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 

 10cm are (10/100) * 1 meter 
The meter is a SI unit that's well defined and doesn't change 👍 

 1m of what? 😂
(I think you are missing the point of my satire)