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Amateur armed with ChatGPT solves an Erdős problem

https://www.scientificamerican.com/article/amateur-armed-with-chatgpt-vibe-maths-a-60-year-old-pr...
212•pr337h4m•11h ago•135 comments

Why has there been so little progress on Alzheimer's disease?

https://freakonomics.com/podcast/why-has-there-been-so-little-progress-on-alzheimers-disease/
152•chiefalchemist•5h ago•70 comments

USB Cheat Sheet (2022)

https://fabiensanglard.net/usbcheat/index.html
221•gwerbret•7h ago•49 comments

Tell HN: An app is silently installing itself on my iPhone every day

100•_-x-_•4h ago•60 comments

Mahjong: A Visual Guide

https://themahjong.guide/
29•iamwil•2d ago•6 comments

Flickr: The first and last great photo platform

https://petapixel.com/2026/04/22/flickr-the-first-and-last-great-photo-platform/
101•Nrbelex•3d ago•55 comments

EU Age Control: The trojan horse for digital IDs

https://juraj.bednar.io/en/blog-en/2026/04/17/eu-age-control-the-trojan-horse-for-digital-ids/
42•gasull•1h ago•8 comments

OpenAI Privacy Filter

https://openai.com/index/introducing-openai-privacy-filter/
159•tanelpoder•3d ago•28 comments

The Free Universal Construction Kit

https://fffff.at/free-universal-construction-kit/
298•robinhouston•3d ago•61 comments

My Homemade PBX (2002)

https://wandel.ca/homepage/pbx.html
9•rickcarlino•1h ago•0 comments

1-Bit Hokusai's "The Great Wave" (2023)

https://www.hypertalking.com/2023/05/08/1-bit-pixel-art-of-hokusais-the-great-wave-off-kanagawa/
544•stephen-hill•3d ago•88 comments

Using coding assistance tools to revive projects you never were going to finish

https://blog.matthewbrunelle.com/its-ok-to-use-coding-assistance-tools-to-revive-the-projects-you...
241•speckx•13h ago•131 comments

The Joy of Folding Bikes

https://blog.korny.info/2026/04/19/the-joy-of-folding-bikes
131•pavel_lishin•3d ago•76 comments

America's Geothermal Breakthrough

https://oilprice.com/Alternative-Energy/Geothermal-Energy/Americas-Geothermal-Breakthrough-Could-...
99•sleepyguy•9h ago•107 comments

DeepSeek-V4 on Day 0: From Fast Inference to Verified RL with SGLang and Miles

https://www.lmsys.org/blog/2026-04-25-deepseek-v4/
27•mji•5h ago•2 comments

Math Is Hard – OpenBSD Stories

http://miod.online.fr/software/openbsd/stories/vaxfp.html
72•signa11•2d ago•1 comments

The Super Nintendo Cartridges

https://fabiensanglard.net/snes_carts/
25•offbyone42•4h ago•1 comments

New 10 GbE USB adapters are cooler, smaller, cheaper

https://www.jeffgeerling.com/blog/2026/new-10-gbe-usb-adapters-cooler-smaller-cheaper/
563•calcifer•23h ago•337 comments

Optimizing Datalog for the GPU

https://dl.acm.org/doi/10.1145/3669940.3707274
34•tosh•2d ago•3 comments

Per-image PCA characterization of the Kodak image suite (PDF and JSON)

https://github.com/PearsonZero/kodak-pcd0992-statistical-characterization/tree/main/baseline
3•PearsonZero•4d ago•0 comments

Reviving BrowserID in 2026

https://wakamoleguy.com/p/reviving-browserid-in-2026
10•wakamoleguy•2h ago•2 comments

Hokusai and Tesselations

https://dl.ndl.go.jp/pid/1899550/1/11/
94•srean•12h ago•14 comments

The Long Reply

https://ironicsans.ghost.io/the-long-reply/
28•NaOH•2d ago•0 comments

Simulacrum of Knowledge Work

https://blog.happyfellow.dev/simulacrum-of-knowledge-work/
125•thehappyfellow•12h ago•46 comments

The George Business, by Roger Zelazny (1980)

https://www.eternal-flame.org/library/oldlibrary/georgebusiness.html
18•xeonmc•2d ago•0 comments

GnuPG – post-quantum crypto landing in mainline

https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000504.html
6•zdkaster•2h ago•1 comments

Shall We Play a Game?

https://asteriskmag.com/issues/14/shall-we-play-a-game
4•jger15•2d ago•0 comments

Mine, an IDE for Coalton and Common Lisp

https://coalton-lang.github.io/mine/
87•varjag•11h ago•38 comments

What the FCC router ban means for FOSS

https://sfconservancy.org/blog/2026/apr/02/fcc-router-ban/
14•pabs3•1h ago•4 comments

What async promised and what it delivered

https://causality.blog/essays/what-async-promised/
183•zdw•3d ago•208 comments
Open in hackernews

Does internet advertising work? (2020)

https://freakonomics.com/podcast/does-advertising-actually-work-part-2-digital-ep-441/
16•hackthemack•3h ago

Comments

dotcoma•3h ago
It works very well for the HUGE players who sell it, Google, Meta, Amazon and not many more.

It can help a small advertiser get a small number of customers to try out their offering.

