Rotation and Dimension

One unsurpassable maximum quantity is Angular Degree--whether 360, or otherwise, depending on the choice of unit--because it is derived from Rotation, which is finite for the purpose.  Now, any n-Dimensional Cartesian grid entails Right Angles that define and distinguish Dimensions, e. g. that between an x-axis and a y-axis.  Thus, any such grid presupposes a Rotation.  Hence, there is at least one Motion that cannot be represented by the standard means of Modern Physics.