Innovation and originality are close cousins. We think of creative innovators as people with new ideas. But to read Malcolm Gladwell on the subject is to be reminded of a distinction: An innovator may not be the one with the new idea — but with a new take on an old idea. Robert Siegel interviews Gladwell, who wrote "Creation Myth: Xerox PARC, Apple, and the truth about innovation" in the May 16th issue of The New Yorker.

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