Coursera president and co-founder Daphne Koller talks with Recode's Kara Swisher about how she helped build the popular online learning platform after a successful early experiment at Stanford University. Koller says the future of higher education is a mixture of online and offline learning, with people continually going back to school in some form throughout their lives, rather than stopping in their 20s. She discusses whether universities themselves are at risk of going extinct and whether technologies like artificial intelligence and virtual reality could replace a college professor.