The Wall Street Journal looks at research conducted by Irving Biederman, a neuroscientist at the University of Southern California, who has been studying the evolutionary and biological basis of the human need for information – or in other words, why were so prone to looking at all this crap on the web.

New and richly interpretable information triggers a chemical reaction that makes us feel good, which in turn causes us to seek out even more of it. The reverse is true as well: We want to avoid not getting those hits because, for one, we are so averse to boredom.

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