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    https://www.youtube.com/watch?v=K5wCfYujRdE

    http://www.ted.com Economics writer Tim Harford studies complex systems -- and finds a surprising link among the successful ones: they were built through tri...

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    https://www.youtube.com/watch?v=bBx2Y5HhplI

    Hey, wasn't this talk "banned"? Nope -- and in fact, if you want more than this short talk, watch Nick Hanauer deliver an expanded, updated version -- with n...



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