All war, whatever temporary dislocation of business it may involve, must ultimately, as a principal form of destruction, assist the intensive cultivation of demand which constitutes nearly the whole of modern trade. The industrial revolution of the nineteenth century with all its labour-saving machines was originally an economy of necessary production; by the middle of the century it overshot its mark, and hastened the world to the brink of the opposite disaster of over-production. In the present commercial era we are still suspended over that dreadful brink. Nothing can stop the accelerated flux of mechanical production; and we are saved from falling into the abyss only by the unnatural increase of ordinary consumption. The consumption of the ordinary markets, even when stimulated by the most violent tonics of advertisement, is strictly limited, and the limits have long been overtaken. The accelerated consumption could only be maintained by the discovery of new markets, which was undertaken by means of the political catch-words of Imperialism and Colonial Expansion;[41] or else by the wholesale destruction of existing supplies. As the number of new markets and their capacity for consuming things they don't want is ultimately just as limited as the number and capacity of home markets (for obviously the time must come when all the Chinamen and Koutso-Vlachs and South Sea Islanders have already been supplied with ready-made brown boots and tinned salmon), only one method remained by which Commerce and Industry might escape, or at least postpone, the penalty of half a century of over-production. This was by the partial destruction of the world's existing supplies. If this could be arranged, there might be a genuine demand for them to be replaced. Sec. 3 War a form of Destruction