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Tuesday, June 30, 2026

Hey buddy, Man, you wouldn't believe the stuff on Hacker News today, Tuesday, June 30, 2026. Wild day for AI, privacy, and some other head-scratchers.

AI's Sneaky Side: Claude Marking Code

First off, get this: people figured out that Claude Code is secretly putting invisible marks in the code it generates. Like, steganography! The blog post about it says it's tied to their API URL. What's even crazier, one of the top comments was someone complaining that the *article itself* was probably written by AI because it was super long and repetitive! Talk about irony, right? Another person mentioned that because AI-generated stuff isn't copyrighted, this marking might be a way for them to track usage. Pretty wild.

Here's the link if you want to dive in: Claude Code is steganographically marking requests

New Claude Models Are Out

Speaking of Claude, they also dropped a new model, Claude Sonnet 5. Apparently, it's faster and a bit cheaper than the last one, and pretty good at coding. But a bunch of comments were talking about a bigger worry: are we losing our skills because AI just does everything for us now? Like, someone mentioned they're worried about "societal skill atrophy." Makes you think, right? They also launched "Claude Science" which is supposed to speed up scientific research, but again, the human brain trying to keep up with all this new info is a struggle.

Check out the Sonnet 5 news: Claude Sonnet 5

EU Digital IDs and Big Tech

So, the European Union is pushing these new digital ID wallets, which sounds cool for privacy, but guess who they apparently rely on for the security bits? Google and Apple! People are pretty annoyed about it, saying it just hands more power to the big tech companies instead of making things truly independent. One comment pointed out that the actual cryptography should happen on the smart card itself, not rely on phone makers.

Read more here: European digital ID wallets rely on safety services of Google and Apple

US Labor Share is Super Low

On the economic front, there was a New York Fed article saying that the labor share of income in the US is at its lowest point since WWII. Basically, workers are getting a smaller piece of the pie than ever before. Comments were all over the place, from talking about healthcare costs to how massive capital investment in tech and machinery makes workers more productive, but that productivity gain mostly goes to capital, not wages.

The full article: The labor share of income in the US is at its lowest post-war level

Data Centers Making Schools Conserve Power

This one's a local drama, but it's a sign of the times: A county in Virginia with 37 data centers is asking its schools to "conserve electricity." Can you believe it? The data centers gobble up so much power that the local grid is strained. People in the comments were debating if it's really the data centers or other market issues, but either way, it's wild that schools are feeling the pinch from all this tech growth.

Read about it: County with 37 Data Centers Asks Schools to 'Conserve Electricity'

The "Last People Who Know How It Works"

Finally, there was this cool, nostalgic post called "We Are the Last People Who Know How It Works." It's all about how fewer and fewer people understand the nitty-gritty details of how computers and networks actually function, like knowing how modems "sang" to each other or setting jumpers on drives. It really hits you with that feeling that we're losing some fundamental knowledge. One commenter even talked about their "personal AI detector" going off when they read online stuff, and how it's getting harder to tell what's human and what's not.

Take a trip down memory lane: We Are the Last People Who Know How It Works

Alright, that's the quick download for today. Talk later!

All Stories from Today

Claude Code is steganographically marking requests (thereallo.dev)

Claude Sonnet 5 (www.anthropic.com)

European digital ID wallets rely on safety services of Google and Apple (waag.org)

The US ambassador had Belgian police stop our reporting (europeancorrespondent.com)

Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5 (twitter.com)

The labor share of income in the US is at its lowest post-war level (libertystreeteconomics.newyorkfed.org)

Claude Science (claude.com)

County with 37 Data Centers Asks Schools to 'Conserve Electricity' (www.404media.co)

Nano Banana 2 Lite (deepmind.google)

We Are the Last People Who Know How It Works (unix.foo)

Knoppix (www.knopper.net)

LongCat-2.0, a large-scale MoE model with 1.6T total and 48B Active (longcat.chat)

I ported Kubernetes to the browser (ngrok.com)

US Supreme Court Just Blew Up EU-US Data Transfers (noyb.eu)

Tell HN: Installing Cursor on iOS irreversibly changes your privacy settings (news.ycombinator.com)

Crypto firms have spent $189M so far on 2026 US election, report says (www.reuters.com)

Looking Ahead to Postgres 19 (www.snowflake.com)

Memory Safe Context Switching (fil-c.org)

Exercise intensity influences body composition in healthy older adults (2025) (www.maturitas.org)

Supreme Court upholds broad conception of birthright citizenship (apnews.com)

Leanstral 1.5 (docs.mistral.ai)

Popping the GPU Bubble (moondream.ai)

Google copybara: moving code between repositories (github.com)

Sony erases digital content from libraries (arstechnica.com)

Memoirs of Extraordinary Popular Delusions and the Madness of Crowds (1852) (www.gutenberg.org)

I built a mmWave material classification radar (2025) (gauthier-lechevalier.com)

Have you restarted your computer this week? (taonaw.com)

From brain waves to words: a new path to communication without surgery (ai.meta.com)

Zluda 6 release (run unmodified CUDA applications on non-Nvidia GPUs) (vosen.github.io)

We moved our Bluesky data to Eurosky (waag.org)