so would it be accurate to say that if one were to take a frame of reference on a large scale, say, the absolute centre of the universe (I know, but bear with me on this one), it’s also fairly impossible to travel back in space as well as time, seeing as by the time it takes you to take a step back to your original position, the earth has already moved enough that you are no longer there relative to your reference?
I’m not sure “an absolute reference frame” exists. But, in your scenario they’d have to lead the shot so to speak. And jump in behind where they want to be.
Not only is the earth never in the same spot, the solar system it’s never in the same spot either. Even our galaxy is moving.
so would it be accurate to say that if one were to take a frame of reference on a large scale, say, the absolute centre of the universe (I know, but bear with me on this one), it’s also fairly impossible to travel back in space as well as time, seeing as by the time it takes you to take a step back to your original position, the earth has already moved enough that you are no longer there relative to your reference?
I’m not sure “an absolute reference frame” exists. But, in your scenario they’d have to lead the shot so to speak. And jump in behind where they want to be.