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    1 year ago

    Sadly, incorrect:

    Since 2019 the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1/299792458 of a second

    Metre - Wikipedia

    • FiniteBanjo@lemmy.today
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      1 year ago

      That seems completely infeasible, how am I supposed to reach a proper haberdashery in the depths of deep space? Nobody has time for that nonsense.