Hacker News
Encryption in the 1790s
Article URL: https://hackaday.com/2026/07/23/encryption-in-the-1790s/
Comments URL: https://news.ycombinator.com/item?id=49105252
Points: 2
# Comments: 0
Show HN: GlobeHoppr – find a route between cities using limited-distance jumps
Hi HN,
I built a game where you have to travel from point A to B by hopping through intermediate cities.
Each jump has a maximum range, so you can’t simply select the destination. You need to build a route through cities that are close enough together, using as few jumps as possible.
It sounds straightforward until you need to cross a part of the world where you only know one or two cities. I’ve found that the game exposes a different kind of geographical knowledge: not just knowing where countries are, but understanding how cities connect across a region.
There’s a fixed daily route that everyone can compare, along with unlimited practice games, weekly challenges and multiplayer.
I hope people enjoy it and I would love any feedback!
Comments URL: https://news.ycombinator.com/item?id=49105241
Points: 2
# Comments: 0
Before the theorem prover: verification is older than the alphabet
Article URL: https://amangoel.ai/blog/before-the-theorem-prover/
Comments URL: https://news.ycombinator.com/item?id=49105227
Points: 1
# Comments: 0
Do newer coding models end up training on the AI slop generated by older models?
As old coding models were writing and pushing code to public, does the new coding models train on them because generated code by old coding models were not so good?
Comments URL: https://news.ycombinator.com/item?id=49105219
Points: 1
# Comments: 3
Google AI Studio "Delete" doesn't delete – server chat persists (3 videos)
Article URL: https://www.youtube.com/watch?v=LBQfNbPCxQw
Comments URL: https://news.ycombinator.com/item?id=49105196
Points: 1
# Comments: 2
A pharmacy chain in Vermont implemented AI for efficiency
The World Is to Focused on Quarterly Earnings
Everybody seems to care way too much about what happens in a quarter- nothing material usually, but people make a huge deal about it.
There are two camps in investing: those that think there is a bubble and those that think everything always goes up. There both wrong. Bubbles are inherent with a new wave of technology; each one is different and has its own circumstances. You should not wait for anything because you anticipate one. You cannot time the market well; you should focus on finding companies that either are in the process of developing a moat or adding or transitioning business models, but have not done any of these things yet. You have to analytically figure this out. There is no way to outperform the index by investing in AAPL because you think they have a great brand; so does everyone else.
The camp that thinks everything goes up is right to criticize the people that think there is a bubble because memory sold off, or a company had bad earnings. Technically, no fundamentals have changed, but the broader capital cycle explains why earnings are unsustainable and artificial and will collapse, and demand is high for a new technology because firms do not want to miss out; the initial buzz always comes down, data center backlog is a myth. More on the capital cycle here
This is a long way of saying just buy the index.
Comments URL: https://news.ycombinator.com/item?id=49105189
Points: 1
# Comments: 0
ACR Stealer: ClickFix, Etherhiding, and Stego, Oh My
Article URL: https://discourse.ifin.network/t/acr-stealer-clickfix-etherhiding-and-stego-oh-my/694
Comments URL: https://news.ycombinator.com/item?id=49105172
Points: 1
# Comments: 0
Show HN: A free palm-reading tool that works in the browser
Article URL: https://wishastro.com/tools/palm-reading
Comments URL: https://news.ycombinator.com/item?id=49105149
Points: 1
# Comments: 0
Why AI Needs a "Genie Coefficient"
Article URL: https://www.schneier.com/blog/archives/2026/07/why-ai-needs-a-genie-coefficient.html
Comments URL: https://news.ycombinator.com/item?id=49105141
Points: 1
# Comments: 0
OpenAI ARR in July topped all of Q2
Article URL: https://www.cnbc.com/2026/07/29/openai-cfo-sarah-friar-tells-employees-arr-in-july-topped-all-of-q2.html
Comments URL: https://news.ycombinator.com/item?id=49105139
Points: 1
# Comments: 0
Flume Water Monitor 915 MHz Security Is Pretty Good
Article URL: https://waveformsecurity.com/blog/flume/
Comments URL: https://news.ycombinator.com/item?id=49105136
Points: 9
# Comments: 1
Face Recognition Blocking Glasses Tested
Article URL: https://ipvm.com/reports/face-recognition-blocking-glasses-tested
Comments URL: https://news.ycombinator.com/item?id=49105120
Points: 2
# Comments: 1
IronClaw 1.0 – one secure agent on CLI, Slack and Telegram, one memory
Article URL: https://near.ai/blog/introducing-ironclaw-1-0
Comments URL: https://news.ycombinator.com/item?id=49105110
Points: 1
# Comments: 0
Three Journeys: Anton Chekhov on the Road (2001)
Article URL: https://www.newyorker.com/magazine/2001/10/29/three-journeys
Comments URL: https://news.ycombinator.com/item?id=49105085
Points: 2
# Comments: 1
Overengineered Calculator: Zig and QBE
Article URL: https://tomekw.com/overengineered-calculator-zig-qbe/
Comments URL: https://news.ycombinator.com/item?id=49105076
Points: 4
# Comments: 0
Starter Homes Are Piling Up While Luxury Homes Fly Off the Market
Article URL: https://www.zillow.com/research/starter-homes-price-tiers-36571/
Comments URL: https://news.ycombinator.com/item?id=49104996
Points: 1
# Comments: 0
Do Language Models Flatten Your Business? We Tested Four Real Ones to Find Out
Article URL: https://industrycontents.com/language-models-flatten-brand-positioning/
Comments URL: https://news.ycombinator.com/item?id=49104981
Points: 2
# Comments: 0
Join my robot revolution [video]
Article URL: https://www.youtube.com/watch?v=NwWIubDKEkw
Comments URL: https://news.ycombinator.com/item?id=49104973
Points: 1
# Comments: 1
Persistent State Machines for LLM Attention (Vivado Estimated 0.0267 PJ/Op)
Article URL: https://zenodo.org/records/21694686
Comments URL: https://news.ycombinator.com/item?id=49104964
Points: 1
# Comments: 0
