It took about four years on average for the good-to-great companies to clarify their Hedgehog Concepts. Like scientific insight, a Hedgehog Concept simplifies a complex world and makes decisions much easier. But while it has crystalline clarity and elegant simplicity once you have it, getting the concept can be devilishly difficult and takes time. Recognize that getting a Hedgehog Concept is an inherently iterative process, not an event.