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I failed to recreate the 1996 Space Jam Website with Claude

https://j0nah.com/i-failed-to-recreate-the-1996-space-jam-website-with-claude/
229•thecr0w•6h ago•193 comments

The C++ standard for the F-35 Fighter Jet [video]

https://www.youtube.com/watch?v=Gv4sDL9Ljww
149•AareyBaba•5h ago•141 comments

Evidence from the One Laptop per Child Program in Rural Peru

https://www.nber.org/papers/w34495
52•danso•3h ago•19 comments

Mechanical power generation using Earth's ambient radiation

https://www.science.org/doi/10.1126/sciadv.adw6833
10•defrost•1h ago•4 comments

Google Titans architecture, helping AI have long-term memory

https://research.google/blog/titans-miras-helping-ai-have-long-term-memory/
344•Alifatisk•11h ago•109 comments

Dollar-stores overcharge cash-strapped customers while promising low prices

https://www.theguardian.com/us-news/2025/dec/03/customers-pay-more-rising-dollar-store-costs
185•bookofjoe•8h ago•263 comments

An Interactive Guide to the Fourier Transform

https://betterexplained.com/articles/an-interactive-guide-to-the-fourier-transform/
116•pykello•5d ago•14 comments

A two-person method to simulate die rolls

https://blog.42yeah.is/algorithm/2023/08/05/two-person-die.html
36•Fraterkes•2d ago•19 comments

XKeyscore

https://en.wikipedia.org/wiki/XKeyscore
75•belter•2h ago•57 comments

Build a DIY magnetometer with a couple of seasoning bottles

https://spectrum.ieee.org/listen-to-protons-diy-magnetometer
53•nullbyte808•1w ago•13 comments

Bag of words, have mercy on us

https://www.experimental-history.com/p/bag-of-words-have-mercy-on-us
4•ntnbr•57m ago•1 comments

The Anatomy of a macOS App

https://eclecticlight.co/2025/12/04/the-anatomy-of-a-macos-app/
168•elashri•10h ago•41 comments

The state of Schleswig-Holstein is consistently relying on open source

https://www.heise.de/en/news/Goodbye-Microsoft-Schleswig-Holstein-relies-on-Open-Source-and-saves...
494•doener•10h ago•234 comments

Scala 3 slowed us down?

https://kmaliszewski9.github.io/scala/2025/12/07/scala3-slowdown.html
154•kmaliszewski•8h ago•87 comments

Java Hello World, LLVM Edition

https://www.javaadvent.com/2025/12/java-hello-world-llvm-edition.html
159•ingve•11h ago•54 comments

Proxmox delivers its software-defined datacenter contender and VMware escape

https://www.theregister.com/2025/12/05/proxmox_datacenter_manager_1_stable/
28•Bender•2h ago•1 comments

Nested Learning: A new ML paradigm for continual learning

https://research.google/blog/introducing-nested-learning-a-new-ml-paradigm-for-continual-learning/
55•themgt•8h ago•2 comments

Estimates are difficult for developers and product owners

https://thorsell.io/2025/12/07/estimates.html
128•todsacerdoti•4h ago•148 comments

Minimum Viable Arduino Project: Aeropress Timer

https://netninja.com/2025/12/01/minimum-viable-arduino-project-aeropress-timer/
3•surprisetalk•5d ago•0 comments

iced 0.14 has been released (Rust GUI library)

https://github.com/iced-rs/iced/releases/tag/0.14.0
40•airstrike•2h ago•21 comments

Semantic Compression (2014)

https://caseymuratori.com/blog_0015
46•tosh•6h ago•5 comments

Over fifty new hallucinations in ICLR 2026 submissions

https://gptzero.me/news/iclr-2026/
434•puttycat•10h ago•338 comments

Syncthing-Android have had a change of owner/maintainer

https://github.com/researchxxl/syncthing-android/issues/16
100•embedding-shape•3h ago•23 comments

Z2 – Lithographically fabricated IC in a garage fab

https://sam.zeloof.xyz/second-ic/
327•embedding-shape•20h ago•73 comments

Context Plumbing (Interconnected)

https://interconnected.org/home/2025/11/28/plumbing
5•gmays•5d ago•0 comments

Building a Toast Component

https://emilkowal.ski/ui/building-a-toast-component
77•FragrantRiver•4d ago•28 comments

