Talk:Ouroboros/@comment-46.120.136.107-20180729195349/@comment-45.56.46.26-20180824194407

The thing is, I doubt Ouroboros can affect the 'Real World', it should only be able to work in Yggdrasil or the New World. So even leaving aside the fact that the world of 21XX is probably centuries in the past, it should only be possible for Ouroboros to copy people from 21XX to the New World, not move them from the New World to 21XX.

In other words, Suzuki-kun probably still exists in 21XX (he may be brain-dead or suicidal, but whatever). A Player trying to go back to 21XX would be facing an impossibility, using a Yggdrasil item to affect the world of 21XX, where such items are merely elements of an online game. Yggdrasil items work in the New World for some reason, but that doesn't remotely imply that they can affect 21XX in any way.

So bringing over all the people you miss from 21XX to the New World should be the only actual option that would work. And they would probably be copies, rather than the originals. Though maybe a non-physical effect like the original body being left but the 'soul' being brought to the New World in the copied body would happen. It's hard to know what practical difference, if any, that would make.

Taking the time travel aspect into account, everyone in 21XX should have already died centuries ago even if nothing catastrophic happened. Trying to go back to 21XX would require travelling into the past, which poses severe theoretical difficulties compared with travelling to the future. But I don't think that you could even go back to the 'Real World' of 27XX or whatever. Because it's still the world in which Yggdrasil is just a game and all the powers from it are completely imaginary.