Life is going a full cirlce of this thread Mr.SuN, man thought that the Earth was flat, then one man proved that the Earth is round and now we have to think that the earth is flat and part of a square. Certainly, the first thing is all will have vertigo or dizzy spells because of the erratic rotation of the square. The horizon would look difficult and certainly, our astronauts would have a tough time understanding the pictures.Just imagine people living at the corners of the squares and on either side were the surfaces meet. Their lives would be chaotic, maybe half the time they have to travel vertically up and then half the time travel horizontally. Air travel would be funny and would need the aerocopter (half aeroplane and half helicopter). There would be a realistic chance of falling off the face of Earth for some. I pity the birds as their inner compass and migratory routes would be so entangled that there would be a major chaos in the air with all types of birds flying but not knowing which direction and how far. No, Mr.SuN, please let us keep the Earth as it is.