Alan Kay, a brilliant polymath who has worked at Atari, Xerox, Apple, and Disney, came up with as good a definition of technology as I’ve heard. “Technology,” Kay says, “is anything that was invented after you were born.” By that clever reckoning, automobiles, refrigerators, transistors, and nylon are not technologies in our eyes -- just plain old stuff. But they were once technologies for my grandfather. By the same logic, CDs, the web, Mylar, cell phones, and GPS are authentic technologies for me – but not my kids! They’ll have their own technologies, invented in the last five minutes.