How do you find your target when time travelling?
Nov 27
Pogo Possum asked:
The earth is travelling thru space around the sun. The sun is travelling thru the galaxy. The galaxy is travelling thru the universe. If I want to time travel back 100 years to my grandfathers home on earth, where would that home be relative to where it is now?
Tour guide
The earth is travelling thru space around the sun. The sun is travelling thru the galaxy. The galaxy is travelling thru the universe. If I want to time travel back 100 years to my grandfathers home on earth, where would that home be relative to where it is now?
Tour guide


That would be a problem, wouldn’t it? I wouldn’t worry too much, though, because it’s almost certainly impossible. Finding the location you would want in space would be the least of your difficulties.
It is a meaningless question. You have assumed that space is absolute (which it is not).