The world of work is evolving to allow people to work in their own time and own way. This makes a huge impact on the possibilities for working parents or people with other time intense interests outside of work. However, what does this mean for work life balance? If we work flexible hours to allow us to spend time with our children then when do we switch off and are we able to achieve the '3rd metric'. I believe that we are on the precipice of a big shift in our collective attitude to how we work, but right now I have more questions than answers.