02NOTEBOOK-articleLargeBy JEFFREY J. SELINGO

New York Times

When massive open online courses first grabbed the spotlight in 2011, many saw in them promise of a revolutionary force that would disrupt traditional higher education by expanding access and reducing costs. The hope was that MOOCs — classes from elite universities, most of them free, in some cases enrolling hundreds of thousands of students each — would make it possible for anyone to acquire an education, from a villager in Turkey to a college dropout in the United States.