Calzada examines in this chapter the ways in which the hegemonic approach to the “smart city” is evolving into a new intervention category, called the “experimental city.” While this evolution presents some innovations, mainly regarding how smart citizens will be increasingly considered more as decision makers than data providers, likewise, some underlying issues arise, concerning the hidden side and ethical implications of the techno-politics of data and the urban commons. These issues engage with multi-stakeholders, particularly with the specific Penta Helix framework that brings together private sector, public sector, academia, civic society, and entrepreneurs. These innovations in urban life and its governance will inevitably bring us i...