How to talk to anyone, and why you should

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The author reflects on the decline of casual conversations with strangers in public spaces due to social anxiety and overreliance on technology. They argue that this loss of human interaction is a significant issue affecting people of all ages.

Waymo blocking ambulance during deadly Austin shooting

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Big Breakfast Alters Appetite, Gut Health

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A study found that higher-fibre and higher-protein breakfasts helped adults with overweight/obesity lose weight. The higher-protein diet suppressed appetite more effectively, while the higher-fibre diet improved gut health.

Psychology: Who dont maintain many close friends, learned independence too early

https://www.bolde.com/wp-content/uploads/2026/02/shutterstock_1789733465-scaled.jpg
I remember being twelve and standing on a chair in our kitchen, trying to reach the top shelf. There was a step stool somewhere, but it felt faster not to look for it. Faster to climb. Faster to stretch. Faster to figure it out myself. That was the rhythm of my childhood — just handle it. If something needed to be done, do it. If something felt confusing, sort it out internally. If something ...

Are the Mysteries of Quantum Mechanics Beginning to Dissolve?

https://www.quantamagazine.org/wp-content/uploads/2026/02/Qualia-Quantum-Machanics-cr-Michael-Waraksa-Lede.webp
Physicist Wojciech Zurek's book Decoherence and Quantum Darwinism offers a new explanation for how quantum mechanics transitions to classical physics. His theory, called quantum Darwinism, suggests that decoherence and entanglement lead to a unique classical world emerging from quantum probabilities.

Ghostty – Terminal Emulator

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Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.

Why does C have the best file API

The author rants about how programming languages neglect file access, requiring manual parsing and serialization. They praise C's memory mapping feature for efficient binary data access.

When does MCP make sense vs CLI?

The author claims MCP is dying due to its lack of real-world benefits and argues that CLIs are simpler, faster to debug, and more reliable. They believe CLIs are a better abstraction for LLMs to interact with tools.

Long Range E-Bike (2021)

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The user built a custom 10S17P e-bike battery pack with 170 Samsung E35 cells, increasing the range of their S-Pedelec from 45 km to 180 km. The pack was designed to be safe and efficient, with a capacity of 2150 Wh, and the user hopes to inspire others to consider e-bikes as a commuter car replacement.

Decision trees – the unreasonable power of nested decision rules

https://mlu-explain.github.io/assets/ogimages/ogimage-decision-tree.png
We're farmers with a new plot of land and we're using a Decision Tree to classify trees as Apple, Cherry, or Oak based on Diameter and Height. We've created a tree with a root node at Diameter ≥ 0.45 and subsequent splits at Height ≤ 4.88 and Diameter.

Chorba: A novel CRC32 implementation (2024)

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
A novel method for calculating CRC checksums efficiently without lookup tables or hardware support is proposed, achieving 100% throughput increase over current state of the art. This approach outperforms or matches hardware-accelerated solutions on x86_64 and ARMv8 processors.

Operational issue – Multiple services (UAE)

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Why XML tags are so fundamental to Claude

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Setting up phones is a nightmare

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User helped parents set up new Android devices, minimizing data collection and telemetry by disabling tracking, uninstalling bloatware, and replacing default apps. They're seeking advice on phones with fewer privacy-invasive tactics and hardware that doesn't collect data excessively.

Flightradar24 for Ships

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How the Government Deceived Congress in the Debate over Surveillance Powers (2013)

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Senator Ron Wyden questioned Director James Clapper about NSA surveillance, and Clapper claimed "no" collection of data on millions of Americans. Clapper used a narrow definition of "collect" to justify his answer, which is different from the public's understanding.

Microgpt explained interactively

https://growingswe.com/blog/microgpt/opengraph-image?16ed498263341a16
Andrej Karpathy's 200-line Python script trains a GPT model from scratch, learning statistical patterns in human names and generating plausible new ones. The script's core loop involves tokenizing, embedding, attending, computing, and predicting the next token, with the model learning to minimize cross-entropy loss through backpropagation and RMSNorm normalization.

