Ideas are like traffic lights. People tend to follow the direction in which the thought is going when the lights green and the path is clear. When the path presents obstacles in the way of the idea, the light turns red and the breaks are applied.
Any path or idea worth pursuing, is going to have plenty of red lights and detours that are undesired. The challenge is accepting the time spent on the travel and enduring the ride. This is what separates an achievement from just another red light!