Gregory's Server@Ash_Crow @whknott @IHasWisdom Just because a unit of measurement is decimal, doesn't mean people think and talk in scientific numeric prefixes and "ten exponent five" and whatnot. People find a few reliable linguistic landmarks and use that with a shared understanding, in any culture.
@Ash_Crow @whknott @IHasWisdom It just happens that the linguistic landmarks used (mostly cm, m and km) are on a single decimal scale, which you learn in school, unlocking extra power for *some* use cases.