Is USA Fading Away As A Leader?

An in-depth article by Robert Kagan, “Not Fade Away:  The Myth Of American Decline” says no.  

For much of the history of supercomputers, US had the fastest supercomputer in the world.  The last two decades was a slug fest between the US and Japan, with China just recently entering the race.  This analogy seems fitting to Kagan's article.

Btw the US retook the lead this year.  Here's the link:  http://www.bbc.com/news/technology-18457716
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