What is shallow hierarchy?

Example: A team lead inherits a project wiki organized seven levels deep: Company > Division > Department > Team > Project > Sprint > Task. Finding anything requires navigating through five intermediate folders, each demanding a decision about which subfolder to enter. She restructures it into three levels: Team > Project > Pages. Every page is now reachable within two clicks. Documentation usage triples in the first month — not because the content changed, but because the hierarchy stopped punishing people for trying to find things. The information was always there. The depth was hiding it.

This concept is part of Hierarchy and Nesting in the How to Think curriculum.