99% invisible did a pretty good episode on that: 
<a href="http:&#x2F;&#x2F;99percentinvisible.org&#x2F;episode&#x2F;children-of-the-magenta-automation-paradox-pt-1&#x2F;" rel="nofollow">http:&#x2F;&#x2F;99percentinvisible.org&#x2F;episode&#x2F;children-of-the-magent...</a>