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Measuring Reward-Seeking via Contrastive Belief Updates

https://arxiv.org/abs/2607.18966
1•sbulaev•2m ago•0 comments

French parliament backs social media ban for children under 15

https://www.reuters.com/legal/litigation/french-lawmakers-vote-social-media-ban-children-2026-07-21/
1•1vuio0pswjnm7•3m ago•0 comments

Show HN: Dex – Explore any Data Warehouse without worrying about costs

https://github.com/exmergo/dex
1•marcociavarella•3m ago•0 comments

Anthropic's landmark $1.5B copyright settlement is approved

https://techcrunch.com/2026/07/20/anthropics-landmark-1-5b-copyright-settlement-is-approved/
1•doener•4m ago•0 comments

Show HN: The BUSY build system now generates CMake so you can easily use LeanQt

https://github.com/rochus-keller/BUSY/blob/main/docs/The_BUSY_Build_System_Users_Guide.adoc
1•Rochus•6m ago•0 comments

Shape-shifting mirrors on NASA's new space telescope could unveil Jupiters like

https://www.technologyreview.com/2026/07/22/1140701/shape-shifting-mirrors-roman-space-telescope/
1•joozio•7m ago•0 comments

Show HN: Sunflowers

https://sunflowersgame.com/
2•pompomsheep•10m ago•1 comments

NVLink, NVSwitch, and All That

https://blog.doubleword.ai/nvlink-scale-up
4•somnial•10m ago•1 comments

Kalshi debuts US midterms hub for election forecasts and polling data

https://www.reuters.com/world/us/kalshi-debuts-us-midterms-hub-election-forecasts-polling-data-20...
2•1vuio0pswjnm7•11m ago•0 comments

AI investment boom puts Big Tech's free cash flow under pressure

https://www.reuters.com/business/ai-investment-boom-puts-big-techs-free-cash-flow-under-pressure-...
2•1vuio0pswjnm7•12m ago•0 comments

Kenze – An interactive shell for wrangling files bigger than your RAM

https://github.com/Kenzy-Zero/kenze
1•kenzy_zero•12m ago•0 comments

An observer-consistency framework for physics with 639 Lean-checked results

https://github.com/FloatingPragma/observer-patch-holography/blob/main/docs/HACKER_NEWS_START_HERE.md
1•berndtzl•15m ago•0 comments

The U.S. wants to contain China’s AI. Silicon Valley keeps using it

https://restofworld.org/2026/china-siliconvalley-ai-moonshot-kimi/
4•donohoe•15m ago•0 comments

Bielik.ai: Community-built, open-source LLMs for Polish and European languages

https://bielik.ai/en/home/
2•kacperlukawski•19m ago•0 comments

OverpAId – Fire your CEO. Hire the future

https://overpaid.lol
1•ignaloidas•20m ago•0 comments

Planned Updates to the PyPI User Interface

https://blog.pypi.org/posts/2026-07-22-ui-updates/
1•di•20m ago•0 comments

Flock Said Its Cameras Don't Track People. Then a Reporter Proved Them Wrong

https://www.gadgetreview.com/flock-said-its-cameras-dont-track-people-then-a-reporter-proved-them...
1•baranul•24m ago•0 comments

The case against crypto (2021)

https://www.stephendiehl.com/posts/against_crypto/
1•simonebrunozzi•26m ago•0 comments

KDE for Enterprise Needs a Strong PIM Infrastructure

https://ervin.ipsquad.net/blog/2026/07/21/kde-for-entreprise-needs-a-strong-pim-infrastructure/
1•birdculture•26m ago•1 comments

Chinese companies are taking over the EV market. What's behind their rise?

https://theconversation.com/chinese-companies-are-taking-over-the-ev-market-whats-behind-their-me...
3•baranul•27m ago•0 comments

OpenAI expands to Israel: first commercial hires and tech outreach

https://www.i24news.tv/en/news/israel/economy/artc-openai-expands-to-israel-first-commercial-hire...
2•EchooAI•30m ago•0 comments

Empathy and delight mean nothing when the software is disrespectful

https://productpicnic.beehiiv.com/p/empathy-and-delight-mean-nothing-when-the-software-is-disresp...
1•SouravInsights•30m ago•0 comments

Awesome edge computing

https://github.com/qijianpeng/awesome-edge-computing
1•teleforce•33m ago•0 comments

Making Xen's dom0 I/O path NUMA aware

https://edera.dev/stories/numa-part-4-closing-the-xen-dom0-i-o-gap
1•virtio_vixen•33m ago•0 comments

