Coined, 2026
Vector Dilution
Vector Dilution is why your most complete page can be your least differentiated: covering everything averages it toward the consensus.
"Depth makes you complete. Information gain makes you necessary."
A page that covers every subtopic gets one whole-page embedding, and that average is dominated by the ground every competitor shares. Genuinely original sections get pulled toward the center of the ranking set, so a thorough, expert page gets absorbed into the AI answer instead of cited by it.
The averaging effect is established in information retrieval. What SEO was missing was a name, a mechanism and a way to measure it on your own pages, plus 2 ways to reverse it.