Not disagreeing, just clarifying. You could look arbitrarily into the earth's past from our reference frame on the planet by viewing it from any distance as long as you did not travel from the earth to get there. When I saw the word travel, that is what I was referring to. If you left from the surface, you could never see anything that happened before you left, no matter how far nor how fast you traveled. That was my point. Which, in retrospect, was not the point you were making.