Most companies fail to cross the chasm because, confronted with the immensity of opportunity represented by a mainstream market, they lose their focus, chasing every opportunity that presents itself, but finding themselves unable to deliver a salable proposition to any true pragmatist buyer. The D-Day strategy keeps everyone on point—if we don’t take Normandy, we don’t have to worry about how we’re going to take Paris. And by focusing our entire might on such a small territory, we greatly increase our odds of immediate success.