Nobody is his own target group. Well, almost. Eat own dog food ... etc. But sticking to this approach limits severely size of target population. Throwing mud

Nobody is his own target group. Well, almost. Eat own dog food ... etc. But sticking to this approach limits severely size of target population. Throwing mud at the wall and finding what sticks. It has one major disadvantage. It costs in time and money. Any solutions? Maybe Customer Development and Agile. Maybe something else. The question is still open.