‘Not at all,’ said my neighbor. ‘The trouble is that they’re so quarrelsome. As soon as anyone arrives he settles in some street. Before he’s been there twenty-four hours he quarrels with his neighbour. Before the week is over he’s quarrelled so badly that he decides to move. Very likely he finds the next street empty because all the people there have quarrelled with their neighbors—and moved. If so he settles in. If by any chance the street is full, he goes further. But even if he stays, it makes no odds. He’s sure to have another quarrel pretty soon and then he’ll move on again. Finally he’ll move right out to the edge of the town and build a new house. You see, it’s easy here. You’ve only got to think a house and there it is. That’s how the town keeps on growing.’
C. S. Lewis, The Great Divorce, p. 10