Does anyone need to listen to music while they jog? What did people do before 60-in. plasma televisions illuminated their lives? It's nice to think that we live in a consumer-driven society, but by and large, ours seems more product-driven than anything. A team of researchers cooks up a nifty little gadget and hands it over to marketing, which in turns spends truckloads of money convincing consumers that something they might want is actually something they need.
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