/sentences/meaning
Structure earns citation.
Good ideas travel farther when a system can retrieve and quote them cleanly.
Tags
A page becomes more useful when another system can lift the right part without losing the point.
That usually depends less on clever wording and more on structure, boundaries, and entity clarity.
What this changes in practice: write each page so search engines, answer engines, and human readers can all find the same core claim without guessing.