Rebecca Costa is an engaging and deeply knowledgeable trendist and thought leader whose first book, The Watchman’s Rattle, reveals a game-changing message regarding our ability to thrive in the complex world we have created. In a fascinating and accessible read, Costa clearly posits that the escalating complexity of our personal lives, technological capabilities, and government policies have led to conditions—worldwide recession, global warming, pandemic viruses—that have outpaced our ability to manage them. After indentifying and articulating this dynamic, Costa offers an opportunity to address it. She reveals scientific evidence that the human brain can be retrained to comprehend, analyze, and resolve massively complex problems. We can give ourselves brain tune-ups, cultivate “insight-on-demand,” and make a significant impact on the seemingly intractable challenges we face today.