- #1
robertjford80
- 388
- 0
We are often told that to understand why the universe does not have an edge think of it like the Earth which has no edge. But I think this analogy breaks down because you can escape from the Earth's gravity and enter into outer space, plus you can dig into Earth and theoretically come out the other side. Do we have any good evidence for understand what would happen if we kept traveling in one direction in the universe?