Comment on Fictional

• null@piefed.nullspace.lol ⁨9⁩ ⁨hours⁩ ago

  All lengths are arbitrary.

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• SpaceNoodle@lemmy.world ⁨11⁩ ⁨hours⁩ ago

  Years measure time, not distance

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  • Spectrism@feddit.org ⁨9⁩ ⁨hours⁩ ago

    Yes, but it’s part of the definition of a light-year, i.e. the distance light travels in a vacuum within one Julian calendar year. Using a year as reference to the distance light travels within a given timeframe is fairly arbitrary. We could just as well use light-months, or light-decades, or some entirely different time as reference.

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    • Cethin@lemmy.zip ⁨9⁩ ⁨hours⁩ ago

      On addition, we could measure year by a different planet. To the universe, choosing the time it takes the Earth to move around the sun one time is pretty arbitrary. Why not Mars? Or why not a totally different star system?

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    • null@piefed.nullspace.lol ⁨7⁩ ⁨hours⁩ ago

      Speed = Distance over time.

      There are no measurements of speed that won’t face that problem.

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