Our guest is Adam Tooze, a professor of history at Columbia University and the author of "Crashed," which was a New York Times Notable Book of 2018 and one of The Economist's Books of the Year. His timely new book, which he tells us about, mixes finance, politics, business, economics, medicine, and recent world history in order to trace what went wrong -- and why -- during the turning-point year that was 2020. This new book is "Shutdown: How Covid Shook the World's Economy." As was noted by Reuters: "Tooze makes a strong case for looking back and beginning to draw some conclusions.... His focus is the period that started with Chinese President Xi Jinping's public acknowledgement of the coronavirus outbreak on Jan. 20, 2020, and ended with U.S. President Joe Biden's inauguration exactly a year later. The scale and variety of what unfolded in the intervening days remains dizzying. Tooze lucidly organises these events in the book's 300 pages, while maintaining the sweeping perspective that will be familiar to readers of 'Crashed.'" And further, per The New York Times Book Review: "This book's great service is that it challenges us to consider the ways in which our institutions and systems, and the assumptions, positions, and divisions that undergird them, leave us ill prepared for the next crisis."