Allow for multiple stable states, like ecologically resilient systems. Include different sources, uses, capabilities, and economic models rather than one dominant trait.
Systems are ecologically resilient precisely because they do not depend on only one aspect of a system to dominate and hold fast. Ecological systems allow for multiple stable states, including different uses, capabilities, and economic models. A diverse built environment, as an ecosystem for humans, can support multiple different economic, social, cultural, and functional uses.