>>214509288
educate yourself

https://en.wikipedia.org/wiki/2019_revision_of_the_SI
https://en.wikipedia.org/wiki/United_States_customary_units
>The majority of U.S. customary units were redefined in terms of the meter and kilogram with the Mendenhall Order of 1893 and, in practice, for many years before.[3] These definitions were refined by the international yard and pound agreement of 1959.[4]
You are using the same units as everyone else, just with a sprinkle of retarded stubbornness added in. An inch is 2.54cm. Nothing more, nothing else. No human feet involved, just the same speed of light and cesium, but with an additional unnecessary conversion factor thrown in.