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Heart attacks may be triggered by bacteria

https://www.tuni.fi/en/news/myocardial-infarction-may-be-infectious-disease
41•DaveZale•1h ago•14 comments

Show HN: A store that generates products from anything you type in search

https://anycrap.shop/
677•kafked•11h ago•233 comments

RIP pthread_cancel

https://eissing.org/icing/posts/rip_pthread_cancel/
132•robin_reala•5h ago•57 comments

The Case Against Social Media Is Stronger Than You Think

https://arachnemag.substack.com/p/the-case-against-social-media-is
67•ingve•4h ago•46 comments

AI Will Not Make You Rich

https://joincolossus.com/article/ai-will-not-make-you-rich/
8•saucymew•1h ago•3 comments

486Tang – 486 on a credit-card-sized FPGA board

https://nand2mario.github.io/posts/2025/486tang_486_on_a_credit_card_size_fpga_board/
131•bitbrewer•8h ago•35 comments

‘Someone must know this guy’: four-year wedding crasher mystery solved

https://www.theguardian.com/uk-news/2025/sep/12/wedding-crasher-mystery-solved-four-years-bride-s...
198•wallflower•8h ago•63 comments

How Ruby executes JIT code

https://railsatscale.com/2025-09-08-how-ruby-executes-jit-code-the-hidden-mechanics-behind-the-ma...
69•ciconia•4d ago•5 comments

My first impressions of gleam

https://mtlynch.io/notes/gleam-first-impressions/
152•AlexeyBrin•9h ago•54 comments

An open-source maintainer's guide to saying “no”

https://www.jlowin.dev/blog/oss-maintainers-guide-to-saying-no
125•jlowin•3h ago•48 comments

Mago: A fast PHP toolchain written in Rust

https://github.com/carthage-software/mago
130•AbuAssar•8h ago•54 comments

Orange rivers signal toxic shift in Arctic wilderness

https://news.ucr.edu/articles/2025/09/08/orange-rivers-signal-toxic-shift-arctic-wilderness
14•hbcondo714•2d ago•1 comments

Lessons in disabling RC4 in Active Directory (2021)

https://syfuhs.net/lessons-in-disabling-rc4-in-active-directory
14•speckx•2d ago•4 comments

Show HN: CLAVIER-36 – A programming environment for generative music

https://clavier36.com/p/LtZDdcRP3haTWHErgvdM
91•river_dillon•8h ago•18 comments

Magical systems thinking

https://worksinprogress.co/issue/magical-systems-thinking/
235•epb_hn•6h ago•71 comments

SkiftOS: A hobby OS built from scratch using C/C++ for ARM, x86, and RISC-V

https://skiftos.org
410•ksec•18h ago•83 comments

Open Source SDR Ham Transceiver Prototype

https://m17project.org/2025/08/18/first-linht-tests/
68•crcastle•3d ago•8 comments

UTF-8 is a brilliant design

https://iamvishnu.com/posts/utf8-is-brilliant-design
770•vishnuharidas•1d ago•305 comments

Safe C++ proposal is not being continued

https://sibellavia.lol/posts/2025/09/safe-c-proposal-is-not-being-continued/
70•charles_irl•4h ago•46 comments

Japan sets record of nearly 100k people aged over 100

https://www.bbc.com/news/articles/cd07nljlyv0o
270•bookofjoe•9h ago•166 comments

Java 25's new CPU-Time Profiler

https://mostlynerdless.de/blog/2025/06/11/java-25s-new-cpu-time-profiler-1/
151•SerCe•14h ago•82 comments

How to Use Claude Code Subagents to Parallelize Development

https://zachwills.net/how-to-use-claude-code-subagents-to-parallelize-development/
226•zachwills•4d ago•100 comments

Energy-Based Transformers [video]

https://www.youtube.com/watch?v=LUQkWzjv2RM
28•surprisetalk•4d ago•2 comments

Many hard LeetCode problems are easy constraint problems

https://buttondown.com/hillelwayne/archive/many-hard-leetcode-problems-are-easy-constraint/
624•mpweiher•1d ago•498 comments

