Adebayo,

America and the West will continue to lead the world for the seeable future. Democratic countries will continue to dominate because they are more efficient.

China is an example of how an authoritarian administration can continue to mismanage without the risk of being voted out of office. And best of luck converting American dollars (or UK pounds) into renminbi anytime soon.

By being less aligned and more transactional, the BRICS and medium-sized powers have more say in the world. Not terrible.

The adverse effects of income disparity nationally could become global, and conflicts created by changing climate and migration could become serious.