HMW proponents say this form of questioning can be applied to almost any challenge—though it works best with ones that are ambitious yet also achievable. Brown says it doesn’t work as well with problems that are too broad (How might we solve world hunger?) or too narrow (How might we increase profits by 5 percent next quarter?). Figuring out the right HMW questions to ask is a process, Brown says; “You need to find the sweet spot.”