Hovering in hyperspace has decided advantages, for anyone looking down from hyperspace would have the powers of a god. Not only would light pass beneath him, making him invisible, he could also pass over objects. In other words, he could disappear at will and walk through walls. By simply leaping into the third dimension, he would vanish from the universe of Flatland. And if he jumped back onto the tabletop, he would suddenly rematerialize out of nowhere. He could therefore escape from any jail. A prison in Flatland would consist of a circle drawn around a prisoner, so it would be easy to
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