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I'm learning about topic clusters, and not sure if it's a good use of time/energy, but first want to make sure I understand the concept. Topic Clusters You have a main blog, or marketing web page, such as "The holistic solution for a healthy cat" where you actually sell a thing, let's say an imagine "Monthly Cat Health Everything Box" subscription. Now that page is ranking poorly and already optimized for SEO on "healthy cat" type words. So, you then go in and create a bunch of sub-pages or blogs on dome same website/domain for like Best Cat food for Main Coons, How to get lazy cats to exercise, etc. Each one will a single link up to the main blog or page. Now you're getting Google authority "weight" on "healthy cat" in a bunch of other blogs that all link to the main blog/page. This will increase your topic authority on "healthy cat" and you'll get more organic visits on the main "The holistic solution for a healthy cat" page/blog. Is the above accurate? Or am I failing to understand the concepts of topic authority and topic clusters correctly? Does this work well? Is it a good use of time/energy? Thanks!
-billb