Python Type Checker Comparison: Empty Container Inference

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Type checkers have different strategies to infer types for empty containers in Python. Some type checkers like Pyright, Ty, and Pyre infer the type as list[Any] or dict[Any], which provides the least amount of type errors but sacrifices type safety.

Programming in K

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Gzpeek: Tool to Parse Gzip Metadata

gzip streams contain metadata like operating system, file name, modification time, and compression flags that can provide hints about the compressor and file. However, due to inconsistent implementations, these metadata cannot be relied upon to determine the source OS or other information.

Microgpt

http://karpathy.github.io/assets/microgpt.jpg
The user created a simplified 200-line Python script called microgpt that trains and infers a GPT model from scratch, showcasing the core algorithmic essence of large language models. The script demonstrates how the model learns statistical patterns from a dataset and generates new plausible-sounding documents, such as names, by predicting the next token in a sequence.

Interview with Øyvind Kolås, GIMP developer (2017)

https://www.gimp.org/news/2026/02/22/%C3%B8yvind-kol%C3%A5s-interview-ww2017/%C3%98yvind_Kol%C3%A5s.jpg
yvind Kolås is the maintainer of GEGL and babl, color engines of GIMP. He was involved in GIMP's project after fixing a patch for GIMP's transform tools.

Lil' Fun Langs' Guts

https://i.lede.me/?title=Lil%27+Fun+Langs%27+Guts&lede=What%27s+inside+them%3F+Do+I+need+my+pancreas%3F&author=taylor.town&date=2026.03.01
The user discusses various aspects of programming languages, including lazy evaluation, curried languages, bootstrapped compilers, and type inference, with a focus on the design and implementation of small compilers. They also touch on topics such as error handling, parsing, and optimization, as well as the trade-offs between different design choices in language implementation.

Show HN: Audio Toolkit for Agents

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A suite of 25 audio processing tools is exposed via DeclarAgent for use in Claude Code. The tools are installed and tested using Python and Pytest, with a self-contained binary built using PyInstaller.

10-202: Introduction to Modern AI (CMU)

The course provides an introduction to modern AI systems, focusing on machine learning methods and large language models. Students will learn to implement a basic AI chatbot through programming assignments and quizzes.

New iron nanomaterial wipes out cancer cells without harming healthy tissue

https://www.sciencedaily.com/images/1920/cancer-cell-self-destructing.webp
Scientists at Oregon State University created a new nanomaterial that targets cancer cells by sparking two chemical reactions, overwhelming them with oxidative stress while sparing healthy tissue. The material, built from an iron-based metal-organic framework, demonstrated strong toxicity to cancer cells and complete tumor regression in preclinical experiments.

I built a demo of what AI chat will look like when it's "free" and ad-supported

https://99helpers.com/images/main.jpg
A satirical AI chat demo showcases every monetization pattern imaginable, including banners, sponsored responses, and freemium gates. The tool is an educational tool to help marketers and developers understand AI monetization, but it's not an actual ad network.

South Korean Police Lose Seized Crypto by Posting Password Online

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South Korea's National Tax Service lost $4.8 million in crypto assets after publishing a press release with wallet seed phrases. The incident highlights the risks of full self-custody in crypto and the need for better understanding of virtual assets by law enforcement.

Working with memories can reduce fear of failure

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Aromatic 5-silicon rings synthesized at last

https://cen.acs.org/content/dam/cen/104/02/09/WEB/News---Aromatic-rings-made-from-silicon---342044.jpg
Two research teams independently synthesized pentasilacyclopentadienide, an all-silicon five-membered ring molecule. This molecule has potential applications as a ligand for catalysts and materials, and its synthesis challenges bonding theory and provides new understanding of silicon chemistry.