Superbly written and inspiring article at Forbes about the health challenges faced by highly regarded author and Harvard professor Clayton Christensen. Christensen’s influential book, The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail, is a must read for every business person, as it captures and explains the essence of the process of innovation, as well as its impact on competition. (I found this book to be far more useful in the context of developing and/or evaluating business strategies and investment opportunities than Michael Porter’s Competitive Strategy