In this discussion, Mark Johnson, The Economist's Beijing correspondent, shares frontline insights on China's unprecedented lockdown to combat the coronavirus outbreak, addressing public reactions and government strategies. Meanwhile, Matt Steinglass highlights Finland's innovative Housing First policy, showcasing its success in tackling homelessness in affluent nations. Benjamin Sutherland introduces a groundbreaking heart-print identification technology, discussing its mechanics and ethical implications. Together, they dive into pressing global challenges and innovative solutions.