Several years ago I tried out a portable DVD player in an electronics store. It plugged into what would look like a pair of sports sunglasses and the screens were on the inside on the lenses, right in front of your eyeballs. It almost seems that if you can think of it, it can be done.
intvglm, the explanation is this: the "future Dilbert" is already using the rings and the 3-D glasses to work on his computer. Morons also wear glasses and likes to make odd motions, including typing-like gestures. Hence, they look similar from the outside.