Sizes a market by triangulating independent top-down and bottom-up estimates (with a bundled calculator that flags disagreement), then maps demand against supply quality to find attractive, under-served white space. Use whenever the user wants a TAM/SAM/SOM, asks how big a market is, wants to evaluate a new market/segment/geography to enter, or is about to put a single market-size number in a deck without having cross-checked it.
