This article's single source is not about AI/ML. Eugene Yan's post, "How to Write: Advice from David Perell and Sahil Lavingia," is an expanded version of a Twitter thread that went viral. The title indicates it collects writing guidance from two authors, David Perell and Sahil Lavingia.
Because the source text was not provided beyond the headline and URL, no specific recommendations can be accurately summarised here. The only verifiable facts are the author, the title, and the fact that it expands a viral thread. Readers looking for AI/ML content should note that this source is unrelated.