Amid the continuing trend of polarization into Democrat or Republican extremes, an increasing flow of immigrants and a waning, but still the strongest military presence, the U.S. will continue to be a superpower, but to a somewhat lesser extent, a group of academic experts recently concluded.

The four, one Japanese and three Americans, discussed the future of the U.S. in a symposium "Where is the U.S. going? — Pictures of the U.S. in 2025," organized by the Keizai Koho Center in Tokyo on Nov. 21.

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