Machine, Platform, CrowdWe live in strange times. A machine plays the strategy game Go better than any human; upstarts like Apple and Google destroy industry stalwarts such as Nokia; ideas from the crowd are repeatedly more innovative than corporate research labs. MIT's Andrew McAfee and Erik Brynjolfsson know what it takes to master this digital powered shift: we must rethink the integration of minds and machines, of products and platforms, and of the core and the crowd. In