I'm under the impression, maybe wrongly so, that every other week we saw a primer on some basic CG stuff: Bézier curves, Fourier transforms, Dithering, Tonemapping, ..etc, of themes being fetched from a pool of maybe 10 items that cycle every once in a while but get upvoted because CG stuffs are inherently cool (and they're often well written like this one).
I think I'm gonna make `primersprimer.graphics` to list them or something.
I think it's just that the internet is particularly well suited for explanations on the intersection between mathematics and graphics
Maybe your impression also has something to do with this being the 20th repost of the same link.
The cynic would say primers on basic stuff are easy to create even if you're not really any sort of expert in the area, so people create a lot of them and lots of people who also aren't expert think that's great.
This, however, is pretty damn nifty, esp relative to most 'let me explain to you with prettier pictures what google (now chatgpt) just explained to me' fluff.