Political scientist Ian Bremmer has a staggering, almost encyclopedic wealth of knowledge around the current geopolitical environment—and lots of opinions to go with it.

Bremmer has authored several books, including the recently published “Us vs. Them: The Failure of Globalism.” His company, Eurasia Group, helps business and government leaders anticipate risk and shape strategies. You may also be familiar with Bremmer from his frequent appearances on news and talk shows or his foreign affairs column at Time Magazine.