Clayton Christensen, a renowned management thinker and Harvard Business School professor, has passed away at the age of 67. He was best known for his theory of disruptive innovation, which he introduced in the 1990s and explained in his book 'The Innovator's Dilemma'. Christensen's work had a significant impact on Silicon Valley and the business world, influencing leaders such as Steve Jobs, Jeff Bezos, and Andy Grove. He also applied his ideas to self-help and spiritual topics, writing about how to measure one's life and find purpose.