We seem to be living through a difficult time. Hot wars are raging across Ukraine and the Middle East. Ultimately, the cold clash of the United States and China might well join them. Across the world, anger and ignorance scream across our screens. And here at home, the recent disruption of most of our lives by some angry malcontents, exposed the fragility of much of what we take for granted. 1930 was also a difficult year. The crash the previous October was sundering confidence, trust and banks. The collapse in trade, activity and jobs was unprecedented. The length and depth…