This book closes by returning to the problem of the polis, and to considering the extent to which a fresh approach can contribute new thoughts to an old debate. In considering what exactly an ancient city was, its activities are emphasised: the fact that a city formed political and economic connection with its neighbours helped to define it. The potentials and pitfalls of modelling for historical enquiry are considered, and the case is made for a more data-driven and ‘scientific’ classical archaeology of the next generation.