Right now, the world is experiencing a profound break from the orthodoxy of globalisation. The US has gradually made moves to withdraw itself from the global trading system, China’s President Xi Jinping has been advocating self-reliance for his nation, and EU leaders are talking up the idea of strategic autonomy from the US. It might all seem like a modern surprise, but in fact, the temptation to face inward is an ancient need.

• GUEST: Ben Chu, Policy and Analysis Correspondent, BBC Verify
• PRODUCER: Ali Benton