Comment on If it were possible to travel back in time and manipulate events, we could take a book back in time and publish it before the author historicallt does... as a prank...

1D10@lemmy.world ⁨11⁩ ⁨hours⁩ ago

• katja@lemmy.blahaj.zone ⁨11⁩ ⁨hours⁩ ago

  Maybe time travel requires a receiver to send to? This isn’t my idea, but I don’t remember who came up with it. I don’t believe that’s possible either, but that would explain why we haven’t seen any travelers yet and still keep time travel a theoretical possibility. You can never travel further back in time than to the invention of the first time machine.

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  • Rhynoplaz@lemmy.world ⁨10⁩ ⁨hours⁩ ago

    Plot twist: The first time machine HAS been invented, but the creator thought it was a failure because there’s was no previous machine to transmit to.

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  • DeathByBigSad@sh.itjust.works ⁨11⁩ ⁨hours⁩ ago

    Primer

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    • RebekahWSD@lemmy.world ⁨10⁩ ⁨hours⁩ ago

      I watched a YouTube video about the plot and showing which timelines were where and it hurt my head lol

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    • katja@lemmy.blahaj.zone ⁨10⁩ ⁨hours⁩ ago

      Haven’t seen it, but it might be the source nevertheless.

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  • Darohan@lemmy.zip ⁨6⁩ ⁨hours⁩ ago

    There was a theoretical one I saw ages ago that was a giant cylinder rotating in space at close to the speed of light that had this limitation. I remember exactly zero details beyond physically what it was in the phrase “time cone”.

    Seems like it’s probably the Tipler Cylinder

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