00:00If you travel to the very edge of the universe, throw a spear into it, and it passes through,
00:06then it didn't actually hit the boundary. It just moved into more space.
00:11This means the universe must not actually end at the edge. It must be bigger.
00:17But if you throw the spear and it bounces off,
00:20well, that means that there still has to be something on the other side to block it.
00:25And something isn't nothing.
00:27Meaning, either way, the edge can't be the end, right?
00:32Well, this assumes that the universe has an actual edge.
00:36When in reality, space itself could just bend and warp around itself.
00:42Meaning, no matter how far you traveled, you just might never find an end to throw the spear at.
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