism of US public health — and rightly so