Firefox Is Back on X

https://twitter.com/firefox/status/2079317211152564724
2•DeusExMachina•35m ago•2 comments

The Most Famous AI Writing Tic Is Also the Most Mysterious

https://www.theatlantic.com/technology/2026/07/ai-chatbot-writing-tic-negative-parallelism/687892/
2•Anon84•35m ago•0 comments

Show HN: DSCI – Forgejo CI with programming languages instead of YAML

https://github.com/melezhik/DSCI
2•melezhik•39m ago•0 comments

Show HN: add-reasoning-to-prs: a hook that adds unnoticed assumptions to PR desc

https://github.com/backthread/add-reasoning-to-prs
1•bogatyrjov•42m ago•0 comments

Monte Kali

https://en.wikipedia.org/wiki/Monte_Kali
1•yread•42m ago•0 comments

Shadow: Experimentation tool simplifies research, dev, testing and eval of app

https://shadow.github.io/
1•teleforce•44m ago•0 comments
Open in hackernews

Algebraic Effects: Another mistake carried through to perfection?

https://kjosib.github.io/Counterpoint/effects.html
29•todsacerdoti•1y ago

Comments

smitty1e•1y ago
> sweet careers are made of this, so who am I to disagree? Compile the world; Java Python C. Everybody’s looking for some bug. Some of them want to maintain you. Some of them want to be maintained.

For those missing the reference:

https://youtu.be/qeMFqkcPYcg?si=at-YtggekbPdv7sN

voxl•1y ago
The desire of the HN community to pull a random person's uninformed opinion about a topic that they, justifiably, wrote for their own interests and amusement and then pontificate about how either stupid or amazing it is will never ceise to confuse me.

Effects on their own are a very active area of research and I would laugh behind a PL researchers back if they claimed it was a solved issue. Between Monads, call-by-push-value, and algebraic effects there is really no clear "how do people actually use this" answer.

But that's not the job of a PL researcher anyway, or a random software engineer for that matter. Sorry to say, the software engineer knows next to nothing about "the right way" to design language features that people want to use or enjoy using. If anything this should be an HCI person with a penchant for PL or vice versa.

eli_gottlieb•1y ago
>Effects on their own are a very active area of research and I would laugh behind a PL researchers back if they claimed it was a solved issue. Between Monads, call-by-push-value, and algebraic effects there is really no clear "how do people actually use this" answer.

I can actually say that I used algebraic effects in my thesis for the section on semantics of a basic probabilistic programming language. It avoided talking about monads for my committee member who cared and honestly made for an easier implementation.

rednafi•1y ago
> Sorry to say, the software engineer knows next to nothing about "the right way" to design language features that people want to use or enjoy using.

Sorry to say that many PL researchers live in their ivory tower and know next to nothing about things that people care about. One could say that it's not their job, their job is to write papers and get tenure. The number of FP enthusiasts versus the number of large, useful systems written in those languages is all the proof you need.

My statement is a vast generalization and is equally incorrect as the original one.

voxl•1y ago
Anyone who uses words like "ivory tower" I know suffers more from jealousy and anti-intellectualiam than anything else. There is a reason Rust is the most loved programming language of modern times and it's not because they ignored the "ivory tower"
chownie•1y ago
I had to stop and re-read this comment chain because I was sure this was satire
agentultra•1y ago
There’s a certain amount of hubris to say, “I don’t know anything about this and you’re making a mistake.” It’s off putting and kills the whole rant.

I’ve heard opinions from smart people with lots of experience who say algebraic effects are not worth the squeeze. I’ve also heard some say that we should all be pushing the boundaries: they are the future.

So the matter doesn’t seem to be decided. Now isn’t the time for maxims.

gitroom•1y ago
Every time I read stuff like this it just makes me laugh, I honestly never know who to listen to in these debates.
rednafi•1y ago
Research doesn't work like that. I like the idea of separating contract and implementation in algebraic effects. It might pave the way to bring back some sanity to imperative languages and help us write better code, since it's pretty clear that the "real world" doesn't care much about pure functional languages no matter what they bring to the table. Or algebraic effects could be like monads, many like to talk about them while people building real stuff have no clue about it, nor do they care. But we'll never know unless we explore.
lambdas•1y ago
To which implementation is the author referring, I wonder?

I can’t say I recognise any of these issues from freer, polysemy, nor bluefin.

chriswarbo•1y ago
The author says the approach they advocate (just using function parameters) is similar to "dependency injection". It looks like in FP/objects-are-a-poor-man's-closures terminology they're talking about Continuation Passing Style (CPS).