this post was submitted on 13 Mar 2025
756 points (98.8% liked)

Memes

48455 readers
3039 users here now

Rules:

  1. Be civil and nice.
  2. Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you have to.

founded 5 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[โ€“] stebo02@lemmy.dbzer0.com 1 points 9 hours ago (1 children)

please explain to me how do you think being stationary in space works?

[โ€“] Aux@feddit.uk 3 points 7 hours ago

There are two ways of looking at it.

  1. The time machine is using itself as a point of reference to comply with general relativity. The only way to time travel is to move forward in time. The way to move through time would be to move a lot faster than the Earth, so that every minute for you inside the time machine would equal to many years for earthlings. And if you're moving that fast you'll fly away from Earth.
  2. The time machine somehow has a knowledge of the whole universe, this way a Newtonian model applies and an absolute point of reference exists. That allows unrestricted travel both forwards and backwards in time, but that also means that the Earth will inevitably move from under the machine to follow its path across the universe.

No matter how you twist it you'll end up all alone in space. You need a machine which can move through both time and space at the same time.