No normal person can focus attention on a single object or idea for more than about 15 seconds. There’s a practice, though, that you can learn so as to accommodate this fact. You can use this practice to get good at concentrating. When you can stay focused, you can work without distraction while not zoning out and losing track of your surroundings. When you can stay focused, you can work productively; when your team can stay focused, amazing things happen.