Legal win

https://ma.tt/2025/09/legal-win/
231•pentagrama•21h ago•196 comments

Weird CPU architectures, the MOV only CPU (2020)

https://justanotherelectronicsblog.com/?p=771
99•v9v•4d ago•29 comments

Show HN: Vicinae – A native, Raycast-compatible launcher for Linux

https://github.com/vicinaehq/vicinae
129•aurellius•4d ago•29 comments

The value of bringing a telephoto lens

https://avidandrew.com/telephoto.html
99•freediver•4d ago•101 comments

Perceived Age (2024)

https://sdan.io/blog/perceived-age
59•jxmorris12•4d ago•46 comments

Wimpy vs. McDonald's: The Battle of the Burgers

https://www.historytoday.com/archive/history-matters/wimpy-vs-mcdonalds-battle-burgers
12•lermontov•1d ago•10 comments
Open in hackernews

The Case Against Social Media Is Stronger Than You Think

https://arachnemag.substack.com/p/the-case-against-social-media-is
67•ingve•4h ago

Comments

_wire_•3h ago
These question-begging, click-bait something-is-something-other-than-you-think posts are something less entertaining than the poster thinks.
abnercoimbre•1h ago
Yup. Soon as I read:

> I am going to focus on the putative political impacts of social media

I closed the tab.

IshKebab•1h ago
Yeah I closed it when I saw the size of the scroll bar. If you need 100k words to make your point write a book.
stevage•14m ago
Huh, I often have the reverse sentiment with a lot of books: this should have been a blog post. There's often a good intro which lays out the thesis, but each chapter is way too long, spelling out details that are obvious or superfluous.
alexfromapex•2h ago
My main case against at this point is that everything you post will be accessible by "bad" AI
isodev•1h ago
I think to be clear that’s “The case against algorithmic*” social media”, the kind that uses engagement as a core driver.
johnea•1h ago
Man, blah, blah, blah...

That article needs to have about 80% of the words cut out of it.

When the author straight up tells you: I'm posting this in an attempt to increase my subscribership, you know you're in for some blathering.

In spite of that, personally I think algorithmic feeds have had a terrible effect on many people.

I've never participated, and never will...

scarface_74•1h ago
I really hate the narrative that social media has increased polarization knowing that my still living parents grew up in the Jim Crow south where they were literally separated from society because of the color of their skin.

The country has always been hostile to “other”. People just have a larger platform to get their message out.

jwilber•1h ago
The article mentions this. It tries to argue the significance of that platform.
tolerance•1h ago
> The country has always been hostile to “other”. People just have a larger platform to get their message out.

And a consequence of this is that some people’s perspective of the scale of the nation’s hostilities is limited to the last 5 years or so.

linguae•1h ago
As someone whose grandparents endured Jim Crow, I largely agree in the sense that social media did not create America’s divides. Many of the divides in American society are very old and are very deep, with no easy fixes.

Unfortunately algorithmic social media is one of the factors adding fuel to the fire, and I believe it’s fair to say that social media has helped increase polarization by recommending content to its viewers purely based on engagement metrics without any regard for the consequences of pushing such content. It is much easier to whip people into a frenzy this way. Additionally, echo chambers make it harder for people to be exposed to other points of view. Combine this with dismal educational outcomes for many Americans (including a lack of critical thinking skills), our two-party system that aggregates diverse political views into just two options, a first-past-the-post election system that forces people to choose “the lesser of two evils,” and growing economic pain, and these factors create conditions that are ripe for strife.

scarface_74•44m ago
So there wasn’t enough fuel in the fire when marauding Klansmen were hanging Black people?

It was the current President of the US that led a charge that a Black man running for President wasn’t a “real American” and was a secret Muslim trying to bring Shari law to the US and close to half of the US was willing to believe it.

https://www.youtube.com/watch?v=WErjPmFulQ0

This was before social media in the northern burbs of Atlanta where I had to a house built in 2016. We didn’t have a problem during the seven years we lived there. But do you think they were “polarized” by social media in the 80s?

That’s just like police brutality didn’t start with the rise of social media. Everyone just has cameras and a platform

dfxm12•16m ago
Unfortunately algorithmic social media is one of the factors adding fuel to the fire

Saying social media fans the flames is like saying ignorance is bliss. Mainstream media (cable news, radio, newspapers, etc) only gives us one, largely conservative, viewpoint. As you say, our choices are usually evil and not quite as evil.

Anger is not an unreasonable reaction when you realize this. When you realize that other viewpoints exist, the mainstream media and politicians are not acting in anyone's best interest but their own, there really are other options (politically, for news, etc.). Social media is good at bringing these things to light.

