Earlier quoted context omitted.
Disagreed with 5, it's too prescriptive. Lots of great writers use progressive disclosure to keep people hooked Being unselfish also helps with building great products. Reminds me of this article, treat your reader like a customer: https://www.productlessons.xyz/article/improve-business-writ...
I don't think progressive disclosure applies in the cases the author is discussing. Slide 8: "Most of the writing in the world is for information." Readers looking for information aren't interested in being teased to keep reading. That's a recipe for 'unhooking' them. They want to know what the author thinks they should know. No pussyfooting.
FWIW plenty of informational books pussyfoot just to get a bigger piece out, there is fluff, anecdotes, tangents, but humans understand through storytelling, and ultimately that is usually a good way to go about sharing ideas.