The Giant Korean@lemmy.world to Showerthoughts@lemmy.worldEnglish · 7 months agoThe reason why we never meet time travelers is because our civilization ends before the technology can come to fruition.message-squaremessage-square94fedilinkarrow-up1268arrow-down124file-text
arrow-up1244arrow-down1message-squareThe reason why we never meet time travelers is because our civilization ends before the technology can come to fruition.The Giant Korean@lemmy.world to Showerthoughts@lemmy.worldEnglish · 7 months agomessage-square94fedilinkfile-text
minus-squarejkrtnlinkfedilinkarrow-up1·7 months agoGR predicts “closed time-like curves,” but they require weird conditions (an infinitely dense and infinitely long rotating string) or negative energy, and you can only ever travel to the start of the loop at the earliest.
GR predicts “closed time-like curves,” but they require weird conditions (an infinitely dense and infinitely long rotating string) or negative energy, and you can only ever travel to the start of the loop at the earliest.