Maybe I have fortunate circumstances, but I have never had this problem. Why? I have customers. And they have desires. Lots of them.
It's true, they may not articulate their desires real well and they may never envision "the next big thing", but when you start hearing the same things over and over again, it's a pretty good bet you're solving a real problem.
It's true, they may not articulate their desires real well and they may never envision "the next big thing", but when you start hearing the same things over and over again, it's a pretty good bet you're solving a real problem.