Your Brain Needs Sleep to Flush Out Crap

First up, there was this MIT article talking about how when you don't get enough sleep, your brain can't properly flush out all the waste fluid. And that's why you get those "attention lapses." It's like your brain's plumbing gets clogged.

Cool thing: Someone in the comments said this might explain why their autistic kid has more energy at night – maybe that's when their brain is finally getting around to its deep cleaning! Also, people were pointing out how crazy long doctor shifts are, and how that must mess with their attention.

John Carmack's Take on Mutable Variables

Then, the legendary John Carmack (you know, Doom, Quake, Oculus guy) was tweeting about mutable variables. Basically, variables that you can change after you set them. It sparked a huge debate.

Cool thing: A big part of the talk was about how JavaScript's `const` keyword is super confusing. Like, `const myArray = []` means you can't re-assign `myArray` to something else, but you totally *can* still do `myArray.push(x)` and change the array itself. Wild, right?

OpenAI's Shady Money Moves

The New York Times dropped an article about how OpenAI does these super complex, circular deals to keep raking in billions. Sounds like some pretty fancy financial footwork to boost their valuation.

Cool thing: People in the comments were lamenting how Google Search has become "99% crap" and are hoping someone comes along to really innovate search engines. Also, some thought Nvidia might be looking to get more into AI services, given all their investments.

AMD Might Be Getting Into ARM Chips

Big hardware news: AMD could be jumping into the ARM chip market with something called a "Sound Wave APU" made on a new 3nm process. This is a pretty big deal since AMD is usually all about x86 processors.

Cool thing: The comments mentioned AMD actually acquired a company (Xilinx) that made ARM chips, so it's not totally out of left field. And some folks were dreaming about chips that could just run both ARM and x86 code directly for max efficiency.

Running AI Coding Assistants Locally

There was an "Ask HN" thread where people were sharing their setups for running open Large Language Models (LLMs) and coding assistants right on their own laptops. No cloud needed!

Cool thing: A lot of people are rocking Mac Studio M4 Max machines with a ton of RAM (like 128GB!) because they're powerful but stay quiet. They're using tools like Ollama and Open WebUI. The big draw is keeping all their code and data private, not sending it off to some company's servers.

Just Use a Button, Seriously

This web dev article was a classic rant: if something is clickable, for the love of god, just use a proper HTML `` or `` tag. Don't try to hack a `div` or `span` into acting like one, because it breaks accessibility and is just a pain.

Cool thing: Comments were full of people's shared pain, especially dealing with designers who want custom elements that defy basic web standards. And yeah, a real button is way more robust if your JavaScript decides to take a coffee break.

Cool Math Art: Strange Attractors

Someone did a "Show HN" on "Strange Attractors," which are these super cool mathematical systems that create chaotic but beautiful, patterned visuals. Think fractals but with a twist.

Cool thing: One commenter mentioned that there are actually Eurorack modules (for electronic music) that use strange attractors to add "unpredictable-but-cyclical movement" to sounds. Another person said the visuals reminded them of starling murmurations – those huge flocks of birds moving in crazy patterns.

Alright, that's the gist! Gotta run, talk later!