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Capital One to acquire Brex for $5.15B

https://www.reuters.com/legal/transactional/capital-one-buy-fintech-firm-brex-515-billion-deal-20...
195•personjerry•6h ago•146 comments

GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

https://gptzero.me/news/neurips/
747•segmenta•12h ago•396 comments

Show HN: isometric.nyc – giant isometric pixel art map of NYC

https://cannoneyed.com/isometric-nyc/
723•cannoneyed•11h ago•161 comments

Why does SSH send 100 packets per keystroke?

https://eieio.games/blog/ssh-sends-100-packets-per-keystroke/
331•eieio•8h ago•213 comments

I was banned from Claude for scaffolding a Claude.md file?

https://hugodaniel.com/posts/claude-code-banned-me/
404•hugodan•9h ago•307 comments

Why medieval city-builder video games are historically inaccurate (2020)

https://www.leidenmedievalistsblog.nl/articles/why-medieval-city-builder-video-games-are-historic...
80•benbreen•3h ago•42 comments

Turso is an in-process SQL database, compatible with SQLite

https://github.com/tursodatabase/turso
65•marklit•3d ago•31 comments

Bugs Apple Loves

https://www.bugsappleloves.com
256•nhod•1h ago•77 comments

What Is Control Flow Analysis for Lambda Calculus? – Iowa Type Theory Commute

https://rss.buzzsprout.com/728558.rss
10•matt_d•6d ago•0 comments

Qwen3-TTS family is now open sourced: Voice design, clone, and generation

https://qwen.ai/blog?id=qwen3tts-0115
497•Palmik•14h ago•157 comments

Improving the usability of C libraries in Swift

https://www.swift.org/blog/improving-usability-of-c-libraries-in-swift/
70•timsneath•4h ago•2 comments

Douglas Adams on the English–American cultural divide over "heroes"

https://shreevatsa.net/post/douglas-adams-cultural-divide/
361•speckx•14h ago•369 comments

Your app subscription is now my weekend project

https://rselbach.com/your-sub-is-now-my-weekend-project
260•robteix•4d ago•193 comments

Scaling PostgreSQL to power 800M ChatGPT users

https://openai.com/index/scaling-postgresql/
78•mustaphah•6h ago•25 comments

My first year in sales as technical founder

https://www.fabiandietrich.com/blog/first-year-in-sales.html
88•f3b5•5d ago•39 comments

Stunnel

https://www.stunnel.org/
35•firesteelrain•3h ago•8 comments

Anthropic Economic Index economic primitives

https://www.anthropic.com/research/anthropic-economic-index-january-2026-report
70•malshe•6h ago•42 comments

CSS Optical Illusions

https://alvaromontoro.com/blog/68091/css-optical-illusions
152•ulrischa•10h ago•13 comments

Recent discoveries on the acquisition of the highest levels of human performance

https://www.science.org/doi/abs/10.1126/science.adt7790
112•colincooke•10h ago•52 comments

Composing APIs and CLIs in the LLM era

https://walters.app/blog/composing-apis-clis
41•zerf•10h ago•9 comments

'Active' sitting is better for brain health: review of studies

https://www.sciencealert.com/not-all-sitting-is-equal-one-type-was-just-linked-to-better-brain-he...
78•mikhael•9h ago•31 comments

Compiling Scheme to WebAssembly

https://eli.thegreenplace.net/2026/compiling-scheme-to-webassembly/
77•chmaynard•5d ago•11 comments

'Askers' vs. 'Guessers' (2010)

https://www.theatlantic.com/national/2010/05/askers-vs-guessers/340891/
103•BoorishBears•16h ago•60 comments

In Europe, wind and solar overtake fossil fuels

https://e360.yale.edu/digest/europe-wind-solar-fossil-fuels
509•speckx•13h ago•523 comments

A Year of 3D Printing

https://brookehatton.com/blog/making/a-year-of-3d-printing/
110•nindalf•5d ago•97 comments

Arkansas inmates restricted from receiving physical books, other media directly

https://arkansasadvocate.com/2025/12/19/arkansas-inmates-restricted-from-receiving-physical-books...
29•hn_acker•3h ago•21 comments

