re: #218 LudwigVanQuixote

First off, why would you go back to the time of the original wormhole? Why is that inherently the case?

Second of all, you used the phrase “using quantum gravity.”

I promise that if I ever get the proper picture of QG in mind, after the paper to Nature or PRL, I will write about it here, (after my trip to Sweeden).

Create a wormhole at t = 0. Drag one end of it at 0.5c 4.26 LY away. The wormhole gets to AC at t = 8.52 y, but the wormholes frame of reference the journey being dragged to AC only took 7.38 years. So you travel through the worm one from Earth to AC, you go back in time 1.14 years. Since any trip outside the wormhole back to earth will take at least 4.26 years, there’s no casualty violation possible.

So at t_earth = 8.52y and t_AC = 7.38y, you go back to Earth through that same worm hole… you go forward in time by 1.14s back to “normal”. No time travel occurs that can result in universe destroying paradoxes….. BUT

if at t_earth = 8.52y and t_AC = 7.38y, you decide to drag another wormhole originating at AC back to Earth at .5c, the time at each end of that wormhole would be t_earth = 14.76y and t_AC= 15.90y.

If you travel through both holes in a loop fashion, each time you go through you end up back in time by 1.14 years. 4 complete cycles (I think) through this network and you end up back at the point when it was created.