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A Visual Introduction to Machine Learning

https://r2d3.us/visual-intro-to-machine-learning-part-1/
41•vismit2000•56m ago•2 comments

$96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor

https://github.com/novatic14/MANPADS-System-Launcher-and-Rocket
45•ZacnyLos•1h ago•12 comments

The Appalling Stupidity of Spotify's AI DJ

https://www.charlespetzold.com/blog/2026/02/The-Appalling-Stupidity-of-Spotifys-AI-DJ.html
158•ingve•3h ago•125 comments

Rack-mount hydroponics

https://sa.lj.am/rack-mount-hydroponics/
193•cdrnsf•7h ago•44 comments

Why Mathematica does not simplify sinh(arccosh(x))

https://www.johndcook.com/blog/2026/03/10/sinh-arccosh/
81•ibobev•3d ago•18 comments

Treasure hunter freed from jail after refusing to turn over shipwreck gold

https://www.bbc.com/news/articles/cg4g7kn99q3o
107•tartoran•8h ago•124 comments

A most elegant TCP hole punching algorithm

https://robertsdotpm.github.io/cryptography/tcp_hole_punching.html
105•Uptrenda•8h ago•33 comments

How kernel anti-cheats work

https://s4dbrd.github.io/posts/how-kernel-anti-cheats-work/
209•davikr•11h ago•180 comments

Examples for the tcpdump and dig man pages

https://jvns.ca/blog/2026/03/10/examples-for-the-tcpdump-and-dig-man-pages/
8•ibobev•3d ago•0 comments

Allow me to get to know you, mistakes and all

https://sebi.io/posts/2026-03-14-allow-me-to-get-to-know-you-mistakes-and-all/
169•sebi_io•13h ago•76 comments

Show HN: Han – A Korean programming language written in Rust

https://github.com/xodn348/han
179•xodn348•14h ago•97 comments

Ageless Linux – Software for humans of indeterminate age

https://agelesslinux.org/
663•nateb2022•13h ago•430 comments

SBCL Fibers – Lightweight Cooperative Threads

https://atgreen.github.io/repl-yell/posts/sbcl-fibers/
105•anonzzzies•12h ago•18 comments

Mathematics Distillation Challenge – Equational Theories

https://terrytao.wordpress.com/2026/03/13/mathematics-distillation-challenge-equational-theories/
78•picafrost•1d ago•2 comments

Centuries of selective breeding turned wild cabbage into different vegetables

https://www.worksinprogress.news/p/many-of-the-tastiest-vegetables-are
56•bensouthwood•3d ago•22 comments

Slicing Bezier Surfaces

https://fatih-erikli-potato.github.io/blog/slicing-bezier-surfaces.html
12•fatih-erikli-cg•2d ago•2 comments

Bumblebee queens breathe underwater to survive drowning

https://www.smithsonianmag.com/science-nature/bumblebee-queens-breathe-underwater-to-survive-drow...
140•1659447091•14h ago•28 comments

MCP is dead; long live MCP

https://chrlschn.dev/blog/2026/03/mcp-is-dead-long-live-mcp/
165•CharlieDigital•16h ago•146 comments

Tree Search Distillation for Language Models Using PPO

https://ayushtambde.com/blog/tree-search-distillation-for-language-models-using-ppo/
63•at2005•10h ago•4 comments

The mechanics of autonomous software translation

https://alperenkeles.com/posts/autonomous-translations/
20•alpaylan•4d ago•0 comments

A look inside Dialector, filmmaker Chris Marker's chatbot from 1988

https://kubicki.org/letters/the-festival-of-the-machines/
49•kosmavision•3d ago•4 comments

The enshittification of Amazon paperback books

https://www.alexerhardt.com/en/enshittification-amazon-paperback-books/
59•aerhardt•2h ago•34 comments

An ode to bzip

https://purplesyringa.moe/blog/an-ode-to-bzip/
144•signa11•19h ago•77 comments

Fedora 44 on the Raspberry Pi 5

https://nullr0ute.com/2026/03/fedora-44-on-the-raspberry-pi-5/
102•jandeboevrie•15h ago•31 comments

