that's the fun of ratios! they have two sides!
Discussion
he's wrong, also, prices are always ratios
not just misunderstanding economics but basic mathematics too, all measures are ratios of something to something else
there is some contention in the world of science about the metric system relating to this, and funny little artifacts in a museum in paris
the fun part has to do with how they devised teh metre, as that's the "divinely given" base, it's from the distance from pole to pole of the earth, divided by 10,000 - theoretically...
Fair, I misspoke about prices not being ratios. However, I'm not otherwise wrong. The cost of production is not as important as what the consumer is willing to part with to acquire something.