The parent post was trying to say "13 billion lightyears in <--- that direction and 13 billion lightyears in ---> this direction", because we happen to be at a

The parent post was trying to say "13 billion lightyears in <--- that direction and 13 billion lightyears in ---> this direction", because we happen to be at a relatively fixed point in space and can look in both directions. That doesn't assume we're at the center of the Universe, only that the light has reached us coming from both directions for as long as the Universe has been around.