If there's one thing that is totally arbitrary it's the imperial system, which is entirely based on random bullshit, such as the distance between the nose and the thumb of king henry 1 of england, I mean seriously, that's the sort of retarded stuffs the imperial system is made of At least the metric system remains consistent all the way, there's nothing consistent when it comes to the imperial system So if we have to go for "arbitrary" vs "arbitrary", at least the metric system is handy, and coherent. And at least the metre isn't based on the length of some moron's dick or whatever