Marketing for Founders

https://github.com/EdoStra/Marketing-for-Founders
190•jimsojim•16h ago•81 comments

Airbus is preparing two uncrewed combat aircraft

https://www.airbus.com/en/newsroom/press-releases/2026-03-airbus-is-preparing-two-uncrewed-combat...
156•phasnox•12h ago•96 comments

Baochip-1x: What it is, why I'm doing it now and how it came about

https://www.crowdsupply.com/baochip/dabao/updates/what-it-is-why-im-doing-it-now-and-how-it-came-...
322•timhh•3d ago•70 comments

Library of Short Stories

https://www.libraryofshortstories.com/
87•debo_•15h ago•4 comments

A Recursive Algorithm to Render Signed Distance Fields

https://pointersgonewild.com/2026-03-06-a-recursive-algorithm-to-render-signed-distance-fields/
97•surprisetalk•3d ago•7 comments

Hostile Volume – A game about adjusting volume with intentionally bad UI

https://hostilevolume.com/
99•Velocifyer•17h ago•62 comments
Open in hackernews

The enshittification of Amazon paperback books

https://www.alexerhardt.com/en/enshittification-amazon-paperback-books/
59•aerhardt•2h ago

Comments

jn6118•1h ago
This article really resonates with me and I'm somewhat relieved to see someone else feels the same way.

I love physical books for general reading and will often buy both physical and ebook format for technical books to get the best of both worlds.

I now cannot stand print-on-demand books and, like the author, I can spot them very quickly. The quality is abysmal, and I might as well be printing them myself at that point.

I too used to default to Amazon, as the price was often about 30% cheaper. However, I've come to realise that you get what you pay for. In the UK, I just buy from Waterstones or local bookshops, as then I can trust that it has likely come from the publisher or at least can inspect in advance.

I am never buying a book from Amazon again.

GeoSys•1h ago
Is there a way to filter out such books when you browse Amazon? They should at least tell you it's an "on-demand" printed book before you order?
toofy•40m ago
i don’t know of a way. but even if you can, it will almost certainly be done away with.

i’m so jaded im sure it would end up like trying to filter out shorts on youtube. click the “show me less of this” only for it to show you more.

aerhardt•39m ago
I haven't found one, like I mention in the article; I'll edit it if someone proves me wrong.

I'm starting to get a feel for a pattern - the books tend to be more expensive, and also take longer on average to deliver (a few weeks, instead of a few days). The latter would be normal for rare editions and some third-party sellers, but if I'm ordering a popular book and it takes longer than usual to deliver I can kinda smell the dead rat. But the only way to know for sure is to open the box in disappointment.

georgefrowny•1h ago
It's also incredibly annoying that Amazon slurped up AbeBooks way back in 2008.
tianqi•1h ago
I don't have any reason to believe this is not a scam. If Amazon had any good intention in doing this, why didn’t they simply note on the webpage that this book is printed on demand? Those introduction on pages look exactly the same as those for the original edition. It’s only once you’ve received the book that you realise Amazon has printed it themselves. I don’t like this game, and now I never buy books from Amazon unless I absolutely have to.
userbinator•1h ago
Is it really the enshittification of books, or the enshittification of printers that's responsible?
zecg•1h ago
I gave up, bought a kobo libra2 that never saw an internet connection (you can find updated firmware online to download) and now just borrow epubs in the soulseek library.
wood_spirit•1h ago
I also just brought the cheapest oldest b&w model kobo reader still on sale and put epubs on it. Haven’t even updated the OS. Just works. Sweet.
g947o•26m ago
I hope the kobo store has rigorous screening of their books, unlike Amazon: https://news.ycombinator.com/item?id=47386280

These days it's hard to even get a proper book to read.

EddieB•1h ago
The last 3 books I’ve purchased from Amazon (UK) have been of questionable quality. The most recent was Designing Data–Intensive Applications (O’Reilly) and I’m still not sure if it’s print on demand, counterfeit- or just a reject. Roller marks, damaged pages, slightly off print. The returns process is inconvenient, one-offs are okay but on multiple purchases it’s fatiguing and so the book stays.