AnswerThis (YC F25) Is Hiring

https://www.ycombinator.com/companies/answerthis/jobs/r5VHmSC-ai-agent-orchestration
1•ayush4921•11h ago

Pushing the smallest possible change to production

https://ankursethi.com/blog/smallest-possible-change/
14•GeneralMaximus•4d ago•3 comments

Keeping 20k GPUs healthy

https://modal.com/blog/gpu-health
103•jxmorris12•4d ago•42 comments

Extracting a UART Password via SPI Flash Instruction Tracing

https://zuernerd.github.io/blog/2026/01/07/switch-password.html
53•Eduard•6h ago•11 comments
Open in hackernews

Arkansas inmates restricted from receiving physical books, other media directly

https://arkansasadvocate.com/2025/12/19/arkansas-inmates-restricted-from-receiving-physical-books-other-media-directly-under-new-policy/
29•hn_acker•3h ago

Comments

hn_acker•3h ago
The full title is:

> Arkansas inmates restricted from receiving physical books, other media directly under new policy

The article is from December 2025, and the policy takes effect on February 1, 2026.

hn_acker•3h ago
Compared to mail, prison staff might be a much more common source of contraband in prisons [1].

Reading can reduce recidivism [2]. Taking inspiration from John F. Kennedy [3], I'd say that those who make prison rehabilitation impossible will make preventable recidivism inevitable.

[1] https://www.themarshallproject.org/2023/10/18/prison-drugs-o...

[2] https://en.wikipedia.org/wiki/Changing_Lives_Through_Literat...

[3] https://www.presidency.ucsb.edu/documents/address-the-first-...

treetalker•2h ago
For the sake of comparison, see Brazil’s Bolsonaro finds novel way to reduce 27-year sentence: reading books. [1]

[1]: https://www.theguardian.com/world/2026/jan/16/brazil-jair-bo...

kazinator•1h ago
> in order to tamp down on contraband being smuggled into prisons.

You can thumb flip through 300 pages in under a second to see that there is nothing in there.

fhdkweig•1h ago
It is bonded to the paper. The paper is soaked in liquid drugs and then left to dry. The books are then shipped to the jails. Once there, the pages are then torn out and eaten or smoked.

https://duckduckgo.com/?q=bug+pesticide+paper+prison

https://www.goerie.com/story/news/crime/2024/11/27/inmate-ma...

https://filtermag.org/drug-strips-prisons-jails-research/

AlotOfReading•27m ago
Pretty much a textbook use case for surface drug test kits.
fhdkweig•20m ago
You'd need a test for every random chemical someone can use to get high. This story piqued my interest a few years ago because I didn't realize people got high off bug spray.

I think the best alternative solution is to get better e-books on the tablets the prisons already have, as airstrike said.

barbazoo•14m ago
Also much easier to extract money that way when the ebook can’t be transferred whereas a book can be traded freely once it’s in the prison system.
LeoPanthera•15m ago
A textbook case, you say?
Hnrobert42•1h ago
This is a pretty common restriction.
tecleandor•1h ago
Although that doesn't make it good.
greenburger•1h ago
This restriction appears to go beyond most other state level policies in the US.

> This is the strictest ban on sending reading material to prisons in the country. Advocates worry this will launch similar efforts nationwide. [0]

[0] https://bookriot.com/arkansas-prison-book-ban/

peyton•1h ago
“Advocates worry”

What are we talking about here? Who are these advocates and why should I listen to their worries over prison personnel?

electroglyph•18m ago
Treating prisoners humanely and preparing them to resume a productive life after prison helps us all.
blindriver•1h ago
They still have access to the prison library. It's only about receiving direct books and magazines.
striking•1h ago
> Critics say such restrictions, however, severely limit access for people in prison to reading materials since the offerings in prison libraries and on prison-issued tablets can be limited or outdated.
airstrike•58m ago
Sounds like there's a very easy solution to the problem
striking•17m ago
Yeah. Restoring their rights.
Ancapistani•46m ago
I live in Arkansas, and both know people have been in the state prison system and have family that work in it.

This didn't come out of nowhere. Book and letters have both been used in the past to smuggle in drugs - including soaking the paper in liquids and then extracting them or using them directly inside.

OutOfHere•25m ago
Maybe the specific solvent liquids are more of the problem there than the books.
jdkee•22m ago
Likely water.