Maybe, but knowing mm^2 doesn't really help either. This AWG system has the benefit of discretization of wire thickness, so manufacturers can optimize their pro

Maybe, but knowing mm^2 doesn't really help either. This AWG system has the benefit of discretization of wire thickness, so manufacturers can optimize their processes for only ~30 gauges instead of answering "what do you mean you don't have 3.1415mm^2 wires?!"