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White by Default: Bias in Criminal Racial Assignment

https://uncorrelated.xyz/posts/white-by-default-systematic-bias-in-us-criminal-racial-assignment/
1•like_any_other•1m ago•0 comments

"80% of AI projects fail" traces to a footnote one line long

https://jamiewatters.work/journey/80-percent-ai-projects-fail
1•TheWayWithin•1m ago•0 comments

The Dark Side of Efficiency

https://aslihan.live/posts/darkside-of-efficiency/
1•aslihana•2m ago•0 comments

US 'super-emitters' of planet heating methane identified by satellite analysis

https://www.theguardian.com/environment/2026/sep/14/us-companies-methane-pollution-rankings
1•johnny313•3m ago•0 comments

A thing we may be able to learn from AI

https://wilsoniumite.com/2026/09/21/a-thing-we-may-be-able-to-learn-from-ai/
1•Wilsoniumite•4m ago•0 comments

Live – The first interactive map with all world-wide substations

https://scienceshot.com/energy-map
1•major_stef•4m ago•1 comments

Fastlogging-Rs: High-Performance Logging for Rust, Python, C, C++, Java, Go, C#

https://github.com/brmmm3/fastlogging-rs
1•brmmm3•6m ago•0 comments

A graded registry of GPU cloud prices and fabric disclosure

https://computeassay.com/
1•RentAnAgent•6m ago•0 comments

OpenAI doesn't cryptographically sign its API responses

https://community.openai.com/t/feature-request-a-way-to-publicly-verify-responses-api-outputs/138...
1•teodoro127•6m ago•0 comments

Refineries Not Factories

https://twitter.com/kcurtin/status/2102123027886665861
1•kcurtin•7m ago•0 comments

"Convenience" by W.S. Merwin

https://merwinconservancy.org/poems/convenience-by-w-s-merwin/
1•smartmic•8m ago•0 comments

Typio v1.3: Make Your Terminal Type Like a Human

https://github.com/sepandhaghighi/typio/releases/tag/v1.3
1•rankorn•10m ago•0 comments

Shopify partners with Muse for agentic checkout with Shop Pay

https://twitter.com/tobi/status/2102090718546198790
1•vertigoruntime•14m ago•0 comments

FreePinion – Comments on the page you are viewing, stored on Freenet

https://freepinion.pages.dev
1•HostFat•14m ago•1 comments

In the heart of tech country, voters turn on AI

https://www.politico.com/news/2026/09/21/poll-california-voters-turn-on-ai-01084870
1•rurp•15m ago•0 comments

Googlebook

https://blog.google/products-and-platforms/platforms/android/meet-googlebook/
1•sapal•15m ago•2 comments

What Does This Assembly Code Do?

https://www.pagetable.com/301
1•kencausey•16m ago•0 comments

Show HN: Emote – A reaction API for AI agents

https://useemote.com
1•alexanderqchen•17m ago•0 comments

Researchers used Claude to hack OpenAI

https://arstechnica.com/ai/2026/09/researchers-used-claude-to-hack-openai/
1•Danhale93•18m ago•0 comments

In Fighting for Every Black Child, Did I Betray My Own?

https://www.nytimes.com/2026/09/20/magazine/ny-public-schools-black-students-segregation.html
2•rmason•18m ago•1 comments

Transformers Explained Visually

https://poloclub.github.io/transformer-explainer/
2•aray07•20m ago•0 comments

History Explains Why the U.S. Doesn't Ban Hate Speech

https://time.com/7320705/us-hate-speech-first-amendment-history/
2•iamnothere•21m ago•0 comments

Show HN: Differential – a TUI diff reviewer with semantic grouping

https://github.com/thepartly/differential
2•gogoout•21m ago•0 comments

Pay-as-you-go is the wrong model for durable execution

https://medium.com/@schneideryaron/per-action-pricing-is-the-wrong-model-for-durable-execution-ca...
1•yaronsc•22m ago•0 comments

Accident: Allegiant A320 at Greenville, runway excursion and tail strike

https://avherald.com/h?article=54165456
1•r2sk5t•23m ago•0 comments

Self-hosted AI agent that builds internal apps on your own data

https://www.youtube.com/watch?v=FNgjuvw2BmU
2•davletdz•31m ago•0 comments

Meta's New Muse AI App Tops Charts, Draws Strong Early Reviews

https://www.bloomberg.com/news/articles/2026-09-21/meta-s-new-muse-ai-app-tops-charts-draws-stron...
1•vipshek•33m ago•0 comments

The Recursive Manifest Compiler: A Traceable Symbolic Architecture

https://www.academia.edu/175953896/The_Recursive_Manifest_Compiler
2•nicbogaert•36m ago•0 comments

We Built a Lip-Reading Creeperbot [video]

https://www.youtube.com/watch?v=Ks5Dzbt6EVI?t=569
1•pilingual•37m ago•0 comments

Patches Posted with Aim to Mainline Linux Kernel Support for the Amazon Kindle 4

https://www.phoronix.com/news/Amazon-Kindle-4-Linux-Patches
2•rbanffy•38m ago•0 comments
Open in hackernews

Ask HN: Which function definition keyword do you prefer, def or fn?

1•winwang•1y ago
I'm curious about what people think of `def` vs `fn`, two short keywords for starting function definitions.

...Or maybe we should subscribe to the church of `df`, haha.

Comments

sitkack•1y ago
def could be for lots of things, fn is for functions. I don't think it matters much as long as you have one. C would have been so much easier to parse. Just copy Zig or Rust.
butlersean•1y ago
def means define, could be used to define all kinds of things

fn isnt a legitimate short form of function

fun doesnt work because of the amusement factor

func is the only alternative we have left

sitkack•1y ago
How about unicode or emojis?

These don't have the full fidelity as hn scrubs emojis

add = (a, b) -> a + b

a, b ⟹ a + b

λ add(a, b): ↪ a + b

johncoltrane•1y ago
"def" is too generic.

"fn" is too cryptic.

"function" is better than the two.

MultifokalHirn•1y ago
Agreed