Fewer things to remember is important because humans are useless at that. Hardly anyone will have an intuition for how much pressure a kg/cm^2 is as well as a N

Fewer things to remember is important because humans are useless at that. Hardly anyone will have an intuition for how much pressure a kg/cm^2 is as well as a N/cm^2 and a N/mm^2 and a kg/mm^2 and a kg/m^2 and PSI and a kPa ...