“One problem with time travel that I’ve never had explained: the earth is not where it was in space an hour ago, let alone many years ago. And we’re not just talking about where it is relative to the sun in its orbit, because the sun and its solar system is moving though space; as is the galaxy.
So to go back or forward in time, one would have to move through space as well, find where you wanted to be and make sure you don’t materialize inside a tree or a wall.”
Important safety tip. No wonder my time portal is almost always empty space. Crap. That is another six months of math computations.
lol..Good point. I ask a similar question about ghosts that can walk through walls but don’t fall through the floor.