Finally time may map onto interaction - the users' own subjective time as they manipulate various parameters themselves. Both the above categories may be used in traditional pre-recorded media, but interaction adds different aspect. In fact interactive visualisation can be used with either of the previous two categories. We'll return to interactive visualisation later. Ignoring superstring theory, we live in three-dimensional approximately Euclidean world.
Sight is literally a superficial sense.
Let's unpack the answer. With stereoscopic vision and other depth cues, we can do a bit better and get an estimate of the distance of any object in any direction. The fact that one of the 'D's of vision is on the wrong side means that we can see at most one thing in each direction. In the physical world this is the closest object. In a computer visualisation this could be objects at a fixed distance, objects with certain attributes, or even the furthest objects.