RT @Snek_Snack: Literally has all the money in the world and has not resolved a single humanitarian issue

WATCH: @edzitron absolutely destroy the AI narrative by explaining these AI companies have no way to be profitable. (My personal theory is Elon Musk is rushing to take SpaceX public because he plans merge with Dario's Anthropic as a way to destroy Sam Altman)

This is the best explanation of the AI bubble I've ever heard! 🤣 An instant classic of the insanity @atmoio

a professor at Illinois got frustrated with existing systems programming textbooks so he started a wikibook project and had students help write it it covers C, processes, threads, synchronization, memory allocation, networking, filesystems, scheduling and security all in one free PDF it eventually became the official textbook for CS 241 at UIUC with more than 1000 students taking the course every year written for people who already know how to code and want to understand what actually happens underneath

Uber stopped hiring to save money. By April they'd blown the entire AI budget anyway. 5,000 engineers on Claude Code. Up to $2,000 a month. Each. Now the COO can't tell if any of it worked. A salary is a number you control. Tokens are a number that never stops. They didn't cut the cost. They rented it from Anthropic - forever.

Required reading if you've ever wanted to understand SIMD beyond "it makes things fast." mcyoung.xyz/2023/11/27/simd-…

MICROSOFT CANCELED CLAUDE CODE! IT COST TOO MUCH. Major tech companies are confronting the steep reality of AI inference costs as the era of heavy subsidies appears to be ending. Microsoft is canceling most internal licenses for Anthropic’s popular Claude Code tool by June 30, 2026 less than six months after rolling it out broadly to engineers primarily due to escalating token-based expenses, while shifting teams toward its own GitHub Copilot CLI. This mirrors broader pressures: Uber’s CTO revealed the company had already exhausted its entire 2026 AI budget in just four months thanks to heavy Claude usage among thousands of engineers (with individual monthly costs often hitting $500–$2,000), and GitHub is transitioning Copilot to usage-based billing with higher per-token rates starting June 1st. The reality is good enough AI will expand and constantly get better removing the oxygen of the most expensive.

dude... this is brutal

RT @GotDunks21: Just saying

Want to learn how to write an operating system kernel from scratch? I have a deep-dive post that walks through it end to end. I'm resurfacing this one to mark the relaunch of my website on Pageforge, the Bazel-native SSG I posted about yesterday. The site footer now proudly says "Built with Pageforge", and this article is one of the best things the old site shipped. It's a minimal time-sharing kernel on RISC-V, written in Zig, running on top of OpenSBI. Most "write your own OS" tutorials are C on x86. This one isn't, and that turned out to make the whole thing easier to reproduce on your own machine: Zig needs no install, RISC-V is genuinely simpler than x86 to reason about, and OpenSBI handles the firmware layer so you can focus on the kernel. The core trick is fun. The kernel runs in S-mode, user threads run in U-mode, and a periodic timer interrupt fires the context switch. The mechanism: when the interrupt handler returns, it restores registers from the stack. If the handler swaps the stack pointer before returning, you wake up in a different thread. That's it. That's the whole context switch. The post walks through everything end to end: SBI setup, the S-mode trap handler, the prologue/epilogue assembly, the scheduler, system calls from user threads, and a working build that boots in QEMU and shows three threads time-slicing in real time. This one hit #1 on Hacker News when it went out and the GitHub repo is one of my most starred. If you missed it the first time, now's a good moment to give it a read. Full post: popovicu.com/posts/writing-a…

When it comes to in-depth technical write-ups, one of my favorite authors is @abhi9u. And this time, he has crafted a beautiful article, "Virtual Memory: A Deep Dive into Page Tables, TLBs, and Linux Internals." Go, give it a read. blog.codingconfessions.com/p…

An awesome regex visualization tool regex-vis.com