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.

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.

Why is the first C++ (m)allocation always 72 KB?

The C++ standard library allocates a 72 KB "emergency pool" for exception handling at program startup, which is lazily initialized and can be disabled or configured via environment variables. This initial allocation is often misinterpreted as a memory leak, but is actually a normal behavior in C++ programs that link against libstdc++.

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.

We do not think Anthropic should be designated as a supply chain risk

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Show HN: Terminal-Style Portfolio on the Internet

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Perplexity Business Fellow and AI developer from New Delhi, India, with expertise in AI, machine learning, and web development. He has created innovative projects like PolyThink, TREAT, and Backdooms, and participated in 20+ hackathons.

An ode to houseplant programming (2025)

https://hannahilea.com/blog/houseplant-programming/assets/larsson.jpg
The author coined the phrase "houseplant programming" to describe tiny software projects built for personal use, not for mass dissemination. These projects are often imperfect, context-specific, and not meant for reuse.

Robust and efficient quantum-safe HTTPS

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Posted by Chrome Secure Web and Networking Team Today we're announcing a new program in Chrome to make HTTPS certificates secure against ...

Switch to Claude without starting over

https://cdn.prod.website-files.com/6889473510b50328dbb70ae6/69a35d251a4d2ce5c88e9179_68dd8377f71c0eb7f1cde2fe438ea9fa_Import.webp
Copy and paste the provided prompt into a chat with any AI provider. It’s written specifically to help you get all of your context in one chat.

The Windows 95 user interface: A case study in usability engineering (1996)

The happiest I've ever been

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The author became a youth basketball coach in January 2020 to fill a void in his life. Coaching brought him happiness and confidence, allowing him to help kids and be in control.

Obsidian Sync now has a headless client

Obsidian Sync offers a headless client for syncing vaults without the desktop app, useful for automated workflows and CI pipelines. It uses end-to-end encryption and supports config syncing and file creation time preservation.

Sub-second volumetric 3D printing by synthesis of holographic light fields

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Researchers developed a method called digital incoherent synthesis of holographic light fields (DISH) for high-speed, high-resolution volumetric printing. DISH uses a rotating periscope and a digital micromirror device to generate high-resolution 3D light distributions without sample rotation.

H-Bomb: A Frank Lloyd Wright typographic mystery

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The author discovers an upside-down "H" on the Unity Temple sign in Oak Park, Illinois, and after researching, finds that the lettering has been removed and reinstalled multiple times, resulting in various orientations of the "H" over the years. The author creates a timeline of the lettering's history, including a 1956 photo showing all three "H"s upside-down, and a 2014-2017 restoration that ...

Block the “Upgrade to Tahoe” Alerts

https://robservatory.com/postimages/_onetime/upgrade_status.jpg
A user found a way to block macOS Tahoe update notifications by using a device management profile, specifically the Stop Tahoe Update project. They modified the profile to block Tahoe update activities for 90 days, and now they can reinstall the profile every 90 days to continue blocking the notifications.

Hardwood: A New Parser for Apache Parquet

https://www.morling.dev/images/gunnar_morling.jpg
Gunnar Morling has released Hardwood, a new open-source Parquet parser for Java that is optimized for minimal dependencies and great performance. It supports Java 21 and newer, and its multi-threaded decoding pipeline allows for faster parsing times compared to existing libraries like parquet-java.

Woxi: Wolfram Mathematica Reimplementation in Rust

https://raw.githubusercontent.com/ad-si/Woxi/main/images/2026-02-12t1501_jupyter.png
Implementing a subset of the Wolfram Language for CLI scripting and notebooks, focusing on speed and efficiency. Woxi runs faster than WolframScript with Rust-based implementation and supports a subset of Wolfram Language functions.

MCP server that reduces Claude Code context consumption by 98%

Context Mode compresses tool outputs by 98% and reduces context window consumption by 72%. This allows users to work 6x longer before context degradation, increasing session time from 30 minutes to 3 hours.

Addressing Antigravity Bans and Reinstating Access

https://opengraph.githubassets.com/f6d9e01ba7f2790fab6f7292e8068c00015fe32459a07bac4122a7b9c86e7846/google-gemini/gemini-cli/discussions/20632
Over the past week, we saw reports from Gemini CLI users experiencing account disruptions. These were the result of a series of Antigravity bans rolled out to address violations of the Antigravity ...

Pigeons and Planes Has a Website Again

https://www.pigeonsandplanes.com/_next/image?url=https%3A%2F%2Fcdn.sanity.io%2Fimages%2Fpu3h3rl5%2Fproduction%2Fce09cce65e4943de871e5fac555e2be007d8a84f-4000x2250.jpg%3Fw%3D2560%26q%3D100%26auto%3Dformat&w=3840&q=100
Pigeons & Planes is all about music discovery, supporting new artists, and delivering the best music curation online and IRL. We're always listening. Pigeons & Planes is all about music discovery, supporting new artists, and delivering the best music curation online and IRL. We're always listening. Pigeons & Planes is all about music discovery, supporting new artists, and ...

Our Agreement with the Department of War

https://images.ctfassets.net/kftzwdyauwt9/6t70beUwBvhVWleb7B268I/57f6d18653e0f62027e90355d7a57243/Microsoft_Oct_Hero_1x1.png?w=3840&q=90&fm=webp
We reached an agreement with the Pentagon for deploying AI systems in classified environments with guardrails to prevent misuse. Our approach includes a cloud-only deployment, safety stack, and OpenAI personnel in the loop to ensure responsible use.

Show HN: Now I Get It – Translate scientific papers into interactive webpages

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Upload a scientific PDF and get back a shareable, interactive web page that explains it in plain language.

Verified Spec-Driven Development (VSDD)

SpacetimeDB ThreeJS Support

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SpacetimeDB 2.0 allows real-time Three.js projects with game logic running directly in the database, streaming state changes to clients. It enables low-latency, synchronized 3D state for multiplayer games, editors, and virtual worlds with a generous free tier and paid tier for $25 a month.

The Science of Detecting LLM-Generated Text

Qwen3.5 122B and 35B models offer Sonnet 4.5 performance on local computers

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New evidence that Cantor plagiarized Dedekind?

https://www.quantamagazine.org/wp-content/uploads/2026/02/JosephHowlett-contributor.jpg
Demian Goos, a mathematician and journalist, discovered a lost letter from Georg Cantor's estate that proved Cantor's famous 1874 paper on infinity was an act of plagiarism. The letter, believed to be lost during World War II, showed Cantor had collaborated with Richard Dedekind on the paper.

Iran's Ayatollah Ali Khamenei is killed in Israeli strike, ending 36-year rule

https://media.npr.org/assets/img/2024/04/30/james-hider_sq-f454ad8e79f21fd9783ea4ed1873c80d800d36bf.jpg?s=100&c=85&f=jpeg
Iran's supreme leader Ayatollah Ali Khamenei was killed in Israeli attacks with US support. He ruled Iran for 36 years, known for his anti-US and anti-Israel stance and brutal suppression of protests.

Intelligence is a commodity. Context is the real AI Moat

https://substackcdn.com/image/fetch/$s_!cSPO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5fe7fce4-a250-4e71-9859-097744600074_1024x559.png
The author attended an AI meetup where they discussed AI's impact on society and work, and the potential for an AI-first society where humans are no longer necessary. They believe humans will still find happiness in community and personal activities.

The whole thing was a scam

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Altman signed a deal with Amodei after publicly supporting him, while rejecting similar terms from Anthropic due to campaign contributions. This move was seen as punitive and favoring Amodei over Anthropic.