The average attention span of a Generation Z-er is eight seconds; down from 12 seconds for their millennial counterparts. 83 per cent of 11 to 19-year-olds say that they're more ambitious than their parents. 99 per cent of 16 to 18-year-olds say happiness is 'being true to myself'. Apparently. A new musical about teenagers today, created with and for them. Its about what goes on both inside and outside our heads.