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Many a hungry time traveler has Googled ‘trilobites shellfish allergy’ only to find their carrier had no coverage in the Ordovician.

https://explainxkcd.com/2976/

  • MonkderVierte@lemmy.ml
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    2 months ago

    Since a time machine has to fiddle with space-time somehow and that is an attribute of the universe – i agree, the universe is the frame of reference.