To install a door, for example, it must have symmetry. The frame and the door must be in alignment.
In the same way, doing econometrics, the metrician explains the geometry of alignment, describing how the measurable values fit together to form the shape of objective reality.
It is obvious if the door does not fit — like when equity values keep rising to record levels against a flattening yield curve. That door does not jam right! Nevertheless, we are expected to believe that it does. Objective reality is then more political than economic, jamming the door shut with the values out of alignment.