This document discusses how digital manufacturing and open innovation are transforming the innovation system in Chicago. It describes Chicago's innovation ecosystem as a complex adaptive system consisting of various players like investors, incubators, and startups that interact in nonlinear ways. Key elements of this system include infrastructure for digital fabrication, organizations like Array of Things and UI Labs, and spaces like mHUB that foster collaboration. This new agile, open model allows for rapid experimentation, adaptation, and the creation of novel solutions through the dispersed interactions of diverse agents across the city.