Infranet is a generative artwork realized through a population of artificial lifeforms with evolutionary neural networks, thriving upon open geospatial data of the infrastructure of the city as their sustenance and canvas. Born curious, these agents form spatial networks through which associations spread in complex contagions. In this city as organism, the data grounds an unbounded, decentralized, open-ended, and unsupervised system. Non-human beings flourish in this environment by learning, discovering, communicating, self-governing, and evolving. The invitation is to witness, through immersive visualization and sonficiation of this complex adaptive system, how a new morphologic landscape emerges as a possible but speculative city.