We saw that books were being turned into e-books, blackboards were being turned into YouTube videos and lecture hall monologues were being turned into MOOCs -- massive online open courses.
책은 전자책이 되고 칠판은 유튜브 영상으로 바뀌고 강의실의 독백은 MOOC로 바뀌었어요. 대형 온라인 공개강좌요.