Content management, if done right, bears parallels with quantum physics. (Please stick with me: I will keep this high-level, and only maintain the analogy for a paragraph.)
The principles of quantum physics are confusing. Basically, though, they relate to the smallest elements that can be described, which have a subtle property: their actual state (where they are and what they are doing) can only be determined – is, in fact, only realised – by the presence, the contextual forces, of the elements around them; those they interact with. A single particle can be in multiple places at once, in different phases, until something needs to react to its presence (e.g. it is observed).
When developing (or customising) content systems, we need to give our information structures the granularity of quantum particles, and the flexibility of uncertainty.
Why quantum content?
One of the base principles of any CMS worthy of the name is that content is separated from its presentation. An element of content is reusable. In order to achieve proper reusability, elements of content need to be the smallest that can be formed whilst maintaining identity. Read more of this post