| Axis | Search | Social feed | LLM attention |
|---|---|---|---|
| What is scored | Pages | Posts | Tokens |
| Objective | Link authority | Predicted engagement | Next-token prediction |
| Temporality | Slow, structural. Changes as the link graph changes. | Live feedback. Re-sorts every round from observed engagement. | Recomputed from scratch for every input. |
| Output shape | Hard ranked cut | Hard ranked cut, plus feedback | Soft blend, weights sum to 1 |
| Failure mode | Gaming the link graph (link farms, spam) | Optimizes a proxy that can drift away from quality and truth | None of that kind, by construction (no objective beyond prediction in the forward pass) |
| Winner-take-most | Authority concentrates on hubs everyone links to | Impressions concentrate on whatever is climbing | Softmax sharpens onto the most relevant tokens, but never to a single winner |
The same score, normalize, allocate machinery is benign when the target is prediction or relevance, and corrosive when the target is engagement. Engagement is a proxy. It stands in for "what the user wants," but it can pull away from it, and the feedback loop amplifies the gap. Search can be gamed and attention is just arithmetic, but only the engagement objective has an incentive to show you something worse for you because it predicts you will click.