Factor 4 — Content saturation is per-query, NOT per-niche

Claim: Content saturation occurs when the supply of content for a query exceeds demand — Google has an abundance of good answers and does not need another generic guide. Best understood as a per-query, per-intent condition rather than a whole-"niche" condition.

Diagnostic (practitioner consensus, no authoritative measurement):

• SERP composition. If the first page is dominated by large entrenched brands (e.g., Investopedia / NerdWallet for finance) and the results all answer the query thoroughly → saturated. If results are thin, off-intent, or dominated by forums / low-quality pages → opening.
• Long-tail difficulty. One practitioner reported even long-tail keywords in "home workout equipment" scoring difficulty above 65 — a directional sign of saturation.
• The "content saturation index" (raw result counts) is a weak heuristic — do not rely on it.

Honest caveat: Several credible practitioners argue saturation is overstated — semantic search means a newcomer can win on unaddressed sub-intents, question-based queries, and audience slices even in "crowded" spaces. The real test = whether profitable, winnable sub-queries remain. A query-level, not market-level, judgment.

Confidence: Industry-consensus.

Why this matters for Candid: The widget should NOT use category-level "saturation" as a difficulty input. Use SERP composition as a per-query observation — the live-counting task from the capture-layer brief (CAN — "Search your main service + city. How many businesses appear above you?" (live counting task)) directly addresses this.