Why do you say that? But, as to why a a strip, because you appear to walk in a straight line but end up at the same point. It could have been a sphere too, bu

Why do you say that? But, as to why a a strip, because you appear to walk in a straight line but end up at the same point. It could have been a sphere too, but you have more dimensions to move in, and they aren't nearly as cool.