(* Who knows, maybe India will be next? *)

It appears that the key to economic success is lack of government interference. There is a strong correlation between government fiddling and economic health it appears. India is way too heavy-handed in that regard. Why do you think they all come over here?

I have no decent guess as to the next super-power. Perhaps China, but its past cycles suggest that such won't happen unless history does not repeat itself there.