The prof was as surprised as we were, so I'm assuming it was in fact the ghost of Borges, who has nothing better to do than to hang around classrooms where his works are being discussed. (Actually, if I were the ghost of Borges, I would spend as much time as I could messing with impressionable college students.)

Oooooh, crazy 1970s ideas of the future? I am so there. (It isn't necessary to watch them in order, right? I'm getting fed up with our progress on the second one and am considering skipping it for now.)