I actually come here for explanations like these from from experts and HN lurkers instead of reading the pop-internet article that comes up first on google.

I know what both a mutex and a spin lock are because I’m a developer myself but very much enjoy having my mind blown by someone on here who may have actually written the scheduler for Windows or Linux or be an expert of some sort.

Real experts aren't waiting on the internet to be the first response to lazyweb: they publish blog posts, papers, books, and tomes of knowledge, which are peer-reviewed and revised. Experts who have something valuable to add will eventually speak up, without being asked. I guarantee that answers to such low-quality questions primarily get low-quality responses. It's the Tragedy of the Commons of discussion sites.

I recently had a beginner question about actors and persistence addressed by carl hewitt here. I think you underestimate the kindness of extremely knowledgeable people ( and HN )

It's real easy to, even not being lazy, not know how to ask the question right to be able to find those tomes of knowledge.

Since it's covered quite simply and very visibly in the article: yea, this is one ELI5 I'd prefer to not exist. At least skimming TFA is a reasonable pre-requisite IMO.

When the article assumes reader knowledge (especially very specific stuff) tho... there are quite a few very good responses here, it'd be a shame to reduce them. There are some extremely knowledgeable people lurking around here, and they're sometimes doing so for this kind of reason - to spread the knowledge. Plus context-specific Q&A can be far more effective than random googling / other articles / etc, as a learning tool.