The bookobserves that failures are common, and it often happens because the risk of unpredictability and uncertainty is often ignored. To consider the risk of these uncertainties, that is also proven through game theory, patterns should be analyzed and the connectivity of the parts of a complex system should be ensured. Also, book says appropriate outlooks and positive attitudes to a system on the emphasis of innovation and change rather than stability is needed.The author thinks educated guesses and building the capacity to handle failures is more important.