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Only weird answers?
The truth itself is weird: The meter is defined as the distance that light travels in a vacuum in 1/299,792,458 seconds.
Powers of ten my ass
The problem is that the meter is originally defined in terms of the size of the earth, which is in no way related to the speed of light.
Wasnt it defined using a wrong measurement of the size of the Earth?
Well yes, but only by a little. It was using ancient measuring techniques which were highly error-prone. Like running from one place to the next and counting the length manually. Shit like that. Still impressively close to the real size!
But if the people deciding what the meter was at first were allowed to make errors, why werent the people deciding what the new meter was?