Minister of External Affairs of India, Subrahmanyam Jaishankar speaks during a bilateral meeting in Jakarta, Indonesia.

India's external affairs minister, representing the world's largest democracy and second-most-populous country, shared with me a concept that he believes captures the geopolitical moment.

Subrahmanyam Jaishankar, one of the keenest international thinkers of our uncertain times, reckons that the United States, after years of unrivaled global leadership, is in a state of "strategic contraction." He sees this as one of four factors shaping our times.