Metrics system is disinformation. What information does a 10cm ruler convey. The 10 is a numerator of a fraction with the denominator meaning. 
10 out of what? The 10 says nothing without a known and stable denominator. #Imperial nostr:note1kktlxvsf4tmgulwc5ag5sxpm3p2rq5ya4pwvq8yx0cs29qgwgvlsp8s8pm