What you do know […] is what pains you on a regular basis. If you stop trying to solve everyone else’s problems, and starting figuring out how to solve your own, you’ll probably come up with an invention, solution or service which would resonate with other people who have the same problem. The obvious next questions is, How many people have this same problem? That’s your market. It’s probably a niche market, but that’s fine. Focus on it.
