Exploring the rise and fall of global power from the mid-nineteenth century, this book tracks the long and interrelated trajectories of the most serious challenges facing the world today. Although at first the urgency of the coronavirus outbreak in 2020 seemed to take precedence over other global problems such as socioeconomic inequality and climate change, it has ultimately exacerbated these issues and created opportunities to address them boldly and innovatively. A Brief History of Now provides a bird-eye view of world hegemony, economic globalization and political regimes as they have evolved and developed over the last two hundred years, providing context and insights into the forces which have shaped the Western world. Presented in an accessible and engaging narrative, the book addresses key contemporary challenges and explores the repercussions of a technological revolution, the potential instability of democracy over the coming years, and the urgent struggle to tackle climate change. With his book, Diego Olstein helps to answer pressing questions about our world today and provides a roadmap for analysing future trajectories.