Good point. There could be beings just as far away, with a telescope just as powerful, who are looking at us as the furthest away they can see. The Milky Way is supposed to be ~13.6 billion years old. Light can travel a long way in 13 billion years.
Something that eluded and continues to elude my consciousness is the coordinate system(s) of space including time and curvature and does each have its X Y Z Z1 Z2 ? Can only seem to find justification for X Y and Z yet if straight lines in space are an illusion the coordinates quickly call for expansion ?