Think of any common tool: a hammer, a knife, or a compass. When used properly, tools yield amazing results. You can build something, carve a piece wood, or find your way home. Digital tools should be no different. They should help boys grow their minds. They should help them gain knowledge and facilitate new ways of seeing the world. Sounds great but there’s a problem. Unlike a hammer, digital tools intrude into the mind. They evoke strong emotions. They tamper with neurological reward systems. Some who study addiction are now saying they can hijack the brain. At the very least, they are designed to keep people’s attention for as long as humanly possible. Boys seem to be the most susceptible. Over the years, I’ve observed a disturbing trend. It is also happening at the national level. Boys (and young men) have become the heaviest screen users. When you break down …