But if the sim crashes and green cubes rain from the sky, do you get a refund on tuition?

CyberOne: Law in the Court of Public Opinion
“Enrollment to the Harvard Extension School is open to the public. Extension students will experience portions of the class through a virtual world, known as Second Life. Videos, discussions, lectures, and office hours will all take place on Berkman Island. Students from anywhere in the world will be able to interact with one another, in real time.”