I'm wondering how space-time is a dimension in itself. I think that time isn't a dimension, but the FLOW of time is. An object experiencing higher gravitational forces, or speed will experience a flow of time that is faster than someone who is experiencing less. Why? Boy, if I knew. But the important thing to note, is that the time flow for the individual is always 1. It is always the same. Someone in different conditions, the flow of time may be 1/2, or 400, or 1.0001, but in their perspective, it is always 1. In essence, time is just a way to measure the flow of events. One second, an object is here, the next, it is somewhere else. A car moving at 40 mph will still be moving without a concept of time, but we don't know how fast it will be moving.
