Is it really possible to recreate the essence of the on-campus learning experience for students and faculty scattered across the globe? Professors and students at top executive education programs would answer yes. In 2012 when Hurricane Sandy hit, MIT's Sloan School of Management had one of two options: cancel class or set up a virtual classroom. MIT opted for the latter and they haven't turned back since. The WSJ's Lindsay Gellman takes a look at MIT's virtual journey and explores if avatar-based classrooms will eventually take education by storm.