Just got around to reading +Thomas Goetz 's interesting piece on feedback loops in Wired. http://www.wired.com/magazine/2011/06/ff_feedbackloop/

Thomas focuses on psychological loops, but as he mentions, loops are everywhere in nature. They do seem like a pretty universal solution to life in a complicated world. Reading the piece, I was reminded of the hideously complicated feedback loops that E. coli (and all other cells) use to stay stable in an unstable world, which I learned about while writing Microcosm. One of the scientists who did a lot of E. coli work, John Doyle at Caltech, started out doing control theory for airplanes, got into biology in a big way, and then started applying the same feedback loops to controlling the Internet. (I wrote about him here in Discover a few years ago: http://discovermagazine.com/2007/nov/this-man-wants-to-control-the-internet )
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