The economist wrote a similar piece a few years back: http://www.economist.com/node/13496638 http://www.economist.com/node/13496638 I remember seeing a good d

The economist wrote a similar piece a few years back: http://www.economist.com/node/13496638 http://www.economist.com/node/13496638 I remember seeing a good discussion here on HN about the article, though it seems to have disappeared.