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I like this visualization of America's richest people that shows some patterns:

http://www.forbes.com/2007/09/18/billionaire-social-mapping-...

It shows that all those with a net worth over 5.5 bln got graduate degrees or went to prestigious schools, or both

Correlation doesn't prove causation....?

Did they go to prestigious schools and get graduate degrees because they were rich, or did they become rich because they went to prestigious schools and got graduate degrees?

The visualization is interesting, no doubt, but I found it to have too little detail to really be able to draw any conclusions from.

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