“As technology moves, we have left shells and gold and copper coins and the like behind us. And we’re now slowly getting out of notes and physical money altogether into the digital world,” Cecilia Skingsley said at the International Monetary Fund and World Bank meetings.

Skingsley, head of the Bank for International Settlements’ Innovation Hub, was one of many to explore the consequences of the diminishment of cash at the annual meetings last week. IMF chief Kristalina Georgieva compared