With the 'edge' of the observable universe receding from us at near lightspeed, our hopes of (our descendants) ever reaching it are nil, and even if it was reachable, it turns out the view from there is equivalent to the view from here.
For hypothetical beings there (at the distant edge of our observable universe) looking our way, we are at the 'edge' of their observable universe, but we can cast our gaze further along their same sight line towards us, and note we see at the 'edge' of our observable universe what they see at the 'edge' of theirs. And you can keep doing this thought experiment further and further in that direction and never get to a region of the universe that is lopsided looking, implying an actual 'edge'.
So we have an infinite universe of finite age. Weird, huh ?
For hypothetical beings there (at the distant edge of our observable universe) looking our way, we are at the 'edge' of their observable universe, but we can cast our gaze further along their same sight line towards us, and note we see at the 'edge' of our observable universe what they see at the 'edge' of theirs. And you can keep doing this thought experiment further and further in that direction and never get to a region of the universe that is lopsided looking, implying an actual 'edge'.
So we have an infinite universe of finite age. Weird, huh ?
