3 ms·

If we realized tomorrow we had the speed of light slightly wrong, we wouldn't change the length of a meter, we would change the definition of the meter. We've r

by sakjur 2mo ago

If we realized tomorrow we had the speed of light slightly wrong, we wouldn't change the length of a meter, we would change the definition of the meter. We've redefined the meter thrice already.

d34dman 2mo ago
Isn't it more like "meter" expands/contracts based on where you are in space?
tliltocatl 2mo ago
We wouldn't "release" that because there is simply no way to tell if it is wrong. The past redefinitions happened because previous definitions were too ambiguous rather than "wrong".