This document discusses using nested keywords to optimize video discoverability on YouTube. It recommends saying nested keywords in the video content, including them in the title, tags, description, playlists, channel keywords, and about section to target those keywords. Using nested keywords throughout the video and channel metadata can help videos rank higher and gain more views organically by targeting "bigger picture keywords". The document also discusses becoming a content hub by centralizing branded, curated, and user-generated content around a specific topic to be seen as a authority on that topic.