We are at the dawn of a new age: 4.0. In economic terms, 4.0 is a post-growth world, characterised not only by a sharply-focussed awareness of the global economy as a networked and connected ecosystem, but also by a reframing of what constitutes economic success, what ‘growth’ means and how it is manifest. In a post-growth world, productivity (and by extension GDP) as a unit of measurement is becoming increasingly obsolete. My TEDx will present ‘A Fourth Way’ - a new system of economic measurement for 4.0 based on the unit of connectivity, exploring how we can assess and measure social connections, individual contribution to place and our collective – connected – contribution to global sustainability goals.