This isn’t specific to Amazon, I had the same issue with Waterstones in the UK (online)

I now just buy second hand (Abe, WOB) and hope for the best.

g947o•34m ago
Your DDIA book might be an international version. Check if it says the edition is only for sale in India.
heisenbit•1h ago
It is not just the print, it is also the way pages are cut and bound. The printed area is not where it should be on the page.
nottorp•1h ago
Isn't paperback basically dead in the US because most sales are digital now?

Tbh i've given up on dead tree books with the lone exception of a few hard covers because ... space the final frontier.

dgacmu•35m ago
Mass-market paperbacks are definitely dying, but trade paperbacks continue to sell (at rates lower than mass-market, obviously):

https://www.publishersweekly.com/pw/by-topic/industry-news/p...

(trade paperbacks are the larger paperback editions printed on better paper than the mass market paperbacks, but still soft-cover.)

John Scalzi posted about this a few months ago:

"All my recent books went from hardcover to trade paperback and almost all of my backlist in mass market has now migrated to trade. The role of mass market paperbacks is now handled almost entirely by ebooks."

https://bsky.app/profile/scalzi.com/post/3m7xzfxxcg222

emchammer•1h ago
It’s easy to tell when these books are printed by a high-volume inkjet printer. They are not as pleasurable to read. It’s a certain fuzziness, like when cinemas first went to digital, and when planetariums got rid of their optical star projectors.
aerhardt•50m ago
I had a friend over and we talked about the subject. She owns a Penguin stock copy of Martin Eden and upon checking my print-on-demand copy her first reaction was: "Yea, this looks like crap, but above all, the type is making me dizzy".

I only mention it in passing the article but I'm regretting not showing pictures of how bad the page typesetting can get - perhaps I'll revise it this week. There's a substantial qualitative jump from "this book looks like a cheap knock-off" to "reading this is giving me a headache".

And yes, while I don't have a clue about the printing process, the image of an inkjet printer has also come to mind on occasion!

ljm•1h ago
I like to buy books and would never buy from Amazon. Haven't for a long time for many reasons.

I find it more enjoyable to browse a local bookshop or charity shop and, if I want to buy something specific online I'll go with bookshop.org.

liendolucas•1h ago
I've experienced this. Actually when I received the book from Amazon I thought it was a counterfeit copy, only to discover that on the very last page it says: "Printed by Amazon Logistica Italia S.r.l".

Amazon's business shouldn't be printing books and obviously they should state clearly that the book you are purchasing is printed by them.

The current solution? Just return the item.

nbernard•18m ago
> The current solution? Just return the item.

Yes, and write a low stars review explaining the problem. Returns alone don't hurt future sales of identical items.

sevenseacat•1m ago
That sucks for the author of the book though, if their books start getting low ratings for something entirely out of their control.
dev_l1x_be•56m ago
The enshittification of Amazon. Full stop. When the MBA types with excel sheets took over everything started to go downhill.
crimsontech•48m ago
I remember getting some questionable quality books from amazon which didn't match up to the usual standard of a publisher. No Starch Press called this out in the past saying amazon sell counterfieght books. https://x.com/nostarch/status/1183095004258099202

I'm not sure what actually happens, but I mostly stopped buying paperbacks on Amazon a good while ago, and if I do, and I'm unhappy with the quality I'll return it.

emacdona•43m ago
I noticed this years ago with technical books. IIRC, Manning was the first publisher that I noticed doing it. Pages so thin that I could see the text on the reverse side as I was reading it - it drove me crazy. O'Reilly started doing the same.

I had a PDF version of On Lisp (Paul Graham put it on his website for free some time after it went out of print). I used lulu.com to turn it into a printed book (1 copy for myself). I love it. The cover art isn't great (low-res image; not Lulu's fault), but the paper stock is amazing (I got to choose it!). The print quality is also great.

Lulu provides some evidence that you can run a profitable business and still offer users the ability to do _very small_ print runs (1 book). I wish they (or someone like them) could work out a deal with publishers that would let me choose the paper stock I want when I order a book online.

But, maybe there are other options...

Two quotes from the article:

> I purchase most of my books through Amazon. I don’t find the speed of delivery that valuable, but the competitive pricing (especially factoring in Prime), ease of ordering [...]

