Estimates a market with TAM, SAM, and SOM using both a top-down and a bottom-up method, then reconciles the two and states confidence. Use this skill whenever the user needs to size a market or opportunity, says "how big is this market", "what's the TAM", "size this opportunity", "estimate the addressable market", or is about to quote a giant headline number as the answer. Trigger it whenever someone needs a defensible market estimate, even if they don't say "market sizing". Its discipline is that SOM, not TAM, is what actually matters.
