https://www.nateliason.com/blog/smart-notes
Good ideas are so simple that they are obvious. The ideas is this book are a perfect example. The principle is easy. Summarize ideas that you’ve read and are interested in, in your own words. Develop cross references as to how it might be useful. Overtime you’ll create your own “web crawler”of ideas and hyperlinks. Helping further writings of yours to write themselves.