Across the different vernaculars of the world's urban majorities, there is renewed bewilderment as to what is going on in the cities in which they reside and frequently self-build. Prices are unaffordable and they are either pushed out or strongly lured away from central locations. Work is increasingly temporary, if available at all, and there is often just too much labour involved to keep lives viably in place. Not only do they look for affordability and new opportunities in increasingly distant suburbs and hinterlands, but for orientations, for ways of reading where things are heading, increasingly hedging their bets across multiple locations and affiliations. Coming together to write this piece from our own multiple orientations, we are eight researchers who, over the past year, joined to consider how variegated trajectories of expansion unsettle the current logic of city-making. We have used the notion of extensions as a way of thinking about operating in the middle of things, as both a reflection of and a way of dealing with this unsettling. An unsettling that disrupts clear designations of points of departure and arrival, movement and settlement, centre and periphery, and time and space