It does not and will not create brands. If you disagree, please tell me about brands created by “Internet advertising” in the current century.

hackthemack•3h ago
That is sort of the inferred conclusion of the podcast, it is a bit of a racket by the big players.
dotcoma•3h ago
I wrote a very short ebook on the subject some 10 years ago, 15 Questions About Online Advertising.

It should be available for free on Apple Books, Google Books, Kobo etc, or for 0.99 on Amazon.

compounding_it•1h ago
The goal of advertising is to hammer you with the same content again and again until your brain associates something with the product. Like shampoo associated with what you see everyday in the advertisement.

However in order to do this, whether you are selling or buying, you have to have the scale. And the scale of big players is now too big to compete.

And even if you do, your infrastructure will run on any of these big companies who can do anything to your traffic to keep their business and later pay fines for unethical practices that are minor compared to the profits.

satvikpendem•1h ago
Gymshark, Warby Parker, Casper, Liquid Death, Olipop.

Many 21st century consumer brands have been built by internet advertising. Seems like you do, based on your comment about your book, but in general I feel like many people who say stuff like the comment above don't actually work in marketing or startups, particularly non-tech physical goods based ones, or have even run their own ads on these platforms.

cwnyth•1h ago
I've never seen an internet ad for any of these. I saw a physical ad for Casper once.

I think it's safe to ask for a citation for this claim.

satvikpendem•1h ago
It is trivial to find them online, just search the company name and then "ads". I assume you don't go on TikTok or Instagram or if you do you aren't part of the target market to be served these ads.

https://www.facebook.com/ads/library/?active_status=all&ad_t...

https://adlibrary.com/brands/gymshark

marcosdumay•1h ago
Ground News?

Anyway, Google, Meta and Amazon don't sell the king of ads that make brands. But there exist branding ads on the internet.

zetanor•1h ago
Advertising isn't just B2C, it's also B2B. The companies that make everything you buy (from the food you eat to the electrical wires you install in your walls) needs raw materials and machinery to produce anything. While there's trade shows and good ol' fashioned handshakes and whatnot, one of the main ways to sell B2B is just camp the top Google result spots by giving Google a lot of money to be the first result for the names of business inputs (or the names of your competitors, if you want to be cheeky).

When you hire a non-technical purchaser, when production line 13's full-body discombobulator breaks and the maintenance guy says "we need a new full-body discombobulator", the purchaser has no idea what a "full-body discombobulator" is or who makes it but they'll Google "full-body discombobulator" and they'll click [Buy Now] on whatever link shows up so that production line 13 can continue printing half a million bucks an hour.

kimjune01•1h ago
internet ads are largely a story of parasitic exchanges using information asymmetry to suck as much surplus out of the middle as possible.

https://june.kim/advertising-journey/

satvikpendem•1h ago
If you know what you're doing and have lots of money to spend, you can get great returns on online advertising, especially because the platforms know how to target very specific niches of customers. But, most people don't know what they're doing and end up wasting their limited budget then conclude it doesn't work for them.

Many consumer brands as I mentioned elsewhere were built off online advertising to billions of dollars in revenues and valuations.

tikotus•1h ago
My wife and I have a small life style business, selling a physical product. We make a nice daily profit using Meta ads. X dollars go in, X*A dollars come out, A > 1.0. When not running ads, it's just tumbleweeds.

I also have a digital daily browser puzzle. I've grown the user base quite a bit by running one simple ad on Reddit with amazingly good metrics.

In the past I worked for F2P mobile game companies. Their business is based on running successful internet ad campaigns.

paulhebert•34m ago
Could you share more about the reddit ad you run? I also have a daily browser puzzle. I haven't done any paid ads but have considered it.

Could you share what you spend vs the players you attract? Any tips or tricks?

EDIT: Oh wow, you make Clues by Sam! It's a great puzzle and one I regularly see people gushing about. Great job!

tikotus•9m ago
Thanks!

My ad is just one image and some clickbaity headline. The image is very simple, high contrast, designed to pop out. I'm targeting all kinds of puzzle subreddits. I'm getting just about $0.15 cost per click in US. The budget is quite small, but this helps reaching out to new audiences who spread the game further to their friends. The majority of the growth is still organic, but ads do help. I'm still not sure if it's a net positive though, since I don't have strong monetization in the game, and don't do any fingerprinting of users, or much analytics at all.

y-curious•31m ago
I would love to hear your process for picking a successful ad campaign. I tried doing meta ads for my mom’s business and it didn’t really go anywhere
tikotus•19m ago
The best ad we've had was made by an influencer we hired to do an ad. She knew how to grab the attention of our target audience, and speak to them.

But in general we just slap all kinds of videos there. Some perform 2x better than others, impossible to guess whuch ones, but in the end the range of success isn't massive. I haven't marketed many different kinds of products, but here's my take: If an ad is giving something like 20% return on ad spend, getting to 100% can be tough by just improving the ad. What matters more is that it's a product that is easy to sell. We sell escape game murder mystery magazines. Murder mysteries in any form are simply very easy to sell.

zugi•55m ago
I started listening to the podcast, but first they made me listen to several ads.

One was for a company that survives by selling ads - basically this was an ad selling ads! Given the title of the podcast, I assumed this was some sort of meta-joke, but evidently not.

So the sponsors of this podcast apparently believe that internet advertising works.

y-curious•32m ago
I hadn’t considered the irony of an ad-supported podcast questioning their own livelihood, good catch
MangoCoffee•27m ago
Why internet advertising won't work? Google and Meta got big based on selling ad online and they have been doing it for 10+ years.