His work engineers productive collaborations between sensitive traditional social systems, such as religions and democracy, and advanced digital technologies under conditions of diversity. The conversation is remarkably ambitious and concrete about two tasks: building more capable systems and aligning those systems with human values. For every detailed roadmap to superintelligence, there is little more than a gesture toward the human and institutional infrastructure to ensure its benefits are achieved safely and broadly shared. Just over a decade ago, multisectoral coalitions assembled policymakers, technologists and urban planners around “smart cities” to optimize urban life through integrated digital infrastructure; most struggled to deliver. It is time to build as ambitiously for our social systems as we have for our algorithms.