Is economic growth over?

I found this on Ray Kurzweil's site.

'Global growth from the current industrial revolution (computers, the web, mobile phones) is slowing — especially in advanced-technology economies, and long-term economic growth may grind to a halt, Robert J. Gordon, Stanley G. Harris Professor in the Social Sciences and Professor of Economics at Northwestern University, has argued.

Now economist Paul Krugman counters in The New York Times that we are moving toward a…' 

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