Building topical authority in practice means covering a subject in depth and breadth before moving to the next one: map out every real question a buyer or researcher asks about the topic, publish direct answers to each, and interlink them tightly so both search engines and AI crawlers can see the cluster as a coherent whole. One deep, interlinked cluster of twenty pages typically outperforms twenty unrelated pages scattered across different topics.
Consistency over time matters as much as volume — a cluster that keeps getting updated signals ongoing expertise, not a one-time content push.