The author provides an example of the bad "Loading bar writing" but unfortunately not a good example of what they call "Outline speedrunning writing"

pg, who's good at writing essays, does provide a good example of the latter, with https://byronm.com/13sentences.html.

This is the writing process that lead to https://paulgraham.com/13sentences.html. (the https://code.stypi.com/hacks/13sentences?doomed=true URL on pg's blog is a now a dead link. Previous discussion: https://news.ycombinator.com/item?id=6993060).