I was thinking about the whole ice wall concept again and I have a question about it. If the ice wall truly does exist, then how come it doesn't melt around the equator? I don't see how it could be physically possible. The sun would burn a huge hole into it and all of the earth's oceans would run off the edge. On top of that, you wouldn't have to worry about having to climb a huge wall to take a picture of the earth's edge. You could just fly a plane, take a boat, or if it you were in danger of being sucked off the edge, you could probably just take a hover craft and arm yourself to the teeth for all of those MIB agents guarding the hole. Is this a safe assumption?