Clayton Magleby Christensen was an American academic and business consultant born in Salt Lake City in 1952. He is best known for developing the theory of disruptive innovation, which has been described as the most influential business idea of the early 21st century. Christensen introduced the concept of disruption in his 1997 book The Innovator's Dilemma, which became foundational to how businesses and investors understand technological change and market competition. Christensen's work earned him significant recognition in the business world. The Economist called him the most influential management thinker of his time, reflecting the widespread adoption of his ideas across industries and academic institutions. He held the position of Kim B. Clark Professor of Business Administration at Harvard Business School, where he contributed to business education and research. Christensen passed away in Boston in January 2020.