> To add insult to injury, print-on-demand books seem to be significantly more expensive than stock equivalents

That's the classic enshittification playbook right there. Hook 'em with low prices. Once you've captured the market, lower your costs and raise prices.

Vote with your wallet. Go to a bookstore. Small and local is fun if you don't have a particular book in mind. If you do have a particular book in mind, check Barnes and Noble's website. It will tell you if it's in stock near you. If not, order it. If you go to pick it up and don't like the quality of the print/binding -- return it.

edit: fixed spacing for quoted text

newsclues•43m ago
I don’t have issues with print on demand books but they should be clearly labeled and Amazon should invest in increasing quality.

In fact I love the idea of high quality print on demand books that are distributed everywhere.

mat0•35m ago
if you appreciate books, you don’t buy them from amazon. that’s been true for a number of years now. of course, if someone is tight on budget and wants to get a book, I wouldn’t go at them for getting the cheapest option available, which in 99% of cases, amazon is. but for people that can afford it? no excuse. I find it to be immoral to buy from amazon. my wife and I have switched years ago: small local libraries > dussmann > amazon
Freak_NL•15m ago
Often local booksellers will have the ability to order pretty much anything in print too. Here in the Netherlands there are only a few exceptions I can't order¹ locally, and even then I can usually find them on the national Amazon alternatives (i.e., Bol.com, which sucks, but isn't nearly as evil as Amazon).

For affordability I would recommend anyone interested in reading to visit secondhand book fairs for the breadth of titles available, and yard/church/jumble sales for the chance finds. Instead of buying a book immediately when you come across a title you like or got recommended, maintain a wishlist spreadsheet and sync that to your smartphone or print it when you go hunting for books. The author of this article follows Umberto Eco's philosophy of book hoarding (as they should, and as I do), so they will have quite the collection to pick from already. Delayed gratification for any desired title is totally compatible with that.

And obviously: if you can't afford local booksellers, join a library — that is way cheaper than Amazon, and better for all concerned.

1: Frustratingly, this includes the mass paperback editions of Brandon Sanderson's The Stormlight Archive series.

rleigh•35m ago
It's not just Amazon. I bought a copy of an ARM assembly book from a proper bookseller (Blackwells) which was a proper hardback for a high price--something like £80, and I received a print-on-demand mess with a hardcover. The print was there but barely legible, a dotty mess which gave me a headache. I returned it.

I can see print-on-demand working very well, but not until the quality issues are sorted out. Being charged top dollar for something which is substantially inferior is unacceptable.

g947o•28m ago
Somewhat related:

Amazon has a huge fake ebook problem as well.

I recently spent $2 buying an ebook that is still copyrighted. It is cheaper than the first item in search result that has more reviews. I thought, it's an ebook, what could go wrong.

Upon opening it, I found that the formatting is completely off. Words are concatenated. It was impossible to read.

A few days later, I noticed that the book is gone from Amazon store. I cannot open the link from my order page, and I cannot even ask for a refund. I had to ask customer service to do that. I guess this was a pirated book that was taken down.

It was a shame Amazon did not even notify me of this.

And I hope this doesn't happen on kobo or elsewhere.

danaris•22m ago
If you want to buy books nowadays, and care about quality (or about not having your money go to fund fascist billionaires), your best bets are bookshop.org for new books, and alibris.com for used books.
paozac•19m ago
Buy second hand books if you can: wider selection, good for the environment, lower price (usually), supports small businesses (usually).
wolfi1•6m ago
I buy books which are classics or longsellers usually from used book stores or at flea markets, or generally from book stores where I can inspect the books before buying.
sevenseacat•3m ago
This is partially why I don't buy print books anymore, unless I have no other choice (like random region restrictions on ebooks I want to read).

Sadly, I'm completely locked into the Amazon ecosystem for ebooks, but at least there I know what I'm getting.

kawie•1m ago
There are excellent english book stores in Madrid, and if you enjoy collecting books, you'll most likely enjoy the experience of going to one and buying a book there. If the book you're looking for is out of stock, they can usually get it for you the next day. There is literally no reason to buy books on Amazon.