A friend of mine recently forwarded me one of those emails. I’m sure you’re familiar with them: lots of cute photos, and when you scroll to the bottom, you typically see some kind of humorous statement. This particular email had several pictures, all of teenagers—at the park, in a restaurant or car, at a baseball game. And in every image, the teens wereahunched over, totally engrossed in their cell phones. The very last photo is of Albert Einstein, and it’s accompanied by a quote from him: “I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”