There are no easy fixes to the divides you're talking about, but failing to confront them and just giving in to the status quo, or worse, continuing down our current reactionary transcript, is probably the worst way to approach them.

nextaccountic•40m ago
One of the factors that led to the Rwandan genocide was the broadcast of the RLTM radio station

https://en.wikipedia.org/wiki/Rwandan_genocide#Radio_station...

The radio didn't create the divide, and it wasn't the sole factor in the genocide, but it engrained in the population a sense of urgency in eliminating the Tutsi, along with a stream of what was mostly fake news to show that the other side is already commiting the atrocities against Hutus

When the genocide happened, it was fast and widespread: people would start killing their own neighbors at scale. In 100 days, a million people were killed.

The trouble with social media is that they somehow managed to shield themselves from the legal repercussions of heavily promoting content similar to what RTLM broadcast. For example, see the role of Facebook and its algorithmic feed in the genocide in Myanmar

https://systemicjustice.org/article/facebook-and-genocide-ho...

It's insane that they can get away with it.

scarface_74•17m ago
And there wasn’t a history of genocide of other before then? Hitler in Germany and the mass murder in Tulsa in 1921 didn’t need social media.

History has shown people don’t need a reason to hate and commit violence against others.

Lerc•1h ago
Part of me thinks that if the case against social media was stronger, it would not be being litigated on substack.

A lot of things suck right now. Social media definitely give us the ability to see that. Using your personal ideology to link correlations is not the same thing as finding causation.

There will be undoubtedly be some damaging aspects of social media, simply because it is large and complex. It would be highly unlikely that all those factors always aligned in the direction of good.

All too often a collection of cherry picked studies are presented in books targeting the worried public. It can build a public opinion that is at odds with the data. Some people write books just to express their ideas. Others like Jonathan Haidt seem to think that putting their efforts into convincing as many people as possible of their ideology is preferable to putting effort into demonstrating that their ideas are true. There is this growing notion that perception is reality, convince enough people and it is true.

I am prepared to accept aspects of social media are bad. Clearly identify why and how and perhaps we can make progress addressing each thing. Declaring it's all bad acts as a deterrent to removing faults. I become very sceptical when many disparate threads of the same thing seem to coincidentally turn out to be bad. That suggests either there is an underlying reason that has been left unstated and unproven or the information I have been presented with is selective.

Llamamoe•1h ago
I feel like regardless of all else, the fact of algorithmic curation is going to be bad, especially when it's contaminated by corporate and/or political interests.

We have evolved to parse information as if its prevalence is controlled by how much people talk about it, how acceptable opinions are to voice, how others react to them. Algorithmic social media intrinsically destroy that. They change how information spreads, but not how we parse its spread.

It's parasocial at best, and very possibly far worse at worst.

majormajor•1h ago
It's increasingly discussed in traditional media too so let's toss out that first line glib dismissal.

More and more people declaring it's net-negative is the first step towards changing anything. Academic "let's evaluate each individual point about it on its own merits" is not how this sort of thing finds political momentum.

(Or we could argue that "social media" in the Facebook-era sense is just one part of a larger entity, "the internet," that we're singling out.)

krapp•1h ago
"net-negative" sounds like a rigidly defined mathematically derived result but it's basically just a vibe that means "I hate social media more than I like it."
sedawkgrep•14m ago
I'm struggling to understand your point, especially since the conclusion you posit is rather glib and dismissive.

Net-negative is not quantifiable. But it is definitely qualifiable.

I don't think you have to think of things in terms of "hate it more than I like it" when you have actual examples on social media of children posting self-harm and suicide, hooliganism and outright crimes posted for viewership, blatant misinformation proliferation, and the unbelievable broad and deep affect powerful entities can have on public information/opinion through SM.

I think we can agree all of these are bad, and a net-negative, without needing any mathematic rigor.

logicchains•45m ago
>It's increasingly discussed in traditional media too so let's toss out that first line glib dismissal.

Traditional media is the absolute worst possible source for anything related to social media because of the extreme conflict of interest. Decentralised media is a fundamental threat to the business model of centralised media, so of course most of the coverage of social media in traditional media will be negative.

alisonatwork•7m ago
Unfortunately most of what people understand as "social media" is not decentralized, and most of the biggest names on Substack in particular come directly out of "traditional media", which is exactly why it's not a real alternative. Substack is just another newspaper except now readers have to pay for every section they want to read.
delusional•42m ago
> More and more people declaring it's net-negative is the first step towards changing anything.

