How to write a book in 6 Days

I just bought this book on Amazon and it is already helping me with with a pain point I have - writing quality content, quickly & consistently. Biggest surprise, the author wrote it in 6 consecutive nights using the methods in the book.

Thought I'd share here with the Indie Hacker fam: https://www.amazon.com/Ron-Lieback/e/B08GL4BFNQ

Anyone else struggle with writing quality content, quickly and consistently?