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					Originally Posted by Phage
					
				 
				I did not explain it well, but the arrangement I was thinking of has each of the sheet's edges being pulled away from the center of the sheet simultaneously. Of course a 2D analogy will never explain the 3D concept perfectly. 
			
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 thats what i thought you meant, even in that situation the centre of the expansion is on the sheet itself. A 2d analogy will never explain the 3d perfectly but stripping away a dimension makes it possible for us to comprehend possiblilities such as centres of expansion not existing within our 3d framework.