I accept that "net-negative" is a cultural shorthand, but I really wish we could go beyond it. I don't think people are suddenly looking at both sides of the equation and evaluating rationally that their social media interactions are net negative.

I think what's happening is a change in the novelty of social media. That is, the the net value is changing. Originally, social media was fun and novel, but once that novelty wears away it's flat and lifeless. It's sort of abstractly interesting to discuss tech with likeminded people on HN, but once we get past the novelty, I don't know any of you. Behind the screen-names is a sea of un-identifiable faces that I have to assume are like-minded to have any interesting discussions with, but which are most certainly not like me at all. Its endless discussions with people who don't care.

I think that's what you're seeing. A society caught up in the novelty, losing that naive enjoyment. Not a realization of met effects.

logicchains•40m ago
There's a concerted assault on social media from the powers that be because social media is essentially decentralised media, much harder for authoritarians to shape and control than centralised media. Social media is why the masses have finally risen up in opposition to what Israel's been doing in Gaza, even though the genocide has been going on for over half a century: decentralised information transmission allowed people to see the reality of what's really going on there.
solid_fuel•38m ago
There a lot of money in social media, literally hundreds of billions of dollars. I expect the case against it will continue to grow, like the case against cigarettes did.

I will say this, and this is anecdotal, but other events this week have been an excellent case study in how fast misinformation (charitably) and lies (uncharitably) spread across social media, and how much social media does to amp up the anger and tone of people. When I open Twitter, or Facebook, or Instagram, or any of the smaller networks I see people baying for blood. Quite literally. But when I talk to my friends, or look at how people are acting in the street, I don't see that. I don't see the absolute frenzy that I see online.

If social media turns up the anger that much, I don't think it's worth the cost.

Lerc•21m ago
>There a lot of money in social media, literally hundreds of billions of dollars. I expect the case against it will continue to grow, like the case against cigarettes did.

I don't think it follows that something making money must do so by being harmful. I do think strong regulation should exist to prevent businesses from introducing harmful behaviours to maximise profits, but to justify that opinion I have to believe that there is an ability to be profitable and ethical simultaneously.

>events this week have been an excellent case study in how fast misinformation (charitably) and lies (uncharitably) spread across social media

On the other hand The WSJ, Guardian, and other media outlets have published incorrect information on the same events. The primary method that people had to discover that this information was incorrect was social media. It's true that there was incorrect information and misinformation on social media, but it was also immediately challenged. That does create a source of conflict, but I don't think the solution is to accept falsehoods unchallenged.

If anything education is required to teach people to discuss opposing views without rising to anger or personal attacks.

solid_fuel•6m ago
> I don't think it follows that something making money must do so by being harmful.

My point isn't that it's automatically harmful, simply that there is a very strong incentive to protect the revenue. That makes it daunting to study these harms.

> On the other hand The WSJ, Guardian, and other media outlets have published incorrect information on the same events. The primary method that people had to discover that this information was incorrect was social media.

I agree with your point here too, and I don't think the solution is to completely stop or get rid of social media. But, the problem I see is there are tons of corners of social media where you can still see the original lies being repeated as if they are fact. In some spaces they get challenged, but in others they are echoed and repeated uncritically. That is what concerns me - long debunked rumors and lies that get repeated because they feel good.

> If anything education is required to teach people to discuss opposing views without rising to anger or personal attacks.

I think many people are actually capable of discussing opposing views without it becoming so inflammatory... in person. But algorithmic amplification online works against that and the strongest, loudest, quickest view tends to win in the attention landscape.

My concern is that social media is lowering people's ability to discuss things calmly, because instead of a discussion amongst acquaintances everything is an argument is against strangers. And that creates a dynamic where people who come to argue are not arguing against just you, but against every position they think you hold. We presort our opponents into categories based on perceived allegiance and then attack the entire image, instead of debating the actual person.

But I don't know if that can fixed behaviorally, because the challenge of social media is that the crowd is effectively infinite. The same arguments get repeated thousands of times, and there's not even a guarantee that the person you are arguing against is a real person and not just a paid employee, or a bot. That frustration builds into a froth because the debate never moves, it just repeats.

xnx•54m ago
Social media would be entirely different if there were no monetization on political content. There's a whole lot of ragebaiting/engagement-farming for views. I don't know how to filter for political content, but it's worth a shot. People are free to say whatever they want, but they don't need to get paid for it.
stevage•15m ago
Strangely I never see political content on YouTube. Maybe the algorithm worked out quickly I'm simply not interested. Whereas twitter/mastodon/bluesky are awash in it, to the point of making those platforms pretty unusable for me.

