In today's world, we absorb five times as much information as we did in 1986. We’ve created a world that has 300 exabytes of information - that’s 300 followed by 18 zero’s - and we are assaulted by it everyday. In order to cope, we multi-task. But neuroscientists have discovered that multi-tasking doesn’t really exist. What’s actually happening is that our brains are rapidly shifting focus from one thing to the next, as we fractionate information into very small...