Yet the developments of the nineteenth century were only the dawning of the new order. The first great cities of the new time were horribly inconvenient, darkened by smoky fogs, insanitary and noisy; but the discovery of new methods of building, new methods of heating, changed all this. Between 1900 and 2000 the march of change was still more rapid; and between 2000 and 2100 the continually accelerated progress of human invention made the reign of Victoria the Good seem at last an almost incredible vision of idyllic tranquil days.
The introduction of railways was only the first step in that development of those means of locomotion which finally revolutionised human life. By the year 2000 railways and roads had vanished together. The railways, robbed of their rails, had become weedy ridges and ditches upon the face of the world;