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Concept Artists Say Generative AI References Only Make Their Jobs Harder

https://thisweekinvideogames.com/feature/concept-artists-in-games-say-generative-ai-references-on...
1•KittenInABox•2m ago•0 comments

Show HN: PaySentry – Open-source control plane for AI agent payments

https://github.com/mkmkkkkk/paysentry
1•mkyang•4m ago•0 comments

Show HN: Moli P2P – An ephemeral, serverless image gallery (Rust and WebRTC)

https://moli-green.is/
1•ShinyaKoyano•13m ago•0 comments

The Crumbling Workflow Moat: Aggregation Theory's Final Chapter

https://twitter.com/nicbstme/status/2019149771706102022
1•SubiculumCode•18m ago•0 comments

Pax Historia – User and AI powered gaming platform

https://www.ycombinator.com/launches/PMu-pax-historia-user-ai-powered-gaming-platform
2•Osiris30•18m ago•0 comments

Show HN: I built a RAG engine to search Singaporean laws

https://github.com/adityaprasad-sudo/Explore-Singapore
1•ambitious_potat•24m ago•0 comments

Scams, Fraud, and Fake Apps: How to Protect Your Money in a Mobile-First Economy

https://blog.afrowallet.co/en_GB/tiers-app/scams-fraud-and-fake-apps-in-africa
1•jonatask•24m ago•0 comments

Porting Doom to My WebAssembly VM

https://irreducible.io/blog/porting-doom-to-wasm/
1•irreducible•25m ago•0 comments

Cognitive Style and Visual Attention in Multimodal Museum Exhibitions

https://www.mdpi.com/2075-5309/15/16/2968
1•rbanffy•26m ago•0 comments

Full-Blown Cross-Assembler in a Bash Script

https://hackaday.com/2026/02/06/full-blown-cross-assembler-in-a-bash-script/
1•grajmanu•31m ago•0 comments

Logic Puzzles: Why the Liar Is the Helpful One

https://blog.szczepan.org/blog/knights-and-knaves/
1•wasabi991011•43m ago•0 comments

Optical Combs Help Radio Telescopes Work Together

https://hackaday.com/2026/02/03/optical-combs-help-radio-telescopes-work-together/
2•toomuchtodo•48m ago•1 comments

Show HN: Myanon – fast, deterministic MySQL dump anonymizer

https://github.com/ppomes/myanon
1•pierrepomes•54m ago•0 comments

The Tao of Programming

http://www.canonical.org/~kragen/tao-of-programming.html
1•alexjplant•55m ago•0 comments

Forcing Rust: How Big Tech Lobbied the Government into a Language Mandate

https://medium.com/@ognian.milanov/forcing-rust-how-big-tech-lobbied-the-government-into-a-langua...
3•akagusu•55m ago•0 comments

PanelBench: We evaluated Cursor's Visual Editor on 89 test cases. 43 fail

https://www.tryinspector.com/blog/code-first-design-tools
2•quentinrl•58m ago•2 comments

Can You Draw Every Flag in PowerPoint? (Part 2) [video]

https://www.youtube.com/watch?v=BztF7MODsKI
1•fgclue•1h ago•0 comments

Show HN: MCP-baepsae – MCP server for iOS Simulator automation

https://github.com/oozoofrog/mcp-baepsae
1•oozoofrog•1h ago•0 comments

Make Trust Irrelevant: A Gamer's Take on Agentic AI Safety

https://github.com/Deso-PK/make-trust-irrelevant
7•DesoPK•1h ago•3 comments

Show HN: Sem – Semantic diffs and patches for Git

https://ataraxy-labs.github.io/sem/
1•rs545837•1h ago•1 comments

Hello world does not compile

https://github.com/anthropics/claudes-c-compiler/issues/1
35•mfiguiere•1h ago•20 comments

Show HN: ZigZag – A Bubble Tea-Inspired TUI Framework for Zig

https://github.com/meszmate/zigzag
3•meszmate•1h ago•0 comments

Metaphor+Metonymy: "To love that well which thou must leave ere long"(Sonnet73)

https://www.huckgutman.com/blog-1/shakespeare-sonnet-73
1•gsf_emergency_6•1h ago•0 comments

Show HN: Django N+1 Queries Checker

https://github.com/richardhapb/django-check
1•richardhapb•1h ago•1 comments

Emacs-tramp-RPC: High-performance TRAMP back end using JSON-RPC instead of shell

https://github.com/ArthurHeymans/emacs-tramp-rpc
1•todsacerdoti•1h ago•0 comments

Protocol Validation with Affine MPST in Rust

https://hibanaworks.dev
1•o8vm•1h ago•1 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
5•gmays•1h ago•0 comments

Show HN: Zest – A hands-on simulator for Staff+ system design scenarios

https://staff-engineering-simulator-880284904082.us-west1.run.app/
1•chanip0114•1h ago•1 comments

Show HN: DeSync – Decentralized Economic Realm with Blockchain-Based Governance

https://github.com/MelzLabs/DeSync
1•0xUnavailable•1h ago•0 comments

Automatic Programming Returns

https://cyber-omelette.com/posts/the-abstraction-rises.html
1•benrules2•1h ago•1 comments
Open in hackernews

Clean hydrogen is facing a big reality check

https://www.technologyreview.com/2025/09/18/1123818/hydrogen-reality-check-china/
10•rbanffy•4mo ago

Comments

more_corn•4mo ago
The hydrogen pushers have been delusional from the get go. They will never knowingly face reality.
fuzzfactor•4mo ago
I figure MIT still has lots of people who are above average in math.

These may not be them.

>A major barrier for clean hydrogen today is that dirty methods based on fossil fuels are just so much cheaper than cleaner ones.

That's not the only thing.

Good amounts of hydrogen are produced by oil refineries utilizing surplus energy that was being largely wasted during much earlier decades. Plus the hydrogen atoms come from the hydrocarbons that they are already processing at huge economies of scale. Not only that but that dirty hydrogen in refinery gas itself is also largely surplus since it is the product of refineries producing fuels having lower molecular hydrogen content than the crude oil feedstock coming in. That's a lot of barrels.

As if that's not enough, there's chemical equations that fairly well represent reactions that have remained unchanged since the beginning of time.

Like to make clean hydrogen from plain water, which is an ideal way, it's electrolysis, which is really clean but it takes electricity. Nice to know that clean electricity is already widely available and becoming more so all the time.

According to some pure financial equations, there would be a point where clean, renewable, electricity may become cheap enough for clean hydrogen to undercut refinery hydrogen. Or one particular player may work an exceptional deal on their electricity in some way that might not be available to the general public. Completely free electricity would of course be the ultimate, and with water as raw material there are people who will buy this who would never think of investing in an old bridge into Brooklyn.

Seems promising since at any energy price there will be a margin that could be worked with, but when you do the math, price doesn't end up figuring in at all. It cancels, might as well be free.

Quite simply because the conversion from electricity to hydrogen is not 100% efficient, in addition to the cost of the further processing needed beyond the raw electrons coming in, the hydrogen produced can never compete with the cost of the the raw electricity itself that is used to produce the hydrogen. If what you really need is energy itself more than anything else, you're better off using the electricity straight rather than the lesser amount of energy you get from the amount of hydrogen that it would produce.

For situations where you really, really need hydrogen and nothing else will ever suffice, that's a good reason to continue pursuing this, focusing ideally on the scale needed for that exact market.

I just don't see how it could pay best to try and fool Mother Nature, we still see people trying it all the time anyway :\