Build a defensible TAM, SAM, and SOM with both top-down and bottom-up math you can show investors.
## CONTEXT Investors discount inflated market numbers instantly. This prompt builds a credible market size from two directions, top-down from industry data and bottom-up from unit economics, then reconciles them. It is designed to produce numbers a founder can defend in a pitch, not a fantasy trillion-dollar TAM. ##…
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