An entire life what's created from nothing in the span of a single year. The concept of Kaizen began to build mainstream following with the works of Masaki Imai, a Japanese organizational theorist and consultant. One percent daily improvements for an entire year will result in an almost 38x improvement by the end of the period. If you invest $1000 and generate a 15% annual return, you'll have $1 million after 50 years.