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What I haven't figured out

https://macwright.com/2026/01/29/what-i-havent-figured-out
1•stevekrouse•1m ago•0 comments

KPMG pressed its auditor to pass on AI cost savings

https://www.irishtimes.com/business/2026/02/06/kpmg-pressed-its-auditor-to-pass-on-ai-cost-savings/
1•cainxinth•1m ago•0 comments

Open-source Claude skill that optimizes Hinge profiles. Pretty well.

https://twitter.com/b1rdmania/status/2020155122181869666
1•birdmania•1m ago•1 comments

First Proof

https://arxiv.org/abs/2602.05192
2•samasblack•3m ago•1 comments

I squeezed a BERT sentiment analyzer into 1GB RAM on a $5 VPS

https://mohammedeabdelaziz.github.io/articles/trendscope-market-scanner
1•mohammede•4m ago•0 comments

Kagi Translate

https://translate.kagi.com
1•microflash•5m ago•0 comments

Building Interactive C/C++ workflows in Jupyter through Clang-REPL [video]

https://fosdem.org/2026/schedule/event/QX3RPH-building_interactive_cc_workflows_in_jupyter_throug...
1•stabbles•6m ago•0 comments

Tactical tornado is the new default

https://olano.dev/blog/tactical-tornado/
1•facundo_olano•8m ago•0 comments

Full-Circle Test-Driven Firmware Development with OpenClaw

https://blog.adafruit.com/2026/02/07/full-circle-test-driven-firmware-development-with-openclaw/
1•ptorrone•8m ago•0 comments

Automating Myself Out of My Job – Part 2

https://blog.dsa.club/automation-series/automating-myself-out-of-my-job-part-2/
1•funnyfoobar•8m ago•0 comments

Google staff call for firm to cut ties with ICE

https://www.bbc.com/news/articles/cvgjg98vmzjo
20•tartoran•9m ago•1 comments

Dependency Resolution Methods

https://nesbitt.io/2026/02/06/dependency-resolution-methods.html
1•zdw•9m ago•0 comments

Crypto firm apologises for sending Bitcoin users $40B by mistake

https://www.msn.com/en-ie/money/other/crypto-firm-apologises-for-sending-bitcoin-users-40-billion...
1•Someone•9m ago•0 comments

Show HN: iPlotCSV: CSV Data, Visualized Beautifully for Free

https://www.iplotcsv.com/demo
1•maxmoq•10m ago•0 comments

There's no such thing as "tech" (Ten years later)

https://www.anildash.com/2026/02/06/no-such-thing-as-tech/
1•headalgorithm•11m ago•0 comments

List of unproven and disproven cancer treatments

https://en.wikipedia.org/wiki/List_of_unproven_and_disproven_cancer_treatments
1•brightbeige•11m ago•0 comments

Me/CFS: The blind spot in proactive medicine (Open Letter)

https://github.com/debugmeplease/debug-ME
1•debugmeplease•12m ago•1 comments

Ask HN: What are the word games do you play everyday?

1•gogo61•15m ago•1 comments

Show HN: Paper Arena – A social trading feed where only AI agents can post

https://paperinvest.io/arena
1•andrenorman•16m ago•0 comments

TOSTracker – The AI Training Asymmetry

https://tostracker.app/analysis/ai-training
1•tldrthelaw•20m ago•0 comments

The Devil Inside GitHub

https://blog.melashri.net/micro/github-devil/
2•elashri•20m ago•0 comments

Show HN: Distill – Migrate LLM agents from expensive to cheap models

https://github.com/ricardomoratomateos/distill
1•ricardomorato•20m ago•0 comments

Show HN: Sigma Runtime – Maintaining 100% Fact Integrity over 120 LLM Cycles

https://github.com/sigmastratum/documentation/tree/main/sigma-runtime/SR-053
1•teugent•21m ago•0 comments

Make a local open-source AI chatbot with access to Fedora documentation

https://fedoramagazine.org/how-to-make-a-local-open-source-ai-chatbot-who-has-access-to-fedora-do...
1•jadedtuna•22m ago•0 comments