The programmers who live in Flatland

https://blog.redplanetlabs.com/2025/11/24/the-programmers-who-live-in-flatland/
69•winkywooster•1w ago•86 comments

The past was not that cute

https://juliawise.net/the-past-was-not-that-cute/
388•mhb•1d ago•476 comments

Screenshots from developers: 2002 vs. 2015 (2015)

https://anders.unix.se/2015/12/10/screenshots-from-developers--2002-vs.-2015/
435•turrini•1d ago•215 comments

How the Disappearance of Flight 19 Fueled the Legend of the Bermuda Triangle

https://www.smithsonianmag.com/history/how-the-disappearance-of-flight-19-a-navy-squadron-lost-in...
45•pseudolus•11h ago•12 comments
Open in hackernews

Vanity Activities

https://quarter--mile.com/vanity-activities
54•surprisetalk•6d ago

Comments

boberoni•4h ago
I too have hobbies.
sebastiennight•4h ago
On a related note: I've run businesses for close to 20 years, most of those spent selling to other businesses, and I still fail to understand what the entirety of LinkedIn is for and if there is any of it that wouldn't fall under the author's definition of "Vanity activities".

If anyone has a clue, please enlighten me.

titanomachy•4h ago
Definitely all the posting and activity on there seems very strange and is not something I’m remotely interested in participating in. But recruiters have often found me through LinkedIn and connected me with jobs, so it’s still useful overall and I keep my profile up to date.
mooreds•3h ago
I have a friend who calls LinkedIn "a rolodex that other people keep up to date".

There is some value in posting on LinkedIn, but the real value is that you can go back and find people who are weak connections when you are looking to hire, purchase services, or ask favors.

I think everyone should join LinkedIn and connect to every one of their colleagues that they would work with again. Then, once in a while, keep that connection alive by sending a message or commenting on a post.

It's a long game, but will pay dividends should you ever need to chat with them.

balamatom•2h ago
>what the entirety of LinkedIn is for

Signalling allegiance.

mooreds•4h ago
Some good points in here, but with respect to networking, the author misses the forest for the trees.

Sure, when you go to networking events, you aren't certain you are going to get a job from the folks you meet.

What you are doing is increasing your luck surface area. Hiring is not an entirely rational process, but if someone doesn't know you exist, they won't hire you (how could they?).

From there, it follows that meeting someone and letting them know you exist increases the chances (however small) that they can and will assist you on your career path. And a networking opportunity, where you meet someone face to face (and can meet them repeatedly) is a far better way to let someone know you exist than sending them your resume.

There are other ways to raise your profile that don't involve networking events and you can argue that they are better, but that's a cost-benefit analysis you should consider.

wavemode•3h ago
"Networking", in the abstract, can be good for finding a job. As they say, it's who you know not what you know.

That being said, industry networking events, like conferences and such, are almost not at all useful for that purpose. In my experience they're mostly used for B2B sales (which is a kind of networking, I guess).

toast0•3h ago
I feel like networking at events is valuable, but networking events are less so with some exceptions. You ideally want to bump into someone with a high value network, but most of the people going to networking events are going to the events because they don't have a high value network.

An exception would be mixers for interns and juniors; few people have a developed network at that point, so even those with a couple good contacts are interested in expanding, and there's a lot of potential.

asa400•2h ago
> Hiring is not an entirely rational process

Agreed! I'd go so far as to say hiring is irrational in the aggregate.

The usual "rational" artifacts, if we can call them that (coding challenges, resumés, etc.) serve almost exclusively to eliminate candidates rather than boost good candidates. Firms are generally ok with false negatives from these artifacts as simply the cost of doing business.

> From there, it follows that meeting someone and letting them know you exist increases the chances (however small) that they can and will assist you on your career path.

I've seen this described as "people hire who they vibe with", and I've yet to see it play otherwise in my career. I'm not saying this is good, or fair, or desirable. It just is.

The folks who get offers are the ones who can meet people, tell stories (even true ones!), listen, and demonstrate that they can empathize with and contribute to messy, flawed organizations.

