The Unit Root should consist of units, or measures, which are governed by a set of rules declared by economists. Units may be increase or decrease as often and wherever an economist decides. For example, a corollary unit would enable an economist to make a corollary sub-unit to any unit already made. Or an autoregressive time-series forecasting would require the economist to do what its name implies. Or an opposite secular growth would enable an economist to declare reverse playibility on the other economists. (Remember, the economist would declare this unit oppositely by not declaring it.)

And we must all wear masks.