Introduce the Vouch/Denouncement Contribution Model by Mitchellh

https://github.com/ghostty-org/ghostty/pull/10559
1•samtrack2019•23m ago•0 comments

Software Factories and the Agentic Moment

https://factory.strongdm.ai/
1•mellosouls•23m ago•1 comments

The Neuroscience Behind Nutrition for Developers and Founders

https://comuniq.xyz/post?t=797
1•01-_-•23m ago•0 comments

Bang bang he murdered math {the musical } (2024)

https://taylor.town/bang-bang
1•surprisetalk•23m ago•0 comments

A Night Without the Nerds – Claude Opus 4.6, Field-Tested

https://konfuzio.com/en/a-night-without-the-nerds-claude-opus-4-6-in-the-field-test/
1•konfuzio•25m ago•0 comments

Could ionospheric disturbances influence earthquakes?

https://www.kyoto-u.ac.jp/en/research-news/2026-02-06-0
2•geox•27m ago•1 comments
Open in hackernews

Sodium batteries are finally catching up

https://www.sciencedaily.com/releases/2025/10/251016223116.htm
27•tromp•3mo ago

Comments

hn_throwaway_99•3mo ago
> The current research advances sodium as a viable alternative for batteries, a vital step to combat the rarity and environmental damage of lithium. It's one of many steps ahead.

Curious what some of the many steps ahead are. Seems like these articles about battery breakthroughs WRT non-lithium chemistries come out frequently, but nothing ever seems to come to fruition, and lithium still dominates. Just want to know why all these breakthroughs never make it to industrial scale.

theragra•3mo ago
From my limited research, sodium batteries are somewhat commonly used in Chinese EV.
cultofmetatron•3mo ago
Even if sodium ion batteries have a quarter the energy density of lithium, they are still a massive win for grid scale storage. Honestly don't know why there's such a push for them in EVs when lithium works fine there. The cost benefit of sodium ion really makes a lot more sense when you can just drop a bunch of them on a lot of land and have it essentially be a reserve of power for a municipality.
hyghjiyhu•3mo ago
What are your thoughts on sodium batteries vs water electrolysis for grid scale?
cultofmetatron•3mo ago
water electrolysis is mind numbingly inefficient + you still have the hydrogen embrittlement problem. Additionally, you then also need a hydrogen fuel cell which relies on some pretty expensive materials like paladium. Lithium ion batteries already are a better fit for small scale grid storage since all you need is the battery and a power management system. Sodium even if its not as good as lithium for density will still be a much better fit for the vast majority of use cases than electrolysis from a maintence and power efficiency perspective.
chris222•3mo ago
The safety aspect of them is probably more important than in grid storage. Also the performance at colder temps.
ianburrell•3mo ago
Sodium doesn't make sense for vehicles when there are safer lithium chemistries like LiFePO4 that have lower density than the combustible ones but better than sodium.

LiFePO4, and presumably sodium-ion, can burn once ignited but should be hard to get started.

jerf•3mo ago
The tech is hitting the market now: https://www.bluettipower.com/products/sodium-ion-battery-pio...

YouTube has some reviews if you're interested. They're out in the wild now. Not being in the industry, I was a bit surprised when YouTube randomly popped up some recommendation about that. I didn't realize it was that far along.

theragra•3mo ago
You can also buy cells directly from china.

I found this store, which seems somewhat reliable https://hakadibattery.com/collections/sodium-ion-battery-cel...

Havoc•3mo ago
Keen to use them for hobby purposes. The idea of DIY soldering and lithium has never appealed from a safety pov
theragra•3mo ago
Lithium has several much safer chemistries then we use in phones. LTO for example, or LiFePo4
theragra•3mo ago
I've recently wondered, can you buy consumer sodium cells. Apparently, the only way is to order from china directly.

These seem to look more trustworthy (did not order yet) https://hakadibattery.com/collections/sodium-ion-battery-cel...