The more overlap between you and your early users, the faster you'll know if this is a real pain or just a minor inconvenience. But if your product solves a real problem, people will pay — even if it's ugly. Related: The One Simple Task That Will Help Your Startup SucceedBuild from conviction, not theoryWhen you build for yourself, you don't need to fake insight. You don't need permission. You don't need a grand strategy.