One content cluster can cover many angles, but they must all connect to the same main topic so the structure stays clear. For example, a social media marketing cluster can include content about content ideas, posting time, ads, and analytics, because they all relate to the same main topic. If too many unrelated angles are added, the cluster becomes confusing and loses direction. It is better to focus on angles that truly support the pillar page. How can someone know when a cluster is becoming too wide?