Time Traveler Causes of Death
xkcd.com

alt text:

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/

  • JohnDClay@sh.itjust.worksEnglish
    0·
    10 months ago

    There is no cosmic frame of reference. Earth is moving, the sun is moving, the galaxy is moving, but you can choose any frame of reference within that. It’d be really silly to use the suns frame of reference, you’d use Earth’s.

      • TechieDamien@lemmy.mlEnglish
        1·
        10 months ago

        We disproved a cosmic frame of reference, or “ether” hypothesis using interferometry. It is well worth a read, I think you will enjoy it.

        • Malfeasant@lemm.eeEnglish
          0·
          10 months ago

          Not exactly - what was proven is that there’s no way to distinguish between inertial frames of reference. There could be a universal frame of reference, which would most likely be the average velocity of all things in the universe. There’s not much point in making a distinction in most cases, because if you can’t detect it, it might as well not exist - but since we’re making up time travel, we might as well make up a universal frame of reference, it doesn’t break anything time travel hasn’t already broken…

      • masterofn001@lemmy.caEnglish
        1·
        10 months ago

        It isn’t about how humans view their place in the cosmos.

        It’s about relativity.

        Space and time are inseparable. Hence the term space-time. You can thank Einstein for that.

        The comment you replied to states It’s also about frames of reference, probably one of the most crucial aspects of relaticity.

        Einstein has proven that time and space appear and are experienced differently for each and every observer. With the effects being significantly different depending on gravity, speed and distances.

        If you could reverse time travel then the space would conform to the time you travelled to.

          • masterofn001@lemmy.caEnglish
            0·
            10 months ago

            I don’t exist in the future, yet, here I am, in the future, with all my clothes in tact.

            There is nothing in physics that actually says it’s impossible.

            Maybe your current understanding of physics says it’s impossible.

            Nothing about it is about me.

            IT’S ABOUT FRAMES OF FUCKING REFERENCE. Inertial frames of reference, relativistic frames of reference, etc.

            (This is relativity, if you think it’s about me, you obviously need to learn little more.)

            *Also, I’ve blocked this user.