But from the perspective of the four-dimensional world, this is another story.
The three-dimensional world cannot understand the four-dimensional world at all, but conversely, the four-dimensional world can see through the three-dimensional world clearly.
This is like how humans can clearly see the entirety of two-dimensional paper people, while the paper people can't see humans and completely can't understand what the three-dimensional world is.
Higher dimensions can clearly see through lower dimensions, while lower dimensions cannot understand higher dimensions at all, nor can they even imagine what higher dimensions look like; this is the iron rule between dimensions.
The moment they first made contact with the three-dimensional world, the four-dimensional world completely saw through all the information of the entire three-dimensional world.
Upon seeing through it, they were very delighted.
