As with all presentations, criticisms of distance learning will end the overview. The system may be designed for the user to wear visors, which project computer images. The visor also contains sensors that send information on position of head and eye movement back to the video images which in turn change, causing a continual loop feedback. Many Internet cites can be found claiming to be virtual reality cites when, by the above definition, cites are no more than very interactive information sources. Distance learning through virtual reality may never be reached in its purest form.
Distance learning implies that there is a separation of instructor and student.
Most often this involves three means of communication. In order for virtual reality teaching to occur, a virtual system would have to be delivered via the net. The military takes the lead in keeping with true distance learning through virtual reality training. To support this fact, look at what the Air Force is doing. These systems can not be transferred via the net.