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.
DeathByBigSad@sh.itjust.works 9 hours ago
RebekahWSD@lemmy.world 9 hours ago
I watched a YouTube video about the plot and showing which timelines were where and it hurt my head lol
katja@lemmy.blahaj.zone 9 hours ago
Haven’t seen it, but it might be the source nevertheless.
Darohan@lemmy.zip 5 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
Rhynoplaz@lemmy.world 9 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.