i have a man who is definitely not an Arab here to explain this to you:
"But few realize that naturally born weights have a logic to them: we use feet, miles, pounds, inches, furlongs, stones (in Britain) because these are remarkably intuitive and we can use them with a minimal expenditure of cognitive effort—and all cultures seem to have similar measurements with some physical correspondence to the everyday. A meter does not match anything; a foot does. I can imagine the meaning of “thirty feet” with minimal effort. A mile, from the Latin milia passum, is a thousand paces. Likewise a stone (14 pounds) corresponds to … well, a stone. An inch (or pouce) corresponds to a thumb. A furlong is the distance one can sprint before running out of breath. A pound, from libra, is what you can imagine holding in your hands. Recall from the story of Thales in Chapter 12 that we used thekel or shekel: these mean “weight” in Canaanite-Semitic languages, something with a physical connotation, similar to the pound. There is a certain nonrandomness to how these units came to be in an ancestral environment—and the digital system itself comes from the correspondence to the ten fingers.
As I am writing these lines, no doubt, some European Union official of the type who eats 200 grams of well-cooked meat with 200 centiliters’ worth of red wine every day for dinner (the optimal quantity for his health benefits) is concocting plans to promote the “efficiency” of the metric system deep into the countryside of the member countries