The document discusses how cities and workstyles are becoming more "open source" through increased mobility and flexible work arrangements. It describes shifts in lifestyle from fixed 9-5 work schedules to 24/7 work, workstyles from the office being the primary workspace to away from the office, officespace from underutilized fixed desks to densified shared spaces, foot traffic patterns from limited lunch hours to extended hours, building pro formas from large single tenants to smaller multi-tenant clusters, and carbon emissions from high per capita to lower through mobility and sustainability. The implications discussed include changes for individuals, companies, building owners, policymakers, and metrics around collaboration, virtual work, social computing, cluster design, employee autonomy, operating costs,