News for hackers. Stuff that matters.

A comment on The horizon problem for faster than light travel. Parent comment

Re:The horizon problem for faster than light travel by mannerheim on Thursday January 20, 2022 @10:58PM (#30018959)
No, it still results in time travel.

> To answer your question: any FTL drive can be used to create closed time-like loops. With these you can travel back in time, but you get stuck in a loop.

https://physics.stackexchange.com/a/247048

[ Parent | on HN ]
Re:The horizon problem for faster than light travel by xupybd on Thursday January 20, 2022 @11:14PM (#30019070)
Okay, I think there is something I don't understand here. That link references a book I might have to read "Time Travel and Warp Drives".

Thanks!

[ Parent | on HN ]