CleverKitten wrote:
It's funny that so many people have this idea that a "Time Machine" will not only take you to a different time, but to a different place as well.
I always figured that a Time Machine will take me to any time I want, but I'll still be standing in the exact same place. Once I get to the time I desire, I'll have to find my own mode of transportation to the place I want.
What I want to know is this: If I use my Time Machine to go 24 hours into the future, so I appear in this exact same spot one day from now, how is this spot defined? If my Time Machine is sitting on the rug in front of my rocking chair, in my house---24 hours from now, the Earth will be in a different position relative to the sun and everything else in space. So, will I end up in front of my rocking chair? Or will I end up floating in space? If I want to go to a different point in time, then in order to be "here", I still need to have some way of calculating where "here" will be (was) at that point in time. Whether I want to visit San Francisco at 7:00 am on May 4, 1962, or Toyko at 7:00 am on May 4, 1962, my Time Machine still needs to find that point in space as well as time. Otherwise I'm stuck in an asteroid belt or something.