Originally Posted by

**camtaylor17**
But there must be something more fundamental to time and space themselves. For instance, time cannot simply need three spatial dimensions because it is easy enough to imagine how it could exist with only two or one spatial dimension.

Similarily, if you take the stance that a dimension is only another means of getting from point A to B [just think.. in a one spatial dimensional universe, adding another dimension allows for a person to travel from A to B in a longer path in which they could avoid obsticles, which might otherwise be unavoidable if they were in a one dimensional universe in which they would be blocked by anything directly between points A and B. An added dimension also adds on the near-limitless number of possibilities in which paths a person could take to get from A to B, as opposed to the one possible path in the one spatial dimension. Of course by adding a third dimension, you only exponentiate the number of possible paths that person could take.. if they were suddenly able to fly for instance.

This is where me begin to wonder what a forth spatial dimension might look like.. we can assume it would exponentiate further the number of ways we could get from point A to B, I do not know how a spatial dimension could do that.. but a time dimension can.

With the addition of a time dimension, travelling from point A to B becomes possible because your location can now change within space from A to B. Obvious enough? Okay, so now lets consider what a second time dimension might look like!

If a spatial dimension allows you to get from point A to B in just one direction, and our one time dimension only allows us to get from one given point in time to another by allowing time to simply flow - would a second time dimension not likely allow us to go from point A (in time) to point B (in time) without simply following one path? The only way I can visualize this is that if a second time dimension runs perpendicular to our first time dimension (just as the first two spatial dimensions exist perpendicular to one another) then it would not allow for time travel really, but in my oppinion, likely the ability to dialate time. As a person were to move further from the time dimension "y" value of 0 (if the time dimension "x" were the one we experience) they would be able to continue on their own relative course through spacetime while moving more slowly relative to the passage of a single linear course of time. This makes me wonder if gravity's affect on time dialation may not be related to a secondary time dimension.