Why is humanity failing to solve the climate crisis, to deal effectively with pandemics, to curb the power of multinational corporations and to create a more equal, just and sustainable world for everyone? This book, based on a series of video lectures on YouTube, provides an answer: it is because of the political division of the world into some two hundred separate nation states, each vying for its own interests, and with no-one looking at what is good for the world as a whole. The authors argue that the only way to solve global problems and to truly bring about global justice, is for everyone to come together in one, universal, global democratic system. This is a radical, inspiring and provocative book - a must-read for everyone who believes that a better world is needed.