On June 29, 2007, the first iPhone went on sale. On that same day, a boy named Noah Schmick was born. Over the next 15 years, the iPhone grew…and so did Noah. Through interviews with current and former Apple executives like Tony Fadell and Greg Joswiak, WSJ’s Joanna Stern traces how Apple’s invention matured and changed all of us, for better or for worse. Produced by Wall Street Journal.