At Japan Times Yoichi Funabashi predicts how the world will look in 2050:
In the 2030s, the Chinese government will likely reorient the course of Xi Jinping’s policies to consolidate external hegemony and internal autocracy. Debt and population decline will drag the feet of China’s economic growth, and the government may prove unable to halt the overseas flight of Chinese elites.
By then, more states may have opted for and concentrated within the American system of alliances. The U.S. and India may forge a quasi-alliance in order to counter China, although Trump now seems to oblige India to distance itself from the U.S.
The populations of overseas Indians and Chinese will grow dramatically. The Malacca and Hormuz Straits will pose dilemmas for China and India respectively. Given the vulnerability of their energy supply and increased international business presence, both China and India will strengthen their offensive and hegemonic stances toward the rest of the world. Maritime tensions in the Indian and Pacific oceans will supplant land-based conflict in the Himalayan region as the focal point of Sino-Indian relations.
There’s a lot more. Much of what he predicts is based on the persistence theory. However the future may unfold I will not live to see 2050 and I find that gratifying. It doesn’t sound very appealing to me.