Hello! What determines whether crises lead to major social change? We talk to two historians about lessons from the past. Walter Scheidel explains his argument that economic inequality has only ever been significantly reduced by catastrophes and war. Then Theda Skocpol discusses the impact that ideas and social movements can have.

Plus ParkRun founder Paul Sinton-Hewitt on the story behind its phenomenal success.

Hosted on Acast. See acast.com/privacy for more information.