Japan was completely destroyed by war, Tokyo was leveled and look at them now, however, they didn't pay for much of the reconstruction, the USA did.
restarting a society can be a very good thing...given the knowledge we now posses.
world super powers: China,Russia,
World powers: Great Britain, India, south Korea, Japan
given the scenario USA doesn't exist by 2100, the USA falls out of the ranking completely.
Global climate change over the next 93 years will create unique side effects across the globe.
i am of the opinion that Canada will become the worlds bread basket.