Do you feel in control of your life or enslaved by your devices? Have you risked your life texting and driving? Do you sympathize with a test group of students who endured painful shocks rather than be separated from their phones? Digital technology is wonderful, but it's making us miserable, say former tech executives Vivek Wadhwa and Alex Salkever. There's a reason Apple CEO Tim Cook told the Guardian he won't let his nephew on social networks....