Also:

> A data structure is a linked list, a red-black tree, or another data structure.

Seems we have a recursive definition here

It's a joke, like about half of the article. There's some non-humor value to the whole thing too, though, if you get far enough in.

I didn't realize it was a joke until I saw the author's newsletter about it today. Should've caught it earlier, though, given how different it is from his usual high quality.

https://buttondown.email/hillelwayne/archive/new-essay-and-t... seems to be the newsletter in question; I am not subscribed despite fitting the demographics on a number of axes.

Indeed. It's generally an interesting newsletter, covers some interesting topics.