Humans have yet to invent a technology more powerful than social relationships, and I think technologists downplay this at their own peril.

manmal•38m ago
Why not just cold-message people from a potential employer when you’re applying there? Works way better than it should, and is more targeted than talking to people 99% of who you‘ll never see again, at an event.
mooreds•30m ago
What is your go-to text for such a cold message? I haven't seen that work but am always interested in new techniques.
titanomachy•4h ago
I have this debate with people about news and podcasts sometimes (news was one of the examples in TFA). People say they are doing it to remain informed, and it’s a high-value activity, but I argue it’s mostly entertainment since it rarely affects any decision-making.

This is not a hardline position, but I’m surprised at how vehemently people insist that their news habit has benefits beyond entertainment.

(To be clear, I have nothing against entertainment.)

mystifyingpoi•3h ago
I agree, but also the context matters. Reading news about sports is basically always entertainment, with an exception of maybe betting, to make better bets. Reading news about housing market can get me in a better position to buy my next home for cheaper, or strenghten my negotiation position.
DontchaKnowit•4h ago
This article digs on atomic habits... honestly that book changed my life. Stopped doing drugs, started eating healthy, started working out. Direct result of that book along with some philosophical reading.
arn3n•4h ago
Are we really shaming having hobbies now?
foolserrandboy•3h ago
No, the author actually says: Acknowledge that they are hobbies.
grim_io•3h ago
What does that even mean?

Why does the author care that much anyway? Seems like a person I would not enjoy talking with.

krashidov•2h ago
yeah this was a weird article and largely a waste of my time
danilafe•4h ago
It doesn't have to be one or the other. Both ethical consumption and going vegetarian reduce one's environmental impact, and they're independent of one another. So, while someone "truly" optimizing for environmental impact would better spend their time avoiding meat, someone who enjoys meat can still reduce their environmental impact without becoming miserable. Variables like "income" and "environment" are just parts of the equation for the more important heuristic of happiness.

A lot of the activities on that list are like this. Reading the news has a non-zero impact (hey, I'm on HN, and it definitely helps me keep up to date), and it's "easy" in that it fits into my heuristic for happiness. Same with using a metal straw, and same with picking between credit cards.

In a sense, these activities are "free" in terms of their perceived difficulty, but have a positive, if small, impact. If they're "free", why not do them?

ErroneousBosh•54m ago
> going vegetarian reduce one's environmental impact

Mmm, yes and no.

It depends where your meat comes from. If you buy meat the way it's produced in the US where you have great big sheds full of cattle in the desert with everything trucked in, then yes.

If you want permaculture, you absolutely must have livestock.

If you want arable farming of any sort, you absolutely must have livestock.

The whole thing breaks down very quickly if you don't have grass and clovers growing in fields, and ruminants eating them, breaking down the tough cellulose, and then shitting it out and trampling it in.

manmal•36m ago
Won’t that work better without killing & eating them young?
iNic•5m ago
The amount of cattle required to maintain pasture is way fewer than we have right now. From a CO2 perspective factory farmed cattle tends to look a little better than "free-range" mostly due to reduced land use changes (but it is obviously worse from a cruelty perspective). Finally, we can still have farm animals without eating them!!
satisfice•4h ago
To call reading the news “vanity” exposes the true vanity of this kind of post. What is the logic of assigning the word “vanity” to my interest to know what’s going on in the world? It’s vanity because I have no important decisions to make about the war in Ukraine, or the perfidy of my government?

It’s not vanity, it’s a desire to understand my world and my place within it.

What IS vanity is imagining that one’s own tastes are the only tastes that matter in the world.

card_zero•3h ago
The given definition of vain is "if they don’t lead to something more important (e.g. profit)". I don't directly profit from reading the news, it's true. I'd have to make quite hand-wavy arguments about why it's beneficial. We can also list activities such as friendship, dreams, appreciating beauty, and feeling excited as non-profitable. Then there's having aspirations: what do we gain from that? Without goals, we could save a great deal of time and effort. Striving for profit, then, is a vain and non-profitable activity because of the unnecessariness of everything.
satisfice•2h ago
I like your comment.

