Systems thinking underpins the quality revolution of the 1980s that still goes on today. Widely-ignored in the USA, the father of systems thinking, W. Edwards Deming, was invited to Japan to lecture on it in 1950. Almost as a direct result came the Japanese economic miracle and industrial dominance of the world of the late 1970s and 1980s. Only then did Americans start taking their prodigal son seriously. Since then Peter Senge and others have championed Systems Thinking.