What was after the universe? Nothing. But was there anything round the universe to show where it stopped before the nothing place began?
Astronomers say the universe is finite, which is a comforting thought for those people who can't remember where they leave things.
It would be kind of magical if we were just happening to be able to see right to some boundary and then something crazy happened beyond that, like galaxies ceased to exist. I mean, that just seems nuts.
One could say: "The boundary condition of the universe is that it has no boundary." The universe would be completely self-contained and not affected by anything outside itself. It would neither be created nor destroyed. It would just BE.
The edge of a black hole, the event horizon, is a boundary that marks the point of no return. Once an object crosses the event horizon, it cannot escape and will be ripped to pieces, atom by atom.
I must cite an intrinsic condition of the universe. We set forth in any direction which seems convenient; each leads to the same place: the end of the universe.
A fact is the end or last issue of spirit. The visible creation is the terminus or the circumference of the invisible world.
At last he came to a door, with these words in glowing emeralds: THE END OF THE WORLD He did not hesitate. He opened the door and stepped through.