Wish I knew?

In mathematics and physics, the dimension of a space or object is informally defined as the minimum number of coordinates needed to specify each point within it. Thus a line has a dimension of one because only one coordinate is needed to specify a point on it. Alternatively the magnitude of something in a particular direction (especially length or width or height)

According to the first Gravity is not a 'dimension'. According to the second? Maybe it could be? I'm not particularly enchanted by dimensions myself. It's about your outlook. Define it as 'dimensions' are what create 'SpaceTime' and it will feel as if they need to be there 'first'. Define it as if a 'field' creates 'dimensions' and all dimensions you see becomes your construct of defining yourself inside a space.

A space in this manner do not need any 'dimensions' at all as I see it. We need 'dimensions' for our definitions though

. But looking at it the other way 'dimensions' no longer need to be defined as above. They are in practicality of course, but they are also constructs describing 'somewhere' where we are in relation to each other.

that makes it possible to question the idea of 'dimensions' as something 'put together' to me. Never liked the idea of SpaceTime as your 'Lego' with 'dimensions' being attachable modules. Then again, this is my guess about what 'dimensions' should be seen as.