I'm confused by how differently some otherwise smart people view the world than I do. My wife and family, by some definitions, are worthless. They have no economic value. But I look at them and feel that we lead lives of meaning and purpose every day. We know why we are alive and we are living up to it. If that's unproductive, then productivity itself is, I declare, vanity.

brokensegue•2h ago
yeah that's just a bad definition. nobody would describe painting for fun as "vanity". vanity metrics make sense because in business the goal is to make money. in life that is not the goal.
cachius•1h ago
More like a desire for dopamine.
throwforfeds•29m ago
Yeah, I think "vanity" is not totally the right term here, but I do think they have a point that there are diminishing returns with staying up on the news cycle.

For instance, I think there is a difference between reading some news daily and consuming only news. My father was in the latter category growing up -- I never really saw him read a book, but he was always reading a paper or listening to/watching a news program. Personally I find that I get more from reading books as they're afforded the space to go into depth on a topic. I think the author is trying to point out that that surface level news consumption is fine but probably not as beneficial as we might want to tell ourselves.

The one thing I've found most helpful news-wise, though, is that I find that it's one of the better ways to learn a foreign language to an upper-intermediate or advanced level. I relied heavily on RFI and other news outlets when learning French, with the added benefit that you're often getting international news the media doesn't report on here in the US.

fastball•4m ago
[delayed]
jerkstate•4h ago
surprisingly not listed: writing blog posts
cachius•2h ago
Or comments on blog post aggregators
fastball•9m ago
The thing about writing is that there are dozens of reasons to do it, "it's fun" being one of them.
bogrollben•3h ago
I enjoyed the article. Many comments here on HN seem to be missing the point.

The author isn't bashing on "hobbies" and is not even bashing on "vanity activities". S/he is merely challenging us to acknowledge them for what they are. Stop kidding yourself.

If you churn credit cards (for example) and are one of the 10% that can make it truly profitable, then good for you. The other 90% are probably kidding themselves. Same for the other examples. The author is encouraging a self-sanity check. Are you in the 10% or the 90%, and wherever you land, are you okay with that? If not, you may want to reevaluate, pick something else, or make peace with it. It's better than kidding yourself.

toast0•3h ago
IMHO, churning is clearly profitable if you pay off your card every month, will hit the spend requirements organically and are organized enough to cancel to avoid annual fees in the second year. Some people dive into manufactured spending to hit the required spending, but then you really need to consider the time invested.

The question is more about if the rewards are meaningful. I think it's actually worth doing a bit of churning to get exposure to different banks and figure out which one you like... might as well get paid for that. But after a certain point, I value stability and routine more than $300 to jump through hoops... and I'm not going back to Chase no matter what they want to pay me.

ErroneousBosh•53m ago
I feel like it's hobbies with an element of virtue-signalling.
sota_pop•3h ago
Interesting thought. However, the author starts with “In business…”, then immediately goes on to shoehorn the idea to people. The logic tracks if your underlying assumption is that the core purpose of a human life is to “be productive” (sic generate profit).
mjd•3h ago
“The number of pageviews on your website and the number of likes on your tweets are fun to look at and sound impressive, but optimizing for them completely misses the point if they don’t lead to something more important (e.g. profit).”

Profit is fun to look at and sounds impressive, but optimizing for it completely misses the point if it doesn't lead to something more important (e.g. human flourishing, or net societal gain)

carlosjobim•1h ago
Profit is useful. Views, likes and comments have zero value. That's why e-celebs with millions and millions of "followers" can't sell more than a dozen coffee mugs when they try to make money from it.
JoshTriplett•2h ago
There's something horribly broken about the styling on this site. Attempting to scale the page (Ctrl-+) doesn't change the font size. I have no idea how the page managed that, but whatever mechanism allowed that, browsers should kill it with fire.
msm_•50m ago
This page - a bit of barely styled text on a plain background - also doesn't work without JS at all. Even though this is not a SPA, the essay text is just there in HTML response. I know I'm yelling at the clouds here, but I find this slightly annoying (why do I need to run code to read this?).
captainclam•2h ago
Author really should have figured out a better word than "vanity."
TOMDM•1h ago
Feels like a pretty tidy parallel to luxury beliefs. Luxury activities would fit, especially since some of these are the activity equivalent to the belief.
carlosjobim•1h ago
Why?
quinndupont•13m ago
Vanity is contextual. Everything is vanity from some ultimate perspective.