This episode features Dr Marcin Barszczewski, Dr Aleks Marsh and Dr Alan Mullan discussing how school starting age impacts on future success. In this episode we discuss what is success? And how can we measure it? In the age of big data are we asking the right questions, collecting the right data and reaching the right conclusions? Is school merely means to an end to being academically successful or is it a mechanism for intellectual, social and emotional development contributing to lifelong well-being?