C2180 Sphere
"Could it be because of a coincidence? The place we came to just happens to be a loophole." We came through that hole, and we didn't care about it at the time, but there was a wall here? "
This possibility was definitely very quick and was immediately rejected by everyone. There was a loophole, which was still possible, but it was such a huge wall. They would never ignore it.
"In other words