Below thoughts have been written for my personal record. Those might be true, false, right, wrong, sane, insane etc.
Consider a classic X-axis. It is divided into infinite discrete parts.
Consider a classic Y-axis. It is also divided into infinite discrete parts.
Consider a classic X-Y plane and think about these co-ordinates : (1, -infinity ) (1, -93459485 )……..(1, -4 ) (1, -3 ) (1, -2 ) (1, -1 ) (1, 0 ) (1, 1 ) (1, 2 ) (1, 3 ) (1, 4 ).…….(1, 93459485 ) (1, -infinity )
They all have the same X-value but different Y-values. For each X-value there could be infinite number of Y-values.
If we generalize, we can say that each point of X-Axis could have some value of Y either “exist” or “not exist”.
If we extend this concept to 3rd dimension, every point on 3rd dimension can have an infinite values on it’s previous 2 dimensions.
We can imagine it as a 3 dimensional space extending in all directions.
Infinite space exists for all points in time. Time can be considered as the 4th dimension.