I guess the difference is that YouTube content creators don't casually drop politics in because it will alienate half their audience and lose revenue. Whereas on those other platforms the people I follow aren't doing it professionally and just share whatever they feel like sharing.

jparishy•46m ago
We, consumers online, are sliced and diced on every single dimension possible in order to optimize our clicks for another penny.

As a side benefit, when you do this enough, the pendulum that goes over the middle line for any of these arbitrary-but-improves-clicks division builds momentum until it hits the extremes. On either side-- it doesn't matter, cause it will swing back just as hard, again and again.

As a side benefit the back and forth of the pendulum is very distracting to the public so we do not pay attention to who is pushing it. Billions of collective hours spent fighting with no progress except for the wallets of rich ppl.

It almost feels like a conspiracy but I think it's just the direct, natural result of the vice driven economy we have these days

blitz_skull•38m ago
The last week has taken me from “I believe in the freedom of online anonymity” to “Online anonymity possess a weight that a moral, civil society cannot bear.”

I do not believe humans are capable of responsibly wielding the power to anonymously connect with millions of people without the real weight of social consequence.

rkomorn•32m ago
They're unfortunately not much more capable of responsibly connecting with people non-anonymously, I'd say.

See examples like finding someone's employer on LinkedIn to "out" the employee's objectionable behavior, doxxing, or to the extreme, SWATing, etc.

qarl•17m ago
Yeah. People use their real identities on Facebook, and it doesn't help a bit.
tryauuum•31m ago
what happened?
jacobedawson•14m ago
The strongest counterpoint to that is the intense chilling effect that zero anonymity would have on political dissent and discourse that doesn't match the status quo or party line. I feel that would be much more dangerous for our society than occasionally suffering the consequence of some radicalized edge cases.
slg•9m ago
In that instance, the anonymity is treating the symptom and not the root cause of the problem you fear. The actual problem is a society that does not tolerate dissent.
NoahZuniga•3m ago
You might live in an extremely free country and have no fear about political prosecution but still fear social prosecution.

If someone I was friends with made racist remarks, they wouldn't be prosecuted for that. But I would stop being their friend. Similarly if I was the only one in my friend group against racism and advocate firefly against it, they would probably stop being my friends.

Spivak•1m ago
I think we should operate on the premise that no society in the history of humanity has tolerated dissent and none ever will. So treating the symptom is all we can do. It's the basis of why privacy is necessary in any manner.
XorNot•10m ago
What a bizarre conclusion given the multiple high profile individuals and politicians who overtly and directly called for violent oppression and civil war against their political enemies on the last week.
cramsession•10m ago
Why is that? Some irony as well that you're posting anonymously. Are you comfortable giving us your identification right now?
Longlius•5m ago
Anonymity has no real impact on this. People post heinous things under their full legal names just as readily.

I'd argue if all it took was people saying some mean things anonymously to change your opinion, then your convictions weren't very strong to begin with.

api•35m ago
It's more specific than social media. It's engagement maximizing (read: addiction maximizing) algorithms. Social media wasn't nearly as bad until algorithmic engagement maximizing feeds replaced temporal or topic based feeds and user-directed search.

Two people walk past you on the street. One says "hi," and the other strips naked and smears themselves with peanut butter and starts clucking like a chicken. Which one maximizes engagement?

A politician says something sane and reasonable. Another politician mocks someone, insults someone, or says something completely asinine. Which one maximizes engagement?

This is why our president is a professional troll, many of our public intellectuals are professional trolls, and politics is becoming hyper-polarized into raging camps fixated on crazy extremes. It maximizes engagement.

The "time on site" KPI is literally destroying civilization by biasing public discourse toward trash.

I think "trash maximizes engagement" should be considered an established fact at this point. If you A/B test for engagement you will converge on a mix of trolling, tabloid sensationalism, fear porn, outrage porn, and literal porn, and that’s our public discourse.

profsummergig•35m ago
I used to be disappointed in myself that I didn't understand Discord well enough to use it.

Now I'm glad I never understood it well enough to use it.

stevage•12m ago
Huh. I'm on a few discords. They're very easy and obvious to use, and I really enjoy them. And because they are generally well divided by channel, it's easy to avoid the bits you don't want.
793212408435807•8m ago
Number 3 will shock you!

What a shame that these clickbait headlines make it to the front page.