As We Live In A 3D World We Have Access To And Understand 1D,2D,
Physicists Are Always Looking For Hard Evidence Of The Possibility Of Other Dimensions.
One Concept I Like Is, If We Have 3D,2D,1D
In A 4th Dimension We Would Have 3D,2D,1D
And In The 5th dimension 4D,3D,2D,1D, And So On.