Part of the idea is that if it takes more than 3 or 4 "why"s to get to some really fundamental business goal (i.e. "Because I want to make more money"), then it

Part of the idea is that if it takes more than 3 or 4 "why"s to get to some really fundamental business goal (i.e. "Because I want to make more money"), then it might not be a problem worth solving in the first place