Book excerpt: The recognition is growing: truly addressing the problems of the 21st century requires going beyond small tweaks and modest reforms to business as usual—it requires "changing the system." But what does this mean? And what would it entail? The New Systems Reader highlights some of the most thoughtful, substantive, and promising answers to these questions, drawing on the work and ideas of some of the world’s key thinkers and activists on systemic change. Amid the failure of traditional politics and policies to address our fundamental challenges, an increasing number of thoughtful proposals and real-world models suggest new possibilities, this book convenes an essential conversation about the future we want.