How we keep content forever
Threads are a topic. They represent a content from a source, wholly. For example, it can be an article on Medium.com, a post on Reddit, or a forum thread on Hardwarezone.com.
Threads can get long. So we break threads up into bite size pages, and we call them Page
Websites change and evolve. We want to keep the original copy, and track changes over time. It is why we have Snapshots for each Page on a Thread These snapshots capture a version of a Page in that very moment.