Reply #56: The size of the universe

[psychopomp]

is about 156 billion light-years across, or so we are inclined. The latest calculations seem to bear this out:


http://www.space.com/scienceastronomy/mystery_monday_040524.html

"Space aliens" capable of contacting us may not be corporeal, at all, which would make them no different from "ghosts" or other mythical phenomenae from legend and lore. So, basically, I do not expect it to make any difference whether something is out there to make contact with because we surely wouldn't recognize it for what it is, anyway.

Nothing that manages to slip the bonds of spacetime and make it to Earth is going to conform to our experience. At least, on a physical level.